Merge branch 'gl/feat/async-crew-support' into gl/feat/async-flow-kickoff

- add async support for tools
- add async tool tests
- improve tool decorator typing
- fix _run backward compatibility
- update docs and improve readability of docstrings

.env.test

@@ -0,0 +1,161 @@
+# =============================================================================
+# Test Environment Variables
+# =============================================================================
+# This file contains all environment variables needed to run tests locally
+# in a way that mimics the GitHub Actions CI environment.
+
+# =============================================================================
+
+# -----------------------------------------------------------------------------
+# LLM Provider API Keys
+# -----------------------------------------------------------------------------
+OPENAI_API_KEY=fake-api-key
+ANTHROPIC_API_KEY=fake-anthropic-key
+GEMINI_API_KEY=fake-gemini-key
+AZURE_API_KEY=fake-azure-key
+OPENROUTER_API_KEY=fake-openrouter-key
+
+# -----------------------------------------------------------------------------
+# AWS Credentials
+# -----------------------------------------------------------------------------
+AWS_ACCESS_KEY_ID=fake-aws-access-key
+AWS_SECRET_ACCESS_KEY=fake-aws-secret-key
+AWS_DEFAULT_REGION=us-east-1
+AWS_REGION_NAME=us-east-1
+
+# -----------------------------------------------------------------------------
+# Azure OpenAI Configuration
+# -----------------------------------------------------------------------------
+AZURE_ENDPOINT=https://fake-azure-endpoint.openai.azure.com
+AZURE_OPENAI_ENDPOINT=https://fake-azure-endpoint.openai.azure.com
+AZURE_OPENAI_API_KEY=fake-azure-openai-key
+AZURE_API_VERSION=2024-02-15-preview
+OPENAI_API_VERSION=2024-02-15-preview
+
+# -----------------------------------------------------------------------------
+# Google Cloud Configuration
+# -----------------------------------------------------------------------------
+#GOOGLE_CLOUD_PROJECT=fake-gcp-project
+#GOOGLE_CLOUD_LOCATION=us-central1
+
+# -----------------------------------------------------------------------------
+# OpenAI Configuration
+# -----------------------------------------------------------------------------
+OPENAI_BASE_URL=https://api.openai.com/v1
+OPENAI_API_BASE=https://api.openai.com/v1
+
+# -----------------------------------------------------------------------------
+# Search & Scraping Tool API Keys
+# -----------------------------------------------------------------------------
+SERPER_API_KEY=fake-serper-key
+EXA_API_KEY=fake-exa-key
+BRAVE_API_KEY=fake-brave-key
+FIRECRAWL_API_KEY=fake-firecrawl-key
+TAVILY_API_KEY=fake-tavily-key
+SERPAPI_API_KEY=fake-serpapi-key
+SERPLY_API_KEY=fake-serply-key
+LINKUP_API_KEY=fake-linkup-key
+PARALLEL_API_KEY=fake-parallel-key
+
+# -----------------------------------------------------------------------------
+# Exa Configuration
+# -----------------------------------------------------------------------------
+EXA_BASE_URL=https://api.exa.ai
+
+# -----------------------------------------------------------------------------
+# Web Scraping & Automation
+# -----------------------------------------------------------------------------
+BRIGHT_DATA_API_KEY=fake-brightdata-key
+BRIGHT_DATA_ZONE=fake-zone
+BRIGHTDATA_API_URL=https://api.brightdata.com
+BRIGHTDATA_DEFAULT_TIMEOUT=600
+BRIGHTDATA_DEFAULT_POLLING_INTERVAL=1
+
+OXYLABS_USERNAME=fake-oxylabs-user
+OXYLABS_PASSWORD=fake-oxylabs-pass
+
+SCRAPFLY_API_KEY=fake-scrapfly-key
+SCRAPEGRAPH_API_KEY=fake-scrapegraph-key
+
+BROWSERBASE_API_KEY=fake-browserbase-key
+BROWSERBASE_PROJECT_ID=fake-browserbase-project
+
+HYPERBROWSER_API_KEY=fake-hyperbrowser-key
+MULTION_API_KEY=fake-multion-key
+APIFY_API_TOKEN=fake-apify-token
+
+# -----------------------------------------------------------------------------
+# Database & Vector Store Credentials
+# -----------------------------------------------------------------------------
+SINGLESTOREDB_URL=mysql://fake:fake@localhost:3306/fake
+SINGLESTOREDB_HOST=localhost
+SINGLESTOREDB_PORT=3306
+SINGLESTOREDB_USER=fake-user
+SINGLESTOREDB_PASSWORD=fake-password
+SINGLESTOREDB_DATABASE=fake-database
+SINGLESTOREDB_CONNECT_TIMEOUT=30
+
+SNOWFLAKE_USER=fake-snowflake-user
+SNOWFLAKE_PASSWORD=fake-snowflake-password
+SNOWFLAKE_ACCOUNT=fake-snowflake-account
+SNOWFLAKE_WAREHOUSE=fake-snowflake-warehouse
+SNOWFLAKE_DATABASE=fake-snowflake-database
+SNOWFLAKE_SCHEMA=fake-snowflake-schema
+
+WEAVIATE_URL=http://localhost:8080
+WEAVIATE_API_KEY=fake-weaviate-key
+
+EMBEDCHAIN_DB_URI=sqlite:///test.db
+
+# Databricks Credentials
+DATABRICKS_HOST=https://fake-databricks.cloud.databricks.com
+DATABRICKS_TOKEN=fake-databricks-token
+DATABRICKS_CONFIG_PROFILE=fake-profile
+
+# MongoDB Credentials
+MONGODB_URI=mongodb://fake:fake@localhost:27017/fake
+
+# -----------------------------------------------------------------------------
+# CrewAI Platform & Enterprise
+# -----------------------------------------------------------------------------
+# setting CREWAI_PLATFORM_INTEGRATION_TOKEN causes these test to fail:
+#=========================== short test summary info ============================
+#FAILED tests/test_context.py::TestPlatformIntegrationToken::test_platform_context_manager_basic_usage - AssertionError: assert 'fake-platform-token' is None
+# +  where 'fake-platform-token' = get_platform_integration_token()
+#FAILED tests/test_context.py::TestPlatformIntegrationToken::test_context_var_isolation_between_tests - AssertionError: assert 'fake-platform-token' is None
+# +  where 'fake-platform-token' = get_platform_integration_token()
+#FAILED tests/test_context.py::TestPlatformIntegrationToken::test_multiple_sequential_context_managers - AssertionError: assert 'fake-platform-token' is None
+# +  where 'fake-platform-token' = get_platform_integration_token()
+#CREWAI_PLATFORM_INTEGRATION_TOKEN=fake-platform-token
+CREWAI_PERSONAL_ACCESS_TOKEN=fake-personal-token
+CREWAI_PLUS_URL=https://fake.crewai.com
+
+# -----------------------------------------------------------------------------
+# Other Service API Keys
+# -----------------------------------------------------------------------------
+ZAPIER_API_KEY=fake-zapier-key
+PATRONUS_API_KEY=fake-patronus-key
+MINDS_API_KEY=fake-minds-key
+HF_TOKEN=fake-hf-token
+
+# -----------------------------------------------------------------------------
+# Feature Flags/Testing Modes
+# -----------------------------------------------------------------------------
+CREWAI_DISABLE_TELEMETRY=true
+OTEL_SDK_DISABLED=true
+CREWAI_TESTING=true
+CREWAI_TRACING_ENABLED=false
+
+# -----------------------------------------------------------------------------
+# Testing/CI Configuration
+# -----------------------------------------------------------------------------
+# VCR recording mode: "none" (default), "new_episodes", "all", "once"
+PYTEST_VCR_RECORD_MODE=none
+
+# Set to "true" by GitHub when running in GitHub Actions
+# GITHUB_ACTIONS=false
+
+# -----------------------------------------------------------------------------
+# Python Configuration
+# -----------------------------------------------------------------------------
+PYTHONUNBUFFERED=1

.github/workflows/tests.yml

@@ -5,18 +5,6 @@ on: [pull_request]
 permissions:
   contents: read
 
-env:
-  OPENAI_API_KEY: fake-api-key
-  PYTHONUNBUFFERED: 1
-  BRAVE_API_KEY: fake-brave-key
-  SNOWFLAKE_USER: fake-snowflake-user
-  SNOWFLAKE_PASSWORD: fake-snowflake-password
-  SNOWFLAKE_ACCOUNT: fake-snowflake-account
-  SNOWFLAKE_WAREHOUSE: fake-snowflake-warehouse
-  SNOWFLAKE_DATABASE: fake-snowflake-database
-  SNOWFLAKE_SCHEMA: fake-snowflake-schema
-  EMBEDCHAIN_DB_URI: sqlite:///test.db
-
 jobs:
   tests:
     name: tests (${{ matrix.python-version }})
@@ -84,26 +72,20 @@ jobs:
           # fi
 
           cd lib/crewai && uv run pytest \
-            --block-network \
-            --timeout=30 \
             -vv \
             --splits 8 \
             --group ${{ matrix.group }} \
             $DURATIONS_ARG \
             --durations=10 \
-            -n auto \
             --maxfail=3
 
       - name: Run tool tests (group ${{ matrix.group }} of 8)
         run: |
           cd lib/crewai-tools && uv run pytest \
-            --block-network \
-            --timeout=30 \
             -vv \
             --splits 8 \
             --group ${{ matrix.group }} \
             --durations=10 \
-            -n auto \
             --maxfail=3
 
 

conftest.py

@@ -0,0 +1,193 @@
+"""Pytest configuration for crewAI workspace."""
+
+from collections.abc import Generator
+import os
+from pathlib import Path
+import tempfile
+from typing import Any
+
+from dotenv import load_dotenv
+import pytest
+from vcr.request import Request  # type: ignore[import-untyped]
+
+
+env_test_path = Path(__file__).parent / ".env.test"
+load_dotenv(env_test_path, override=True)
+load_dotenv(override=True)
+
+
+@pytest.fixture(autouse=True, scope="function")
+def cleanup_event_handlers() -> Generator[None, Any, None]:
+    """Clean up event bus handlers after each test to prevent test pollution."""
+    yield
+
+    try:
+        from crewai.events.event_bus import crewai_event_bus
+
+        with crewai_event_bus._rwlock.w_locked():
+            crewai_event_bus._sync_handlers.clear()
+            crewai_event_bus._async_handlers.clear()
+    except Exception:  # noqa: S110
+        pass
+
+
+@pytest.fixture(autouse=True, scope="function")
+def setup_test_environment() -> Generator[None, Any, None]:
+    """Setup test environment for crewAI workspace."""
+    with tempfile.TemporaryDirectory() as temp_dir:
+        storage_dir = Path(temp_dir) / "crewai_test_storage"
+        storage_dir.mkdir(parents=True, exist_ok=True)
+
+        if not storage_dir.exists() or not storage_dir.is_dir():
+            raise RuntimeError(
+                f"Failed to create test storage directory: {storage_dir}"
+            )
+
+        try:
+            test_file = storage_dir / ".permissions_test"
+            test_file.touch()
+            test_file.unlink()
+        except (OSError, IOError) as e:
+            raise RuntimeError(
+                f"Test storage directory {storage_dir} is not writable: {e}"
+            ) from e
+
+        os.environ["CREWAI_STORAGE_DIR"] = str(storage_dir)
+        os.environ["CREWAI_TESTING"] = "true"
+
+        try:
+            yield
+        finally:
+            os.environ.pop("CREWAI_TESTING", "true")
+            os.environ.pop("CREWAI_STORAGE_DIR", None)
+            os.environ.pop("CREWAI_DISABLE_TELEMETRY", "true")
+            os.environ.pop("OTEL_SDK_DISABLED", "true")
+            os.environ.pop("OPENAI_BASE_URL", "https://api.openai.com/v1")
+            os.environ.pop("OPENAI_API_BASE", "https://api.openai.com/v1")
+
+
+HEADERS_TO_FILTER = {
+    "authorization": "AUTHORIZATION-XXX",
+    "content-security-policy": "CSP-FILTERED",
+    "cookie": "COOKIE-XXX",
+    "set-cookie": "SET-COOKIE-XXX",
+    "permissions-policy": "PERMISSIONS-POLICY-XXX",
+    "referrer-policy": "REFERRER-POLICY-XXX",
+    "strict-transport-security": "STS-XXX",
+    "x-content-type-options": "X-CONTENT-TYPE-XXX",
+    "x-frame-options": "X-FRAME-OPTIONS-XXX",
+    "x-permitted-cross-domain-policies": "X-PERMITTED-XXX",
+    "x-request-id": "X-REQUEST-ID-XXX",
+    "x-runtime": "X-RUNTIME-XXX",
+    "x-xss-protection": "X-XSS-PROTECTION-XXX",
+    "x-stainless-arch": "X-STAINLESS-ARCH-XXX",
+    "x-stainless-os": "X-STAINLESS-OS-XXX",
+    "x-stainless-read-timeout": "X-STAINLESS-READ-TIMEOUT-XXX",
+    "cf-ray": "CF-RAY-XXX",
+    "etag": "ETAG-XXX",
+    "Strict-Transport-Security": "STS-XXX",
+    "access-control-expose-headers": "ACCESS-CONTROL-XXX",
+    "openai-organization": "OPENAI-ORG-XXX",
+    "openai-project": "OPENAI-PROJECT-XXX",
+    "x-ratelimit-limit-requests": "X-RATELIMIT-LIMIT-REQUESTS-XXX",
+    "x-ratelimit-limit-tokens": "X-RATELIMIT-LIMIT-TOKENS-XXX",
+    "x-ratelimit-remaining-requests": "X-RATELIMIT-REMAINING-REQUESTS-XXX",
+    "x-ratelimit-remaining-tokens": "X-RATELIMIT-REMAINING-TOKENS-XXX",
+    "x-ratelimit-reset-requests": "X-RATELIMIT-RESET-REQUESTS-XXX",
+    "x-ratelimit-reset-tokens": "X-RATELIMIT-RESET-TOKENS-XXX",
+    "x-goog-api-key": "X-GOOG-API-KEY-XXX",
+    "api-key": "X-API-KEY-XXX",
+    "User-Agent": "X-USER-AGENT-XXX",
+    "apim-request-id:": "X-API-CLIENT-REQUEST-ID-XXX",
+    "azureml-model-session": "AZUREML-MODEL-SESSION-XXX",
+    "x-ms-client-request-id": "X-MS-CLIENT-REQUEST-ID-XXX",
+    "x-ms-region": "X-MS-REGION-XXX",
+    "apim-request-id": "APIM-REQUEST-ID-XXX",
+    "x-api-key": "X-API-KEY-XXX",
+    "anthropic-organization-id": "ANTHROPIC-ORGANIZATION-ID-XXX",
+    "request-id": "REQUEST-ID-XXX",
+    "anthropic-ratelimit-input-tokens-limit": "ANTHROPIC-RATELIMIT-INPUT-TOKENS-LIMIT-XXX",
+    "anthropic-ratelimit-input-tokens-remaining": "ANTHROPIC-RATELIMIT-INPUT-TOKENS-REMAINING-XXX",
+    "anthropic-ratelimit-input-tokens-reset": "ANTHROPIC-RATELIMIT-INPUT-TOKENS-RESET-XXX",
+    "anthropic-ratelimit-output-tokens-limit": "ANTHROPIC-RATELIMIT-OUTPUT-TOKENS-LIMIT-XXX",
+    "anthropic-ratelimit-output-tokens-remaining": "ANTHROPIC-RATELIMIT-OUTPUT-TOKENS-REMAINING-XXX",
+    "anthropic-ratelimit-output-tokens-reset": "ANTHROPIC-RATELIMIT-OUTPUT-TOKENS-RESET-XXX",
+    "anthropic-ratelimit-tokens-limit": "ANTHROPIC-RATELIMIT-TOKENS-LIMIT-XXX",
+    "anthropic-ratelimit-tokens-remaining": "ANTHROPIC-RATELIMIT-TOKENS-REMAINING-XXX",
+    "anthropic-ratelimit-tokens-reset": "ANTHROPIC-RATELIMIT-TOKENS-RESET-XXX",
+    "x-amz-date": "X-AMZ-DATE-XXX",
+    "amz-sdk-invocation-id": "AMZ-SDK-INVOCATION-ID-XXX",
+    "accept-encoding": "ACCEPT-ENCODING-XXX",
+    "x-amzn-requestid": "X-AMZN-REQUESTID-XXX",
+    "x-amzn-RequestId": "X-AMZN-REQUESTID-XXX",
+}
+
+
+def _filter_request_headers(request: Request) -> Request:  # type: ignore[no-any-unimported]
+    """Filter sensitive headers from request before recording."""
+    for header_name, replacement in HEADERS_TO_FILTER.items():
+        for variant in [header_name, header_name.upper(), header_name.title()]:
+            if variant in request.headers:
+                request.headers[variant] = [replacement]
+
+    request.method = request.method.upper()
+    return request
+
+
+def _filter_response_headers(response: dict[str, Any]) -> dict[str, Any]:
+    """Filter sensitive headers from response before recording."""
+    for header_name, replacement in HEADERS_TO_FILTER.items():
+        for variant in [header_name, header_name.upper(), header_name.title()]:
+            if variant in response["headers"]:
+                response["headers"][variant] = [replacement]
+    return response
+
+
+@pytest.fixture(scope="module")
+def vcr_cassette_dir(request: Any) -> str:
+    """Generate cassette directory path based on test module location.
+
+    Organizes cassettes to mirror test directory structure within each package:
+    lib/crewai/tests/llms/google/test_google.py -> lib/crewai/tests/cassettes/llms/google/
+    lib/crewai-tools/tests/tools/test_search.py -> lib/crewai-tools/tests/cassettes/tools/
+    """
+    test_file = Path(request.fspath)
+
+    for parent in test_file.parents:
+        if parent.name in ("crewai", "crewai-tools") and parent.parent.name == "lib":
+            package_root = parent
+            break
+    else:
+        package_root = test_file.parent
+
+    tests_root = package_root / "tests"
+    test_dir = test_file.parent
+
+    if test_dir != tests_root:
+        relative_path = test_dir.relative_to(tests_root)
+        cassette_dir = tests_root / "cassettes" / relative_path
+    else:
+        cassette_dir = tests_root / "cassettes"
+
+    cassette_dir.mkdir(parents=True, exist_ok=True)
+
+    return str(cassette_dir)
+
+
+@pytest.fixture(scope="module")
+def vcr_config(vcr_cassette_dir: str) -> dict[str, Any]:
+    """Configure VCR with organized cassette storage."""
+    config = {
+        "cassette_library_dir": vcr_cassette_dir,
+        "record_mode": os.getenv("PYTEST_VCR_RECORD_MODE", "once"),
+        "filter_headers": [(k, v) for k, v in HEADERS_TO_FILTER.items()],
+        "before_record_request": _filter_request_headers,
+        "before_record_response": _filter_response_headers,
+        "filter_query_parameters": ["key"],
+        "match_on": ["method", "scheme", "host", "port", "path"],
+    }
+
+    if os.getenv("GITHUB_ACTIONS") == "true":
+        config["record_mode"] = "none"
+
+    return config

docs/en/concepts/llms.mdx

@@ -1089,6 +1089,50 @@ CrewAI supports streaming responses from LLMs, allowing your application to rece
   </Tab>
 </Tabs>
 
+## Async LLM Calls
+
+CrewAI supports asynchronous LLM calls for improved performance and concurrency in your AI workflows. Async calls allow you to run multiple LLM requests concurrently without blocking, making them ideal for high-throughput applications and parallel agent operations.
+
+<Tabs>
+  <Tab title="Basic Usage">
+    Use the `acall` method for asynchronous LLM requests:
+
+    ```python
+    import asyncio
+    from crewai import LLM
+
+    async def main():
+        llm = LLM(model="openai/gpt-4o")
+
+        # Single async call
+        response = await llm.acall("What is the capital of France?")
+        print(response)
+
+    asyncio.run(main())
+    ```
+
+    The `acall` method supports all the same parameters as the synchronous `call` method, including messages, tools, and callbacks.
+  </Tab>
+
+  <Tab title="With Streaming">
+    Combine async calls with streaming for real-time concurrent responses:
+
+    ```python
+    import asyncio
+    from crewai import LLM
+
+    async def stream_async():
+        llm = LLM(model="openai/gpt-4o", stream=True)
+
+        response = await llm.acall("Write a short story about AI")
+
+        print(response)
+
+    asyncio.run(stream_async())
+    ```
+  </Tab>
+</Tabs>
+
 ## Structured LLM Calls
 
 CrewAI supports structured responses from LLM calls by allowing you to define a `response_format` using a Pydantic model. This enables the framework to automatically parse and validate the output, making it easier to integrate the response into your application without manual post-processing.

docs/en/learn/create-custom-tools.mdx

@@ -66,5 +66,55 @@ def my_cache_strategy(arguments: dict, result: str) -> bool:
 cached_tool.cache_function = my_cache_strategy
 ```
 
+### Creating Async Tools
+
+CrewAI supports async tools for non-blocking I/O operations. This is useful when your tool needs to make HTTP requests, database queries, or other I/O-bound operations.
+
+#### Using the `@tool` Decorator with Async Functions
+
+The simplest way to create an async tool is using the `@tool` decorator with an async function:
+
+```python Code
+import aiohttp
+from crewai.tools import tool
+
+@tool("Async Web Fetcher")
+async def fetch_webpage(url: str) -> str:
+    """Fetch content from a webpage asynchronously."""
+    async with aiohttp.ClientSession() as session:
+        async with session.get(url) as response:
+            return await response.text()
+```
+
+#### Subclassing `BaseTool` with Async Support
+
+For more control, subclass `BaseTool` and implement both `_run` (sync) and `_arun` (async) methods:
+
+```python Code
+import requests
+import aiohttp
+from crewai.tools import BaseTool
+from pydantic import BaseModel, Field
+
+class WebFetcherInput(BaseModel):
+    """Input schema for WebFetcher."""
+    url: str = Field(..., description="The URL to fetch")
+
+class WebFetcherTool(BaseTool):
+    name: str = "Web Fetcher"
+    description: str = "Fetches content from a URL"
+    args_schema: type[BaseModel] = WebFetcherInput
+
+    def _run(self, url: str) -> str:
+        """Synchronous implementation."""
+        return requests.get(url).text
+
+    async def _arun(self, url: str) -> str:
+        """Asynchronous implementation for non-blocking I/O."""
+        async with aiohttp.ClientSession() as session:
+            async with session.get(url) as response:
+                return await response.text()
+```
+
 By adhering to these guidelines and incorporating new functionalities and collaboration tools into your tool creation and management processes,
 you can leverage the full capabilities of the CrewAI framework, enhancing both the development experience and the efficiency of your AI agents.

docs/ko/learn/create-custom-tools.mdx

@@ -63,5 +63,55 @@ def my_cache_strategy(arguments: dict, result: str) -> bool:
 cached_tool.cache_function = my_cache_strategy
 ```
 
+### 비동기 도구 생성하기
+
+CrewAI는 논블로킹 I/O 작업을 위한 비동기 도구를 지원합니다. 이는 HTTP 요청, 데이터베이스 쿼리 또는 기타 I/O 바운드 작업이 필요한 경우에 유용합니다.
+
+#### `@tool` 데코레이터와 비동기 함수 사용하기
+
+비동기 도구를 만드는 가장 간단한 방법은 `@tool` 데코레이터와 async 함수를 사용하는 것입니다:
+
+```python Code
+import aiohttp
+from crewai.tools import tool
+
+@tool("Async Web Fetcher")
+async def fetch_webpage(url: str) -> str:
+    """Fetch content from a webpage asynchronously."""
+    async with aiohttp.ClientSession() as session:
+        async with session.get(url) as response:
+            return await response.text()
+```
+
+#### 비동기 지원으로 `BaseTool` 서브클래싱하기
+
+더 많은 제어를 위해 `BaseTool`을 상속하고 `_run`(동기) 및 `_arun`(비동기) 메서드를 모두 구현할 수 있습니다:
+
+```python Code
+import requests
+import aiohttp
+from crewai.tools import BaseTool
+from pydantic import BaseModel, Field
+
+class WebFetcherInput(BaseModel):
+    """Input schema for WebFetcher."""
+    url: str = Field(..., description="The URL to fetch")
+
+class WebFetcherTool(BaseTool):
+    name: str = "Web Fetcher"
+    description: str = "Fetches content from a URL"
+    args_schema: type[BaseModel] = WebFetcherInput
+
+    def _run(self, url: str) -> str:
+        """Synchronous implementation."""
+        return requests.get(url).text
+
+    async def _arun(self, url: str) -> str:
+        """Asynchronous implementation for non-blocking I/O."""
+        async with aiohttp.ClientSession() as session:
+            async with session.get(url) as response:
+                return await response.text()
+```
+
 이 가이드라인을 준수하고 새로운 기능과 협업 도구를 도구 생성 및 관리 프로세스에 통합함으로써,
-CrewAI 프레임워크의 모든 기능을 활용할 수 있으며, AI agent의 개발 경험과 효율성을 모두 높일 수 있습니다.
+CrewAI 프레임워크의 모든 기능을 활용할 수 있으며, AI agent의 개발 경험과 효율성을 모두 높일 수 있습니다.

docs/pt-BR/learn/create-custom-tools.mdx

@@ -66,5 +66,55 @@ def my_cache_strategy(arguments: dict, result: str) -> bool:
 cached_tool.cache_function = my_cache_strategy
 ```
 
+### Criando Ferramentas Assíncronas
+
+O CrewAI suporta ferramentas assíncronas para operações de I/O não bloqueantes. Isso é útil quando sua ferramenta precisa fazer requisições HTTP, consultas a banco de dados ou outras operações de I/O.
+
+#### Usando o Decorador `@tool` com Funções Assíncronas
+
+A maneira mais simples de criar uma ferramenta assíncrona é usando o decorador `@tool` com uma função async:
+
+```python Code
+import aiohttp
+from crewai.tools import tool
+
+@tool("Async Web Fetcher")
+async def fetch_webpage(url: str) -> str:
+    """Fetch content from a webpage asynchronously."""
+    async with aiohttp.ClientSession() as session:
+        async with session.get(url) as response:
+            return await response.text()
+```
+
+#### Subclassificando `BaseTool` com Suporte Assíncrono
+
+Para maior controle, herde de `BaseTool` e implemente os métodos `_run` (síncrono) e `_arun` (assíncrono):
+
+```python Code
+import requests
+import aiohttp
+from crewai.tools import BaseTool
+from pydantic import BaseModel, Field
+
+class WebFetcherInput(BaseModel):
+    """Input schema for WebFetcher."""
+    url: str = Field(..., description="The URL to fetch")
+
+class WebFetcherTool(BaseTool):
+    name: str = "Web Fetcher"
+    description: str = "Fetches content from a URL"
+    args_schema: type[BaseModel] = WebFetcherInput
+
+    def _run(self, url: str) -> str:
+        """Synchronous implementation."""
+        return requests.get(url).text
+
+    async def _arun(self, url: str) -> str:
+        """Asynchronous implementation for non-blocking I/O."""
+        async with aiohttp.ClientSession() as session:
+            async with session.get(url) as response:
+                return await response.text()
+```
+
 Seguindo essas orientações e incorporando novas funcionalidades e ferramentas de colaboração nos seus processos de criação e gerenciamento de ferramentas,
-você pode aproveitar ao máximo as capacidades do framework CrewAI, aprimorando tanto a experiência de desenvolvimento quanto a eficiência dos seus agentes de IA.
+você pode aproveitar ao máximo as capacidades do framework CrewAI, aprimorando tanto a experiência de desenvolvimento quanto a eficiência dos seus agentes de IA.

lib/crewai-tools/BUILDING_TOOLS.md

@@ -218,7 +218,7 @@ Update the root `README.md` only if the tool introduces a new category or notabl
 
 ## Discovery and specs
 
-Our internal tooling discovers classes whose names end with `Tool`. Keep your class exported from the module path under `crewai_tools/tools/...` to be picked up by scripts like `generate_tool_specs.py`.
+Our internal tooling discovers classes whose names end with `Tool`. Keep your class exported from the module path under `crewai_tools/tools/...` to be picked up by scripts like `crewai_tools.generate_tool_specs.py`.
 
 ---
 

lib/crewai-tools/pyproject.toml

@@ -8,17 +8,17 @@ authors = [
 ]
 requires-python = ">=3.10, <3.14"
 dependencies = [
-    "lancedb>=0.5.4",
-    "pytube>=15.0.0",
-    "requests>=2.32.5",
-    "docker>=7.1.0",
-    "crewai==1.6.0",
-    "lancedb>=0.5.4",
-    "tiktoken>=0.8.0",
-    "beautifulsoup4>=4.13.4",
-    "python-docx>=1.2.0",
-    "youtube-transcript-api>=1.2.2",
-    "pymupdf>=1.26.6",
+    "lancedb~=0.5.4",
+    "pytube~=15.0.0",
+    "requests~=2.32.5",
+    "docker~=7.1.0",
+    "crewai==1.6.1",
+    "lancedb~=0.5.4",
+    "tiktoken~=0.8.0",
+    "beautifulsoup4~=4.13.4",
+    "python-docx~=1.2.0",
+    "youtube-transcript-api~=1.2.2",
+    "pymupdf~=1.26.6",
 ]
 
 

lib/crewai-tools/src/crewai_tools/__init__.py

@@ -291,4 +291,4 @@ __all__ = [
     "ZapierActionTools",
 ]
 
-__version__ = "1.6.0"
+__version__ = "1.6.1"

lib/crewai-tools/src/crewai_tools/generate_tool_specs.py

@@ -4,17 +4,20 @@ from collections.abc import Mapping
 import inspect
 import json
 from pathlib import Path
-from typing import Any, cast
+from typing import Any
 
 from crewai.tools.base_tool import BaseTool, EnvVar
-from crewai_tools import tools
 from pydantic import BaseModel
 from pydantic.json_schema import GenerateJsonSchema
 from pydantic_core import PydanticOmit
 
+from crewai_tools import tools
+
 
 class SchemaGenerator(GenerateJsonSchema):
-    def handle_invalid_for_json_schema(self, schema, error_info):
+    def handle_invalid_for_json_schema(
+        self, schema: Any, error_info: Any
+    ) -> dict[str, Any]:
         raise PydanticOmit
 
 
@@ -73,7 +76,7 @@ class ToolSpecExtractor:
 
     @staticmethod
     def _extract_field_default(
-        field: dict | None, fallback: str | list[Any] = ""
+        field: dict[str, Any] | None, fallback: str | list[Any] = ""
     ) -> str | list[Any] | int:
         if not field:
             return fallback
@@ -83,7 +86,7 @@ class ToolSpecExtractor:
         return default if isinstance(default, (list, str, int)) else fallback
 
     @staticmethod
-    def _extract_params(args_schema_field: dict | None) -> dict[str, Any]:
+    def _extract_params(args_schema_field: dict[str, Any] | None) -> dict[str, Any]:
         if not args_schema_field:
             return {}
 
@@ -94,15 +97,15 @@ class ToolSpecExtractor:
         ):
             return {}
 
-        # Cast to type[BaseModel] after runtime check
-        schema_class = cast(type[BaseModel], args_schema_class)
         try:
-            return schema_class.model_json_schema(schema_generator=SchemaGenerator)
+            return args_schema_class.model_json_schema(schema_generator=SchemaGenerator)
         except Exception:
             return {}
 
     @staticmethod
-    def _extract_env_vars(env_vars_field: dict | None) -> list[dict[str, Any]]:
+    def _extract_env_vars(
+        env_vars_field: dict[str, Any] | None,
+    ) -> list[dict[str, Any]]:
         if not env_vars_field:
             return []
 

lib/crewai-tools/tests/it/tools/conftest.py

@@ -1,21 +0,0 @@
-import pytest
-
-
-def pytest_configure(config):
-    """Register custom markers."""
-    config.addinivalue_line("markers", "integration: mark test as an integration test")
-    config.addinivalue_line("markers", "asyncio: mark test as an async test")
-
-    # Set the asyncio loop scope through ini configuration
-    config.inicfg["asyncio_mode"] = "auto"
-
-
-@pytest.fixture(scope="function")
-def event_loop():
-    """Create an instance of the default event loop for each test case."""
-    import asyncio
-
-    loop = asyncio.new_event_loop()
-    asyncio.set_event_loop(loop)
-    yield loop
-    loop.close()

lib/crewai-tools/tests/test_generate_tool_specs.py

@@ -2,7 +2,7 @@ import json
 from unittest import mock
 
 from crewai.tools.base_tool import BaseTool, EnvVar
-from generate_tool_specs import ToolSpecExtractor
+from crewai_tools.generate_tool_specs import ToolSpecExtractor
 from pydantic import BaseModel, Field
 import pytest
 
@@ -61,8 +61,8 @@ def test_unwrap_schema(extractor):
 @pytest.fixture
 def mock_tool_extractor(extractor):
     with (
-        mock.patch("generate_tool_specs.dir", return_value=["MockTool"]),
-        mock.patch("generate_tool_specs.getattr", return_value=MockTool),
+        mock.patch("crewai_tools.generate_tool_specs.dir", return_value=["MockTool"]),
+        mock.patch("crewai_tools.generate_tool_specs.getattr", return_value=MockTool),
     ):
         extractor.extract_all_tools()
         assert len(extractor.tools_spec) == 1

lib/crewai-tools/tests/tools/firecrawl_crawl_website_tool_test.py

@@ -4,7 +4,7 @@ from crewai_tools.tools.firecrawl_crawl_website_tool.firecrawl_crawl_website_too
     FirecrawlCrawlWebsiteTool,
 )
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_firecrawl_crawl_tool_integration():
     tool = FirecrawlCrawlWebsiteTool(config={
         "limit": 2,

lib/crewai-tools/tests/tools/firecrawl_scrape_website_tool_test.py

@@ -4,7 +4,7 @@ from crewai_tools.tools.firecrawl_scrape_website_tool.firecrawl_scrape_website_t
     FirecrawlScrapeWebsiteTool,
 )
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_firecrawl_scrape_tool_integration():
     tool = FirecrawlScrapeWebsiteTool()
     result = tool.run(url="https://firecrawl.dev")

lib/crewai-tools/tests/tools/firecrawl_search_tool_test.py

@@ -3,7 +3,7 @@ import pytest
 from crewai_tools.tools.firecrawl_search_tool.firecrawl_search_tool import FirecrawlSearchTool
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_firecrawl_search_tool_integration():
     tool = FirecrawlSearchTool()
     result = tool.run(query="firecrawl")

lib/crewai-tools/tests/tools/test_search_tools.py

@@ -23,15 +23,13 @@ from crewai_tools.tools.rag.rag_tool import Adapter
 import pytest
 
 
-pytestmark = [pytest.mark.vcr(filter_headers=["authorization"])]
-
-
 @pytest.fixture
 def mock_adapter():
     mock_adapter = MagicMock(spec=Adapter)
     return mock_adapter
 
 
+@pytest.mark.vcr()
 def test_directory_search_tool():
     with tempfile.TemporaryDirectory() as temp_dir:
         test_file = Path(temp_dir) / "test.txt"
@@ -65,6 +63,7 @@ def test_pdf_search_tool(mock_adapter):
     )
 
 
+@pytest.mark.vcr()
 def test_txt_search_tool():
     with tempfile.NamedTemporaryFile(suffix=".txt", delete=False) as temp_file:
         temp_file.write(b"This is a test file for txt search")
@@ -102,6 +101,7 @@ def test_docx_search_tool(mock_adapter):
     )
 
 
+@pytest.mark.vcr()
 def test_json_search_tool():
     with tempfile.NamedTemporaryFile(suffix=".json", delete=False) as temp_file:
         temp_file.write(b'{"test": "This is a test JSON file"}')
@@ -127,6 +127,7 @@ def test_xml_search_tool(mock_adapter):
     )
 
 
+@pytest.mark.vcr()
 def test_csv_search_tool():
     with tempfile.NamedTemporaryFile(suffix=".csv", delete=False) as temp_file:
         temp_file.write(b"name,description\ntest,This is a test CSV file")
@@ -141,6 +142,7 @@ def test_csv_search_tool():
         os.unlink(temp_file_path)
 
 
+@pytest.mark.vcr()
 def test_mdx_search_tool():
     with tempfile.NamedTemporaryFile(suffix=".mdx", delete=False) as temp_file:
         temp_file.write(b"# Test MDX\nThis is a test MDX file")

lib/crewai/pyproject.toml

@@ -9,35 +9,36 @@ authors = [
 requires-python = ">=3.10, <3.14"
 dependencies = [
     # Core Dependencies
-    "pydantic>=2.11.9",
-    "openai>=1.13.3",
+    "pydantic~=2.11.9",
+    "openai~=1.83.0",
     "instructor>=1.3.3",
     # Text Processing
-    "pdfplumber>=0.11.4",
-    "regex>=2024.9.11",
+    "pdfplumber~=0.11.4",
+    "regex~=2024.9.11",
     # Telemetry and Monitoring
-    "opentelemetry-api>=1.30.0",
-    "opentelemetry-sdk>=1.30.0",
-    "opentelemetry-exporter-otlp-proto-http>=1.30.0",
+    "opentelemetry-api~=1.34.0",
+    "opentelemetry-sdk~=1.34.0",
+    "opentelemetry-exporter-otlp-proto-http~=1.34.0",
     # Data Handling
     "chromadb~=1.1.0",
-    "tokenizers>=0.20.3",
-    "openpyxl>=3.1.5",
+    "tokenizers~=0.20.3",
+    "openpyxl~=3.1.5",
     # Authentication and Security
-    "python-dotenv>=1.1.1",
-    "pyjwt>=2.9.0",
+    "python-dotenv~=1.1.1",
+    "pyjwt~=2.9.0",
     # Configuration and Utils
-    "click>=8.1.7",
-    "appdirs>=1.4.4",
-    "jsonref>=1.1.0",
-    "json-repair==0.25.2",
-    "uv>=0.4.25",
-    "tomli-w>=1.1.0",
-    "tomli>=2.0.2",
-    "json5>=0.10.0",
-    "portalocker==2.7.0",
-    "pydantic-settings>=2.10.1",
-    "mcp>=1.16.0",
+    "click~=8.1.7",
+    "appdirs~=1.4.4",
+    "jsonref~=1.1.0",
+    "json-repair~=0.25.2",
+    "tomli-w~=1.1.0",
+    "tomli~=2.0.2",
+    "json5~=0.10.0",
+    "portalocker~=2.7.0",
+    "pydantic-settings~=2.10.1",
+    "mcp~=1.16.0",
+    "uv~=0.9.13",
+    "aiosqlite~=0.21.0",
 ]
 
 [project.urls]
@@ -48,55 +49,53 @@ Repository = "https://github.com/crewAIInc/crewAI"
 
 [project.optional-dependencies]
 tools = [
-    "crewai-tools==1.6.0",
+    "crewai-tools==1.6.1",
 ]
 embeddings = [
     "tiktoken~=0.8.0"
 ]
-pdfplumber = [
-    "pdfplumber>=0.11.4",
-]
 pandas = [
-    "pandas>=2.2.3",
+    "pandas~=2.2.3",
 ]
 openpyxl = [
-    "openpyxl>=3.1.5",
+    "openpyxl~=3.1.5",
 ]
-mem0 = ["mem0ai>=0.1.94"]
+mem0 = ["mem0ai~=0.1.94"]
 docling = [
-    "docling>=2.12.0",
+    "docling~=2.63.0",
 ]
 qdrant = [
-    "qdrant-client[fastembed]>=1.14.3",
+    "qdrant-client[fastembed]~=1.14.3",
 ]
 aws = [
-    "boto3>=1.40.38",
+    "boto3~=1.40.38",
+    "aiobotocore~=2.25.2",
 ]
 watson = [
-    "ibm-watsonx-ai>=1.3.39",
+    "ibm-watsonx-ai~=1.3.39",
 ]
 voyageai = [
-    "voyageai>=0.3.5",
+    "voyageai~=0.3.5",
 ]
 litellm = [
-    "litellm>=1.74.9",
+    "litellm~=1.74.9",
 ]
 bedrock = [
-    "boto3>=1.40.45",
+    "boto3~=1.40.45",
 ]
 google-genai = [
-    "google-genai>=1.2.0",
+    "google-genai~=1.2.0",
 ]
 azure-ai-inference = [
-    "azure-ai-inference>=1.0.0b9",
+    "azure-ai-inference~=1.0.0b9",
 ]
 anthropic = [
-    "anthropic>=0.69.0",
+    "anthropic~=0.71.0",
 ]
- a2a = [
+a2a = [
      "a2a-sdk~=0.3.10",
-     "httpx-auth>=0.23.1",
-     "httpx-sse>=0.4.0",
+     "httpx-auth~=0.23.1",
+     "httpx-sse~=0.4.0",
 ]
 
 

lib/crewai/src/crewai/__init__.py

@@ -40,7 +40,7 @@ def _suppress_pydantic_deprecation_warnings() -> None:
 
 _suppress_pydantic_deprecation_warnings()
 
-__version__ = "1.6.0"
+__version__ = "1.6.1"
 _telemetry_submitted = False
 
 

lib/crewai/src/crewai/agent/core.py

@@ -2,7 +2,6 @@ from __future__ import annotations
 
 import asyncio
 from collections.abc import Sequence
-import json
 import shutil
 import subprocess
 import time
@@ -19,6 +18,19 @@ from pydantic import BaseModel, Field, InstanceOf, PrivateAttr, model_validator
 from typing_extensions import Self
 
 from crewai.a2a.config import A2AConfig
+from crewai.agent.utils import (
+    ahandle_knowledge_retrieval,
+    apply_training_data,
+    build_task_prompt_with_schema,
+    format_task_with_context,
+    get_knowledge_config,
+    handle_knowledge_retrieval,
+    handle_reasoning,
+    prepare_tools,
+    process_tool_results,
+    save_last_messages,
+    validate_max_execution_time,
+)
 from crewai.agents.agent_builder.base_agent import BaseAgent
 from crewai.agents.cache.cache_handler import CacheHandler
 from crewai.agents.crew_agent_executor import CrewAgentExecutor
@@ -27,9 +39,6 @@ from crewai.events.types.knowledge_events import (
     KnowledgeQueryCompletedEvent,
     KnowledgeQueryFailedEvent,
     KnowledgeQueryStartedEvent,
-    KnowledgeRetrievalCompletedEvent,
-    KnowledgeRetrievalStartedEvent,
-    KnowledgeSearchQueryFailedEvent,
 )
 from crewai.events.types.memory_events import (
     MemoryRetrievalCompletedEvent,
@@ -37,7 +46,6 @@ from crewai.events.types.memory_events import (
 )
 from crewai.knowledge.knowledge import Knowledge
 from crewai.knowledge.source.base_knowledge_source import BaseKnowledgeSource
-from crewai.knowledge.utils.knowledge_utils import extract_knowledge_context
 from crewai.lite_agent import LiteAgent
 from crewai.llms.base_llm import BaseLLM
 from crewai.mcp import (
@@ -61,7 +69,7 @@ from crewai.utilities.agent_utils import (
     render_text_description_and_args,
 )
 from crewai.utilities.constants import TRAINED_AGENTS_DATA_FILE, TRAINING_DATA_FILE
-from crewai.utilities.converter import Converter, generate_model_description
+from crewai.utilities.converter import Converter
 from crewai.utilities.guardrail_types import GuardrailType
 from crewai.utilities.llm_utils import create_llm
 from crewai.utilities.prompts import Prompts
@@ -295,53 +303,15 @@ class Agent(BaseAgent):
             ValueError: If the max execution time is not a positive integer.
             RuntimeError: If the agent execution fails for other reasons.
         """
-        if self.reasoning:
-            try:
-                from crewai.utilities.reasoning_handler import (
-                    AgentReasoning,
-                    AgentReasoningOutput,
-                )
-
-                reasoning_handler = AgentReasoning(task=task, agent=self)
-                reasoning_output: AgentReasoningOutput = (
-                    reasoning_handler.handle_agent_reasoning()
-                )
-
-                # Add the reasoning plan to the task description
-                task.description += f"\n\nReasoning Plan:\n{reasoning_output.plan.plan}"
-            except Exception as e:
-                self._logger.log("error", f"Error during reasoning process: {e!s}")
+        handle_reasoning(self, task)
         self._inject_date_to_task(task)
 
         if self.tools_handler:
             self.tools_handler.last_used_tool = None
 
         task_prompt = task.prompt()
-
-        # If the task requires output in JSON or Pydantic format,
-        # append specific instructions to the task prompt to ensure
-        # that the final answer does not include any code block markers
-        # Skip this if task.response_model is set, as native structured outputs handle schema automatically
-        if (task.output_json or task.output_pydantic) and not task.response_model:
-            # Generate the schema based on the output format
-            if task.output_json:
-                schema_dict = generate_model_description(task.output_json)
-                schema = json.dumps(schema_dict["json_schema"]["schema"], indent=2)
-                task_prompt += "\n" + self.i18n.slice(
-                    "formatted_task_instructions"
-                ).format(output_format=schema)
-
-            elif task.output_pydantic:
-                schema_dict = generate_model_description(task.output_pydantic)
-                schema = json.dumps(schema_dict["json_schema"]["schema"], indent=2)
-                task_prompt += "\n" + self.i18n.slice(
-                    "formatted_task_instructions"
-                ).format(output_format=schema)
-
-        if context:
-            task_prompt = self.i18n.slice("task_with_context").format(
-                task=task_prompt, context=context
-            )
+        task_prompt = build_task_prompt_with_schema(task, task_prompt, self.i18n)
+        task_prompt = format_task_with_context(task_prompt, context, self.i18n)
 
         if self._is_any_available_memory():
             crewai_event_bus.emit(
@@ -379,84 +349,20 @@ class Agent(BaseAgent):
                     from_task=task,
                 ),
             )
-        knowledge_config = (
-            self.knowledge_config.model_dump() if self.knowledge_config else {}
+
+        knowledge_config = get_knowledge_config(self)
+        task_prompt = handle_knowledge_retrieval(
+            self,
+            task,
+            task_prompt,
+            knowledge_config,
+            self.knowledge.query if self.knowledge else lambda *a, **k: None,
+            self.crew.query_knowledge if self.crew else lambda *a, **k: None,
         )
 
-        if self.knowledge or (self.crew and self.crew.knowledge):
-            crewai_event_bus.emit(
-                self,
-                event=KnowledgeRetrievalStartedEvent(
-                    from_task=task,
-                    from_agent=self,
-                ),
-            )
-            try:
-                self.knowledge_search_query = self._get_knowledge_search_query(
-                    task_prompt, task
-                )
-                if self.knowledge_search_query:
-                    # Quering agent specific knowledge
-                    if self.knowledge:
-                        agent_knowledge_snippets = self.knowledge.query(
-                            [self.knowledge_search_query], **knowledge_config
-                        )
-                        if agent_knowledge_snippets:
-                            self.agent_knowledge_context = extract_knowledge_context(
-                                agent_knowledge_snippets
-                            )
-                            if self.agent_knowledge_context:
-                                task_prompt += self.agent_knowledge_context
+        prepare_tools(self, tools, task)
+        task_prompt = apply_training_data(self, task_prompt)
 
-                    # Quering crew specific knowledge
-                    knowledge_snippets = self.crew.query_knowledge(
-                        [self.knowledge_search_query], **knowledge_config
-                    )
-                    if knowledge_snippets:
-                        self.crew_knowledge_context = extract_knowledge_context(
-                            knowledge_snippets
-                        )
-                        if self.crew_knowledge_context:
-                            task_prompt += self.crew_knowledge_context
-
-                    crewai_event_bus.emit(
-                        self,
-                        event=KnowledgeRetrievalCompletedEvent(
-                            query=self.knowledge_search_query,
-                            from_task=task,
-                            from_agent=self,
-                            retrieved_knowledge=(
-                                (self.agent_knowledge_context or "")
-                                + (
-                                    "\n"
-                                    if self.agent_knowledge_context
-                                    and self.crew_knowledge_context
-                                    else ""
-                                )
-                                + (self.crew_knowledge_context or "")
-                            ),
-                        ),
-                    )
-            except Exception as e:
-                crewai_event_bus.emit(
-                    self,
-                    event=KnowledgeSearchQueryFailedEvent(
-                        query=self.knowledge_search_query or "",
-                        error=str(e),
-                        from_task=task,
-                        from_agent=self,
-                    ),
-                )
-
-        tools = tools or self.tools or []
-        self.create_agent_executor(tools=tools, task=task)
-
-        if self.crew and self.crew._train:
-            task_prompt = self._training_handler(task_prompt=task_prompt)
-        else:
-            task_prompt = self._use_trained_data(task_prompt=task_prompt)
-
-        # Import agent events locally to avoid circular imports
         from crewai.events.types.agent_events import (
             AgentExecutionCompletedEvent,
             AgentExecutionErrorEvent,
@@ -474,15 +380,8 @@ class Agent(BaseAgent):
                 ),
             )
 
-            # Determine execution method based on timeout setting
+            validate_max_execution_time(self.max_execution_time)
             if self.max_execution_time is not None:
-                if (
-                    not isinstance(self.max_execution_time, int)
-                    or self.max_execution_time <= 0
-                ):
-                    raise ValueError(
-                        "Max Execution time must be a positive integer greater than zero"
-                    )
                 result = self._execute_with_timeout(
                     task_prompt, task, self.max_execution_time
                 )
@@ -490,7 +389,6 @@ class Agent(BaseAgent):
                 result = self._execute_without_timeout(task_prompt, task)
 
         except TimeoutError as e:
-            # Propagate TimeoutError without retry
             crewai_event_bus.emit(
                 self,
                 event=AgentExecutionErrorEvent(
@@ -502,7 +400,6 @@ class Agent(BaseAgent):
             raise e
         except Exception as e:
             if e.__class__.__module__.startswith("litellm"):
-                # Do not retry on litellm errors
                 crewai_event_bus.emit(
                     self,
                     event=AgentExecutionErrorEvent(
@@ -528,23 +425,13 @@ class Agent(BaseAgent):
         if self.max_rpm and self._rpm_controller:
             self._rpm_controller.stop_rpm_counter()
 
-        # If there was any tool in self.tools_results that had result_as_answer
-        # set to True, return the results of the last tool that had
-        # result_as_answer set to True
-        for tool_result in self.tools_results:
-            if tool_result.get("result_as_answer", False):
-                result = tool_result["result"]
+        result = process_tool_results(self, result)
         crewai_event_bus.emit(
             self,
             event=AgentExecutionCompletedEvent(agent=self, task=task, output=result),
         )
 
-        self._last_messages = (
-            self.agent_executor.messages.copy()
-            if self.agent_executor and hasattr(self.agent_executor, "messages")
-            else []
-        )
-
+        save_last_messages(self)
         self._cleanup_mcp_clients()
 
         return result
@@ -604,6 +491,208 @@ class Agent(BaseAgent):
             }
         )["output"]
 
+    async def aexecute_task(
+        self,
+        task: Task,
+        context: str | None = None,
+        tools: list[BaseTool] | None = None,
+    ) -> Any:
+        """Execute a task with the agent asynchronously.
+
+        Args:
+            task: Task to execute.
+            context: Context to execute the task in.
+            tools: Tools to use for the task.
+
+        Returns:
+            Output of the agent.
+
+        Raises:
+            TimeoutError: If execution exceeds the maximum execution time.
+            ValueError: If the max execution time is not a positive integer.
+            RuntimeError: If the agent execution fails for other reasons.
+        """
+        handle_reasoning(self, task)
+        self._inject_date_to_task(task)
+
+        if self.tools_handler:
+            self.tools_handler.last_used_tool = None
+
+        task_prompt = task.prompt()
+        task_prompt = build_task_prompt_with_schema(task, task_prompt, self.i18n)
+        task_prompt = format_task_with_context(task_prompt, context, self.i18n)
+
+        if self._is_any_available_memory():
+            crewai_event_bus.emit(
+                self,
+                event=MemoryRetrievalStartedEvent(
+                    task_id=str(task.id) if task else None,
+                    source_type="agent",
+                    from_agent=self,
+                    from_task=task,
+                ),
+            )
+
+            start_time = time.time()
+
+            contextual_memory = ContextualMemory(
+                self.crew._short_term_memory,
+                self.crew._long_term_memory,
+                self.crew._entity_memory,
+                self.crew._external_memory,
+                agent=self,
+                task=task,
+            )
+            memory = await contextual_memory.abuild_context_for_task(
+                task, context or ""
+            )
+            if memory.strip() != "":
+                task_prompt += self.i18n.slice("memory").format(memory=memory)
+
+            crewai_event_bus.emit(
+                self,
+                event=MemoryRetrievalCompletedEvent(
+                    task_id=str(task.id) if task else None,
+                    memory_content=memory,
+                    retrieval_time_ms=(time.time() - start_time) * 1000,
+                    source_type="agent",
+                    from_agent=self,
+                    from_task=task,
+                ),
+            )
+
+        knowledge_config = get_knowledge_config(self)
+        task_prompt = await ahandle_knowledge_retrieval(
+            self, task, task_prompt, knowledge_config
+        )
+
+        prepare_tools(self, tools, task)
+        task_prompt = apply_training_data(self, task_prompt)
+
+        from crewai.events.types.agent_events import (
+            AgentExecutionCompletedEvent,
+            AgentExecutionErrorEvent,
+            AgentExecutionStartedEvent,
+        )
+
+        try:
+            crewai_event_bus.emit(
+                self,
+                event=AgentExecutionStartedEvent(
+                    agent=self,
+                    tools=self.tools,
+                    task_prompt=task_prompt,
+                    task=task,
+                ),
+            )
+
+            validate_max_execution_time(self.max_execution_time)
+            if self.max_execution_time is not None:
+                result = await self._aexecute_with_timeout(
+                    task_prompt, task, self.max_execution_time
+                )
+            else:
+                result = await self._aexecute_without_timeout(task_prompt, task)
+
+        except TimeoutError as e:
+            crewai_event_bus.emit(
+                self,
+                event=AgentExecutionErrorEvent(
+                    agent=self,
+                    task=task,
+                    error=str(e),
+                ),
+            )
+            raise e
+        except Exception as e:
+            if e.__class__.__module__.startswith("litellm"):
+                crewai_event_bus.emit(
+                    self,
+                    event=AgentExecutionErrorEvent(
+                        agent=self,
+                        task=task,
+                        error=str(e),
+                    ),
+                )
+                raise e
+            self._times_executed += 1
+            if self._times_executed > self.max_retry_limit:
+                crewai_event_bus.emit(
+                    self,
+                    event=AgentExecutionErrorEvent(
+                        agent=self,
+                        task=task,
+                        error=str(e),
+                    ),
+                )
+                raise e
+            result = await self.aexecute_task(task, context, tools)
+
+        if self.max_rpm and self._rpm_controller:
+            self._rpm_controller.stop_rpm_counter()
+
+        result = process_tool_results(self, result)
+        crewai_event_bus.emit(
+            self,
+            event=AgentExecutionCompletedEvent(agent=self, task=task, output=result),
+        )
+
+        save_last_messages(self)
+        self._cleanup_mcp_clients()
+
+        return result
+
+    async def _aexecute_with_timeout(
+        self, task_prompt: str, task: Task, timeout: int
+    ) -> Any:
+        """Execute a task with a timeout asynchronously.
+
+        Args:
+            task_prompt: The prompt to send to the agent.
+            task: The task being executed.
+            timeout: Maximum execution time in seconds.
+
+        Returns:
+            The output of the agent.
+
+        Raises:
+            TimeoutError: If execution exceeds the timeout.
+            RuntimeError: If execution fails for other reasons.
+        """
+        try:
+            return await asyncio.wait_for(
+                self._aexecute_without_timeout(task_prompt, task),
+                timeout=timeout,
+            )
+        except asyncio.TimeoutError as e:
+            raise TimeoutError(
+                f"Task '{task.description}' execution timed out after {timeout} seconds. "
+                "Consider increasing max_execution_time or optimizing the task."
+            ) from e
+
+    async def _aexecute_without_timeout(self, task_prompt: str, task: Task) -> Any:
+        """Execute a task without a timeout asynchronously.
+
+        Args:
+            task_prompt: The prompt to send to the agent.
+            task: The task being executed.
+
+        Returns:
+            The output of the agent.
+        """
+        if not self.agent_executor:
+            raise RuntimeError("Agent executor is not initialized.")
+
+        result = await self.agent_executor.ainvoke(
+            {
+                "input": task_prompt,
+                "tool_names": self.agent_executor.tools_names,
+                "tools": self.agent_executor.tools_description,
+                "ask_for_human_input": task.human_input,
+            }
+        )
+        return result["output"]
+
     def create_agent_executor(
         self, tools: list[BaseTool] | None = None, task: Task | None = None
     ) -> None:
@@ -633,7 +722,7 @@ class Agent(BaseAgent):
             )
 
         self.agent_executor = CrewAgentExecutor(
-            llm=self.llm,
+            llm=self.llm,  # type: ignore[arg-type]
             task=task,  # type: ignore[arg-type]
             agent=self,
             crew=self.crew,
@@ -810,6 +899,7 @@ class Agent(BaseAgent):
         from crewai.tools.base_tool import BaseTool
         from crewai.tools.mcp_native_tool import MCPNativeTool
 
+        transport: StdioTransport | HTTPTransport | SSETransport
         if isinstance(mcp_config, MCPServerStdio):
             transport = StdioTransport(
                 command=mcp_config.command,
@@ -903,10 +993,10 @@ class Agent(BaseAgent):
                                 server_name=server_name,
                                 run_context=None,
                             )
-                            if mcp_config.tool_filter(context, tool):
+                            if mcp_config.tool_filter(context, tool):  # type: ignore[call-arg, arg-type]
                                 filtered_tools.append(tool)
                         except (TypeError, AttributeError):
-                            if mcp_config.tool_filter(tool):
+                            if mcp_config.tool_filter(tool):  # type: ignore[call-arg, arg-type]
                                 filtered_tools.append(tool)
                     else:
                         # Not callable - include tool
@@ -981,7 +1071,9 @@ class Agent(BaseAgent):
         path = parsed.path.replace("/", "_").strip("_")
         return f"{domain}_{path}" if path else domain
 
-    def _get_mcp_tool_schemas(self, server_params: dict) -> dict[str, dict]:
+    def _get_mcp_tool_schemas(
+        self, server_params: dict[str, Any]
+    ) -> dict[str, dict[str, Any]]:
         """Get tool schemas from MCP server for wrapper creation with caching."""
         server_url = server_params["url"]
 
@@ -995,7 +1087,7 @@ class Agent(BaseAgent):
                 self._logger.log(
                     "debug", f"Using cached MCP tool schemas for {server_url}"
                 )
-                return cached_data
+                return cached_data  # type: ignore[no-any-return]
 
         try:
             schemas = asyncio.run(self._get_mcp_tool_schemas_async(server_params))
@@ -1013,7 +1105,7 @@ class Agent(BaseAgent):
 
     async def _get_mcp_tool_schemas_async(
         self, server_params: dict[str, Any]
-    ) -> dict[str, dict]:
+    ) -> dict[str, dict[str, Any]]:
         """Async implementation of MCP tool schema retrieval with timeouts and retries."""
         server_url = server_params["url"]
         return await self._retry_mcp_discovery(
@@ -1021,7 +1113,7 @@ class Agent(BaseAgent):
         )
 
     async def _retry_mcp_discovery(
-        self, operation_func, server_url: str
+        self, operation_func: Any, server_url: str
     ) -> dict[str, dict[str, Any]]:
         """Retry MCP discovery operation with exponential backoff, avoiding try-except in loop."""
         last_error = None
@@ -1052,7 +1144,7 @@ class Agent(BaseAgent):
 
     @staticmethod
     async def _attempt_mcp_discovery(
-        operation_func, server_url: str
+        operation_func: Any, server_url: str
     ) -> tuple[dict[str, dict[str, Any]] | None, str, bool]:
         """Attempt single MCP discovery operation and return (result, error_message, should_retry)."""
         try:
@@ -1142,7 +1234,7 @@ class Agent(BaseAgent):
         properties = json_schema.get("properties", {})
         required_fields = json_schema.get("required", [])
 
-        field_definitions = {}
+        field_definitions: dict[str, Any] = {}
 
         for field_name, field_schema in properties.items():
             field_type = self._json_type_to_python(field_schema)
@@ -1162,7 +1254,7 @@ class Agent(BaseAgent):
                 )
 
         model_name = f"{tool_name.replace('-', '_').replace(' ', '_')}Schema"
-        return create_model(model_name, **field_definitions)
+        return create_model(model_name, **field_definitions)  # type: ignore[no-any-return]
 
     def _json_type_to_python(self, field_schema: dict[str, Any]) -> type:
         """Convert JSON Schema type to Python type.
@@ -1177,7 +1269,7 @@ class Agent(BaseAgent):
         json_type = field_schema.get("type")
 
         if "anyOf" in field_schema:
-            types = []
+            types: list[type] = []
             for option in field_schema["anyOf"]:
                 if "const" in option:
                     types.append(str)
@@ -1185,13 +1277,13 @@ class Agent(BaseAgent):
                     types.append(self._json_type_to_python(option))
             unique_types = list(set(types))
             if len(unique_types) > 1:
-                result = unique_types[0]
+                result: Any = unique_types[0]
                 for t in unique_types[1:]:
                     result = result | t
-                return result
+                return result  # type: ignore[no-any-return]
             return unique_types[0]
 
-        type_mapping = {
+        type_mapping: dict[str | None, type] = {
             "string": str,
             "number": float,
             "integer": int,
@@ -1203,7 +1295,7 @@ class Agent(BaseAgent):
         return type_mapping.get(json_type, Any)
 
     @staticmethod
-    def _fetch_amp_mcp_servers(mcp_name: str) -> list[dict]:
+    def _fetch_amp_mcp_servers(mcp_name: str) -> list[dict[str, Any]]:
         """Fetch MCP server configurations from CrewAI AOP API."""
         # TODO: Implement AMP API call to "integrations/mcps" endpoint
         # Should return list of server configs with URLs
@@ -1438,11 +1530,11 @@ class Agent(BaseAgent):
         """
         if self.apps:
             platform_tools = self.get_platform_tools(self.apps)
-            if platform_tools:
+            if platform_tools and self.tools is not None:
                 self.tools.extend(platform_tools)
         if self.mcps:
             mcps = self.get_mcp_tools(self.mcps)
-            if mcps:
+            if mcps and self.tools is not None:
                 self.tools.extend(mcps)
 
         lite_agent = LiteAgent(

lib/crewai/src/crewai/agent/utils.py

@@ -0,0 +1,355 @@
+"""Utility functions for agent task execution.
+
+This module contains shared logic extracted from the Agent's execute_task
+and aexecute_task methods to reduce code duplication.
+"""
+
+from __future__ import annotations
+
+import json
+from typing import TYPE_CHECKING, Any
+
+from crewai.events.event_bus import crewai_event_bus
+from crewai.events.types.knowledge_events import (
+    KnowledgeRetrievalCompletedEvent,
+    KnowledgeRetrievalStartedEvent,
+    KnowledgeSearchQueryFailedEvent,
+)
+from crewai.knowledge.utils.knowledge_utils import extract_knowledge_context
+from crewai.utilities.converter import generate_model_description
+
+
+if TYPE_CHECKING:
+    from crewai.agent.core import Agent
+    from crewai.task import Task
+    from crewai.tools.base_tool import BaseTool
+    from crewai.utilities.i18n import I18N
+
+
+def handle_reasoning(agent: Agent, task: Task) -> None:
+    """Handle the reasoning process for an agent before task execution.
+
+    Args:
+        agent: The agent performing the task.
+        task: The task to execute.
+    """
+    if not agent.reasoning:
+        return
+
+    try:
+        from crewai.utilities.reasoning_handler import (
+            AgentReasoning,
+            AgentReasoningOutput,
+        )
+
+        reasoning_handler = AgentReasoning(task=task, agent=agent)
+        reasoning_output: AgentReasoningOutput = (
+            reasoning_handler.handle_agent_reasoning()
+        )
+        task.description += f"\n\nReasoning Plan:\n{reasoning_output.plan.plan}"
+    except Exception as e:
+        agent._logger.log("error", f"Error during reasoning process: {e!s}")
+
+
+def build_task_prompt_with_schema(task: Task, task_prompt: str, i18n: I18N) -> str:
+    """Build task prompt with JSON/Pydantic schema instructions if applicable.
+
+    Args:
+        task: The task being executed.
+        task_prompt: The initial task prompt.
+        i18n: Internationalization instance.
+
+    Returns:
+        The task prompt potentially augmented with schema instructions.
+    """
+    if (task.output_json or task.output_pydantic) and not task.response_model:
+        if task.output_json:
+            schema_dict = generate_model_description(task.output_json)
+            schema = json.dumps(schema_dict["json_schema"]["schema"], indent=2)
+            task_prompt += "\n" + i18n.slice("formatted_task_instructions").format(
+                output_format=schema
+            )
+        elif task.output_pydantic:
+            schema_dict = generate_model_description(task.output_pydantic)
+            schema = json.dumps(schema_dict["json_schema"]["schema"], indent=2)
+            task_prompt += "\n" + i18n.slice("formatted_task_instructions").format(
+                output_format=schema
+            )
+    return task_prompt
+
+
+def format_task_with_context(task_prompt: str, context: str | None, i18n: I18N) -> str:
+    """Format task prompt with context if provided.
+
+    Args:
+        task_prompt: The task prompt.
+        context: Optional context string.
+        i18n: Internationalization instance.
+
+    Returns:
+        The task prompt formatted with context if provided.
+    """
+    if context:
+        return i18n.slice("task_with_context").format(task=task_prompt, context=context)
+    return task_prompt
+
+
+def get_knowledge_config(agent: Agent) -> dict[str, Any]:
+    """Get knowledge configuration from agent.
+
+    Args:
+        agent: The agent instance.
+
+    Returns:
+        Dictionary of knowledge configuration.
+    """
+    return agent.knowledge_config.model_dump() if agent.knowledge_config else {}
+
+
+def handle_knowledge_retrieval(
+    agent: Agent,
+    task: Task,
+    task_prompt: str,
+    knowledge_config: dict[str, Any],
+    query_func: Any,
+    crew_query_func: Any,
+) -> str:
+    """Handle knowledge retrieval for task execution.
+
+    This function handles both agent-specific and crew-specific knowledge queries.
+
+    Args:
+        agent: The agent performing the task.
+        task: The task being executed.
+        task_prompt: The current task prompt.
+        knowledge_config: Knowledge configuration dictionary.
+        query_func: Function to query agent knowledge (sync or async).
+        crew_query_func: Function to query crew knowledge (sync or async).
+
+    Returns:
+        The task prompt potentially augmented with knowledge context.
+    """
+    if not (agent.knowledge or (agent.crew and agent.crew.knowledge)):
+        return task_prompt
+
+    crewai_event_bus.emit(
+        agent,
+        event=KnowledgeRetrievalStartedEvent(
+            from_task=task,
+            from_agent=agent,
+        ),
+    )
+    try:
+        agent.knowledge_search_query = agent._get_knowledge_search_query(
+            task_prompt, task
+        )
+        if agent.knowledge_search_query:
+            if agent.knowledge:
+                agent_knowledge_snippets = query_func(
+                    [agent.knowledge_search_query], **knowledge_config
+                )
+                if agent_knowledge_snippets:
+                    agent.agent_knowledge_context = extract_knowledge_context(
+                        agent_knowledge_snippets
+                    )
+                    if agent.agent_knowledge_context:
+                        task_prompt += agent.agent_knowledge_context
+
+            knowledge_snippets = crew_query_func(
+                [agent.knowledge_search_query], **knowledge_config
+            )
+            if knowledge_snippets:
+                agent.crew_knowledge_context = extract_knowledge_context(
+                    knowledge_snippets
+                )
+                if agent.crew_knowledge_context:
+                    task_prompt += agent.crew_knowledge_context
+
+            crewai_event_bus.emit(
+                agent,
+                event=KnowledgeRetrievalCompletedEvent(
+                    query=agent.knowledge_search_query,
+                    from_task=task,
+                    from_agent=agent,
+                    retrieved_knowledge=_combine_knowledge_context(agent),
+                ),
+            )
+    except Exception as e:
+        crewai_event_bus.emit(
+            agent,
+            event=KnowledgeSearchQueryFailedEvent(
+                query=agent.knowledge_search_query or "",
+                error=str(e),
+                from_task=task,
+                from_agent=agent,
+            ),
+        )
+    return task_prompt
+
+
+def _combine_knowledge_context(agent: Agent) -> str:
+    """Combine agent and crew knowledge contexts into a single string.
+
+    Args:
+        agent: The agent with knowledge contexts.
+
+    Returns:
+        Combined knowledge context string.
+    """
+    agent_ctx = agent.agent_knowledge_context or ""
+    crew_ctx = agent.crew_knowledge_context or ""
+    separator = "\n" if agent_ctx and crew_ctx else ""
+    return agent_ctx + separator + crew_ctx
+
+
+def apply_training_data(agent: Agent, task_prompt: str) -> str:
+    """Apply training data to the task prompt.
+
+    Args:
+        agent: The agent performing the task.
+        task_prompt: The task prompt.
+
+    Returns:
+        The task prompt with training data applied.
+    """
+    if agent.crew and agent.crew._train:
+        return agent._training_handler(task_prompt=task_prompt)
+    return agent._use_trained_data(task_prompt=task_prompt)
+
+
+def process_tool_results(agent: Agent, result: Any) -> Any:
+    """Process tool results, returning result_as_answer if applicable.
+
+    Args:
+        agent: The agent with tool results.
+        result: The current result.
+
+    Returns:
+        The final result, potentially overridden by tool result_as_answer.
+    """
+    for tool_result in agent.tools_results:
+        if tool_result.get("result_as_answer", False):
+            result = tool_result["result"]
+    return result
+
+
+def save_last_messages(agent: Agent) -> None:
+    """Save the last messages from agent executor.
+
+    Args:
+        agent: The agent instance.
+    """
+    agent._last_messages = (
+        agent.agent_executor.messages.copy()
+        if agent.agent_executor and hasattr(agent.agent_executor, "messages")
+        else []
+    )
+
+
+def prepare_tools(
+    agent: Agent, tools: list[BaseTool] | None, task: Task
+) -> list[BaseTool]:
+    """Prepare tools for task execution and create agent executor.
+
+    Args:
+        agent: The agent instance.
+        tools: Optional list of tools.
+        task: The task being executed.
+
+    Returns:
+        The list of tools to use.
+    """
+    final_tools = tools or agent.tools or []
+    agent.create_agent_executor(tools=final_tools, task=task)
+    return final_tools
+
+
+def validate_max_execution_time(max_execution_time: int | None) -> None:
+    """Validate max_execution_time parameter.
+
+    Args:
+        max_execution_time: The maximum execution time to validate.
+
+    Raises:
+        ValueError: If max_execution_time is not a positive integer.
+    """
+    if max_execution_time is not None:
+        if not isinstance(max_execution_time, int) or max_execution_time <= 0:
+            raise ValueError(
+                "Max Execution time must be a positive integer greater than zero"
+            )
+
+
+async def ahandle_knowledge_retrieval(
+    agent: Agent,
+    task: Task,
+    task_prompt: str,
+    knowledge_config: dict[str, Any],
+) -> str:
+    """Handle async knowledge retrieval for task execution.
+
+    Args:
+        agent: The agent performing the task.
+        task: The task being executed.
+        task_prompt: The current task prompt.
+        knowledge_config: Knowledge configuration dictionary.
+
+    Returns:
+        The task prompt potentially augmented with knowledge context.
+    """
+    if not (agent.knowledge or (agent.crew and agent.crew.knowledge)):
+        return task_prompt
+
+    crewai_event_bus.emit(
+        agent,
+        event=KnowledgeRetrievalStartedEvent(
+            from_task=task,
+            from_agent=agent,
+        ),
+    )
+    try:
+        agent.knowledge_search_query = agent._get_knowledge_search_query(
+            task_prompt, task
+        )
+        if agent.knowledge_search_query:
+            if agent.knowledge:
+                agent_knowledge_snippets = await agent.knowledge.aquery(
+                    [agent.knowledge_search_query], **knowledge_config
+                )
+                if agent_knowledge_snippets:
+                    agent.agent_knowledge_context = extract_knowledge_context(
+                        agent_knowledge_snippets
+                    )
+                    if agent.agent_knowledge_context:
+                        task_prompt += agent.agent_knowledge_context
+
+            knowledge_snippets = await agent.crew.aquery_knowledge(
+                [agent.knowledge_search_query], **knowledge_config
+            )
+            if knowledge_snippets:
+                agent.crew_knowledge_context = extract_knowledge_context(
+                    knowledge_snippets
+                )
+                if agent.crew_knowledge_context:
+                    task_prompt += agent.crew_knowledge_context
+
+            crewai_event_bus.emit(
+                agent,
+                event=KnowledgeRetrievalCompletedEvent(
+                    query=agent.knowledge_search_query,
+                    from_task=task,
+                    from_agent=agent,
+                    retrieved_knowledge=_combine_knowledge_context(agent),
+                ),
+            )
+    except Exception as e:
+        crewai_event_bus.emit(
+            agent,
+            event=KnowledgeSearchQueryFailedEvent(
+                query=agent.knowledge_search_query or "",
+                error=str(e),
+                from_task=task,
+                from_agent=agent,
+            ),
+        )
+    return task_prompt

lib/crewai/src/crewai/agents/agent_builder/base_agent.py

@@ -265,7 +265,7 @@ class BaseAgent(BaseModel, ABC, metaclass=AgentMeta):
         if not mcps:
             return mcps
 
-        validated_mcps = []
+        validated_mcps: list[str | MCPServerConfig] = []
         for mcp in mcps:
             if isinstance(mcp, str):
                 if mcp.startswith(("https://", "crewai-amp:")):
@@ -347,6 +347,15 @@ class BaseAgent(BaseModel, ABC, metaclass=AgentMeta):
     ) -> str:
         pass
 
+    @abstractmethod
+    async def aexecute_task(
+        self,
+        task: Any,
+        context: str | None = None,
+        tools: list[BaseTool] | None = None,
+    ) -> str:
+        """Execute a task asynchronously."""
+
     @abstractmethod
     def create_agent_executor(self, tools: list[BaseTool] | None = None) -> None:
         pass

lib/crewai/src/crewai/agents/crew_agent_executor.py

@@ -28,6 +28,7 @@ from crewai.hooks.llm_hooks import (
     get_before_llm_call_hooks,
 )
 from crewai.utilities.agent_utils import (
+    aget_llm_response,
     enforce_rpm_limit,
     format_message_for_llm,
     get_llm_response,
@@ -43,7 +44,10 @@ from crewai.utilities.agent_utils import (
 from crewai.utilities.constants import TRAINING_DATA_FILE
 from crewai.utilities.i18n import I18N, get_i18n
 from crewai.utilities.printer import Printer
-from crewai.utilities.tool_utils import execute_tool_and_check_finality
+from crewai.utilities.tool_utils import (
+    aexecute_tool_and_check_finality,
+    execute_tool_and_check_finality,
+)
 from crewai.utilities.training_handler import CrewTrainingHandler
 
 
@@ -134,8 +138,8 @@ class CrewAgentExecutor(CrewAgentExecutorMixin):
         self.messages: list[LLMMessage] = []
         self.iterations = 0
         self.log_error_after = 3
-        self.before_llm_call_hooks: list[Callable] = []
-        self.after_llm_call_hooks: list[Callable] = []
+        self.before_llm_call_hooks: list[Callable[..., Any]] = []
+        self.after_llm_call_hooks: list[Callable[..., Any]] = []
         self.before_llm_call_hooks.extend(get_before_llm_call_hooks())
         self.after_llm_call_hooks.extend(get_after_llm_call_hooks())
         if self.llm:
@@ -312,6 +316,154 @@ class CrewAgentExecutor(CrewAgentExecutorMixin):
         self._show_logs(formatted_answer)
         return formatted_answer
 
+    async def ainvoke(self, inputs: dict[str, Any]) -> dict[str, Any]:
+        """Execute the agent asynchronously with given inputs.
+
+        Args:
+            inputs: Input dictionary containing prompt variables.
+
+        Returns:
+            Dictionary with agent output.
+        """
+        if "system" in self.prompt:
+            system_prompt = self._format_prompt(
+                cast(str, self.prompt.get("system", "")), inputs
+            )
+            user_prompt = self._format_prompt(
+                cast(str, self.prompt.get("user", "")), inputs
+            )
+            self.messages.append(format_message_for_llm(system_prompt, role="system"))
+            self.messages.append(format_message_for_llm(user_prompt))
+        else:
+            user_prompt = self._format_prompt(self.prompt.get("prompt", ""), inputs)
+            self.messages.append(format_message_for_llm(user_prompt))
+
+        self._show_start_logs()
+
+        self.ask_for_human_input = bool(inputs.get("ask_for_human_input", False))
+
+        try:
+            formatted_answer = await self._ainvoke_loop()
+        except AssertionError:
+            self._printer.print(
+                content="Agent failed to reach a final answer. This is likely a bug - please report it.",
+                color="red",
+            )
+            raise
+        except Exception as e:
+            handle_unknown_error(self._printer, e)
+            raise
+
+        if self.ask_for_human_input:
+            formatted_answer = self._handle_human_feedback(formatted_answer)
+
+        self._create_short_term_memory(formatted_answer)
+        self._create_long_term_memory(formatted_answer)
+        self._create_external_memory(formatted_answer)
+        return {"output": formatted_answer.output}
+
+    async def _ainvoke_loop(self) -> AgentFinish:
+        """Execute agent loop asynchronously until completion.
+
+        Returns:
+            Final answer from the agent.
+        """
+        formatted_answer = None
+        while not isinstance(formatted_answer, AgentFinish):
+            try:
+                if has_reached_max_iterations(self.iterations, self.max_iter):
+                    formatted_answer = handle_max_iterations_exceeded(
+                        formatted_answer,
+                        printer=self._printer,
+                        i18n=self._i18n,
+                        messages=self.messages,
+                        llm=self.llm,
+                        callbacks=self.callbacks,
+                    )
+                    break
+
+                enforce_rpm_limit(self.request_within_rpm_limit)
+
+                answer = await aget_llm_response(
+                    llm=self.llm,
+                    messages=self.messages,
+                    callbacks=self.callbacks,
+                    printer=self._printer,
+                    from_task=self.task,
+                    from_agent=self.agent,
+                    response_model=self.response_model,
+                    executor_context=self,
+                )
+                formatted_answer = process_llm_response(answer, self.use_stop_words)  # type: ignore[assignment]
+
+                if isinstance(formatted_answer, AgentAction):
+                    fingerprint_context = {}
+                    if (
+                        self.agent
+                        and hasattr(self.agent, "security_config")
+                        and hasattr(self.agent.security_config, "fingerprint")
+                    ):
+                        fingerprint_context = {
+                            "agent_fingerprint": str(
+                                self.agent.security_config.fingerprint
+                            )
+                        }
+
+                    tool_result = await aexecute_tool_and_check_finality(
+                        agent_action=formatted_answer,
+                        fingerprint_context=fingerprint_context,
+                        tools=self.tools,
+                        i18n=self._i18n,
+                        agent_key=self.agent.key if self.agent else None,
+                        agent_role=self.agent.role if self.agent else None,
+                        tools_handler=self.tools_handler,
+                        task=self.task,
+                        agent=self.agent,
+                        function_calling_llm=self.function_calling_llm,
+                        crew=self.crew,
+                    )
+                    formatted_answer = self._handle_agent_action(
+                        formatted_answer, tool_result
+                    )
+
+                self._invoke_step_callback(formatted_answer)  # type: ignore[arg-type]
+                self._append_message(formatted_answer.text)  # type: ignore[union-attr,attr-defined]
+
+            except OutputParserError as e:
+                formatted_answer = handle_output_parser_exception(  # type: ignore[assignment]
+                    e=e,
+                    messages=self.messages,
+                    iterations=self.iterations,
+                    log_error_after=self.log_error_after,
+                    printer=self._printer,
+                )
+
+            except Exception as e:
+                if e.__class__.__module__.startswith("litellm"):
+                    raise e
+                if is_context_length_exceeded(e):
+                    handle_context_length(
+                        respect_context_window=self.respect_context_window,
+                        printer=self._printer,
+                        messages=self.messages,
+                        llm=self.llm,
+                        callbacks=self.callbacks,
+                        i18n=self._i18n,
+                    )
+                    continue
+                handle_unknown_error(self._printer, e)
+                raise e
+            finally:
+                self.iterations += 1
+
+        if not isinstance(formatted_answer, AgentFinish):
+            raise RuntimeError(
+                "Agent execution ended without reaching a final answer. "
+                f"Got {type(formatted_answer).__name__} instead of AgentFinish."
+            )
+        self._show_logs(formatted_answer)
+        return formatted_answer
+
     def _handle_agent_action(
         self, formatted_answer: AgentAction, tool_result: ToolResult
     ) -> AgentAction | AgentFinish:

lib/crewai/src/crewai/cli/templates/crew/pyproject.toml

@@ -5,7 +5,7 @@ description = "{{name}} using crewAI"
 authors = [{ name = "Your Name", email = "you@example.com" }]
 requires-python = ">=3.10,<3.14"
 dependencies = [
-    "crewai[tools]==1.6.0"
+    "crewai[tools]==1.6.1"
 ]
 
 [project.scripts]

lib/crewai/src/crewai/cli/templates/flow/pyproject.toml

@@ -5,7 +5,7 @@ description = "{{name}} using crewAI"
 authors = [{ name = "Your Name", email = "you@example.com" }]
 requires-python = ">=3.10,<3.14"
 dependencies = [
-    "crewai[tools]==1.6.0"
+    "crewai[tools]==1.6.1"
 ]
 
 [project.scripts]

lib/crewai/src/crewai/crew.py

@@ -327,7 +327,7 @@ class Crew(FlowTrackable, BaseModel):
     def set_private_attrs(self) -> Crew:
         """set private attributes."""
         self._cache_handler = CacheHandler()
-        event_listener = EventListener()  # type: ignore[no-untyped-call]
+        event_listener = EventListener()
 
         # Determine and set tracing state once for this execution
         tracing_enabled = should_enable_tracing(override=self.tracing)
@@ -348,12 +348,12 @@ class Crew(FlowTrackable, BaseModel):
         return self
 
     def _initialize_default_memories(self) -> None:
-        self._long_term_memory = self._long_term_memory or LongTermMemory()  # type: ignore[no-untyped-call]
-        self._short_term_memory = self._short_term_memory or ShortTermMemory(  # type: ignore[no-untyped-call]
+        self._long_term_memory = self._long_term_memory or LongTermMemory()
+        self._short_term_memory = self._short_term_memory or ShortTermMemory(
             crew=self,
             embedder_config=self.embedder,
         )
-        self._entity_memory = self.entity_memory or EntityMemory(  # type: ignore[no-untyped-call]
+        self._entity_memory = self.entity_memory or EntityMemory(
             crew=self, embedder_config=self.embedder
         )
 
@@ -948,6 +948,342 @@ class Crew(FlowTrackable, BaseModel):
         self._task_output_handler.reset()
         return list(results)
 
+    async def akickoff(
+        self, inputs: dict[str, Any] | None = None
+    ) -> CrewOutput | CrewStreamingOutput:
+        """Native async kickoff method using async task execution throughout.
+
+        Unlike kickoff_async which wraps sync kickoff in a thread, this method
+        uses native async/await for all operations including task execution,
+        memory operations, and knowledge queries.
+        """
+        if self.stream:
+            for agent in self.agents:
+                if agent.llm is not None:
+                    agent.llm.stream = True
+
+            result_holder: list[CrewOutput] = []
+            current_task_info: TaskInfo = {
+                "index": 0,
+                "name": "",
+                "id": "",
+                "agent_role": "",
+                "agent_id": "",
+            }
+
+            state = create_streaming_state(
+                current_task_info, result_holder, use_async=True
+            )
+            output_holder: list[CrewStreamingOutput | FlowStreamingOutput] = []
+
+            async def run_crew() -> None:
+                try:
+                    self.stream = False
+                    result = await self.akickoff(inputs)
+                    if isinstance(result, CrewOutput):
+                        result_holder.append(result)
+                except Exception as e:
+                    signal_error(state, e, is_async=True)
+                finally:
+                    self.stream = True
+                    signal_end(state, is_async=True)
+
+            streaming_output = CrewStreamingOutput(
+                async_iterator=create_async_chunk_generator(
+                    state, run_crew, output_holder
+                )
+            )
+            output_holder.append(streaming_output)
+
+            return streaming_output
+
+        ctx = baggage.set_baggage(
+            "crew_context", CrewContext(id=str(self.id), key=self.key)
+        )
+        token = attach(ctx)
+
+        try:
+            for before_callback in self.before_kickoff_callbacks:
+                if inputs is None:
+                    inputs = {}
+                inputs = before_callback(inputs)
+
+            crewai_event_bus.emit(
+                self,
+                CrewKickoffStartedEvent(crew_name=self.name, inputs=inputs),
+            )
+
+            self._task_output_handler.reset()
+            self._logging_color = "bold_purple"
+
+            if inputs is not None:
+                self._inputs = inputs
+                self._interpolate_inputs(inputs)
+            self._set_tasks_callbacks()
+            self._set_allow_crewai_trigger_context_for_first_task()
+
+            for agent in self.agents:
+                agent.crew = self
+                agent.set_knowledge(crew_embedder=self.embedder)
+                if not agent.function_calling_llm:  # type: ignore[attr-defined]
+                    agent.function_calling_llm = self.function_calling_llm  # type: ignore[attr-defined]
+
+                if not agent.step_callback:  # type: ignore[attr-defined]
+                    agent.step_callback = self.step_callback  # type: ignore[attr-defined]
+
+                agent.create_agent_executor()
+
+            if self.planning:
+                self._handle_crew_planning()
+
+            if self.process == Process.sequential:
+                result = await self._arun_sequential_process()
+            elif self.process == Process.hierarchical:
+                result = await self._arun_hierarchical_process()
+            else:
+                raise NotImplementedError(
+                    f"The process '{self.process}' is not implemented yet."
+                )
+
+            for after_callback in self.after_kickoff_callbacks:
+                result = after_callback(result)
+
+            self.usage_metrics = self.calculate_usage_metrics()
+
+            return result
+        except Exception as e:
+            crewai_event_bus.emit(
+                self,
+                CrewKickoffFailedEvent(error=str(e), crew_name=self.name),
+            )
+            raise
+        finally:
+            detach(token)
+
+    async def akickoff_for_each(
+        self, inputs: list[dict[str, Any]]
+    ) -> list[CrewOutput | CrewStreamingOutput] | CrewStreamingOutput:
+        """Native async execution of the Crew's workflow for each input.
+
+        Uses native async throughout rather than thread-based async.
+        If stream=True, returns a single CrewStreamingOutput that yields chunks
+        from all crews as they arrive.
+        """
+        crew_copies = [self.copy() for _ in inputs]
+
+        if self.stream:
+            result_holder: list[list[CrewOutput]] = [[]]
+            current_task_info: TaskInfo = {
+                "index": 0,
+                "name": "",
+                "id": "",
+                "agent_role": "",
+                "agent_id": "",
+            }
+
+            state = create_streaming_state(
+                current_task_info, result_holder, use_async=True
+            )
+            output_holder: list[CrewStreamingOutput | FlowStreamingOutput] = []
+
+            async def run_all_crews() -> None:
+                try:
+                    streaming_outputs: list[CrewStreamingOutput] = []
+                    for i, crew in enumerate(crew_copies):
+                        streaming = await crew.akickoff(inputs=inputs[i])
+                        if isinstance(streaming, CrewStreamingOutput):
+                            streaming_outputs.append(streaming)
+
+                    async def consume_stream(
+                        stream_output: CrewStreamingOutput,
+                    ) -> CrewOutput:
+                        async for chunk in stream_output:
+                            if state.async_queue is not None and state.loop is not None:
+                                state.loop.call_soon_threadsafe(
+                                    state.async_queue.put_nowait, chunk
+                                )
+                        return stream_output.result
+
+                    crew_results = await asyncio.gather(
+                        *[consume_stream(s) for s in streaming_outputs]
+                    )
+                    result_holder[0] = list(crew_results)
+                except Exception as e:
+                    signal_error(state, e, is_async=True)
+                finally:
+                    signal_end(state, is_async=True)
+
+            streaming_output = CrewStreamingOutput(
+                async_iterator=create_async_chunk_generator(
+                    state, run_all_crews, output_holder
+                )
+            )
+
+            def set_results_wrapper(result: Any) -> None:
+                streaming_output._set_results(result)
+
+            streaming_output._set_result = set_results_wrapper  # type: ignore[method-assign]
+            output_holder.append(streaming_output)
+
+            return streaming_output
+
+        tasks = [
+            asyncio.create_task(crew_copy.akickoff(inputs=input_data))
+            for crew_copy, input_data in zip(crew_copies, inputs, strict=True)
+        ]
+
+        results = await asyncio.gather(*tasks)
+
+        total_usage_metrics = UsageMetrics()
+        for crew_copy in crew_copies:
+            if crew_copy.usage_metrics:
+                total_usage_metrics.add_usage_metrics(crew_copy.usage_metrics)
+        self.usage_metrics = total_usage_metrics
+
+        self._task_output_handler.reset()
+        return list(results)
+
+    async def _arun_sequential_process(self) -> CrewOutput:
+        """Executes tasks sequentially using native async and returns the final output."""
+        return await self._aexecute_tasks(self.tasks)
+
+    async def _arun_hierarchical_process(self) -> CrewOutput:
+        """Creates and assigns a manager agent to complete the tasks using native async."""
+        self._create_manager_agent()
+        return await self._aexecute_tasks(self.tasks)
+
+    async def _aexecute_tasks(
+        self,
+        tasks: list[Task],
+        start_index: int | None = 0,
+        was_replayed: bool = False,
+    ) -> CrewOutput:
+        """Executes tasks using native async and returns the final output.
+
+        Args:
+            tasks: List of tasks to execute
+            start_index: Index to start execution from (for replay)
+            was_replayed: Whether this is a replayed execution
+
+        Returns:
+            CrewOutput: Final output of the crew
+        """
+        task_outputs: list[TaskOutput] = []
+        pending_tasks: list[tuple[Task, asyncio.Task[TaskOutput], int]] = []
+        last_sync_output: TaskOutput | None = None
+
+        for task_index, task in enumerate(tasks):
+            if start_index is not None and task_index < start_index:
+                if task.output:
+                    if task.async_execution:
+                        task_outputs.append(task.output)
+                    else:
+                        task_outputs = [task.output]
+                        last_sync_output = task.output
+                continue
+
+            agent_to_use = self._get_agent_to_use(task)
+            if agent_to_use is None:
+                raise ValueError(
+                    f"No agent available for task: {task.description}. "
+                    f"Ensure that either the task has an assigned agent "
+                    f"or a manager agent is provided."
+                )
+
+            tools_for_task = task.tools or agent_to_use.tools or []
+            tools_for_task = self._prepare_tools(
+                agent_to_use,
+                task,
+                tools_for_task,
+            )
+
+            self._log_task_start(task, agent_to_use.role)
+
+            if isinstance(task, ConditionalTask):
+                skipped_task_output = await self._ahandle_conditional_task(
+                    task, task_outputs, pending_tasks, task_index, was_replayed
+                )
+                if skipped_task_output:
+                    task_outputs.append(skipped_task_output)
+                    continue
+
+            if task.async_execution:
+                context = self._get_context(
+                    task, [last_sync_output] if last_sync_output else []
+                )
+                async_task = asyncio.create_task(
+                    task.aexecute_sync(
+                        agent=agent_to_use,
+                        context=context,
+                        tools=tools_for_task,
+                    )
+                )
+                pending_tasks.append((task, async_task, task_index))
+            else:
+                if pending_tasks:
+                    task_outputs = await self._aprocess_async_tasks(
+                        pending_tasks, was_replayed
+                    )
+                    pending_tasks.clear()
+
+                context = self._get_context(task, task_outputs)
+                task_output = await task.aexecute_sync(
+                    agent=agent_to_use,
+                    context=context,
+                    tools=tools_for_task,
+                )
+                task_outputs.append(task_output)
+                self._process_task_result(task, task_output)
+                self._store_execution_log(task, task_output, task_index, was_replayed)
+
+        if pending_tasks:
+            task_outputs = await self._aprocess_async_tasks(pending_tasks, was_replayed)
+
+        return self._create_crew_output(task_outputs)
+
+    async def _ahandle_conditional_task(
+        self,
+        task: ConditionalTask,
+        task_outputs: list[TaskOutput],
+        pending_tasks: list[tuple[Task, asyncio.Task[TaskOutput], int]],
+        task_index: int,
+        was_replayed: bool,
+    ) -> TaskOutput | None:
+        """Handle conditional task evaluation using native async."""
+        if pending_tasks:
+            task_outputs = await self._aprocess_async_tasks(pending_tasks, was_replayed)
+            pending_tasks.clear()
+
+        previous_output = task_outputs[-1] if task_outputs else None
+        if previous_output is not None and not task.should_execute(previous_output):
+            self._logger.log(
+                "debug",
+                f"Skipping conditional task: {task.description}",
+                color="yellow",
+            )
+            skipped_task_output = task.get_skipped_task_output()
+
+            if not was_replayed:
+                self._store_execution_log(task, skipped_task_output, task_index)
+            return skipped_task_output
+        return None
+
+    async def _aprocess_async_tasks(
+        self,
+        pending_tasks: list[tuple[Task, asyncio.Task[TaskOutput], int]],
+        was_replayed: bool = False,
+    ) -> list[TaskOutput]:
+        """Process pending async tasks and return their outputs."""
+        task_outputs: list[TaskOutput] = []
+        for future_task, async_task, task_index in pending_tasks:
+            task_output = await async_task
+            task_outputs.append(task_output)
+            self._process_task_result(future_task, task_output)
+            self._store_execution_log(
+                future_task, task_output, task_index, was_replayed
+            )
+        return task_outputs
+
     def _handle_crew_planning(self) -> None:
         """Handles the Crew planning."""
         self._logger.log("info", "Planning the crew execution")
@@ -1431,6 +1767,16 @@ class Crew(FlowTrackable, BaseModel):
             )
         return None
 
+    async def aquery_knowledge(
+        self, query: list[str], results_limit: int = 3, score_threshold: float = 0.35
+    ) -> list[SearchResult] | None:
+        """Query the crew's knowledge base for relevant information asynchronously."""
+        if self.knowledge:
+            return await self.knowledge.aquery(
+                query, results_limit=results_limit, score_threshold=score_threshold
+            )
+        return None
+
     def fetch_inputs(self) -> set[str]:
         """
         Gathers placeholders (e.g., {something}) referenced in tasks or agents.

lib/crewai/src/crewai/events/listeners/tracing/trace_batch_manager.py

@@ -76,7 +76,7 @@ class TraceBatchManager:
         use_ephemeral: bool = False,
     ) -> TraceBatch:
         """Initialize a new trace batch (thread-safe)"""
-        with self._init_lock:
+        with self._batch_ready_cv:
             if self.current_batch is not None:
                 logger.debug(
                     "Batch already initialized, skipping duplicate initialization"
@@ -99,7 +99,6 @@ class TraceBatchManager:
                 self.backend_initialized = True
 
             self._batch_ready_cv.notify_all()
-
             return self.current_batch
 
     def _initialize_backend_batch(
@@ -107,7 +106,7 @@ class TraceBatchManager:
         user_context: dict[str, str],
         execution_metadata: dict[str, Any],
         use_ephemeral: bool = False,
-    ):
+    ) -> None:
         """Send batch initialization to backend"""
 
         if not is_tracing_enabled_in_context():
@@ -204,7 +203,7 @@ class TraceBatchManager:
                     return False
         return True
 
-    def add_event(self, trace_event: TraceEvent):
+    def add_event(self, trace_event: TraceEvent) -> None:
         """Add event to buffer"""
         self.event_buffer.append(trace_event)
 
@@ -300,7 +299,7 @@ class TraceBatchManager:
 
         return finalized_batch
 
-    def _finalize_backend_batch(self, events_count: int = 0):
+    def _finalize_backend_batch(self, events_count: int = 0) -> None:
         """Send batch finalization to backend
 
         Args:
@@ -366,7 +365,7 @@ class TraceBatchManager:
             logger.error(f"❌ Error finalizing trace batch: {e}")
             self.plus_api.mark_trace_batch_as_failed(self.trace_batch_id, str(e))
 
-    def _cleanup_batch_data(self):
+    def _cleanup_batch_data(self) -> None:
         """Clean up batch data after successful finalization to free memory"""
         try:
             if hasattr(self, "event_buffer") and self.event_buffer:
@@ -411,7 +410,7 @@ class TraceBatchManager:
                 lambda: self.current_batch is not None, timeout=timeout
             )
 
-    def record_start_time(self, key: str):
+    def record_start_time(self, key: str) -> None:
         """Record start time for duration calculation"""
         self.execution_start_times[key] = datetime.now(timezone.utc)
 

lib/crewai/src/crewai/events/listeners/tracing/trace_listener.py

@@ -71,6 +71,7 @@ from crewai.events.types.reasoning_events import (
     AgentReasoningFailedEvent,
     AgentReasoningStartedEvent,
 )
+from crewai.events.types.system_events import SignalEvent, on_signal
 from crewai.events.types.task_events import (
     TaskCompletedEvent,
     TaskFailedEvent,
@@ -159,6 +160,7 @@ class TraceCollectionListener(BaseEventListener):
         self._register_flow_event_handlers(crewai_event_bus)
         self._register_context_event_handlers(crewai_event_bus)
         self._register_action_event_handlers(crewai_event_bus)
+        self._register_system_event_handlers(crewai_event_bus)
 
         self._listeners_setup = True
 
@@ -458,6 +460,15 @@ class TraceCollectionListener(BaseEventListener):
         ) -> None:
             self._handle_action_event("knowledge_query_failed", source, event)
 
+    def _register_system_event_handlers(self, event_bus: CrewAIEventsBus) -> None:
+        """Register handlers for system signal events (SIGTERM, SIGINT, etc.)."""
+
+        @on_signal
+        def handle_signal(source: Any, event: SignalEvent) -> None:
+            """Flush trace batch on system signals to prevent data loss."""
+            if self.batch_manager.is_batch_initialized():
+                self.batch_manager.finalize_batch()
+
     def _initialize_crew_batch(self, source: Any, event: Any) -> None:
         """Initialize trace batch.
 

lib/crewai/src/crewai/events/types/system_events.py

@@ -0,0 +1,102 @@
+"""System signal event types for CrewAI.
+
+This module contains event types for system-level signals like SIGTERM,
+allowing listeners to perform cleanup operations before process termination.
+"""
+
+from collections.abc import Callable
+from enum import IntEnum
+import signal
+from typing import Annotated, Literal, TypeVar
+
+from pydantic import Field, TypeAdapter
+
+from crewai.events.base_events import BaseEvent
+
+
+class SignalType(IntEnum):
+    """Enumeration of supported system signals."""
+
+    SIGTERM = signal.SIGTERM
+    SIGINT = signal.SIGINT
+    SIGHUP = signal.SIGHUP
+    SIGTSTP = signal.SIGTSTP
+    SIGCONT = signal.SIGCONT
+
+
+class SigTermEvent(BaseEvent):
+    """Event emitted when SIGTERM is received."""
+
+    type: Literal["SIGTERM"] = "SIGTERM"
+    signal_number: SignalType = SignalType.SIGTERM
+    reason: str | None = None
+
+
+class SigIntEvent(BaseEvent):
+    """Event emitted when SIGINT is received."""
+
+    type: Literal["SIGINT"] = "SIGINT"
+    signal_number: SignalType = SignalType.SIGINT
+    reason: str | None = None
+
+
+class SigHupEvent(BaseEvent):
+    """Event emitted when SIGHUP is received."""
+
+    type: Literal["SIGHUP"] = "SIGHUP"
+    signal_number: SignalType = SignalType.SIGHUP
+    reason: str | None = None
+
+
+class SigTStpEvent(BaseEvent):
+    """Event emitted when SIGTSTP is received.
+
+    Note: SIGSTOP cannot be caught - it immediately suspends the process.
+    """
+
+    type: Literal["SIGTSTP"] = "SIGTSTP"
+    signal_number: SignalType = SignalType.SIGTSTP
+    reason: str | None = None
+
+
+class SigContEvent(BaseEvent):
+    """Event emitted when SIGCONT is received."""
+
+    type: Literal["SIGCONT"] = "SIGCONT"
+    signal_number: SignalType = SignalType.SIGCONT
+    reason: str | None = None
+
+
+SignalEvent = Annotated[
+    SigTermEvent | SigIntEvent | SigHupEvent | SigTStpEvent | SigContEvent,
+    Field(discriminator="type"),
+]
+
+signal_event_adapter: TypeAdapter[SignalEvent] = TypeAdapter(SignalEvent)
+
+SIGNAL_EVENT_TYPES: tuple[type[BaseEvent], ...] = (
+    SigTermEvent,
+    SigIntEvent,
+    SigHupEvent,
+    SigTStpEvent,
+    SigContEvent,
+)
+
+
+T = TypeVar("T", bound=Callable[[object, SignalEvent], None])
+
+
+def on_signal(func: T) -> T:
+    """Decorator to register a handler for all signal events.
+
+    Args:
+        func: Handler function that receives (source, event) arguments.
+
+    Returns:
+        The original function, registered for all signal event types.
+    """
+    from crewai.events.event_bus import crewai_event_bus
+
+    for event_type in SIGNAL_EVENT_TYPES:
+        crewai_event_bus.on(event_type)(func)
+    return func

lib/crewai/src/crewai/flow/flow.py

@@ -1032,6 +1032,20 @@ class Flow(Generic[T], metaclass=FlowMeta):
         finally:
             detach(flow_token)
 
+    async def akickoff(
+        self, inputs: dict[str, Any] | None = None
+    ) -> Any | FlowStreamingOutput:
+        """Native async method to start the flow execution. Alias for kickoff_async.
+
+
+        Args:
+            inputs: Optional dictionary containing input values and/or a state ID for restoration.
+
+        Returns:
+            The final output from the flow, which is the result of the last executed method.
+        """
+        return await self.kickoff_async(inputs)
+
     async def _execute_start_method(self, start_method_name: FlowMethodName) -> None:
         """Executes a flow's start method and its triggered listeners.
 

lib/crewai/src/crewai/knowledge/knowledge.py

@@ -32,8 +32,8 @@ class Knowledge(BaseModel):
         sources: list[BaseKnowledgeSource],
         embedder: EmbedderConfig | None = None,
         storage: KnowledgeStorage | None = None,
-        **data,
-    ):
+        **data: object,
+    ) -> None:
         super().__init__(**data)
         if storage:
             self.storage = storage
@@ -75,3 +75,44 @@ class Knowledge(BaseModel):
             self.storage.reset()
         else:
             raise ValueError("Storage is not initialized.")
+
+    async def aquery(
+        self, query: list[str], results_limit: int = 5, score_threshold: float = 0.6
+    ) -> list[SearchResult]:
+        """Query across all knowledge sources asynchronously.
+
+        Args:
+            query: List of query strings.
+            results_limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            The top results matching the query.
+
+        Raises:
+            ValueError: If storage is not initialized.
+        """
+        if self.storage is None:
+            raise ValueError("Storage is not initialized.")
+
+        return await self.storage.asearch(
+            query,
+            limit=results_limit,
+            score_threshold=score_threshold,
+        )
+
+    async def aadd_sources(self) -> None:
+        """Add all knowledge sources to storage asynchronously."""
+        try:
+            for source in self.sources:
+                source.storage = self.storage
+                await source.aadd()
+        except Exception as e:
+            raise e
+
+    async def areset(self) -> None:
+        """Reset the knowledge base asynchronously."""
+        if self.storage:
+            await self.storage.areset()
+        else:
+            raise ValueError("Storage is not initialized.")

lib/crewai/src/crewai/knowledge/source/base_file_knowledge_source.py

@@ -1,5 +1,6 @@
 from abc import ABC, abstractmethod
 from pathlib import Path
+from typing import Any
 
 from pydantic import Field, field_validator
 
@@ -25,7 +26,10 @@ class BaseFileKnowledgeSource(BaseKnowledgeSource, ABC):
     safe_file_paths: list[Path] = Field(default_factory=list)
 
     @field_validator("file_path", "file_paths", mode="before")
-    def validate_file_path(cls, v, info):  # noqa: N805
+    @classmethod
+    def validate_file_path(
+        cls, v: Path | list[Path] | str | list[str] | None, info: Any
+    ) -> Path | list[Path] | str | list[str] | None:
         """Validate that at least one of file_path or file_paths is provided."""
         # Single check if both are None, O(1) instead of nested conditions
         if (
@@ -38,7 +42,7 @@ class BaseFileKnowledgeSource(BaseKnowledgeSource, ABC):
             raise ValueError("Either file_path or file_paths must be provided")
         return v
 
-    def model_post_init(self, _):
+    def model_post_init(self, _: Any) -> None:
         """Post-initialization method to load content."""
         self.safe_file_paths = self._process_file_paths()
         self.validate_content()
@@ -48,7 +52,7 @@ class BaseFileKnowledgeSource(BaseKnowledgeSource, ABC):
     def load_content(self) -> dict[Path, str]:
         """Load and preprocess file content. Should be overridden by subclasses. Assume that the file path is relative to the project root in the knowledge directory."""
 
-    def validate_content(self):
+    def validate_content(self) -> None:
         """Validate the paths."""
         for path in self.safe_file_paths:
             if not path.exists():
@@ -65,13 +69,20 @@ class BaseFileKnowledgeSource(BaseKnowledgeSource, ABC):
                     color="red",
                 )
 
-    def _save_documents(self):
+    def _save_documents(self) -> None:
         """Save the documents to the storage."""
         if self.storage:
             self.storage.save(self.chunks)
         else:
             raise ValueError("No storage found to save documents.")
 
+    async def _asave_documents(self) -> None:
+        """Save the documents to the storage asynchronously."""
+        if self.storage:
+            await self.storage.asave(self.chunks)
+        else:
+            raise ValueError("No storage found to save documents.")
+
     def convert_to_path(self, path: Path | str) -> Path:
         """Convert a path to a Path object."""
         return Path(KNOWLEDGE_DIRECTORY + "/" + path) if isinstance(path, str) else path

lib/crewai/src/crewai/knowledge/source/base_knowledge_source.py

@@ -39,12 +39,32 @@ class BaseKnowledgeSource(BaseModel, ABC):
             for i in range(0, len(text), self.chunk_size - self.chunk_overlap)
         ]
 
-    def _save_documents(self):
-        """
-        Save the documents to the storage.
+    def _save_documents(self) -> None:
+        """Save the documents to the storage.
+
         This method should be called after the chunks and embeddings are generated.
+
+        Raises:
+            ValueError: If no storage is configured.
         """
         if self.storage:
             self.storage.save(self.chunks)
         else:
             raise ValueError("No storage found to save documents.")
+
+    @abstractmethod
+    async def aadd(self) -> None:
+        """Process content, chunk it, compute embeddings, and save them asynchronously."""
+
+    async def _asave_documents(self) -> None:
+        """Save the documents to the storage asynchronously.
+
+        This method should be called after the chunks and embeddings are generated.
+
+        Raises:
+            ValueError: If no storage is configured.
+        """
+        if self.storage:
+            await self.storage.asave(self.chunks)
+        else:
+            raise ValueError("No storage found to save documents.")

lib/crewai/src/crewai/knowledge/source/crew_docling_source.py

@@ -2,27 +2,24 @@ from __future__ import annotations
 
 from collections.abc import Iterator
 from pathlib import Path
+from typing import TYPE_CHECKING, Any
 from urllib.parse import urlparse
 
 
 try:
-    from docling.datamodel.base_models import (  # type: ignore[import-not-found]
-        InputFormat,
-    )
-    from docling.document_converter import (  # type: ignore[import-not-found]
-        DocumentConverter,
-    )
-    from docling.exceptions import ConversionError  # type: ignore[import-not-found]
-    from docling_core.transforms.chunker.hierarchical_chunker import (  # type: ignore[import-not-found]
-        HierarchicalChunker,
-    )
-    from docling_core.types.doc.document import (  # type: ignore[import-not-found]
-        DoclingDocument,
-    )
+    from docling.datamodel.base_models import InputFormat
+    from docling.document_converter import DocumentConverter
+    from docling.exceptions import ConversionError
+    from docling_core.transforms.chunker.hierarchical_chunker import HierarchicalChunker
+    from docling_core.types.doc.document import DoclingDocument
 
     DOCLING_AVAILABLE = True
 except ImportError:
     DOCLING_AVAILABLE = False
+    # Provide type stubs for when docling is not available
+    if TYPE_CHECKING:
+        from docling.document_converter import DocumentConverter
+        from docling_core.types.doc.document import DoclingDocument
 
 from pydantic import Field
 
@@ -32,11 +29,13 @@ from crewai.utilities.logger import Logger
 
 
 class CrewDoclingSource(BaseKnowledgeSource):
-    """Default Source class for converting documents to markdown or json
-    This will auto support PDF, DOCX, and TXT, XLSX, Images, and HTML files without any additional dependencies and follows the docling package as the source of truth.
+    """Default Source class for converting documents to markdown or json.
+
+    This will auto support PDF, DOCX, and TXT, XLSX, Images, and HTML files without
+    any additional dependencies and follows the docling package as the source of truth.
     """
 
-    def __init__(self, *args, **kwargs):
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
         if not DOCLING_AVAILABLE:
             raise ImportError(
                 "The docling package is required to use CrewDoclingSource. "
@@ -66,7 +65,7 @@ class CrewDoclingSource(BaseKnowledgeSource):
         )
     )
 
-    def model_post_init(self, _) -> None:
+    def model_post_init(self, _: Any) -> None:
         if self.file_path:
             self._logger.log(
                 "warning",
@@ -99,6 +98,15 @@ class CrewDoclingSource(BaseKnowledgeSource):
             self.chunks.extend(list(new_chunks_iterable))
         self._save_documents()
 
+    async def aadd(self) -> None:
+        """Add docling content asynchronously."""
+        if self.content is None:
+            return
+        for doc in self.content:
+            new_chunks_iterable = self._chunk_doc(doc)
+            self.chunks.extend(list(new_chunks_iterable))
+        await self._asave_documents()
+
     def _convert_source_to_docling_documents(self) -> list[DoclingDocument]:
         conv_results_iter = self.document_converter.convert_all(self.safe_file_paths)
         return [result.document for result in conv_results_iter]

lib/crewai/src/crewai/knowledge/source/csv_knowledge_source.py

@@ -31,6 +31,15 @@ class CSVKnowledgeSource(BaseFileKnowledgeSource):
         self.chunks.extend(new_chunks)
         self._save_documents()
 
+    async def aadd(self) -> None:
+        """Add CSV file content asynchronously."""
+        content_str = (
+            str(self.content) if isinstance(self.content, dict) else self.content
+        )
+        new_chunks = self._chunk_text(content_str)
+        self.chunks.extend(new_chunks)
+        await self._asave_documents()
+
     def _chunk_text(self, text: str) -> list[str]:
         """Utility method to split text into chunks."""
         return [

lib/crewai/src/crewai/knowledge/source/excel_knowledge_source.py

@@ -1,4 +1,6 @@
 from pathlib import Path
+from types import ModuleType
+from typing import Any
 
 from pydantic import Field, field_validator
 
@@ -26,7 +28,10 @@ class ExcelKnowledgeSource(BaseKnowledgeSource):
     safe_file_paths: list[Path] = Field(default_factory=list)
 
     @field_validator("file_path", "file_paths", mode="before")
-    def validate_file_path(cls, v, info):  # noqa: N805
+    @classmethod
+    def validate_file_path(
+        cls, v: Path | list[Path] | str | list[str] | None, info: Any
+    ) -> Path | list[Path] | str | list[str] | None:
         """Validate that at least one of file_path or file_paths is provided."""
         # Single check if both are None, O(1) instead of nested conditions
         if (
@@ -69,7 +74,7 @@ class ExcelKnowledgeSource(BaseKnowledgeSource):
 
         return [self.convert_to_path(path) for path in path_list]
 
-    def validate_content(self):
+    def validate_content(self) -> None:
         """Validate the paths."""
         for path in self.safe_file_paths:
             if not path.exists():
@@ -86,7 +91,7 @@ class ExcelKnowledgeSource(BaseKnowledgeSource):
                     color="red",
                 )
 
-    def model_post_init(self, _) -> None:
+    def model_post_init(self, _: Any) -> None:
         if self.file_path:
             self._logger.log(
                 "warning",
@@ -128,12 +133,12 @@ class ExcelKnowledgeSource(BaseKnowledgeSource):
         """Convert a path to a Path object."""
         return Path(KNOWLEDGE_DIRECTORY + "/" + path) if isinstance(path, str) else path
 
-    def _import_dependencies(self):
+    def _import_dependencies(self) -> ModuleType:
         """Dynamically import dependencies."""
         try:
-            import pandas as pd  # type: ignore[import-untyped,import-not-found]
+            import pandas as pd  # type: ignore[import-untyped]
 
-            return pd
+            return pd  # type: ignore[no-any-return]
         except ImportError as e:
             missing_package = str(e).split()[-1]
             raise ImportError(
@@ -159,6 +164,20 @@ class ExcelKnowledgeSource(BaseKnowledgeSource):
         self.chunks.extend(new_chunks)
         self._save_documents()
 
+    async def aadd(self) -> None:
+        """Add Excel file content asynchronously."""
+        content_str = ""
+        for value in self.content.values():
+            if isinstance(value, dict):
+                for sheet_value in value.values():
+                    content_str += str(sheet_value) + "\n"
+            else:
+                content_str += str(value) + "\n"
+
+        new_chunks = self._chunk_text(content_str)
+        self.chunks.extend(new_chunks)
+        await self._asave_documents()
+
     def _chunk_text(self, text: str) -> list[str]:
         """Utility method to split text into chunks."""
         return [

lib/crewai/src/crewai/knowledge/source/json_knowledge_source.py

@@ -44,6 +44,15 @@ class JSONKnowledgeSource(BaseFileKnowledgeSource):
         self.chunks.extend(new_chunks)
         self._save_documents()
 
+    async def aadd(self) -> None:
+        """Add JSON file content asynchronously."""
+        content_str = (
+            str(self.content) if isinstance(self.content, dict) else self.content
+        )
+        new_chunks = self._chunk_text(content_str)
+        self.chunks.extend(new_chunks)
+        await self._asave_documents()
+
     def _chunk_text(self, text: str) -> list[str]:
         """Utility method to split text into chunks."""
         return [

lib/crewai/src/crewai/knowledge/source/pdf_knowledge_source.py

@@ -1,4 +1,5 @@
 from pathlib import Path
+from types import ModuleType
 
 from crewai.knowledge.source.base_file_knowledge_source import BaseFileKnowledgeSource
 
@@ -23,7 +24,7 @@ class PDFKnowledgeSource(BaseFileKnowledgeSource):
             content[path] = text
         return content
 
-    def _import_pdfplumber(self):
+    def _import_pdfplumber(self) -> ModuleType:
         """Dynamically import pdfplumber."""
         try:
             import pdfplumber
@@ -44,6 +45,13 @@ class PDFKnowledgeSource(BaseFileKnowledgeSource):
             self.chunks.extend(new_chunks)
         self._save_documents()
 
+    async def aadd(self) -> None:
+        """Add PDF file content asynchronously."""
+        for text in self.content.values():
+            new_chunks = self._chunk_text(text)
+            self.chunks.extend(new_chunks)
+        await self._asave_documents()
+
     def _chunk_text(self, text: str) -> list[str]:
         """Utility method to split text into chunks."""
         return [

lib/crewai/src/crewai/knowledge/source/string_knowledge_source.py

@@ -1,3 +1,5 @@
+from typing import Any
+
 from pydantic import Field
 
 from crewai.knowledge.source.base_knowledge_source import BaseKnowledgeSource
@@ -9,11 +11,11 @@ class StringKnowledgeSource(BaseKnowledgeSource):
     content: str = Field(...)
     collection_name: str | None = Field(default=None)
 
-    def model_post_init(self, _):
+    def model_post_init(self, _: Any) -> None:
         """Post-initialization method to validate content."""
         self.validate_content()
 
-    def validate_content(self):
+    def validate_content(self) -> None:
         """Validate string content."""
         if not isinstance(self.content, str):
             raise ValueError("StringKnowledgeSource only accepts string content")
@@ -24,6 +26,12 @@ class StringKnowledgeSource(BaseKnowledgeSource):
         self.chunks.extend(new_chunks)
         self._save_documents()
 
+    async def aadd(self) -> None:
+        """Add string content asynchronously."""
+        new_chunks = self._chunk_text(self.content)
+        self.chunks.extend(new_chunks)
+        await self._asave_documents()
+
     def _chunk_text(self, text: str) -> list[str]:
         """Utility method to split text into chunks."""
         return [

lib/crewai/src/crewai/knowledge/source/text_file_knowledge_source.py

@@ -25,6 +25,13 @@ class TextFileKnowledgeSource(BaseFileKnowledgeSource):
             self.chunks.extend(new_chunks)
         self._save_documents()
 
+    async def aadd(self) -> None:
+        """Add text file content asynchronously."""
+        for text in self.content.values():
+            new_chunks = self._chunk_text(text)
+            self.chunks.extend(new_chunks)
+        await self._asave_documents()
+
     def _chunk_text(self, text: str) -> list[str]:
         """Utility method to split text into chunks."""
         return [

lib/crewai/src/crewai/knowledge/storage/base_knowledge_storage.py

@@ -21,10 +21,28 @@ class BaseKnowledgeStorage(ABC):
     ) -> list[SearchResult]:
         """Search for documents in the knowledge base."""
 
+    @abstractmethod
+    async def asearch(
+        self,
+        query: list[str],
+        limit: int = 5,
+        metadata_filter: dict[str, Any] | None = None,
+        score_threshold: float = 0.6,
+    ) -> list[SearchResult]:
+        """Search for documents in the knowledge base asynchronously."""
+
     @abstractmethod
     def save(self, documents: list[str]) -> None:
         """Save documents to the knowledge base."""
 
+    @abstractmethod
+    async def asave(self, documents: list[str]) -> None:
+        """Save documents to the knowledge base asynchronously."""
+
     @abstractmethod
     def reset(self) -> None:
         """Reset the knowledge base."""
+
+    @abstractmethod
+    async def areset(self) -> None:
+        """Reset the knowledge base asynchronously."""

lib/crewai/src/crewai/knowledge/storage/knowledge_storage.py

@@ -25,8 +25,8 @@ class KnowledgeStorage(BaseKnowledgeStorage):
     def __init__(
         self,
         embedder: ProviderSpec
-        | BaseEmbeddingsProvider
-        | type[BaseEmbeddingsProvider]
+        | BaseEmbeddingsProvider[Any]
+        | type[BaseEmbeddingsProvider[Any]]
         | None = None,
         collection_name: str | None = None,
     ) -> None:
@@ -127,3 +127,96 @@ class KnowledgeStorage(BaseKnowledgeStorage):
                 ) from e
             Logger(verbose=True).log("error", f"Failed to upsert documents: {e}", "red")
             raise
+
+    async def asearch(
+        self,
+        query: list[str],
+        limit: int = 5,
+        metadata_filter: dict[str, Any] | None = None,
+        score_threshold: float = 0.6,
+    ) -> list[SearchResult]:
+        """Search for documents in the knowledge base asynchronously.
+
+        Args:
+            query: List of query strings.
+            limit: Maximum number of results to return.
+            metadata_filter: Optional metadata filter for the search.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of search results.
+        """
+        try:
+            if not query:
+                raise ValueError("Query cannot be empty")
+
+            client = self._get_client()
+            collection_name = (
+                f"knowledge_{self.collection_name}"
+                if self.collection_name
+                else "knowledge"
+            )
+            query_text = " ".join(query) if len(query) > 1 else query[0]
+
+            return await client.asearch(
+                collection_name=collection_name,
+                query=query_text,
+                limit=limit,
+                metadata_filter=metadata_filter,
+                score_threshold=score_threshold,
+            )
+        except Exception as e:
+            logging.error(
+                f"Error during knowledge search: {e!s}\n{traceback.format_exc()}"
+            )
+            return []
+
+    async def asave(self, documents: list[str]) -> None:
+        """Save documents to the knowledge base asynchronously.
+
+        Args:
+            documents: List of document strings to save.
+        """
+        try:
+            client = self._get_client()
+            collection_name = (
+                f"knowledge_{self.collection_name}"
+                if self.collection_name
+                else "knowledge"
+            )
+            await client.aget_or_create_collection(collection_name=collection_name)
+
+            rag_documents: list[BaseRecord] = [{"content": doc} for doc in documents]
+
+            await client.aadd_documents(
+                collection_name=collection_name, documents=rag_documents
+            )
+        except Exception as e:
+            if "dimension mismatch" in str(e).lower():
+                Logger(verbose=True).log(
+                    "error",
+                    "Embedding dimension mismatch. This usually happens when mixing different embedding models. Try resetting the collection using `crewai reset-memories -a`",
+                    "red",
+                )
+                raise ValueError(
+                    "Embedding dimension mismatch. Make sure you're using the same embedding model "
+                    "across all operations with this collection."
+                    "Try resetting the collection using `crewai reset-memories -a`"
+                ) from e
+            Logger(verbose=True).log("error", f"Failed to upsert documents: {e}", "red")
+            raise
+
+    async def areset(self) -> None:
+        """Reset the knowledge base asynchronously."""
+        try:
+            client = self._get_client()
+            collection_name = (
+                f"knowledge_{self.collection_name}"
+                if self.collection_name
+                else "knowledge"
+            )
+            await client.adelete_collection(collection_name=collection_name)
+        except Exception as e:
+            logging.error(
+                f"Error during knowledge reset: {e!s}\n{traceback.format_exc()}"
+            )

lib/crewai/src/crewai/llm.py

@@ -57,7 +57,12 @@ if TYPE_CHECKING:
     from litellm.litellm_core_utils.get_supported_openai_params import (
         get_supported_openai_params,
     )
-    from litellm.types.utils import ChatCompletionDeltaToolCall, Choices, ModelResponse
+    from litellm.types.utils import (
+        ChatCompletionDeltaToolCall,
+        Choices,
+        Function,
+        ModelResponse,
+    )
     from litellm.utils import supports_response_schema
 
     from crewai.agent.core import Agent
@@ -73,7 +78,12 @@ try:
     from litellm.litellm_core_utils.get_supported_openai_params import (
         get_supported_openai_params,
     )
-    from litellm.types.utils import ChatCompletionDeltaToolCall, Choices, ModelResponse
+    from litellm.types.utils import (
+        ChatCompletionDeltaToolCall,
+        Choices,
+        Function,
+        ModelResponse,
+    )
     from litellm.utils import supports_response_schema
 
     LITELLM_AVAILABLE = True
@@ -84,6 +94,7 @@ except ImportError:
     ContextWindowExceededError = Exception  # type: ignore
     get_supported_openai_params = None  # type: ignore
     ChatCompletionDeltaToolCall = None  # type: ignore
+    Function = None  # type: ignore
     ModelResponse = None  # type: ignore
     supports_response_schema = None  # type: ignore
     CustomLogger = None  # type: ignore
@@ -406,46 +417,100 @@ class LLM(BaseLLM):
         instance.is_litellm = True
         return instance
 
+    @classmethod
+    def _matches_provider_pattern(cls, model: str, provider: str) -> bool:
+        """Check if a model name matches provider-specific patterns.
+
+        This allows supporting models that aren't in the hardcoded constants list,
+        including "latest" versions and new models that follow provider naming conventions.
+
+        Args:
+            model: The model name to check
+            provider: The provider to check against (canonical name)
+
+        Returns:
+            True if the model matches the provider's naming pattern, False otherwise
+        """
+        model_lower = model.lower()
+
+        if provider == "openai":
+            return any(
+                model_lower.startswith(prefix)
+                for prefix in ["gpt-", "o1", "o3", "o4", "whisper-"]
+            )
+
+        if provider == "anthropic" or provider == "claude":
+            return any(
+                model_lower.startswith(prefix) for prefix in ["claude-", "anthropic."]
+            )
+
+        if provider == "gemini" or provider == "google":
+            return any(
+                model_lower.startswith(prefix)
+                for prefix in ["gemini-", "gemma-", "learnlm-"]
+            )
+
+        if provider == "bedrock":
+            return "." in model_lower
+
+        if provider == "azure":
+            return any(
+                model_lower.startswith(prefix)
+                for prefix in ["gpt-", "gpt-35-", "o1", "o3", "o4", "azure-"]
+            )
+
+        return False
+
     @classmethod
     def _validate_model_in_constants(cls, model: str, provider: str) -> bool:
-        """Validate if a model name exists in the provider's constants.
+        """Validate if a model name exists in the provider's constants or matches provider patterns.
+
+        This method first checks the hardcoded constants list for known models.
+        If not found, it falls back to pattern matching to support new models,
+        "latest" versions, and models that follow provider naming conventions.
 
         Args:
             model: The model name to validate
             provider: The provider to check against (canonical name)
 
         Returns:
-            True if the model exists in the provider's constants, False otherwise
+            True if the model exists in constants or matches provider patterns, False otherwise
         """
-        if provider == "openai":
-            return model in OPENAI_MODELS
+        if provider == "openai" and model in OPENAI_MODELS:
+            return True
 
-        if provider == "anthropic" or provider == "claude":
-            return model in ANTHROPIC_MODELS
+        if (
+            provider == "anthropic" or provider == "claude"
+        ) and model in ANTHROPIC_MODELS:
+            return True
 
-        if provider == "gemini":
-            return model in GEMINI_MODELS
+        if (provider == "gemini" or provider == "google") and model in GEMINI_MODELS:
+            return True
 
-        if provider == "bedrock":
-            return model in BEDROCK_MODELS
+        if provider == "bedrock" and model in BEDROCK_MODELS:
+            return True
 
         if provider == "azure":
             # azure does not provide a list of available models, determine a better way to handle this
             return True
 
-        return False
+        # Fallback to pattern matching for models not in constants
+        return cls._matches_provider_pattern(model, provider)
 
     @classmethod
     def _infer_provider_from_model(cls, model: str) -> str:
         """Infer the provider from the model name.
 
+        This method first checks the hardcoded constants list for known models.
+        If not found, it uses pattern matching to infer the provider from model name patterns.
+        This allows supporting new models and "latest" versions without hardcoding.
+
         Args:
             model: The model name without provider prefix
 
         Returns:
             The inferred provider name, defaults to "openai"
         """
-
         if model in OPENAI_MODELS:
             return "openai"
 
@@ -556,7 +621,9 @@ class LLM(BaseLLM):
         self.callbacks = callbacks
         self.context_window_size = 0
         self.reasoning_effort = reasoning_effort
-        self.additional_params = kwargs
+        self.additional_params = {
+            k: v for k, v in kwargs.items() if k not in ("is_litellm", "provider")
+        }
         self.is_anthropic = self._is_anthropic_model(model)
         self.stream = stream
         self.interceptor = interceptor
@@ -1150,6 +1217,281 @@ class LLM(BaseLLM):
         )
         return text_response
 
+    async def _ahandle_non_streaming_response(
+        self,
+        params: dict[str, Any],
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Task | None = None,
+        from_agent: Agent | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Handle an async non-streaming response from the LLM.
+
+        Args:
+            params: Parameters for the completion call
+            callbacks: Optional list of callback functions
+            available_functions: Dict of available functions
+            from_task: Optional Task that invoked the LLM
+            from_agent: Optional Agent that invoked the LLM
+            response_model: Optional Response model
+
+        Returns:
+            str: The response text
+        """
+        if response_model and self.is_litellm:
+            from crewai.utilities.internal_instructor import InternalInstructor
+
+            messages = params.get("messages", [])
+            if not messages:
+                raise ValueError("Messages are required when using response_model")
+
+            combined_content = "\n\n".join(
+                f"{msg['role'].upper()}: {msg['content']}" for msg in messages
+            )
+
+            instructor_instance = InternalInstructor(
+                content=combined_content,
+                model=response_model,
+                llm=self,
+            )
+            result = instructor_instance.to_pydantic()
+            structured_response = result.model_dump_json()
+            self._handle_emit_call_events(
+                response=structured_response,
+                call_type=LLMCallType.LLM_CALL,
+                from_task=from_task,
+                from_agent=from_agent,
+                messages=params["messages"],
+            )
+            return structured_response
+
+        try:
+            if response_model:
+                params["response_model"] = response_model
+            response = await litellm.acompletion(**params)
+
+        except ContextWindowExceededError as e:
+            raise LLMContextLengthExceededError(str(e)) from e
+
+        if response_model is not None:
+            if isinstance(response, BaseModel):
+                structured_response = response.model_dump_json()
+                self._handle_emit_call_events(
+                    response=structured_response,
+                    call_type=LLMCallType.LLM_CALL,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                    messages=params["messages"],
+                )
+                return structured_response
+
+        response_message = cast(Choices, cast(ModelResponse, response).choices)[
+            0
+        ].message
+        text_response = response_message.content or ""
+
+        if callbacks and len(callbacks) > 0:
+            for callback in callbacks:
+                if hasattr(callback, "log_success_event"):
+                    usage_info = getattr(response, "usage", None)
+                    if usage_info:
+                        callback.log_success_event(
+                            kwargs=params,
+                            response_obj={"usage": usage_info},
+                            start_time=0,
+                            end_time=0,
+                        )
+
+        tool_calls = getattr(response_message, "tool_calls", [])
+
+        if (not tool_calls or not available_functions) and text_response:
+            self._handle_emit_call_events(
+                response=text_response,
+                call_type=LLMCallType.LLM_CALL,
+                from_task=from_task,
+                from_agent=from_agent,
+                messages=params["messages"],
+            )
+            return text_response
+
+        if tool_calls and not available_functions and not text_response:
+            return tool_calls
+
+        tool_result = self._handle_tool_call(
+            tool_calls, available_functions, from_task, from_agent
+        )
+        if tool_result is not None:
+            return tool_result
+
+        self._handle_emit_call_events(
+            response=text_response,
+            call_type=LLMCallType.LLM_CALL,
+            from_task=from_task,
+            from_agent=from_agent,
+            messages=params["messages"],
+        )
+        return text_response
+
+    async def _ahandle_streaming_response(
+        self,
+        params: dict[str, Any],
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Task | None = None,
+        from_agent: Agent | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> Any:
+        """Handle an async streaming response from the LLM.
+
+        Args:
+            params: Parameters for the completion call
+            callbacks: Optional list of callback functions
+            available_functions: Dict of available functions
+            from_task: Optional task object
+            from_agent: Optional agent object
+            response_model: Optional response model
+
+        Returns:
+            str: The complete response text
+        """
+        full_response = ""
+        chunk_count = 0
+        usage_info = None
+
+        accumulated_tool_args: defaultdict[int, AccumulatedToolArgs] = defaultdict(
+            AccumulatedToolArgs
+        )
+
+        params["stream"] = True
+        params["stream_options"] = {"include_usage": True}
+
+        try:
+            async for chunk in await litellm.acompletion(**params):
+                chunk_count += 1
+                chunk_content = None
+
+                try:
+                    choices = None
+                    if isinstance(chunk, dict) and "choices" in chunk:
+                        choices = chunk["choices"]
+                    elif hasattr(chunk, "choices"):
+                        if not isinstance(chunk.choices, type):
+                            choices = chunk.choices
+
+                    if hasattr(chunk, "usage") and chunk.usage is not None:
+                        usage_info = chunk.usage
+
+                    if choices and len(choices) > 0:
+                        first_choice = choices[0]
+                        delta = None
+
+                        if isinstance(first_choice, dict):
+                            delta = first_choice.get("delta", {})
+                        elif hasattr(first_choice, "delta"):
+                            delta = first_choice.delta
+
+                        if delta:
+                            if isinstance(delta, dict):
+                                chunk_content = delta.get("content")
+                            elif hasattr(delta, "content"):
+                                chunk_content = delta.content
+
+                            tool_calls: list[ChatCompletionDeltaToolCall] | None = None
+                            if isinstance(delta, dict):
+                                tool_calls = delta.get("tool_calls")
+                            elif hasattr(delta, "tool_calls"):
+                                tool_calls = delta.tool_calls
+
+                            if tool_calls:
+                                for tool_call in tool_calls:
+                                    idx = tool_call.index
+                                    if tool_call.function:
+                                        if tool_call.function.name:
+                                            accumulated_tool_args[
+                                                idx
+                                            ].function.name = tool_call.function.name
+                                        if tool_call.function.arguments:
+                                            accumulated_tool_args[
+                                                idx
+                                            ].function.arguments += (
+                                                tool_call.function.arguments
+                                            )
+
+                except (AttributeError, KeyError, IndexError, TypeError):
+                    pass
+
+                if chunk_content:
+                    full_response += chunk_content
+                    crewai_event_bus.emit(
+                        self,
+                        event=LLMStreamChunkEvent(
+                            chunk=chunk_content,
+                            from_task=from_task,
+                            from_agent=from_agent,
+                        ),
+                    )
+
+            if callbacks and len(callbacks) > 0 and usage_info:
+                for callback in callbacks:
+                    if hasattr(callback, "log_success_event"):
+                        callback.log_success_event(
+                            kwargs=params,
+                            response_obj={"usage": usage_info},
+                            start_time=0,
+                            end_time=0,
+                        )
+
+            if accumulated_tool_args and available_functions:
+                # Convert accumulated tool args to ChatCompletionDeltaToolCall objects
+                tool_calls_list: list[ChatCompletionDeltaToolCall] = [
+                    ChatCompletionDeltaToolCall(
+                        index=idx,
+                        function=Function(
+                            name=tool_arg.function.name,
+                            arguments=tool_arg.function.arguments,
+                        ),
+                    )
+                    for idx, tool_arg in accumulated_tool_args.items()
+                    if tool_arg.function.name
+                ]
+
+                if tool_calls_list:
+                    result = self._handle_streaming_tool_calls(
+                        tool_calls=tool_calls_list,
+                        accumulated_tool_args=accumulated_tool_args,
+                        available_functions=available_functions,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                    )
+                    if result is not None:
+                        return result
+
+            self._handle_emit_call_events(
+                response=full_response,
+                call_type=LLMCallType.LLM_CALL,
+                from_task=from_task,
+                from_agent=from_agent,
+                messages=params.get("messages"),
+            )
+            return full_response
+
+        except ContextWindowExceededError as e:
+            raise LLMContextLengthExceededError(str(e)) from e
+        except Exception:
+            if chunk_count == 0:
+                raise
+            if full_response:
+                self._handle_emit_call_events(
+                    response=full_response,
+                    call_type=LLMCallType.LLM_CALL,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                    messages=params.get("messages"),
+                )
+                return full_response
+            raise
+
     def _handle_tool_call(
         self,
         tool_calls: list[Any],
@@ -1367,6 +1709,128 @@ class LLM(BaseLLM):
                 )
                 raise
 
+    async def acall(
+        self,
+        messages: str | list[LLMMessage],
+        tools: list[dict[str, BaseTool]] | None = None,
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Task | None = None,
+        from_agent: Agent | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Async high-level LLM call method.
+
+        Args:
+            messages: Input messages for the LLM.
+                     Can be a string or list of message dictionaries.
+                     If string, it will be converted to a single user message.
+                     If list, each dict must have 'role' and 'content' keys.
+            tools: Optional list of tool schemas for function calling.
+                  Each tool should define its name, description, and parameters.
+            callbacks: Optional list of callback functions to be executed
+                      during and after the LLM call.
+            available_functions: Optional dict mapping function names to callables
+                               that can be invoked by the LLM.
+            from_task: Optional Task that invoked the LLM
+            from_agent: Optional Agent that invoked the LLM
+            response_model: Optional Model that contains a pydantic response model.
+
+        Returns:
+            Union[str, Any]: Either a text response from the LLM (str) or
+                           the result of a tool function call (Any).
+
+        Raises:
+            TypeError: If messages format is invalid
+            ValueError: If response format is not supported
+            LLMContextLengthExceededError: If input exceeds model's context limit
+        """
+        crewai_event_bus.emit(
+            self,
+            event=LLMCallStartedEvent(
+                messages=messages,
+                tools=tools,
+                callbacks=callbacks,
+                available_functions=available_functions,
+                from_task=from_task,
+                from_agent=from_agent,
+                model=self.model,
+            ),
+        )
+
+        self._validate_call_params()
+
+        if isinstance(messages, str):
+            messages = [{"role": "user", "content": messages}]
+
+        if "o1" in self.model.lower():
+            for message in messages:
+                if message.get("role") == "system":
+                    msg_role: Literal["assistant"] = "assistant"
+                    message["role"] = msg_role
+
+        with suppress_warnings():
+            if callbacks and len(callbacks) > 0:
+                self.set_callbacks(callbacks)
+            try:
+                params = self._prepare_completion_params(messages, tools)
+
+                if self.stream:
+                    return await self._ahandle_streaming_response(
+                        params=params,
+                        callbacks=callbacks,
+                        available_functions=available_functions,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                        response_model=response_model,
+                    )
+
+                return await self._ahandle_non_streaming_response(
+                    params=params,
+                    callbacks=callbacks,
+                    available_functions=available_functions,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                    response_model=response_model,
+                )
+            except LLMContextLengthExceededError:
+                raise
+            except Exception as e:
+                unsupported_stop = "Unsupported parameter" in str(
+                    e
+                ) and "'stop'" in str(e)
+
+                if unsupported_stop:
+                    if (
+                        "additional_drop_params" in self.additional_params
+                        and isinstance(
+                            self.additional_params["additional_drop_params"], list
+                        )
+                    ):
+                        self.additional_params["additional_drop_params"].append("stop")
+                    else:
+                        self.additional_params = {"additional_drop_params": ["stop"]}
+
+                    logging.info("Retrying LLM call without the unsupported 'stop'")
+
+                    return await self.acall(
+                        messages,
+                        tools=tools,
+                        callbacks=callbacks,
+                        available_functions=available_functions,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                        response_model=response_model,
+                    )
+
+                crewai_event_bus.emit(
+                    self,
+                    event=LLMCallFailedEvent(
+                        error=str(e), from_task=from_task, from_agent=from_agent
+                    ),
+                )
+                raise
+
     def _handle_emit_call_events(
         self,
         response: Any,
@@ -1699,12 +2163,14 @@ class LLM(BaseLLM):
             max_tokens=self.max_tokens,
             presence_penalty=self.presence_penalty,
             frequency_penalty=self.frequency_penalty,
-            logit_bias=copy.deepcopy(self.logit_bias, memo)
-            if self.logit_bias
-            else None,
-            response_format=copy.deepcopy(self.response_format, memo)
-            if self.response_format
-            else None,
+            logit_bias=(
+                copy.deepcopy(self.logit_bias, memo) if self.logit_bias else None
+            ),
+            response_format=(
+                copy.deepcopy(self.response_format, memo)
+                if self.response_format
+                else None
+            ),
             seed=self.seed,
             logprobs=self.logprobs,
             top_logprobs=self.top_logprobs,

lib/crewai/src/crewai/llms/base_llm.py

@@ -158,6 +158,44 @@ class BaseLLM(ABC):
             RuntimeError: If the LLM request fails for other reasons.
         """
 
+    async def acall(
+        self,
+        messages: str | list[LLMMessage],
+        tools: list[dict[str, BaseTool]] | None = None,
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Task | None = None,
+        from_agent: Agent | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Call the LLM with the given messages.
+
+        Args:
+            messages: Input messages for the LLM.
+                     Can be a string or list of message dictionaries.
+                     If string, it will be converted to a single user message.
+                     If list, each dict must have 'role' and 'content' keys.
+            tools: Optional list of tool schemas for function calling.
+                  Each tool should define its name, description, and parameters.
+            callbacks: Optional list of callback functions to be executed
+                      during and after the LLM call.
+            available_functions: Optional dict mapping function names to callables
+                               that can be invoked by the LLM.
+            from_task: Optional task caller to be used for the LLM call.
+            from_agent: Optional agent caller to be used for the LLM call.
+            response_model: Optional response model to be used for the LLM call.
+
+        Returns:
+            Either a text response from the LLM (str) or
+            the result of a tool function call (Any).
+
+        Raises:
+            ValueError: If the messages format is invalid.
+            TimeoutError: If the LLM request times out.
+            RuntimeError: If the LLM request fails for other reasons.
+        """
+        raise NotImplementedError
+
     def _convert_tools_for_interference(
         self, tools: list[dict[str, BaseTool]]
     ) -> list[dict[str, BaseTool]]:

lib/crewai/src/crewai/llms/constants.py

@@ -182,6 +182,8 @@ OPENAI_MODELS: list[OpenAIModels] = [
 
 
 AnthropicModels: TypeAlias = Literal[
+    "claude-opus-4-5-20251101",
+    "claude-opus-4-5",
     "claude-3-7-sonnet-latest",
     "claude-3-7-sonnet-20250219",
     "claude-3-5-haiku-latest",
@@ -208,6 +210,8 @@ AnthropicModels: TypeAlias = Literal[
     "claude-3-haiku-20240307",
 ]
 ANTHROPIC_MODELS: list[AnthropicModels] = [
+    "claude-opus-4-5-20251101",
+    "claude-opus-4-5",
     "claude-3-7-sonnet-latest",
     "claude-3-7-sonnet-20250219",
     "claude-3-5-haiku-latest",
@@ -252,6 +256,7 @@ GeminiModels: TypeAlias = Literal[
     "gemini-2.5-flash-preview-tts",
     "gemini-2.5-pro-preview-tts",
     "gemini-2.5-computer-use-preview-10-2025",
+    "gemini-2.5-pro-exp-03-25",
     "gemini-2.0-flash",
     "gemini-2.0-flash-001",
     "gemini-2.0-flash-exp",
@@ -305,6 +310,7 @@ GEMINI_MODELS: list[GeminiModels] = [
     "gemini-2.5-flash-preview-tts",
     "gemini-2.5-pro-preview-tts",
     "gemini-2.5-computer-use-preview-10-2025",
+    "gemini-2.5-pro-exp-03-25",
     "gemini-2.0-flash",
     "gemini-2.0-flash-001",
     "gemini-2.0-flash-exp",
@@ -452,6 +458,7 @@ BedrockModels: TypeAlias = Literal[
     "anthropic.claude-3-sonnet-20240229-v1:0:28k",
     "anthropic.claude-haiku-4-5-20251001-v1:0",
     "anthropic.claude-instant-v1:2:100k",
+    "anthropic.claude-opus-4-5-20251101-v1:0",
     "anthropic.claude-opus-4-1-20250805-v1:0",
     "anthropic.claude-opus-4-20250514-v1:0",
     "anthropic.claude-sonnet-4-20250514-v1:0",
@@ -524,6 +531,7 @@ BEDROCK_MODELS: list[BedrockModels] = [
     "anthropic.claude-3-sonnet-20240229-v1:0:28k",
     "anthropic.claude-haiku-4-5-20251001-v1:0",
     "anthropic.claude-instant-v1:2:100k",
+    "anthropic.claude-opus-4-5-20251101-v1:0",
     "anthropic.claude-opus-4-1-20250805-v1:0",
     "anthropic.claude-opus-4-20250514-v1:0",
     "anthropic.claude-sonnet-4-20250514-v1:0",

lib/crewai/src/crewai/llms/providers/anthropic/completion.py

@@ -9,7 +9,7 @@ from pydantic import BaseModel
 
 from crewai.events.types.llm_events import LLMCallType
 from crewai.llms.base_llm import BaseLLM
-from crewai.llms.hooks.transport import HTTPTransport
+from crewai.llms.hooks.transport import AsyncHTTPTransport, HTTPTransport
 from crewai.utilities.agent_utils import is_context_length_exceeded
 from crewai.utilities.exceptions.context_window_exceeding_exception import (
     LLMContextLengthExceededError,
@@ -21,7 +21,7 @@ if TYPE_CHECKING:
     from crewai.llms.hooks.base import BaseInterceptor
 
 try:
-    from anthropic import Anthropic
+    from anthropic import Anthropic, AsyncAnthropic
     from anthropic.types import Message
     from anthropic.types.tool_use_block import ToolUseBlock
     import httpx
@@ -84,15 +84,20 @@ class AnthropicCompletion(BaseLLM):
 
         self.client = Anthropic(**self._get_client_params())
 
+        async_client_params = self._get_client_params()
+        if self.interceptor:
+            async_transport = AsyncHTTPTransport(interceptor=self.interceptor)
+            async_http_client = httpx.AsyncClient(transport=async_transport)
+            async_client_params["http_client"] = async_http_client
+
+        self.async_client = AsyncAnthropic(**async_client_params)
+
         # Store completion parameters
         self.max_tokens = max_tokens
         self.top_p = top_p
         self.stream = stream
         self.stop_sequences = stop_sequences or []
-
-        # Model-specific settings
-        self.is_claude_3 = "claude-3" in model.lower()
-        self.supports_tools = self.is_claude_3  # Claude 3+ supports tool use
+        self.supports_tools = True
 
     @property
     def stop(self) -> list[str]:
@@ -213,6 +218,72 @@ class AnthropicCompletion(BaseLLM):
             )
             raise
 
+    async def acall(
+        self,
+        messages: str | list[LLMMessage],
+        tools: list[dict[str, Any]] | None = None,
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Async call to Anthropic messages API.
+
+        Args:
+            messages: Input messages for the chat completion
+            tools: List of tool/function definitions
+            callbacks: Callback functions (not used in native implementation)
+            available_functions: Available functions for tool calling
+            from_task: Task that initiated the call
+            from_agent: Agent that initiated the call
+
+        Returns:
+            Chat completion response or tool call result
+        """
+        try:
+            self._emit_call_started_event(
+                messages=messages,
+                tools=tools,
+                callbacks=callbacks,
+                available_functions=available_functions,
+                from_task=from_task,
+                from_agent=from_agent,
+            )
+
+            formatted_messages, system_message = self._format_messages_for_anthropic(
+                messages
+            )
+
+            completion_params = self._prepare_completion_params(
+                formatted_messages, system_message, tools
+            )
+
+            if self.stream:
+                return await self._ahandle_streaming_completion(
+                    completion_params,
+                    available_functions,
+                    from_task,
+                    from_agent,
+                    response_model,
+                )
+
+            return await self._ahandle_completion(
+                completion_params,
+                available_functions,
+                from_task,
+                from_agent,
+                response_model,
+            )
+
+        except Exception as e:
+            error_msg = f"Anthropic API call failed: {e!s}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise
+
     def _prepare_completion_params(
         self,
         messages: list[LLMMessage],
@@ -546,7 +617,7 @@ class AnthropicCompletion(BaseLLM):
             # Execute the tool
             result = self._handle_tool_execution(
                 function_name=function_name,
-                function_args=function_args,  # type: ignore
+                function_args=function_args,
                 available_functions=available_functions,
                 from_task=from_task,
                 from_agent=from_agent,
@@ -626,6 +697,275 @@ class AnthropicCompletion(BaseLLM):
                 return tool_results[0]["content"]
             raise e
 
+    async def _ahandle_completion(
+        self,
+        params: dict[str, Any],
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Handle non-streaming async message completion."""
+        if response_model:
+            structured_tool = {
+                "name": "structured_output",
+                "description": "Returns structured data according to the schema",
+                "input_schema": response_model.model_json_schema(),
+            }
+
+            params["tools"] = [structured_tool]
+            params["tool_choice"] = {"type": "tool", "name": "structured_output"}
+
+        try:
+            response: Message = await self.async_client.messages.create(**params)
+
+        except Exception as e:
+            if is_context_length_exceeded(e):
+                logging.error(f"Context window exceeded: {e}")
+                raise LLMContextLengthExceededError(str(e)) from e
+            raise e from e
+
+        usage = self._extract_anthropic_token_usage(response)
+        self._track_token_usage_internal(usage)
+
+        if response_model and response.content:
+            tool_uses = [
+                block for block in response.content if isinstance(block, ToolUseBlock)
+            ]
+            if tool_uses and tool_uses[0].name == "structured_output":
+                structured_data = tool_uses[0].input
+                structured_json = json.dumps(structured_data)
+
+                self._emit_call_completed_event(
+                    response=structured_json,
+                    call_type=LLMCallType.LLM_CALL,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                    messages=params["messages"],
+                )
+
+                return structured_json
+
+        if response.content and available_functions:
+            tool_uses = [
+                block for block in response.content if isinstance(block, ToolUseBlock)
+            ]
+
+            if tool_uses:
+                return await self._ahandle_tool_use_conversation(
+                    response,
+                    tool_uses,
+                    params,
+                    available_functions,
+                    from_task,
+                    from_agent,
+                )
+
+        content = ""
+        if response.content:
+            for content_block in response.content:
+                if hasattr(content_block, "text"):
+                    content += content_block.text
+
+        content = self._apply_stop_words(content)
+
+        self._emit_call_completed_event(
+            response=content,
+            call_type=LLMCallType.LLM_CALL,
+            from_task=from_task,
+            from_agent=from_agent,
+            messages=params["messages"],
+        )
+
+        if usage.get("total_tokens", 0) > 0:
+            logging.info(f"Anthropic API usage: {usage}")
+
+        return content
+
+    async def _ahandle_streaming_completion(
+        self,
+        params: dict[str, Any],
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str:
+        """Handle async streaming message completion."""
+        if response_model:
+            structured_tool = {
+                "name": "structured_output",
+                "description": "Returns structured data according to the schema",
+                "input_schema": response_model.model_json_schema(),
+            }
+
+            params["tools"] = [structured_tool]
+            params["tool_choice"] = {"type": "tool", "name": "structured_output"}
+
+        full_response = ""
+
+        stream_params = {k: v for k, v in params.items() if k != "stream"}
+
+        async with self.async_client.messages.stream(**stream_params) as stream:
+            async for event in stream:
+                if hasattr(event, "delta") and hasattr(event.delta, "text"):
+                    text_delta = event.delta.text
+                    full_response += text_delta
+                    self._emit_stream_chunk_event(
+                        chunk=text_delta,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                    )
+
+            final_message: Message = await stream.get_final_message()
+
+        usage = self._extract_anthropic_token_usage(final_message)
+        self._track_token_usage_internal(usage)
+
+        if response_model and final_message.content:
+            tool_uses = [
+                block
+                for block in final_message.content
+                if isinstance(block, ToolUseBlock)
+            ]
+            if tool_uses and tool_uses[0].name == "structured_output":
+                structured_data = tool_uses[0].input
+                structured_json = json.dumps(structured_data)
+
+                self._emit_call_completed_event(
+                    response=structured_json,
+                    call_type=LLMCallType.LLM_CALL,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                    messages=params["messages"],
+                )
+
+                return structured_json
+
+        if final_message.content and available_functions:
+            tool_uses = [
+                block
+                for block in final_message.content
+                if isinstance(block, ToolUseBlock)
+            ]
+
+            if tool_uses:
+                return await self._ahandle_tool_use_conversation(
+                    final_message,
+                    tool_uses,
+                    params,
+                    available_functions,
+                    from_task,
+                    from_agent,
+                )
+
+        full_response = self._apply_stop_words(full_response)
+
+        self._emit_call_completed_event(
+            response=full_response,
+            call_type=LLMCallType.LLM_CALL,
+            from_task=from_task,
+            from_agent=from_agent,
+            messages=params["messages"],
+        )
+
+        return full_response
+
+    async def _ahandle_tool_use_conversation(
+        self,
+        initial_response: Message,
+        tool_uses: list[ToolUseBlock],
+        params: dict[str, Any],
+        available_functions: dict[str, Any],
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+    ) -> str:
+        """Handle the complete async tool use conversation flow.
+
+        This implements the proper Anthropic tool use pattern:
+        1. Claude requests tool use
+        2. We execute the tools
+        3. We send tool results back to Claude
+        4. Claude processes results and generates final response
+        """
+        tool_results = []
+
+        for tool_use in tool_uses:
+            function_name = tool_use.name
+            function_args = tool_use.input
+
+            result = self._handle_tool_execution(
+                function_name=function_name,
+                function_args=function_args,
+                available_functions=available_functions,
+                from_task=from_task,
+                from_agent=from_agent,
+            )
+
+            tool_result = {
+                "type": "tool_result",
+                "tool_use_id": tool_use.id,
+                "content": str(result)
+                if result is not None
+                else "Tool execution completed",
+            }
+            tool_results.append(tool_result)
+
+        follow_up_params = params.copy()
+
+        assistant_message = {"role": "assistant", "content": initial_response.content}
+
+        user_message = {"role": "user", "content": tool_results}
+
+        follow_up_params["messages"] = params["messages"] + [
+            assistant_message,
+            user_message,
+        ]
+
+        try:
+            final_response: Message = await self.async_client.messages.create(
+                **follow_up_params
+            )
+
+            follow_up_usage = self._extract_anthropic_token_usage(final_response)
+            self._track_token_usage_internal(follow_up_usage)
+
+            final_content = ""
+            if final_response.content:
+                for content_block in final_response.content:
+                    if hasattr(content_block, "text"):
+                        final_content += content_block.text
+
+            final_content = self._apply_stop_words(final_content)
+
+            self._emit_call_completed_event(
+                response=final_content,
+                call_type=LLMCallType.LLM_CALL,
+                from_task=from_task,
+                from_agent=from_agent,
+                messages=follow_up_params["messages"],
+            )
+
+            total_usage = {
+                "input_tokens": follow_up_usage.get("input_tokens", 0),
+                "output_tokens": follow_up_usage.get("output_tokens", 0),
+                "total_tokens": follow_up_usage.get("total_tokens", 0),
+            }
+
+            if total_usage.get("total_tokens", 0) > 0:
+                logging.info(f"Anthropic API tool conversation usage: {total_usage}")
+
+            return final_content
+
+        except Exception as e:
+            if is_context_length_exceeded(e):
+                logging.error(f"Context window exceeded in tool follow-up: {e}")
+                raise LLMContextLengthExceededError(str(e)) from e
+
+            logging.error(f"Tool follow-up conversation failed: {e}")
+            if tool_results:
+                return tool_results[0]["content"]
+            raise e
+
     def supports_function_calling(self) -> bool:
         """Check if the model supports function calling."""
         return self.supports_tools

lib/crewai/src/crewai/llms/providers/azure/completion.py

@@ -6,8 +6,10 @@ import os
 from typing import TYPE_CHECKING, Any
 
 from pydantic import BaseModel
+from typing_extensions import Self
 
 from crewai.utilities.agent_utils import is_context_length_exceeded
+from crewai.utilities.converter import generate_model_description
 from crewai.utilities.exceptions.context_window_exceeding_exception import (
     LLMContextLengthExceededError,
 )
@@ -23,9 +25,13 @@ try:
     from azure.ai.inference import (
         ChatCompletionsClient,
     )
+    from azure.ai.inference.aio import (
+        ChatCompletionsClient as AsyncChatCompletionsClient,
+    )
     from azure.ai.inference.models import (
         ChatCompletions,
         ChatCompletionsToolCall,
+        JsonSchemaFormat,
         StreamingChatCompletionsUpdate,
     )
     from azure.core.credentials import (
@@ -133,6 +139,8 @@ class AzureCompletion(BaseLLM):
 
         self.client = ChatCompletionsClient(**client_kwargs)  # type: ignore[arg-type]
 
+        self.async_client = AsyncChatCompletionsClient(**client_kwargs)  # type: ignore[arg-type]
+
         self.top_p = top_p
         self.frequency_penalty = frequency_penalty
         self.presence_penalty = presence_penalty
@@ -256,6 +264,88 @@ class AzureCompletion(BaseLLM):
             )
             raise
 
+    async def acall(
+        self,
+        messages: str | list[LLMMessage],
+        tools: list[dict[str, BaseTool]] | None = None,
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Call Azure AI Inference chat completions API asynchronously.
+
+        Args:
+            messages: Input messages for the chat completion
+            tools: List of tool/function definitions
+            callbacks: Callback functions (not used in native implementation)
+            available_functions: Available functions for tool calling
+            from_task: Task that initiated the call
+            from_agent: Agent that initiated the call
+            response_model: Pydantic model for structured output
+
+        Returns:
+            Chat completion response or tool call result
+        """
+        try:
+            self._emit_call_started_event(
+                messages=messages,
+                tools=tools,
+                callbacks=callbacks,
+                available_functions=available_functions,
+                from_task=from_task,
+                from_agent=from_agent,
+            )
+
+            formatted_messages = self._format_messages_for_azure(messages)
+
+            completion_params = self._prepare_completion_params(
+                formatted_messages, tools, response_model
+            )
+
+            if self.stream:
+                return await self._ahandle_streaming_completion(
+                    completion_params,
+                    available_functions,
+                    from_task,
+                    from_agent,
+                    response_model,
+                )
+
+            return await self._ahandle_completion(
+                completion_params,
+                available_functions,
+                from_task,
+                from_agent,
+                response_model,
+            )
+
+        except HttpResponseError as e:
+            if e.status_code == 401:
+                error_msg = "Azure authentication failed. Check your API key."
+            elif e.status_code == 404:
+                error_msg = (
+                    f"Azure endpoint not found. Check endpoint URL: {self.endpoint}"
+                )
+            elif e.status_code == 429:
+                error_msg = "Azure API rate limit exceeded. Please retry later."
+            else:
+                error_msg = f"Azure API HTTP error: {e.status_code} - {e.message}"
+
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise
+        except Exception as e:
+            error_msg = f"Azure API call failed: {e!s}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise
+
     def _prepare_completion_params(
         self,
         messages: list[LLMMessage],
@@ -278,13 +368,16 @@ class AzureCompletion(BaseLLM):
         }
 
         if response_model and self.is_openai_model:
-            params["response_format"] = {
-                "type": "json_schema",
-                "json_schema": {
-                    "name": response_model.__name__,
-                    "schema": response_model.model_json_schema(),
-                },
-            }
+            model_description = generate_model_description(response_model)
+            json_schema_info = model_description["json_schema"]
+            json_schema_name = json_schema_info["name"]
+
+            params["response_format"] = JsonSchemaFormat(
+                name=json_schema_name,
+                schema=json_schema_info["schema"],
+                description=f"Schema for {json_schema_name}",
+                strict=json_schema_info["strict"],
+            )
 
         # Only include model parameter for non-Azure OpenAI endpoints
         # Azure OpenAI endpoints have the deployment name in the URL
@@ -311,8 +404,8 @@ class AzureCompletion(BaseLLM):
             params["tool_choice"] = "auto"
 
         additional_params = self.additional_params
-        additional_drop_params = additional_params.get('additional_drop_params')
-        drop_params = additional_params.get('drop_params')
+        additional_drop_params = additional_params.get("additional_drop_params")
+        drop_params = additional_params.get("drop_params")
 
         if drop_params and isinstance(additional_drop_params, list):
             for drop_param in additional_drop_params:
@@ -551,6 +644,170 @@ class AzureCompletion(BaseLLM):
 
         return full_response
 
+    async def _ahandle_completion(
+        self,
+        params: dict[str, Any],
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Handle non-streaming chat completion asynchronously."""
+        try:
+            response: ChatCompletions = await self.async_client.complete(**params)
+
+            if not response.choices:
+                raise ValueError("No choices returned from Azure API")
+
+            choice = response.choices[0]
+            message = choice.message
+
+            usage = self._extract_azure_token_usage(response)
+            self._track_token_usage_internal(usage)
+
+            if response_model and self.is_openai_model:
+                content = message.content or ""
+                try:
+                    structured_data = response_model.model_validate_json(content)
+                    structured_json = structured_data.model_dump_json()
+
+                    self._emit_call_completed_event(
+                        response=structured_json,
+                        call_type=LLMCallType.LLM_CALL,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                        messages=params["messages"],
+                    )
+
+                    return structured_json
+                except Exception as e:
+                    error_msg = f"Failed to validate structured output with model {response_model.__name__}: {e}"
+                    logging.error(error_msg)
+                    raise ValueError(error_msg) from e
+
+            if message.tool_calls and available_functions:
+                tool_call = message.tool_calls[0]  # Handle first tool call
+                if isinstance(tool_call, ChatCompletionsToolCall):
+                    function_name = tool_call.function.name
+
+                    try:
+                        function_args = json.loads(tool_call.function.arguments)
+                    except json.JSONDecodeError as e:
+                        logging.error(f"Failed to parse tool arguments: {e}")
+                        function_args = {}
+
+                    result = self._handle_tool_execution(
+                        function_name=function_name,
+                        function_args=function_args,
+                        available_functions=available_functions,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                    )
+
+                    if result is not None:
+                        return result
+
+            content = message.content or ""
+
+            content = self._apply_stop_words(content)
+
+            self._emit_call_completed_event(
+                response=content,
+                call_type=LLMCallType.LLM_CALL,
+                from_task=from_task,
+                from_agent=from_agent,
+                messages=params["messages"],
+            )
+
+        except Exception as e:
+            if is_context_length_exceeded(e):
+                logging.error(f"Context window exceeded: {e}")
+                raise LLMContextLengthExceededError(str(e)) from e
+
+            error_msg = f"Azure API call failed: {e!s}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise e
+
+        return content
+
+    async def _ahandle_streaming_completion(
+        self,
+        params: dict[str, Any],
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str:
+        """Handle streaming chat completion asynchronously."""
+        full_response = ""
+        tool_calls = {}
+
+        stream = await self.async_client.complete(**params)
+        async for update in stream:
+            if isinstance(update, StreamingChatCompletionsUpdate):
+                if update.choices:
+                    choice = update.choices[0]
+                    if choice.delta and choice.delta.content:
+                        content_delta = choice.delta.content
+                        full_response += content_delta
+                        self._emit_stream_chunk_event(
+                            chunk=content_delta,
+                            from_task=from_task,
+                            from_agent=from_agent,
+                        )
+
+                    if choice.delta and choice.delta.tool_calls:
+                        for tool_call in choice.delta.tool_calls:
+                            call_id = tool_call.id or "default"
+                            if call_id not in tool_calls:
+                                tool_calls[call_id] = {
+                                    "name": "",
+                                    "arguments": "",
+                                }
+
+                            if tool_call.function and tool_call.function.name:
+                                tool_calls[call_id]["name"] = tool_call.function.name
+                            if tool_call.function and tool_call.function.arguments:
+                                tool_calls[call_id]["arguments"] += (
+                                    tool_call.function.arguments
+                                )
+
+        if tool_calls and available_functions:
+            for call_data in tool_calls.values():
+                function_name = call_data["name"]
+
+                try:
+                    function_args = json.loads(call_data["arguments"])
+                except json.JSONDecodeError as e:
+                    logging.error(f"Failed to parse streamed tool arguments: {e}")
+                    continue
+
+                result = self._handle_tool_execution(
+                    function_name=function_name,
+                    function_args=function_args,
+                    available_functions=available_functions,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                )
+
+                if result is not None:
+                    return result
+
+        full_response = self._apply_stop_words(full_response)
+
+        self._emit_call_completed_event(
+            response=full_response,
+            call_type=LLMCallType.LLM_CALL,
+            from_task=from_task,
+            from_agent=from_agent,
+            messages=params["messages"],
+        )
+
+        return full_response
+
     def supports_function_calling(self) -> bool:
         """Check if the model supports function calling."""
         # Azure OpenAI models support function calling
@@ -604,3 +861,20 @@ class AzureCompletion(BaseLLM):
                 "total_tokens": getattr(usage, "total_tokens", 0),
             }
         return {"total_tokens": 0}
+
+    async def aclose(self) -> None:
+        """Close the async client and clean up resources.
+
+        This ensures proper cleanup of the underlying aiohttp session
+        to avoid unclosed connector warnings.
+        """
+        if hasattr(self.async_client, "close"):
+            await self.async_client.close()
+
+    async def __aenter__(self) -> Self:
+        """Async context manager entry."""
+        return self
+
+    async def __aexit__(self, exc_type: Any, exc_val: Any, exc_tb: Any) -> None:
+        """Async context manager exit."""
+        await self.aclose()

lib/crewai/src/crewai/llms/providers/bedrock/completion.py

@@ -1,6 +1,8 @@
 from __future__ import annotations
 
 from collections.abc import Mapping, Sequence
+from contextlib import AsyncExitStack
+import json
 import logging
 import os
 from typing import TYPE_CHECKING, Any, TypedDict, cast
@@ -42,6 +44,16 @@ except ImportError:
         'AWS Bedrock native provider not available, to install: uv add "crewai[bedrock]"'
     ) from None
 
+try:
+    from aiobotocore.session import (  # type: ignore[import-untyped]
+        get_session as get_aiobotocore_session,
+    )
+
+    AIOBOTOCORE_AVAILABLE = True
+except ImportError:
+    AIOBOTOCORE_AVAILABLE = False
+    get_aiobotocore_session = None
+
 
 if TYPE_CHECKING:
 
@@ -221,6 +233,15 @@ class BedrockCompletion(BaseLLM):
         self.client = session.client("bedrock-runtime", config=config)
         self.region_name = region_name
 
+        self.aws_access_key_id = aws_access_key_id or os.getenv("AWS_ACCESS_KEY_ID")
+        self.aws_secret_access_key = aws_secret_access_key or os.getenv(
+            "AWS_SECRET_ACCESS_KEY"
+        )
+        self.aws_session_token = aws_session_token or os.getenv("AWS_SESSION_TOKEN")
+
+        self._async_exit_stack = AsyncExitStack() if AIOBOTOCORE_AVAILABLE else None
+        self._async_client_initialized = False
+
         # Store completion parameters
         self.max_tokens = max_tokens
         self.top_p = top_p
@@ -354,6 +375,110 @@ class BedrockCompletion(BaseLLM):
             )
             raise
 
+    async def acall(
+        self,
+        messages: str | list[LLMMessage],
+        tools: list[dict[Any, Any]] | None = None,
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Async call to AWS Bedrock Converse API.
+
+        Args:
+            messages: Input messages as string or list of message dicts.
+            tools: Optional list of tool definitions.
+            callbacks: Optional list of callback handlers.
+            available_functions: Optional dict mapping function names to callables.
+            from_task: Optional task context for events.
+            from_agent: Optional agent context for events.
+            response_model: Optional Pydantic model for structured output.
+
+        Returns:
+            Generated text response or structured output.
+
+        Raises:
+            NotImplementedError: If aiobotocore is not installed.
+            LLMContextLengthExceededError: If context window is exceeded.
+        """
+        if not AIOBOTOCORE_AVAILABLE:
+            raise NotImplementedError(
+                "Async support for AWS Bedrock requires aiobotocore. "
+                'Install with: uv add "crewai[bedrock-async]"'
+            )
+
+        try:
+            self._emit_call_started_event(
+                messages=messages,
+                tools=tools,
+                callbacks=callbacks,
+                available_functions=available_functions,
+                from_task=from_task,
+                from_agent=from_agent,
+            )
+
+            formatted_messages, system_message = self._format_messages_for_converse(
+                messages  # type: ignore[arg-type]
+            )
+
+            body: BedrockConverseRequestBody = {
+                "inferenceConfig": self._get_inference_config(),
+            }
+
+            if system_message:
+                body["system"] = cast(
+                    "list[SystemContentBlockTypeDef]",
+                    cast(object, [{"text": system_message}]),
+                )
+
+            if tools:
+                tool_config: ToolConfigurationTypeDef = {
+                    "tools": cast(
+                        "Sequence[ToolTypeDef]",
+                        cast(object, self._format_tools_for_converse(tools)),
+                    )
+                }
+                body["toolConfig"] = tool_config
+
+            if self.guardrail_config:
+                guardrail_config: GuardrailConfigurationTypeDef = cast(
+                    "GuardrailConfigurationTypeDef", cast(object, self.guardrail_config)
+                )
+                body["guardrailConfig"] = guardrail_config
+
+            if self.additional_model_request_fields:
+                body["additionalModelRequestFields"] = (
+                    self.additional_model_request_fields
+                )
+
+            if self.additional_model_response_field_paths:
+                body["additionalModelResponseFieldPaths"] = (
+                    self.additional_model_response_field_paths
+                )
+
+            if self.stream:
+                return await self._ahandle_streaming_converse(
+                    formatted_messages, body, available_functions, from_task, from_agent
+                )
+
+            return await self._ahandle_converse(
+                formatted_messages, body, available_functions, from_task, from_agent
+            )
+
+        except Exception as e:
+            if is_context_length_exceeded(e):
+                logging.error(f"Context window exceeded: {e}")
+                raise LLMContextLengthExceededError(str(e)) from e
+
+            error_msg = f"AWS Bedrock API call failed: {e!s}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise
+
     def _handle_converse(
         self,
         messages: list[dict[str, Any]],
@@ -565,6 +690,341 @@ class BedrockCompletion(BaseLLM):
                         role = event["messageStart"].get("role")
                         logging.debug(f"Streaming message started with role: {role}")
 
+                    elif "contentBlockStart" in event:
+                        start = event["contentBlockStart"].get("start", {})
+                        if "toolUse" in start:
+                            current_tool_use = start["toolUse"]
+                            tool_use_id = current_tool_use.get("toolUseId")
+                        logging.debug(
+                            f"Tool use started in stream: {json.dumps(current_tool_use)} (ID: {tool_use_id})"
+                        )
+
+                    elif "contentBlockDelta" in event:
+                        delta = event["contentBlockDelta"]["delta"]
+                        if "text" in delta:
+                            text_chunk = delta["text"]
+                            logging.debug(f"Streaming text chunk: {text_chunk[:50]}...")
+                            full_response += text_chunk
+                            self._emit_stream_chunk_event(
+                                chunk=text_chunk,
+                                from_task=from_task,
+                                from_agent=from_agent,
+                            )
+                        elif "toolUse" in delta and current_tool_use:
+                            tool_input = delta["toolUse"].get("input", "")
+                            if tool_input:
+                                logging.debug(f"Tool input delta: {tool_input}")
+                    elif "contentBlockStop" in event:
+                        logging.debug("Content block stopped in stream")
+                        if current_tool_use and available_functions:
+                            function_name = current_tool_use["name"]
+                            function_args = cast(
+                                dict[str, Any], current_tool_use.get("input", {})
+                            )
+                            tool_result = self._handle_tool_execution(
+                                function_name=function_name,
+                                function_args=function_args,
+                                available_functions=available_functions,
+                                from_task=from_task,
+                                from_agent=from_agent,
+                            )
+                            if tool_result is not None and tool_use_id:
+                                messages.append(
+                                    {
+                                        "role": "assistant",
+                                        "content": [{"toolUse": current_tool_use}],
+                                    }
+                                )
+                                messages.append(
+                                    {
+                                        "role": "user",
+                                        "content": [
+                                            {
+                                                "toolResult": {
+                                                    "toolUseId": tool_use_id,
+                                                    "content": [
+                                                        {"text": str(tool_result)}
+                                                    ],
+                                                }
+                                            }
+                                        ],
+                                    }
+                                )
+                                return self._handle_converse(
+                                    messages,
+                                    body,
+                                    available_functions,
+                                    from_task,
+                                    from_agent,
+                                )
+                            current_tool_use = None
+                            tool_use_id = None
+                    elif "messageStop" in event:
+                        stop_reason = event["messageStop"].get("stopReason")
+                        logging.debug(f"Streaming message stopped: {stop_reason}")
+                        if stop_reason == "max_tokens":
+                            logging.warning(
+                                "Streaming response truncated due to max_tokens"
+                            )
+                        elif stop_reason == "content_filtered":
+                            logging.warning(
+                                "Streaming response filtered due to content policy"
+                            )
+                            break
+                    elif "metadata" in event:
+                        metadata = event["metadata"]
+                        if "usage" in metadata:
+                            usage_metrics = metadata["usage"]
+                            self._track_token_usage_internal(usage_metrics)
+                            logging.debug(f"Token usage: {usage_metrics}")
+                            if "trace" in metadata:
+                                logging.debug(
+                                    f"Trace information available: {metadata['trace']}"
+                                )
+
+        except ClientError as e:
+            error_msg = self._handle_client_error(e)
+            raise RuntimeError(error_msg) from e
+        except BotoCoreError as e:
+            error_msg = f"Bedrock streaming connection error: {e}"
+            logging.error(error_msg)
+            raise ConnectionError(error_msg) from e
+
+        full_response = self._apply_stop_words(full_response)
+
+        if not full_response or full_response.strip() == "":
+            logging.warning("Bedrock streaming returned empty content, using fallback")
+            full_response = (
+                "I apologize, but I couldn't generate a response. Please try again."
+            )
+
+        self._emit_call_completed_event(
+            response=full_response,
+            call_type=LLMCallType.LLM_CALL,
+            from_task=from_task,
+            from_agent=from_agent,
+            messages=messages,
+        )
+
+        return full_response
+
+    async def _ensure_async_client(self) -> Any:
+        """Ensure async client is initialized and return it."""
+        if not self._async_client_initialized and get_aiobotocore_session:
+            if self._async_exit_stack is None:
+                raise RuntimeError(
+                    "Async exit stack not initialized - aiobotocore not available"
+                )
+            session = get_aiobotocore_session()
+            client = await self._async_exit_stack.enter_async_context(
+                session.create_client(
+                    "bedrock-runtime",
+                    region_name=self.region_name,
+                    aws_access_key_id=self.aws_access_key_id,
+                    aws_secret_access_key=self.aws_secret_access_key,
+                    aws_session_token=self.aws_session_token,
+                )
+            )
+            self._async_client = client
+            self._async_client_initialized = True
+        return self._async_client
+
+    async def _ahandle_converse(
+        self,
+        messages: list[dict[str, Any]],
+        body: BedrockConverseRequestBody,
+        available_functions: Mapping[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+    ) -> str:
+        """Handle async non-streaming converse API call."""
+        try:
+            if not messages:
+                raise ValueError("Messages cannot be empty")
+
+            for i, msg in enumerate(messages):
+                if (
+                    not isinstance(msg, dict)
+                    or "role" not in msg
+                    or "content" not in msg
+                ):
+                    raise ValueError(f"Invalid message format at index {i}")
+
+            async_client = await self._ensure_async_client()
+            response = await async_client.converse(
+                modelId=self.model_id,
+                messages=cast(
+                    "Sequence[MessageTypeDef | MessageOutputTypeDef]",
+                    cast(object, messages),
+                ),
+                **body,
+            )
+
+            if "usage" in response:
+                self._track_token_usage_internal(response["usage"])
+
+            stop_reason = response.get("stopReason")
+            if stop_reason:
+                logging.debug(f"Response stop reason: {stop_reason}")
+                if stop_reason == "max_tokens":
+                    logging.warning("Response truncated due to max_tokens limit")
+                elif stop_reason == "content_filtered":
+                    logging.warning("Response was filtered due to content policy")
+
+            output = response.get("output", {})
+            message = output.get("message", {})
+            content = message.get("content", [])
+
+            if not content:
+                logging.warning("No content in Bedrock response")
+                return (
+                    "I apologize, but I received an empty response. Please try again."
+                )
+
+            text_content = ""
+
+            for content_block in content:
+                if "text" in content_block:
+                    text_content += content_block["text"]
+
+                elif "toolUse" in content_block and available_functions:
+                    tool_use_block = content_block["toolUse"]
+                    tool_use_id = tool_use_block.get("toolUseId")
+                    function_name = tool_use_block["name"]
+                    function_args = tool_use_block.get("input", {})
+
+                    logging.debug(
+                        f"Tool use requested: {function_name} with ID {tool_use_id}"
+                    )
+
+                    tool_result = self._handle_tool_execution(
+                        function_name=function_name,
+                        function_args=function_args,
+                        available_functions=dict(available_functions),
+                        from_task=from_task,
+                        from_agent=from_agent,
+                    )
+
+                    if tool_result is not None:
+                        messages.append(
+                            {
+                                "role": "assistant",
+                                "content": [{"toolUse": tool_use_block}],
+                            }
+                        )
+
+                        messages.append(
+                            {
+                                "role": "user",
+                                "content": [
+                                    {
+                                        "toolResult": {
+                                            "toolUseId": tool_use_id,
+                                            "content": [{"text": str(tool_result)}],
+                                        }
+                                    }
+                                ],
+                            }
+                        )
+
+                        return await self._ahandle_converse(
+                            messages, body, available_functions, from_task, from_agent
+                        )
+
+            text_content = self._apply_stop_words(text_content)
+
+            if not text_content or text_content.strip() == "":
+                logging.warning("Extracted empty text content from Bedrock response")
+                text_content = "I apologize, but I couldn't generate a proper response. Please try again."
+
+            self._emit_call_completed_event(
+                response=text_content,
+                call_type=LLMCallType.LLM_CALL,
+                from_task=from_task,
+                from_agent=from_agent,
+                messages=messages,
+            )
+
+            return text_content
+
+        except ClientError as e:
+            error_code = e.response.get("Error", {}).get("Code", "Unknown")
+            error_msg = e.response.get("Error", {}).get("Message", str(e))
+            logging.error(f"AWS Bedrock ClientError ({error_code}): {error_msg}")
+
+            if error_code == "ValidationException":
+                if "last turn" in error_msg and "user message" in error_msg:
+                    raise ValueError(
+                        f"Conversation format error: {error_msg}. Check message alternation."
+                    ) from e
+                raise ValueError(f"Request validation failed: {error_msg}") from e
+            if error_code == "AccessDeniedException":
+                raise PermissionError(
+                    f"Access denied to model {self.model_id}: {error_msg}"
+                ) from e
+            if error_code == "ResourceNotFoundException":
+                raise ValueError(f"Model {self.model_id} not found: {error_msg}") from e
+            if error_code == "ThrottlingException":
+                raise RuntimeError(
+                    f"API throttled, please retry later: {error_msg}"
+                ) from e
+            if error_code == "ModelTimeoutException":
+                raise TimeoutError(f"Model request timed out: {error_msg}") from e
+            if error_code == "ServiceQuotaExceededException":
+                raise RuntimeError(f"Service quota exceeded: {error_msg}") from e
+            if error_code == "ModelNotReadyException":
+                raise RuntimeError(
+                    f"Model {self.model_id} not ready: {error_msg}"
+                ) from e
+            if error_code == "ModelErrorException":
+                raise RuntimeError(f"Model error: {error_msg}") from e
+            if error_code == "InternalServerException":
+                raise RuntimeError(f"Internal server error: {error_msg}") from e
+            if error_code == "ServiceUnavailableException":
+                raise RuntimeError(f"Service unavailable: {error_msg}") from e
+
+            raise RuntimeError(f"Bedrock API error ({error_code}): {error_msg}") from e
+
+        except BotoCoreError as e:
+            error_msg = f"Bedrock connection error: {e}"
+            logging.error(error_msg)
+            raise ConnectionError(error_msg) from e
+        except Exception as e:
+            error_msg = f"Unexpected error in Bedrock converse call: {e}"
+            logging.error(error_msg)
+            raise RuntimeError(error_msg) from e
+
+    async def _ahandle_streaming_converse(
+        self,
+        messages: list[dict[str, Any]],
+        body: BedrockConverseRequestBody,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+    ) -> str:
+        """Handle async streaming converse API call."""
+        full_response = ""
+        current_tool_use = None
+        tool_use_id = None
+
+        try:
+            async_client = await self._ensure_async_client()
+            response = await async_client.converse_stream(
+                modelId=self.model_id,
+                messages=cast(
+                    "Sequence[MessageTypeDef | MessageOutputTypeDef]",
+                    cast(object, messages),
+                ),
+                **body,
+            )
+
+            stream = response.get("stream")
+            if stream:
+                async for event in stream:
+                    if "messageStart" in event:
+                        role = event["messageStart"].get("role")
+                        logging.debug(f"Streaming message started with role: {role}")
+
                     elif "contentBlockStart" in event:
                         start = event["contentBlockStart"].get("start", {})
                         if "toolUse" in start:
@@ -590,17 +1050,14 @@ class BedrockCompletion(BaseLLM):
                             if tool_input:
                                 logging.debug(f"Tool input delta: {tool_input}")
 
-                    # Content block stop - end of a content block
                     elif "contentBlockStop" in event:
                         logging.debug("Content block stopped in stream")
-                        # If we were accumulating a tool use, it's now complete
                         if current_tool_use and available_functions:
                             function_name = current_tool_use["name"]
                             function_args = cast(
                                 dict[str, Any], current_tool_use.get("input", {})
                             )
 
-                            # Execute tool
                             tool_result = self._handle_tool_execution(
                                 function_name=function_name,
                                 function_args=function_args,
@@ -610,7 +1067,6 @@ class BedrockCompletion(BaseLLM):
                             )
 
                             if tool_result is not None and tool_use_id:
-                                # Continue conversation with tool result
                                 messages.append(
                                     {
                                         "role": "assistant",
@@ -634,8 +1090,7 @@ class BedrockCompletion(BaseLLM):
                                     }
                                 )
 
-                                # Recursive call - note this switches to non-streaming
-                                return self._handle_converse(
+                                return await self._ahandle_converse(
                                     messages,
                                     body,
                                     available_functions,
@@ -643,10 +1098,9 @@ class BedrockCompletion(BaseLLM):
                                     from_agent,
                                 )
 
-                            current_tool_use = None
-                            tool_use_id = None
+                                current_tool_use = None
+                                tool_use_id = None
 
-                    # Message stop - end of entire message
                     elif "messageStop" in event:
                         stop_reason = event["messageStop"].get("stopReason")
                         logging.debug(f"Streaming message stopped: {stop_reason}")
@@ -660,7 +1114,6 @@ class BedrockCompletion(BaseLLM):
                             )
                         break
 
-                    # Metadata - contains usage information and trace details
                     elif "metadata" in event:
                         metadata = event["metadata"]
                         if "usage" in metadata:
@@ -680,17 +1133,14 @@ class BedrockCompletion(BaseLLM):
             logging.error(error_msg)
             raise ConnectionError(error_msg) from e
 
-        # Apply stop words to full response
         full_response = self._apply_stop_words(full_response)
 
-        # Ensure we don't return empty content
         if not full_response or full_response.strip() == "":
             logging.warning("Bedrock streaming returned empty content, using fallback")
             full_response = (
                 "I apologize, but I couldn't generate a response. Please try again."
             )
 
-        # Emit completion event
         self._emit_call_completed_event(
             response=full_response,
             call_type=LLMCallType.LLM_CALL,

lib/crewai/src/crewai/llms/providers/gemini/completion.py

@@ -1,13 +1,14 @@
+from __future__ import annotations
+
 import logging
 import os
 import re
-from typing import Any, cast
+from typing import TYPE_CHECKING, Any
 
 from pydantic import BaseModel
 
 from crewai.events.types.llm_events import LLMCallType
 from crewai.llms.base_llm import BaseLLM
-from crewai.llms.hooks.base import BaseInterceptor
 from crewai.utilities.agent_utils import is_context_length_exceeded
 from crewai.utilities.exceptions.context_window_exceeding_exception import (
     LLMContextLengthExceededError,
@@ -15,10 +16,15 @@ from crewai.utilities.exceptions.context_window_exceeding_exception import (
 from crewai.utilities.types import LLMMessage
 
 
+if TYPE_CHECKING:
+    from crewai.llms.hooks.base import BaseInterceptor
+
+
 try:
-    from google import genai  # type: ignore[import-untyped]
-    from google.genai import types  # type: ignore[import-untyped]
-    from google.genai.errors import APIError  # type: ignore[import-untyped]
+    from google import genai
+    from google.genai import types
+    from google.genai.errors import APIError
+    from google.genai.types import GenerateContentResponse, Schema
 except ImportError:
     raise ImportError(
         'Google Gen AI native provider not available, to install: uv add "crewai[google-genai]"'
@@ -102,7 +108,9 @@ class GeminiCompletion(BaseLLM):
 
         # Model-specific settings
         version_match = re.search(r"gemini-(\d+(?:\.\d+)?)", model.lower())
-        self.supports_tools = bool(version_match and float(version_match.group(1)) >= 1.5)
+        self.supports_tools = bool(
+            version_match and float(version_match.group(1)) >= 1.5
+        )
 
     @property
     def stop(self) -> list[str]:
@@ -128,7 +136,7 @@ class GeminiCompletion(BaseLLM):
         else:
             self.stop_sequences = []
 
-    def _initialize_client(self, use_vertexai: bool = False) -> genai.Client:  # type: ignore[no-any-unimported]
+    def _initialize_client(self, use_vertexai: bool = False) -> genai.Client:
         """Initialize the Google Gen AI client with proper parameter handling.
 
         Args:
@@ -277,7 +285,84 @@ class GeminiCompletion(BaseLLM):
             )
             raise
 
-    def _prepare_generation_config(  # type: ignore[no-any-unimported]
+    async def acall(
+        self,
+        messages: str | list[LLMMessage],
+        tools: list[dict[str, Any]] | None = None,
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Async call to Google Gemini generate content API.
+
+        Args:
+            messages: Input messages for the chat completion
+            tools: List of tool/function definitions
+            callbacks: Callback functions (not used as token counts are handled by the response)
+            available_functions: Available functions for tool calling
+            from_task: Task that initiated the call
+            from_agent: Agent that initiated the call
+
+        Returns:
+            Chat completion response or tool call result
+        """
+        try:
+            self._emit_call_started_event(
+                messages=messages,
+                tools=tools,
+                callbacks=callbacks,
+                available_functions=available_functions,
+                from_task=from_task,
+                from_agent=from_agent,
+            )
+            self.tools = tools
+
+            formatted_content, system_instruction = self._format_messages_for_gemini(
+                messages
+            )
+
+            config = self._prepare_generation_config(
+                system_instruction, tools, response_model
+            )
+
+            if self.stream:
+                return await self._ahandle_streaming_completion(
+                    formatted_content,
+                    config,
+                    available_functions,
+                    from_task,
+                    from_agent,
+                    response_model,
+                )
+
+            return await self._ahandle_completion(
+                formatted_content,
+                system_instruction,
+                config,
+                available_functions,
+                from_task,
+                from_agent,
+                response_model,
+            )
+
+        except APIError as e:
+            error_msg = f"Google Gemini API error: {e.code} - {e.message}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise
+        except Exception as e:
+            error_msg = f"Google Gemini API call failed: {e!s}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise
+
+    def _prepare_generation_config(
         self,
         system_instruction: str | None = None,
         tools: list[dict[str, Any]] | None = None,
@@ -294,7 +379,7 @@ class GeminiCompletion(BaseLLM):
             GenerateContentConfig object for Gemini API
         """
         self.tools = tools
-        config_params = {}
+        config_params: dict[str, Any] = {}
 
         # Add system instruction if present
         if system_instruction:
@@ -329,7 +414,7 @@ class GeminiCompletion(BaseLLM):
 
         return types.GenerateContentConfig(**config_params)
 
-    def _convert_tools_for_interference(  # type: ignore[no-any-unimported]
+    def _convert_tools_for_interference(  # type: ignore[override]
         self, tools: list[dict[str, Any]]
     ) -> list[types.Tool]:
         """Convert CrewAI tool format to Gemini function declaration format."""
@@ -346,7 +431,7 @@ class GeminiCompletion(BaseLLM):
             )
 
             # Add parameters if present - ensure parameters is a dict
-            if parameters and isinstance(parameters, dict):
+            if parameters and isinstance(parameters, Schema):
                 function_declaration.parameters = parameters
 
             gemini_tool = types.Tool(function_declarations=[function_declaration])
@@ -354,7 +439,7 @@ class GeminiCompletion(BaseLLM):
 
         return gemini_tools
 
-    def _format_messages_for_gemini(  # type: ignore[no-any-unimported]
+    def _format_messages_for_gemini(
         self, messages: str | list[LLMMessage]
     ) -> tuple[list[types.Content], str | None]:
         """Format messages for Gemini API.
@@ -373,32 +458,41 @@ class GeminiCompletion(BaseLLM):
         # Use base class formatting first
         base_formatted = super()._format_messages(messages)
 
-        contents = []
+        contents: list[types.Content] = []
         system_instruction: str | None = None
 
         for message in base_formatted:
-            role = message.get("role")
-            content = message.get("content", "")
+            role = message["role"]
+            content = message["content"]
+
+            # Convert content to string if it's a list
+            if isinstance(content, list):
+                text_content = " ".join(
+                    str(item.get("text", "")) if isinstance(item, dict) else str(item)
+                    for item in content
+                )
+            else:
+                text_content = str(content) if content else ""
 
             if role == "system":
                 # Extract system instruction - Gemini handles it separately
                 if system_instruction:
-                    system_instruction += f"\n\n{content}"
+                    system_instruction += f"\n\n{text_content}"
                 else:
-                    system_instruction = cast(str, content)
+                    system_instruction = text_content
             else:
                 # Convert role for Gemini (assistant -> model)
                 gemini_role = "model" if role == "assistant" else "user"
 
                 # Create Content object
                 gemini_content = types.Content(
-                    role=gemini_role, parts=[types.Part.from_text(text=content)]
+                    role=gemini_role, parts=[types.Part.from_text(text=text_content)]
                 )
                 contents.append(gemini_content)
 
         return contents, system_instruction
 
-    def _handle_completion(  # type: ignore[no-any-unimported]
+    def _handle_completion(
         self,
         contents: list[types.Content],
         system_instruction: str | None,
@@ -409,14 +503,14 @@ class GeminiCompletion(BaseLLM):
         response_model: type[BaseModel] | None = None,
     ) -> str | Any:
         """Handle non-streaming content generation."""
-        api_params = {
-            "model": self.model,
-            "contents": contents,
-            "config": config,
-        }
-
         try:
-            response = self.client.models.generate_content(**api_params)
+            # The API accepts list[Content] but mypy is overly strict about variance
+            contents_for_api: Any = contents
+            response = self.client.models.generate_content(
+                model=self.model,
+                contents=contents_for_api,
+                config=config,
+            )
 
             usage = self._extract_token_usage(response)
         except Exception as e:
@@ -433,6 +527,8 @@ class GeminiCompletion(BaseLLM):
                 for part in candidate.content.parts:
                     if hasattr(part, "function_call") and part.function_call:
                         function_name = part.function_call.name
+                        if function_name is None:
+                            continue
                         function_args = (
                             dict(part.function_call.args)
                             if part.function_call.args
@@ -442,7 +538,7 @@ class GeminiCompletion(BaseLLM):
                         result = self._handle_tool_execution(
                             function_name=function_name,
                             function_args=function_args,
-                            available_functions=available_functions,  # type: ignore
+                            available_functions=available_functions or {},
                             from_task=from_task,
                             from_agent=from_agent,
                         )
@@ -450,7 +546,7 @@ class GeminiCompletion(BaseLLM):
                         if result is not None:
                             return result
 
-        content = response.text if hasattr(response, "text") else ""
+        content = response.text or ""
         content = self._apply_stop_words(content)
 
         messages_for_event = self._convert_contents_to_dict(contents)
@@ -465,7 +561,7 @@ class GeminiCompletion(BaseLLM):
 
         return content
 
-    def _handle_streaming_completion(  # type: ignore[no-any-unimported]
+    def _handle_streaming_completion(
         self,
         contents: list[types.Content],
         config: types.GenerateContentConfig,
@@ -476,16 +572,16 @@ class GeminiCompletion(BaseLLM):
     ) -> str:
         """Handle streaming content generation."""
         full_response = ""
-        function_calls = {}
+        function_calls: dict[str, dict[str, Any]] = {}
 
-        api_params = {
-            "model": self.model,
-            "contents": contents,
-            "config": config,
-        }
-
-        for chunk in self.client.models.generate_content_stream(**api_params):
-            if hasattr(chunk, "text") and chunk.text:
+        # The API accepts list[Content] but mypy is overly strict about variance
+        contents_for_api: Any = contents
+        for chunk in self.client.models.generate_content_stream(
+            model=self.model,
+            contents=contents_for_api,
+            config=config,
+        ):
+            if chunk.text:
                 full_response += chunk.text
                 self._emit_stream_chunk_event(
                     chunk=chunk.text,
@@ -493,7 +589,7 @@ class GeminiCompletion(BaseLLM):
                     from_agent=from_agent,
                 )
 
-            if hasattr(chunk, "candidates") and chunk.candidates:
+            if chunk.candidates:
                 candidate = chunk.candidates[0]
                 if candidate.content and candidate.content.parts:
                     for part in candidate.content.parts:
@@ -513,6 +609,14 @@ class GeminiCompletion(BaseLLM):
                 function_name = call_data["name"]
                 function_args = call_data["args"]
 
+                # Skip if function_name is None
+                if not isinstance(function_name, str):
+                    continue
+
+                # Ensure function_args is a dict
+                if not isinstance(function_args, dict):
+                    function_args = {}
+
                 # Execute tool
                 result = self._handle_tool_execution(
                     function_name=function_name,
@@ -537,6 +641,154 @@ class GeminiCompletion(BaseLLM):
 
         return full_response
 
+    async def _ahandle_completion(
+        self,
+        contents: list[types.Content],
+        system_instruction: str | None,
+        config: types.GenerateContentConfig,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Handle async non-streaming content generation."""
+        try:
+            # The API accepts list[Content] but mypy is overly strict about variance
+            contents_for_api: Any = contents
+            response = await self.client.aio.models.generate_content(
+                model=self.model,
+                contents=contents_for_api,
+                config=config,
+            )
+
+            usage = self._extract_token_usage(response)
+        except Exception as e:
+            if is_context_length_exceeded(e):
+                logging.error(f"Context window exceeded: {e}")
+                raise LLMContextLengthExceededError(str(e)) from e
+            raise e from e
+
+        self._track_token_usage_internal(usage)
+
+        if response.candidates and (self.tools or available_functions):
+            candidate = response.candidates[0]
+            if candidate.content and candidate.content.parts:
+                for part in candidate.content.parts:
+                    if hasattr(part, "function_call") and part.function_call:
+                        function_name = part.function_call.name
+                        if function_name is None:
+                            continue
+                        function_args = (
+                            dict(part.function_call.args)
+                            if part.function_call.args
+                            else {}
+                        )
+
+                        result = self._handle_tool_execution(
+                            function_name=function_name,
+                            function_args=function_args,
+                            available_functions=available_functions or {},
+                            from_task=from_task,
+                            from_agent=from_agent,
+                        )
+
+                        if result is not None:
+                            return result
+
+        content = response.text or ""
+        content = self._apply_stop_words(content)
+
+        messages_for_event = self._convert_contents_to_dict(contents)
+
+        self._emit_call_completed_event(
+            response=content,
+            call_type=LLMCallType.LLM_CALL,
+            from_task=from_task,
+            from_agent=from_agent,
+            messages=messages_for_event,
+        )
+
+        return content
+
+    async def _ahandle_streaming_completion(
+        self,
+        contents: list[types.Content],
+        config: types.GenerateContentConfig,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str:
+        """Handle async streaming content generation."""
+        full_response = ""
+        function_calls: dict[str, dict[str, Any]] = {}
+
+        # The API accepts list[Content] but mypy is overly strict about variance
+        contents_for_api: Any = contents
+        stream = await self.client.aio.models.generate_content_stream(
+            model=self.model,
+            contents=contents_for_api,
+            config=config,
+        )
+        async for chunk in stream:
+            if chunk.text:
+                full_response += chunk.text
+                self._emit_stream_chunk_event(
+                    chunk=chunk.text,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                )
+
+            if chunk.candidates:
+                candidate = chunk.candidates[0]
+                if candidate.content and candidate.content.parts:
+                    for part in candidate.content.parts:
+                        if hasattr(part, "function_call") and part.function_call:
+                            call_id = part.function_call.name or "default"
+                            if call_id not in function_calls:
+                                function_calls[call_id] = {
+                                    "name": part.function_call.name,
+                                    "args": dict(part.function_call.args)
+                                    if part.function_call.args
+                                    else {},
+                                }
+
+        if function_calls and available_functions:
+            for call_data in function_calls.values():
+                function_name = call_data["name"]
+                function_args = call_data["args"]
+
+                # Skip if function_name is None
+                if not isinstance(function_name, str):
+                    continue
+
+                # Ensure function_args is a dict
+                if not isinstance(function_args, dict):
+                    function_args = {}
+
+                result = self._handle_tool_execution(
+                    function_name=function_name,
+                    function_args=function_args,
+                    available_functions=available_functions,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                )
+
+                if result is not None:
+                    return result
+
+        messages_for_event = self._convert_contents_to_dict(contents)
+
+        self._emit_call_completed_event(
+            response=full_response,
+            call_type=LLMCallType.LLM_CALL,
+            from_task=from_task,
+            from_agent=from_agent,
+            messages=messages_for_event,
+        )
+
+        return full_response
+
     def supports_function_calling(self) -> bool:
         """Check if the model supports function calling."""
         return self.supports_tools
@@ -583,9 +835,10 @@ class GeminiCompletion(BaseLLM):
         # Default context window size for Gemini models
         return int(1048576 * CONTEXT_WINDOW_USAGE_RATIO)  # 1M tokens
 
-    def _extract_token_usage(self, response: dict[str, Any]) -> dict[str, Any]:
+    @staticmethod
+    def _extract_token_usage(response: GenerateContentResponse) -> dict[str, Any]:
         """Extract token usage from Gemini response."""
-        if hasattr(response, "usage_metadata"):
+        if response.usage_metadata:
             usage = response.usage_metadata
             return {
                 "prompt_token_count": getattr(usage, "prompt_token_count", 0),
@@ -595,21 +848,23 @@ class GeminiCompletion(BaseLLM):
             }
         return {"total_tokens": 0}
 
-    def _convert_contents_to_dict(  # type: ignore[no-any-unimported]
+    def _convert_contents_to_dict(
         self,
         contents: list[types.Content],
     ) -> list[dict[str, str]]:
         """Convert contents to dict format."""
-        return [
-            {
-                "role": "assistant"
-                if content_obj.role == "model"
-                else content_obj.role,
-                "content": " ".join(
-                    part.text
-                    for part in content_obj.parts
-                    if hasattr(part, "text") and part.text
-                ),
-            }
-            for content_obj in contents
-        ]
+        result: list[dict[str, str]] = []
+        for content_obj in contents:
+            role = content_obj.role
+            if role == "model":
+                role = "assistant"
+            elif role is None:
+                role = "user"
+
+            parts = content_obj.parts or []
+            content = " ".join(
+                part.text for part in parts if hasattr(part, "text") and part.text
+            )
+
+            result.append({"role": role, "content": content})
+        return result

lib/crewai/src/crewai/llms/providers/openai/completion.py

@@ -1,13 +1,13 @@
 from __future__ import annotations
 
-from collections.abc import Iterator
+from collections.abc import AsyncIterator, Iterator
 import json
 import logging
 import os
 from typing import TYPE_CHECKING, Any
 
 import httpx
-from openai import APIConnectionError, NotFoundError, OpenAI
+from openai import APIConnectionError, AsyncOpenAI, NotFoundError, OpenAI
 from openai.types.chat import ChatCompletion, ChatCompletionChunk
 from openai.types.chat.chat_completion import Choice
 from openai.types.chat.chat_completion_chunk import ChoiceDelta
@@ -15,7 +15,7 @@ from pydantic import BaseModel
 
 from crewai.events.types.llm_events import LLMCallType
 from crewai.llms.base_llm import BaseLLM
-from crewai.llms.hooks.transport import HTTPTransport
+from crewai.llms.hooks.transport import AsyncHTTPTransport, HTTPTransport
 from crewai.utilities.agent_utils import is_context_length_exceeded
 from crewai.utilities.converter import generate_model_description
 from crewai.utilities.exceptions.context_window_exceeding_exception import (
@@ -101,6 +101,14 @@ class OpenAICompletion(BaseLLM):
 
         self.client = OpenAI(**client_config)
 
+        async_client_config = self._get_client_params()
+        if self.interceptor:
+            async_transport = AsyncHTTPTransport(interceptor=self.interceptor)
+            async_http_client = httpx.AsyncClient(transport=async_transport)
+            async_client_config["http_client"] = async_http_client
+
+        self.async_client = AsyncOpenAI(**async_client_config)
+
         # Completion parameters
         self.top_p = top_p
         self.frequency_penalty = frequency_penalty
@@ -210,6 +218,71 @@ class OpenAICompletion(BaseLLM):
             )
             raise
 
+    async def acall(
+        self,
+        messages: str | list[LLMMessage],
+        tools: list[dict[str, BaseTool]] | None = None,
+        callbacks: list[Any] | None = None,
+        available_functions: dict[str, Any] | None = None,
+        from_task: Task | None = None,
+        from_agent: Agent | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Async call to OpenAI chat completion API.
+
+        Args:
+            messages: Input messages for the chat completion
+            tools: list of tool/function definitions
+            callbacks: Callback functions (not used in native implementation)
+            available_functions: Available functions for tool calling
+            from_task: Task that initiated the call
+            from_agent: Agent that initiated the call
+            response_model: Response model for structured output.
+
+        Returns:
+            Chat completion response or tool call result
+        """
+        try:
+            self._emit_call_started_event(
+                messages=messages,
+                tools=tools,
+                callbacks=callbacks,
+                available_functions=available_functions,
+                from_task=from_task,
+                from_agent=from_agent,
+            )
+
+            formatted_messages = self._format_messages(messages)
+
+            completion_params = self._prepare_completion_params(
+                messages=formatted_messages, tools=tools
+            )
+
+            if self.stream:
+                return await self._ahandle_streaming_completion(
+                    params=completion_params,
+                    available_functions=available_functions,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                    response_model=response_model,
+                )
+
+            return await self._ahandle_completion(
+                params=completion_params,
+                available_functions=available_functions,
+                from_task=from_task,
+                from_agent=from_agent,
+                response_model=response_model,
+            )
+
+        except Exception as e:
+            error_msg = f"OpenAI API call failed: {e!s}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise
+
     def _prepare_completion_params(
         self, messages: list[LLMMessage], tools: list[dict[str, BaseTool]] | None = None
     ) -> dict[str, Any]:
@@ -352,10 +425,10 @@ class OpenAICompletion(BaseLLM):
 
             if message.tool_calls and available_functions:
                 tool_call = message.tool_calls[0]
-                function_name = tool_call.function.name  # type: ignore[union-attr]
+                function_name = tool_call.function.name
 
                 try:
-                    function_args = json.loads(tool_call.function.arguments)  # type: ignore[union-attr]
+                    function_args = json.loads(tool_call.function.arguments)
                 except json.JSONDecodeError as e:
                     logging.error(f"Failed to parse tool arguments: {e}")
                     function_args = {}
@@ -564,6 +637,266 @@ class OpenAICompletion(BaseLLM):
 
         return full_response
 
+    async def _ahandle_completion(
+        self,
+        params: dict[str, Any],
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str | Any:
+        """Handle non-streaming async chat completion."""
+        try:
+            if response_model:
+                parse_params = {
+                    k: v for k, v in params.items() if k != "response_format"
+                }
+                parsed_response = await self.async_client.beta.chat.completions.parse(
+                    **parse_params,
+                    response_format=response_model,
+                )
+                math_reasoning = parsed_response.choices[0].message
+
+                if math_reasoning.refusal:
+                    pass
+
+                usage = self._extract_openai_token_usage(parsed_response)
+                self._track_token_usage_internal(usage)
+
+                parsed_object = parsed_response.choices[0].message.parsed
+                if parsed_object:
+                    structured_json = parsed_object.model_dump_json()
+                    self._emit_call_completed_event(
+                        response=structured_json,
+                        call_type=LLMCallType.LLM_CALL,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                        messages=params["messages"],
+                    )
+                    return structured_json
+
+            response: ChatCompletion = await self.async_client.chat.completions.create(
+                **params
+            )
+
+            usage = self._extract_openai_token_usage(response)
+
+            self._track_token_usage_internal(usage)
+
+            choice: Choice = response.choices[0]
+            message = choice.message
+
+            if message.tool_calls and available_functions:
+                tool_call = message.tool_calls[0]
+                function_name = tool_call.function.name
+
+                try:
+                    function_args = json.loads(tool_call.function.arguments)
+                except json.JSONDecodeError as e:
+                    logging.error(f"Failed to parse tool arguments: {e}")
+                    function_args = {}
+
+                result = self._handle_tool_execution(
+                    function_name=function_name,
+                    function_args=function_args,
+                    available_functions=available_functions,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                )
+
+                if result is not None:
+                    return result
+
+            content = message.content or ""
+            content = self._apply_stop_words(content)
+
+            if self.response_format and isinstance(self.response_format, type):
+                try:
+                    structured_result = self._validate_structured_output(
+                        content, self.response_format
+                    )
+                    self._emit_call_completed_event(
+                        response=structured_result,
+                        call_type=LLMCallType.LLM_CALL,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                        messages=params["messages"],
+                    )
+                    return structured_result
+                except ValueError as e:
+                    logging.warning(f"Structured output validation failed: {e}")
+
+            self._emit_call_completed_event(
+                response=content,
+                call_type=LLMCallType.LLM_CALL,
+                from_task=from_task,
+                from_agent=from_agent,
+                messages=params["messages"],
+            )
+
+            if usage.get("total_tokens", 0) > 0:
+                logging.info(f"OpenAI API usage: {usage}")
+        except NotFoundError as e:
+            error_msg = f"Model {self.model} not found: {e}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise ValueError(error_msg) from e
+        except APIConnectionError as e:
+            error_msg = f"Failed to connect to OpenAI API: {e}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise ConnectionError(error_msg) from e
+        except Exception as e:
+            if is_context_length_exceeded(e):
+                logging.error(f"Context window exceeded: {e}")
+                raise LLMContextLengthExceededError(str(e)) from e
+
+            error_msg = f"OpenAI API call failed: {e!s}"
+            logging.error(error_msg)
+            self._emit_call_failed_event(
+                error=error_msg, from_task=from_task, from_agent=from_agent
+            )
+            raise e from e
+
+        return content
+
+    async def _ahandle_streaming_completion(
+        self,
+        params: dict[str, Any],
+        available_functions: dict[str, Any] | None = None,
+        from_task: Any | None = None,
+        from_agent: Any | None = None,
+        response_model: type[BaseModel] | None = None,
+    ) -> str:
+        """Handle async streaming chat completion."""
+        full_response = ""
+        tool_calls = {}
+
+        if response_model:
+            completion_stream: AsyncIterator[
+                ChatCompletionChunk
+            ] = await self.async_client.chat.completions.create(**params)
+
+            accumulated_content = ""
+            async for chunk in completion_stream:
+                if not chunk.choices:
+                    continue
+
+                choice = chunk.choices[0]
+                delta: ChoiceDelta = choice.delta
+
+                if delta.content:
+                    accumulated_content += delta.content
+                    self._emit_stream_chunk_event(
+                        chunk=delta.content,
+                        from_task=from_task,
+                        from_agent=from_agent,
+                    )
+
+            try:
+                parsed_object = response_model.model_validate_json(accumulated_content)
+                structured_json = parsed_object.model_dump_json()
+
+                self._emit_call_completed_event(
+                    response=structured_json,
+                    call_type=LLMCallType.LLM_CALL,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                    messages=params["messages"],
+                )
+
+                return structured_json
+            except Exception as e:
+                logging.error(f"Failed to parse structured output from stream: {e}")
+                self._emit_call_completed_event(
+                    response=accumulated_content,
+                    call_type=LLMCallType.LLM_CALL,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                    messages=params["messages"],
+                )
+                return accumulated_content
+
+        stream: AsyncIterator[
+            ChatCompletionChunk
+        ] = await self.async_client.chat.completions.create(**params)
+
+        async for chunk in stream:
+            if not chunk.choices:
+                continue
+
+            choice = chunk.choices[0]
+            chunk_delta: ChoiceDelta = choice.delta
+
+            if chunk_delta.content:
+                full_response += chunk_delta.content
+                self._emit_stream_chunk_event(
+                    chunk=chunk_delta.content,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                )
+
+            if chunk_delta.tool_calls:
+                for tool_call in chunk_delta.tool_calls:
+                    call_id = tool_call.id or "default"
+                    if call_id not in tool_calls:
+                        tool_calls[call_id] = {
+                            "name": "",
+                            "arguments": "",
+                        }
+
+                    if tool_call.function and tool_call.function.name:
+                        tool_calls[call_id]["name"] = tool_call.function.name
+                    if tool_call.function and tool_call.function.arguments:
+                        tool_calls[call_id]["arguments"] += tool_call.function.arguments
+
+        if tool_calls and available_functions:
+            for call_data in tool_calls.values():
+                function_name = call_data["name"]
+                arguments = call_data["arguments"]
+
+                if not function_name or not arguments:
+                    continue
+
+                if function_name not in available_functions:
+                    logging.warning(
+                        f"Function '{function_name}' not found in available functions"
+                    )
+                    continue
+
+                try:
+                    function_args = json.loads(arguments)
+                except json.JSONDecodeError as e:
+                    logging.error(f"Failed to parse streamed tool arguments: {e}")
+                    continue
+
+                result = self._handle_tool_execution(
+                    function_name=function_name,
+                    function_args=function_args,
+                    available_functions=available_functions,
+                    from_task=from_task,
+                    from_agent=from_agent,
+                )
+
+                if result is not None:
+                    return result
+
+        full_response = self._apply_stop_words(full_response)
+
+        self._emit_call_completed_event(
+            response=full_response,
+            call_type=LLMCallType.LLM_CALL,
+            from_task=from_task,
+            from_agent=from_agent,
+            messages=params["messages"],
+        )
+
+        return full_response
+
     def supports_function_calling(self) -> bool:
         """Check if the model supports function calling."""
         return not self.is_o1_model

lib/crewai/src/crewai/memory/contextual/contextual_memory.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import asyncio
 from typing import TYPE_CHECKING
 
 from crewai.memory import (
@@ -16,6 +17,8 @@ if TYPE_CHECKING:
 
 
 class ContextualMemory:
+    """Aggregates and retrieves context from multiple memory sources."""
+
     def __init__(
         self,
         stm: ShortTermMemory,
@@ -46,9 +49,14 @@ class ContextualMemory:
             self.exm.task = self.task
 
     def build_context_for_task(self, task: Task, context: str) -> str:
-        """
-        Automatically builds a minimal, highly relevant set of contextual information
-        for a given task.
+        """Build contextual information for a task synchronously.
+
+        Args:
+            task: The task to build context for.
+            context: Additional context string.
+
+        Returns:
+            Formatted context string from all memory sources.
         """
         query = f"{task.description} {context}".strip()
 
@@ -63,6 +71,31 @@ class ContextualMemory:
         ]
         return "\n".join(filter(None, context_parts))
 
+    async def abuild_context_for_task(self, task: Task, context: str) -> str:
+        """Build contextual information for a task asynchronously.
+
+        Args:
+            task: The task to build context for.
+            context: Additional context string.
+
+        Returns:
+            Formatted context string from all memory sources.
+        """
+        query = f"{task.description} {context}".strip()
+
+        if query == "":
+            return ""
+
+        # Fetch all contexts concurrently
+        results = await asyncio.gather(
+            self._afetch_ltm_context(task.description),
+            self._afetch_stm_context(query),
+            self._afetch_entity_context(query),
+            self._afetch_external_context(query),
+        )
+
+        return "\n".join(filter(None, results))
+
     def _fetch_stm_context(self, query: str) -> str:
         """
         Fetches recent relevant insights from STM related to the task's description and expected_output,
@@ -135,3 +168,87 @@ class ContextualMemory:
             f"- {result['content']}" for result in external_memories
         )
         return f"External memories:\n{formatted_memories}"
+
+    async def _afetch_stm_context(self, query: str) -> str:
+        """Fetch recent relevant insights from STM asynchronously.
+
+        Args:
+            query: The search query.
+
+        Returns:
+            Formatted insights as bullet points, or empty string if none found.
+        """
+        if self.stm is None:
+            return ""
+
+        stm_results = await self.stm.asearch(query)
+        formatted_results = "\n".join(
+            [f"- {result['content']}" for result in stm_results]
+        )
+        return f"Recent Insights:\n{formatted_results}" if stm_results else ""
+
+    async def _afetch_ltm_context(self, task: str) -> str | None:
+        """Fetch historical data from LTM asynchronously.
+
+        Args:
+            task: The task description to search for.
+
+        Returns:
+            Formatted historical data as bullet points, or None if none found.
+        """
+        if self.ltm is None:
+            return ""
+
+        ltm_results = await self.ltm.asearch(task, latest_n=2)
+        if not ltm_results:
+            return None
+
+        formatted_results = [
+            suggestion
+            for result in ltm_results
+            for suggestion in result["metadata"]["suggestions"]
+        ]
+        formatted_results = list(dict.fromkeys(formatted_results))
+        formatted_results = "\n".join([f"- {result}" for result in formatted_results])  # type: ignore # Incompatible types in assignment (expression has type "str", variable has type "list[str]")
+
+        return f"Historical Data:\n{formatted_results}" if ltm_results else ""
+
+    async def _afetch_entity_context(self, query: str) -> str:
+        """Fetch relevant entity information asynchronously.
+
+        Args:
+            query: The search query.
+
+        Returns:
+            Formatted entity information as bullet points, or empty string if none found.
+        """
+        if self.em is None:
+            return ""
+
+        em_results = await self.em.asearch(query)
+        formatted_results = "\n".join(
+            [f"- {result['content']}" for result in em_results]
+        )
+        return f"Entities:\n{formatted_results}" if em_results else ""
+
+    async def _afetch_external_context(self, query: str) -> str:
+        """Fetch relevant information from External Memory asynchronously.
+
+        Args:
+            query: The search query.
+
+        Returns:
+            Formatted information as bullet points, or empty string if none found.
+        """
+        if self.exm is None:
+            return ""
+
+        external_memories = await self.exm.asearch(query)
+
+        if not external_memories:
+            return ""
+
+        formatted_memories = "\n".join(
+            f"- {result['content']}" for result in external_memories
+        )
+        return f"External memories:\n{formatted_memories}"

lib/crewai/src/crewai/memory/entity/entity_memory.py

@@ -26,7 +26,13 @@ class EntityMemory(Memory):
 
     _memory_provider: str | None = PrivateAttr()
 
-    def __init__(self, crew=None, embedder_config=None, storage=None, path=None):
+    def __init__(
+        self,
+        crew: Any = None,
+        embedder_config: Any = None,
+        storage: Any = None,
+        path: str | None = None,
+    ) -> None:
         memory_provider = None
         if embedder_config and isinstance(embedder_config, dict):
             memory_provider = embedder_config.get("provider")
@@ -43,7 +49,7 @@ class EntityMemory(Memory):
                 if embedder_config and isinstance(embedder_config, dict)
                 else None
             )
-            storage = Mem0Storage(type="short_term", crew=crew, config=config)
+            storage = Mem0Storage(type="short_term", crew=crew, config=config)  # type: ignore[no-untyped-call]
         else:
             storage = (
                 storage
@@ -170,7 +176,17 @@ class EntityMemory(Memory):
         query: str,
         limit: int = 5,
         score_threshold: float = 0.6,
-    ):
+    ) -> list[Any]:
+        """Search entity memory for relevant entries.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching memory entries.
+        """
         crewai_event_bus.emit(
             self,
             event=MemoryQueryStartedEvent(
@@ -217,6 +233,168 @@ class EntityMemory(Memory):
             )
             raise
 
+    async def asave(
+        self,
+        value: EntityMemoryItem | list[EntityMemoryItem],
+        metadata: dict[str, Any] | None = None,
+    ) -> None:
+        """Save entity items asynchronously.
+
+        Args:
+            value: Single EntityMemoryItem or list of EntityMemoryItems to save.
+            metadata: Optional metadata dict (not used, for signature compatibility).
+        """
+        if not value:
+            return
+
+        items = value if isinstance(value, list) else [value]
+        is_batch = len(items) > 1
+
+        metadata = {"entity_count": len(items)} if is_batch else items[0].metadata
+        crewai_event_bus.emit(
+            self,
+            event=MemorySaveStartedEvent(
+                metadata=metadata,
+                source_type="entity_memory",
+                from_agent=self.agent,
+                from_task=self.task,
+            ),
+        )
+
+        start_time = time.time()
+        saved_count = 0
+        errors: list[str | None] = []
+
+        async def save_single_item(item: EntityMemoryItem) -> tuple[bool, str | None]:
+            """Save a single item asynchronously."""
+            try:
+                if self._memory_provider == "mem0":
+                    data = f"""
+                    Remember details about the following entity:
+                    Name: {item.name}
+                    Type: {item.type}
+                    Entity Description: {item.description}
+                    """
+                else:
+                    data = f"{item.name}({item.type}): {item.description}"
+
+                await super(EntityMemory, self).asave(data, item.metadata)
+                return True, None
+            except Exception as e:
+                return False, f"{item.name}: {e!s}"
+
+        try:
+            for item in items:
+                success, error = await save_single_item(item)
+                if success:
+                    saved_count += 1
+                else:
+                    errors.append(error)
+
+            if is_batch:
+                emit_value = f"Saved {saved_count} entities"
+                metadata = {"entity_count": saved_count, "errors": errors}
+            else:
+                emit_value = f"{items[0].name}({items[0].type}): {items[0].description}"
+                metadata = items[0].metadata
+
+            crewai_event_bus.emit(
+                self,
+                event=MemorySaveCompletedEvent(
+                    value=emit_value,
+                    metadata=metadata,
+                    save_time_ms=(time.time() - start_time) * 1000,
+                    source_type="entity_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+
+            if errors:
+                raise Exception(
+                    f"Partial save: {len(errors)} failed out of {len(items)}"
+                )
+
+        except Exception as e:
+            fail_metadata = (
+                {"entity_count": len(items), "saved": saved_count}
+                if is_batch
+                else items[0].metadata
+            )
+            crewai_event_bus.emit(
+                self,
+                event=MemorySaveFailedEvent(
+                    metadata=fail_metadata,
+                    error=str(e),
+                    source_type="entity_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+            raise
+
+    async def asearch(
+        self,
+        query: str,
+        limit: int = 5,
+        score_threshold: float = 0.6,
+    ) -> list[Any]:
+        """Search entity memory asynchronously.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching memory entries.
+        """
+        crewai_event_bus.emit(
+            self,
+            event=MemoryQueryStartedEvent(
+                query=query,
+                limit=limit,
+                score_threshold=score_threshold,
+                source_type="entity_memory",
+                from_agent=self.agent,
+                from_task=self.task,
+            ),
+        )
+
+        start_time = time.time()
+        try:
+            results = await super().asearch(
+                query=query, limit=limit, score_threshold=score_threshold
+            )
+
+            crewai_event_bus.emit(
+                self,
+                event=MemoryQueryCompletedEvent(
+                    query=query,
+                    results=results,
+                    limit=limit,
+                    score_threshold=score_threshold,
+                    query_time_ms=(time.time() - start_time) * 1000,
+                    source_type="entity_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+
+            return results
+        except Exception as e:
+            crewai_event_bus.emit(
+                self,
+                event=MemoryQueryFailedEvent(
+                    query=query,
+                    limit=limit,
+                    score_threshold=score_threshold,
+                    error=str(e),
+                    source_type="entity_memory",
+                ),
+            )
+            raise
+
     def reset(self) -> None:
         try:
             self.storage.reset()

lib/crewai/src/crewai/memory/external/external_memory.py

@@ -30,7 +30,7 @@ class ExternalMemory(Memory):
     def _configure_mem0(crew: Any, config: dict[str, Any]) -> Mem0Storage:
         from crewai.memory.storage.mem0_storage import Mem0Storage
 
-        return Mem0Storage(type="external", crew=crew, config=config)
+        return Mem0Storage(type="external", crew=crew, config=config)  # type: ignore[no-untyped-call]
 
     @staticmethod
     def external_supported_storages() -> dict[str, Any]:
@@ -53,7 +53,10 @@ class ExternalMemory(Memory):
         if provider not in supported_storages:
             raise ValueError(f"Provider {provider} not supported")
 
-        return supported_storages[provider](crew, embedder_config.get("config", {}))
+        storage: Storage = supported_storages[provider](
+            crew, embedder_config.get("config", {})
+        )
+        return storage
 
     def save(
         self,
@@ -111,7 +114,17 @@ class ExternalMemory(Memory):
         query: str,
         limit: int = 5,
         score_threshold: float = 0.6,
-    ):
+    ) -> list[Any]:
+        """Search external memory for relevant entries.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching memory entries.
+        """
         crewai_event_bus.emit(
             self,
             event=MemoryQueryStartedEvent(
@@ -158,6 +171,124 @@ class ExternalMemory(Memory):
             )
             raise
 
+    async def asave(
+        self,
+        value: Any,
+        metadata: dict[str, Any] | None = None,
+    ) -> None:
+        """Save a value to external memory asynchronously.
+
+        Args:
+            value: The value to save.
+            metadata: Optional metadata to associate with the value.
+        """
+        crewai_event_bus.emit(
+            self,
+            event=MemorySaveStartedEvent(
+                value=value,
+                metadata=metadata,
+                source_type="external_memory",
+                from_agent=self.agent,
+                from_task=self.task,
+            ),
+        )
+
+        start_time = time.time()
+        try:
+            item = ExternalMemoryItem(
+                value=value,
+                metadata=metadata,
+                agent=self.agent.role if self.agent else None,
+            )
+            await super().asave(value=item.value, metadata=item.metadata)
+
+            crewai_event_bus.emit(
+                self,
+                event=MemorySaveCompletedEvent(
+                    value=value,
+                    metadata=metadata,
+                    save_time_ms=(time.time() - start_time) * 1000,
+                    source_type="external_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+        except Exception as e:
+            crewai_event_bus.emit(
+                self,
+                event=MemorySaveFailedEvent(
+                    value=value,
+                    metadata=metadata,
+                    error=str(e),
+                    source_type="external_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+            raise
+
+    async def asearch(
+        self,
+        query: str,
+        limit: int = 5,
+        score_threshold: float = 0.6,
+    ) -> list[Any]:
+        """Search external memory asynchronously.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching memory entries.
+        """
+        crewai_event_bus.emit(
+            self,
+            event=MemoryQueryStartedEvent(
+                query=query,
+                limit=limit,
+                score_threshold=score_threshold,
+                source_type="external_memory",
+                from_agent=self.agent,
+                from_task=self.task,
+            ),
+        )
+
+        start_time = time.time()
+        try:
+            results = await super().asearch(
+                query=query, limit=limit, score_threshold=score_threshold
+            )
+
+            crewai_event_bus.emit(
+                self,
+                event=MemoryQueryCompletedEvent(
+                    query=query,
+                    results=results,
+                    limit=limit,
+                    score_threshold=score_threshold,
+                    query_time_ms=(time.time() - start_time) * 1000,
+                    source_type="external_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+
+            return results
+        except Exception as e:
+            crewai_event_bus.emit(
+                self,
+                event=MemoryQueryFailedEvent(
+                    query=query,
+                    limit=limit,
+                    score_threshold=score_threshold,
+                    error=str(e),
+                    source_type="external_memory",
+                ),
+            )
+            raise
+
     def reset(self) -> None:
         self.storage.reset()
 

lib/crewai/src/crewai/memory/long_term/long_term_memory.py

@@ -24,7 +24,11 @@ class LongTermMemory(Memory):
     LongTermMemoryItem instances.
     """
 
-    def __init__(self, storage=None, path=None):
+    def __init__(
+        self,
+        storage: LTMSQLiteStorage | None = None,
+        path: str | None = None,
+    ) -> None:
         if not storage:
             storage = LTMSQLiteStorage(db_path=path) if path else LTMSQLiteStorage()
         super().__init__(storage=storage)
@@ -48,7 +52,7 @@ class LongTermMemory(Memory):
             metadata.update(
                 {"agent": item.agent, "expected_output": item.expected_output}
             )
-            self.storage.save(  # type: ignore # BUG?: Unexpected keyword argument "task_description","score","datetime" for "save" of "Storage"
+            self.storage.save(
                 task_description=item.task,
                 score=metadata["quality"],
                 metadata=metadata,
@@ -80,11 +84,20 @@ class LongTermMemory(Memory):
             )
             raise
 
-    def search(  # type: ignore # signature of "search" incompatible with supertype "Memory"
+    def search(  # type: ignore[override]
         self,
         task: str,
         latest_n: int = 3,
-    ) -> list[dict[str, Any]]:  # type: ignore # signature of "search" incompatible with supertype "Memory"
+    ) -> list[dict[str, Any]]:
+        """Search long-term memory for relevant entries.
+
+        Args:
+            task: The task description to search for.
+            latest_n: Maximum number of results to return.
+
+        Returns:
+            List of matching memory entries.
+        """
         crewai_event_bus.emit(
             self,
             event=MemoryQueryStartedEvent(
@@ -98,7 +111,7 @@ class LongTermMemory(Memory):
 
         start_time = time.time()
         try:
-            results = self.storage.load(task, latest_n)  # type: ignore # BUG?: "Storage" has no attribute "load"
+            results = self.storage.load(task, latest_n)
 
             crewai_event_bus.emit(
                 self,
@@ -113,7 +126,118 @@ class LongTermMemory(Memory):
                 ),
             )
 
-            return results
+            return results or []
+        except Exception as e:
+            crewai_event_bus.emit(
+                self,
+                event=MemoryQueryFailedEvent(
+                    query=task,
+                    limit=latest_n,
+                    error=str(e),
+                    source_type="long_term_memory",
+                ),
+            )
+            raise
+
+    async def asave(self, item: LongTermMemoryItem) -> None:  # type: ignore[override]
+        """Save an item to long-term memory asynchronously.
+
+        Args:
+            item: The LongTermMemoryItem to save.
+        """
+        crewai_event_bus.emit(
+            self,
+            event=MemorySaveStartedEvent(
+                value=item.task,
+                metadata=item.metadata,
+                agent_role=item.agent,
+                source_type="long_term_memory",
+                from_agent=self.agent,
+                from_task=self.task,
+            ),
+        )
+
+        start_time = time.time()
+        try:
+            metadata = item.metadata
+            metadata.update(
+                {"agent": item.agent, "expected_output": item.expected_output}
+            )
+            await self.storage.asave(
+                task_description=item.task,
+                score=metadata["quality"],
+                metadata=metadata,
+                datetime=item.datetime,
+            )
+
+            crewai_event_bus.emit(
+                self,
+                event=MemorySaveCompletedEvent(
+                    value=item.task,
+                    metadata=item.metadata,
+                    agent_role=item.agent,
+                    save_time_ms=(time.time() - start_time) * 1000,
+                    source_type="long_term_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+        except Exception as e:
+            crewai_event_bus.emit(
+                self,
+                event=MemorySaveFailedEvent(
+                    value=item.task,
+                    metadata=item.metadata,
+                    agent_role=item.agent,
+                    error=str(e),
+                    source_type="long_term_memory",
+                ),
+            )
+            raise
+
+    async def asearch(  # type: ignore[override]
+        self,
+        task: str,
+        latest_n: int = 3,
+    ) -> list[dict[str, Any]]:
+        """Search long-term memory asynchronously.
+
+        Args:
+            task: The task description to search for.
+            latest_n: Maximum number of results to return.
+
+        Returns:
+            List of matching memory entries.
+        """
+        crewai_event_bus.emit(
+            self,
+            event=MemoryQueryStartedEvent(
+                query=task,
+                limit=latest_n,
+                source_type="long_term_memory",
+                from_agent=self.agent,
+                from_task=self.task,
+            ),
+        )
+
+        start_time = time.time()
+        try:
+            results = await self.storage.aload(task, latest_n)
+
+            crewai_event_bus.emit(
+                self,
+                event=MemoryQueryCompletedEvent(
+                    query=task,
+                    results=results,
+                    limit=latest_n,
+                    query_time_ms=(time.time() - start_time) * 1000,
+                    source_type="long_term_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+
+            return results or []
         except Exception as e:
             crewai_event_bus.emit(
                 self,
@@ -127,4 +251,5 @@ class LongTermMemory(Memory):
             raise
 
     def reset(self) -> None:
+        """Reset long-term memory."""
         self.storage.reset()

lib/crewai/src/crewai/memory/memory.py

@@ -13,9 +13,7 @@ if TYPE_CHECKING:
 
 
 class Memory(BaseModel):
-    """
-    Base class for memory, now supporting agent tags and generic metadata.
-    """
+    """Base class for memory, supporting agent tags and generic metadata."""
 
     embedder_config: EmbedderConfig | dict[str, Any] | None = None
     crew: Any | None = None
@@ -52,20 +50,72 @@ class Memory(BaseModel):
         value: Any,
         metadata: dict[str, Any] | None = None,
     ) -> None:
-        metadata = metadata or {}
+        """Save a value to memory.
 
+        Args:
+            value: The value to save.
+            metadata: Optional metadata to associate with the value.
+        """
+        metadata = metadata or {}
         self.storage.save(value, metadata)
 
+    async def asave(
+        self,
+        value: Any,
+        metadata: dict[str, Any] | None = None,
+    ) -> None:
+        """Save a value to memory asynchronously.
+
+        Args:
+            value: The value to save.
+            metadata: Optional metadata to associate with the value.
+        """
+        metadata = metadata or {}
+        await self.storage.asave(value, metadata)
+
     def search(
         self,
         query: str,
         limit: int = 5,
         score_threshold: float = 0.6,
     ) -> list[Any]:
-        return self.storage.search(
+        """Search memory for relevant entries.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching memory entries.
+        """
+        results: list[Any] = self.storage.search(
             query=query, limit=limit, score_threshold=score_threshold
         )
+        return results
+
+    async def asearch(
+        self,
+        query: str,
+        limit: int = 5,
+        score_threshold: float = 0.6,
+    ) -> list[Any]:
+        """Search memory for relevant entries asynchronously.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching memory entries.
+        """
+        results: list[Any] = await self.storage.asearch(
+            query=query, limit=limit, score_threshold=score_threshold
+        )
+        return results
 
     def set_crew(self, crew: Any) -> Memory:
+        """Set the crew for this memory instance."""
         self.crew = crew
         return self

lib/crewai/src/crewai/memory/short_term/short_term_memory.py

@@ -30,7 +30,13 @@ class ShortTermMemory(Memory):
 
     _memory_provider: str | None = PrivateAttr()
 
-    def __init__(self, crew=None, embedder_config=None, storage=None, path=None):
+    def __init__(
+        self,
+        crew: Any = None,
+        embedder_config: Any = None,
+        storage: Any = None,
+        path: str | None = None,
+    ) -> None:
         memory_provider = None
         if embedder_config and isinstance(embedder_config, dict):
             memory_provider = embedder_config.get("provider")
@@ -47,7 +53,7 @@ class ShortTermMemory(Memory):
                 if embedder_config and isinstance(embedder_config, dict)
                 else None
             )
-            storage = Mem0Storage(type="short_term", crew=crew, config=config)
+            storage = Mem0Storage(type="short_term", crew=crew, config=config)  # type: ignore[no-untyped-call]
         else:
             storage = (
                 storage
@@ -123,7 +129,17 @@ class ShortTermMemory(Memory):
         query: str,
         limit: int = 5,
         score_threshold: float = 0.6,
-    ):
+    ) -> list[Any]:
+        """Search short-term memory for relevant entries.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching memory entries.
+        """
         crewai_event_bus.emit(
             self,
             event=MemoryQueryStartedEvent(
@@ -140,7 +156,7 @@ class ShortTermMemory(Memory):
         try:
             results = self.storage.search(
                 query=query, limit=limit, score_threshold=score_threshold
-            )  # type: ignore # BUG? The reference is to the parent class, but the parent class does not have this parameters
+            )
 
             crewai_event_bus.emit(
                 self,
@@ -156,7 +172,130 @@ class ShortTermMemory(Memory):
                 ),
             )
 
-            return results
+            return list(results)
+        except Exception as e:
+            crewai_event_bus.emit(
+                self,
+                event=MemoryQueryFailedEvent(
+                    query=query,
+                    limit=limit,
+                    score_threshold=score_threshold,
+                    error=str(e),
+                    source_type="short_term_memory",
+                ),
+            )
+            raise
+
+    async def asave(
+        self,
+        value: Any,
+        metadata: dict[str, Any] | None = None,
+    ) -> None:
+        """Save a value to short-term memory asynchronously.
+
+        Args:
+            value: The value to save.
+            metadata: Optional metadata to associate with the value.
+        """
+        crewai_event_bus.emit(
+            self,
+            event=MemorySaveStartedEvent(
+                value=value,
+                metadata=metadata,
+                source_type="short_term_memory",
+                from_agent=self.agent,
+                from_task=self.task,
+            ),
+        )
+
+        start_time = time.time()
+        try:
+            item = ShortTermMemoryItem(
+                data=value,
+                metadata=metadata,
+                agent=self.agent.role if self.agent else None,
+            )
+            if self._memory_provider == "mem0":
+                item.data = (
+                    f"Remember the following insights from Agent run: {item.data}"
+                )
+
+            await super().asave(value=item.data, metadata=item.metadata)
+
+            crewai_event_bus.emit(
+                self,
+                event=MemorySaveCompletedEvent(
+                    value=value,
+                    metadata=metadata,
+                    save_time_ms=(time.time() - start_time) * 1000,
+                    source_type="short_term_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+        except Exception as e:
+            crewai_event_bus.emit(
+                self,
+                event=MemorySaveFailedEvent(
+                    value=value,
+                    metadata=metadata,
+                    error=str(e),
+                    source_type="short_term_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+            raise
+
+    async def asearch(
+        self,
+        query: str,
+        limit: int = 5,
+        score_threshold: float = 0.6,
+    ) -> list[Any]:
+        """Search short-term memory asynchronously.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching memory entries.
+        """
+        crewai_event_bus.emit(
+            self,
+            event=MemoryQueryStartedEvent(
+                query=query,
+                limit=limit,
+                score_threshold=score_threshold,
+                source_type="short_term_memory",
+                from_agent=self.agent,
+                from_task=self.task,
+            ),
+        )
+
+        start_time = time.time()
+        try:
+            results = await self.storage.asearch(
+                query=query, limit=limit, score_threshold=score_threshold
+            )
+
+            crewai_event_bus.emit(
+                self,
+                event=MemoryQueryCompletedEvent(
+                    query=query,
+                    results=results,
+                    limit=limit,
+                    score_threshold=score_threshold,
+                    query_time_ms=(time.time() - start_time) * 1000,
+                    source_type="short_term_memory",
+                    from_agent=self.agent,
+                    from_task=self.task,
+                ),
+            )
+
+            return list(results)
         except Exception as e:
             crewai_event_bus.emit(
                 self,

lib/crewai/src/crewai/memory/storage/ltm_sqlite_storage.py

@@ -3,29 +3,30 @@ from pathlib import Path
 import sqlite3
 from typing import Any
 
+import aiosqlite
+
 from crewai.utilities import Printer
 from crewai.utilities.paths import db_storage_path
 
 
 class LTMSQLiteStorage:
-    """
-    An updated SQLite storage class for LTM data storage.
-    """
+    """SQLite storage class for long-term memory data."""
 
     def __init__(self, db_path: str | None = None) -> None:
+        """Initialize the SQLite storage.
+
+        Args:
+            db_path: Optional path to the database file.
+        """
         if db_path is None:
-            # Get the parent directory of the default db path and create our db file there
             db_path = str(Path(db_storage_path()) / "long_term_memory_storage.db")
         self.db_path = db_path
         self._printer: Printer = Printer()
-        # Ensure parent directory exists
         Path(self.db_path).parent.mkdir(parents=True, exist_ok=True)
         self._initialize_db()
 
-    def _initialize_db(self):
-        """
-        Initializes the SQLite database and creates LTM table
-        """
+    def _initialize_db(self) -> None:
+        """Initialize the SQLite database and create LTM table."""
         try:
             with sqlite3.connect(self.db_path) as conn:
                 cursor = conn.cursor()
@@ -106,9 +107,7 @@ class LTMSQLiteStorage:
             )
         return None
 
-    def reset(
-        self,
-    ) -> None:
+    def reset(self) -> None:
         """Resets the LTM table with error handling."""
         try:
             with sqlite3.connect(self.db_path) as conn:
@@ -121,4 +120,87 @@ class LTMSQLiteStorage:
                 content=f"MEMORY ERROR: An error occurred while deleting all rows in LTM: {e}",
                 color="red",
             )
-        return
+
+    async def asave(
+        self,
+        task_description: str,
+        metadata: dict[str, Any],
+        datetime: str,
+        score: int | float,
+    ) -> None:
+        """Save data to the LTM table asynchronously.
+
+        Args:
+            task_description: Description of the task.
+            metadata: Metadata associated with the memory.
+            datetime: Timestamp of the memory.
+            score: Quality score of the memory.
+        """
+        try:
+            async with aiosqlite.connect(self.db_path) as conn:
+                await conn.execute(
+                    """
+                    INSERT INTO long_term_memories (task_description, metadata, datetime, score)
+                    VALUES (?, ?, ?, ?)
+                    """,
+                    (task_description, json.dumps(metadata), datetime, score),
+                )
+                await conn.commit()
+        except aiosqlite.Error as e:
+            self._printer.print(
+                content=f"MEMORY ERROR: An error occurred while saving to LTM: {e}",
+                color="red",
+            )
+
+    async def aload(
+        self, task_description: str, latest_n: int
+    ) -> list[dict[str, Any]] | None:
+        """Query the LTM table by task description asynchronously.
+
+        Args:
+            task_description: Description of the task to search for.
+            latest_n: Maximum number of results to return.
+
+        Returns:
+            List of matching memory entries or None if error occurs.
+        """
+        try:
+            async with aiosqlite.connect(self.db_path) as conn:
+                cursor = await conn.execute(
+                    f"""
+                    SELECT metadata, datetime, score
+                    FROM long_term_memories
+                    WHERE task_description = ?
+                    ORDER BY datetime DESC, score ASC
+                    LIMIT {latest_n}
+                    """,  # nosec # noqa: S608
+                    (task_description,),
+                )
+                rows = await cursor.fetchall()
+                if rows:
+                    return [
+                        {
+                            "metadata": json.loads(row[0]),
+                            "datetime": row[1],
+                            "score": row[2],
+                        }
+                        for row in rows
+                    ]
+        except aiosqlite.Error as e:
+            self._printer.print(
+                content=f"MEMORY ERROR: An error occurred while querying LTM: {e}",
+                color="red",
+            )
+        return None
+
+    async def areset(self) -> None:
+        """Reset the LTM table asynchronously."""
+        try:
+            async with aiosqlite.connect(self.db_path) as conn:
+                await conn.execute("DELETE FROM long_term_memories")
+                await conn.commit()
+        except aiosqlite.Error as e:
+            self._printer.print(
+                content=f"MEMORY ERROR: An error occurred while deleting all rows in LTM: {e}",
+                color="red",
+            )

lib/crewai/src/crewai/memory/storage/rag_storage.py

@@ -129,6 +129,12 @@ class RAGStorage(BaseRAGStorage):
         return f"{base_path}/{file_name}"
 
     def save(self, value: Any, metadata: dict[str, Any]) -> None:
+        """Save a value to storage.
+
+        Args:
+            value: The value to save.
+            metadata: Metadata to associate with the value.
+        """
         try:
             client = self._get_client()
             collection_name = (
@@ -167,6 +173,51 @@ class RAGStorage(BaseRAGStorage):
                 f"Error during {self.type} save: {e!s}\n{traceback.format_exc()}"
             )
 
+    async def asave(self, value: Any, metadata: dict[str, Any]) -> None:
+        """Save a value to storage asynchronously.
+
+        Args:
+            value: The value to save.
+            metadata: Metadata to associate with the value.
+        """
+        try:
+            client = self._get_client()
+            collection_name = (
+                f"memory_{self.type}_{self.agents}"
+                if self.agents
+                else f"memory_{self.type}"
+            )
+            await client.aget_or_create_collection(collection_name=collection_name)
+
+            document: BaseRecord = {"content": value}
+            if metadata:
+                document["metadata"] = metadata
+
+            batch_size = None
+            if (
+                self.embedder_config
+                and isinstance(self.embedder_config, dict)
+                and "config" in self.embedder_config
+            ):
+                nested_config = self.embedder_config["config"]
+                if isinstance(nested_config, dict):
+                    batch_size = nested_config.get("batch_size")
+
+            if batch_size is not None:
+                await client.aadd_documents(
+                    collection_name=collection_name,
+                    documents=[document],
+                    batch_size=cast(int, batch_size),
+                )
+            else:
+                await client.aadd_documents(
+                    collection_name=collection_name, documents=[document]
+                )
+        except Exception as e:
+            logging.error(
+                f"Error during {self.type} async save: {e!s}\n{traceback.format_exc()}"
+            )
+
     def search(
         self,
         query: str,
@@ -174,6 +225,17 @@ class RAGStorage(BaseRAGStorage):
         filter: dict[str, Any] | None = None,
         score_threshold: float = 0.6,
     ) -> list[Any]:
+        """Search for matching entries in storage.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            filter: Optional metadata filter.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching entries.
+        """
         try:
             client = self._get_client()
             collection_name = (
@@ -194,6 +256,44 @@ class RAGStorage(BaseRAGStorage):
             )
             return []
 
+    async def asearch(
+        self,
+        query: str,
+        limit: int = 5,
+        filter: dict[str, Any] | None = None,
+        score_threshold: float = 0.6,
+    ) -> list[Any]:
+        """Search for matching entries in storage asynchronously.
+
+        Args:
+            query: The search query.
+            limit: Maximum number of results to return.
+            filter: Optional metadata filter.
+            score_threshold: Minimum similarity score for results.
+
+        Returns:
+            List of matching entries.
+        """
+        try:
+            client = self._get_client()
+            collection_name = (
+                f"memory_{self.type}_{self.agents}"
+                if self.agents
+                else f"memory_{self.type}"
+            )
+            return await client.asearch(
+                collection_name=collection_name,
+                query=query,
+                limit=limit,
+                metadata_filter=filter,
+                score_threshold=score_threshold,
+            )
+        except Exception as e:
+            logging.error(
+                f"Error during {self.type} async search: {e!s}\n{traceback.format_exc()}"
+            )
+            return []
+
     def reset(self) -> None:
         try:
             client = self._get_client()

lib/crewai/src/crewai/project/annotations.py

@@ -2,8 +2,10 @@
 
 from __future__ import annotations
 
+import asyncio
 from collections.abc import Callable
 from functools import wraps
+import inspect
 from typing import TYPE_CHECKING, Any, Concatenate, ParamSpec, TypeVar, overload
 
 from crewai.project.utils import memoize
@@ -156,6 +158,23 @@ def cache_handler(meth: Callable[P, R]) -> CacheHandlerMethod[P, R]:
     return CacheHandlerMethod(memoize(meth))
 
 
+def _call_method(method: Callable[..., Any], *args: Any, **kwargs: Any) -> Any:
+    """Call a method, awaiting it if async and running in an event loop."""
+    result = method(*args, **kwargs)
+    if inspect.iscoroutine(result):
+        try:
+            loop = asyncio.get_running_loop()
+        except RuntimeError:
+            loop = None
+        if loop and loop.is_running():
+            import concurrent.futures
+
+            with concurrent.futures.ThreadPoolExecutor() as pool:
+                return pool.submit(asyncio.run, result).result()
+        return asyncio.run(result)
+    return result
+
+
 @overload
 def crew(
     meth: Callable[Concatenate[SelfT, P], Crew],
@@ -198,7 +217,7 @@ def crew(
 
         # Instantiate tasks in order
         for _, task_method in tasks:
-            task_instance = task_method(self)
+            task_instance = _call_method(task_method, self)
             instantiated_tasks.append(task_instance)
             agent_instance = getattr(task_instance, "agent", None)
             if agent_instance and agent_instance.role not in agent_roles:
@@ -207,7 +226,7 @@ def crew(
 
         # Instantiate agents not included by tasks
         for _, agent_method in agents:
-            agent_instance = agent_method(self)
+            agent_instance = _call_method(agent_method, self)
             if agent_instance.role not in agent_roles:
                 instantiated_agents.append(agent_instance)
                 agent_roles.add(agent_instance.role)
@@ -215,7 +234,7 @@ def crew(
         self.agents = instantiated_agents
         self.tasks = instantiated_tasks
 
-        crew_instance = meth(self, *args, **kwargs)
+        crew_instance: Crew = _call_method(meth, self, *args, **kwargs)
 
         def callback_wrapper(
             hook: Callable[Concatenate[CrewInstance, P2], R2], instance: CrewInstance

lib/crewai/src/crewai/project/utils.py

@@ -1,7 +1,8 @@
 """Utility functions for the crewai project module."""
 
-from collections.abc import Callable
+from collections.abc import Callable, Coroutine
 from functools import wraps
+import inspect
 from typing import Any, ParamSpec, TypeVar, cast
 
 from pydantic import BaseModel
@@ -37,8 +38,8 @@ def _make_hashable(arg: Any) -> Any:
 def memoize(meth: Callable[P, R]) -> Callable[P, R]:
     """Memoize a method by caching its results based on arguments.
 
-    Handles Pydantic BaseModel instances by converting them to JSON strings
-    before hashing for cache lookup.
+    Handles both sync and async methods. Pydantic BaseModel instances are
+    converted to JSON strings before hashing for cache lookup.
 
     Args:
         meth: The method to memoize.
@@ -46,18 +47,16 @@ def memoize(meth: Callable[P, R]) -> Callable[P, R]:
     Returns:
         A memoized version of the method that caches results.
     """
+    if inspect.iscoroutinefunction(meth):
+        return cast(Callable[P, R], _memoize_async(meth))
+    return _memoize_sync(meth)
+
+
+def _memoize_sync(meth: Callable[P, R]) -> Callable[P, R]:
+    """Memoize a synchronous method."""
 
     @wraps(meth)
     def wrapper(*args: P.args, **kwargs: P.kwargs) -> R:
-        """Wrapper that converts arguments to hashable form before caching.
-
-        Args:
-            *args: Positional arguments to the memoized method.
-            **kwargs: Keyword arguments to the memoized method.
-
-        Returns:
-            The result of the memoized method call.
-        """
         hashable_args = tuple(_make_hashable(arg) for arg in args)
         hashable_kwargs = tuple(
             sorted((k, _make_hashable(v)) for k, v in kwargs.items())
@@ -73,3 +72,27 @@ def memoize(meth: Callable[P, R]) -> Callable[P, R]:
         return result
 
     return cast(Callable[P, R], wrapper)
+
+
+def _memoize_async(
+    meth: Callable[P, Coroutine[Any, Any, R]],
+) -> Callable[P, Coroutine[Any, Any, R]]:
+    """Memoize an async method."""
+
+    @wraps(meth)
+    async def wrapper(*args: P.args, **kwargs: P.kwargs) -> R:
+        hashable_args = tuple(_make_hashable(arg) for arg in args)
+        hashable_kwargs = tuple(
+            sorted((k, _make_hashable(v)) for k, v in kwargs.items())
+        )
+        cache_key = str((hashable_args, hashable_kwargs))
+
+        cached_result: R | None = cache.read(tool=meth.__name__, input=cache_key)
+        if cached_result is not None:
+            return cached_result
+
+        result = await meth(*args, **kwargs)
+        cache.add(tool=meth.__name__, input=cache_key, output=result)
+        return result
+
+    return wrapper

lib/crewai/src/crewai/project/wrappers.py

@@ -2,8 +2,10 @@
 
 from __future__ import annotations
 
+import asyncio
 from collections.abc import Callable
 from functools import partial
+import inspect
 from pathlib import Path
 from typing import (
     TYPE_CHECKING,
@@ -132,6 +134,22 @@ class CrewClass(Protocol):
     crew: Callable[..., Crew]
 
 
+def _resolve_result(result: Any) -> Any:
+    """Resolve a potentially async result to its value."""
+    if inspect.iscoroutine(result):
+        try:
+            loop = asyncio.get_running_loop()
+        except RuntimeError:
+            loop = None
+        if loop and loop.is_running():
+            import concurrent.futures
+
+            with concurrent.futures.ThreadPoolExecutor() as pool:
+                return pool.submit(asyncio.run, result).result()
+        return asyncio.run(result)
+    return result
+
+
 class DecoratedMethod(Generic[P, R]):
     """Base wrapper for methods with decorator metadata.
 
@@ -162,7 +180,12 @@ class DecoratedMethod(Generic[P, R]):
         """
         if obj is None:
             return self
-        bound = partial(self._meth, obj)
+        inner = partial(self._meth, obj)
+
+        def _bound(*args: Any, **kwargs: Any) -> R:
+            result: R = _resolve_result(inner(*args, **kwargs))  # type: ignore[call-arg]
+            return result
+
         for attr in (
             "is_agent",
             "is_llm",
@@ -174,8 +197,8 @@ class DecoratedMethod(Generic[P, R]):
             "is_crew",
         ):
             if hasattr(self, attr):
-                setattr(bound, attr, getattr(self, attr))
-        return bound
+                setattr(_bound, attr, getattr(self, attr))
+        return _bound
 
     def __call__(self, *args: P.args, **kwargs: P.kwargs) -> R:
         """Call the wrapped method.
@@ -236,6 +259,7 @@ class BoundTaskMethod(Generic[TaskResultT]):
             The task result with name ensured.
         """
         result = self._task_method.unwrap()(self._obj, *args, **kwargs)
+        result = _resolve_result(result)
         return self._task_method.ensure_task_name(result)
 
 
@@ -292,7 +316,9 @@ class TaskMethod(Generic[P, TaskResultT]):
         Returns:
             The task instance with name set if not already provided.
         """
-        return self.ensure_task_name(self._meth(*args, **kwargs))
+        result = self._meth(*args, **kwargs)
+        result = _resolve_result(result)
+        return self.ensure_task_name(result)
 
     def unwrap(self) -> Callable[P, TaskResultT]:
         """Get the original unwrapped method.

lib/crewai/src/crewai/task.py

@@ -497,6 +497,107 @@ class Task(BaseModel):
         result = self._execute_core(agent, context, tools)
         future.set_result(result)
 
+    async def aexecute_sync(
+        self,
+        agent: BaseAgent | None = None,
+        context: str | None = None,
+        tools: list[BaseTool] | None = None,
+    ) -> TaskOutput:
+        """Execute the task asynchronously using native async/await."""
+        return await self._aexecute_core(agent, context, tools)
+
+    async def _aexecute_core(
+        self,
+        agent: BaseAgent | None,
+        context: str | None,
+        tools: list[Any] | None,
+    ) -> TaskOutput:
+        """Run the core execution logic of the task asynchronously."""
+        try:
+            agent = agent or self.agent
+            self.agent = agent
+            if not agent:
+                raise Exception(
+                    f"The task '{self.description}' has no agent assigned, therefore it can't be executed directly and should be executed in a Crew using a specific process that support that, like hierarchical."
+                )
+
+            self.start_time = datetime.datetime.now()
+
+            self.prompt_context = context
+            tools = tools or self.tools or []
+
+            self.processed_by_agents.add(agent.role)
+            crewai_event_bus.emit(self, TaskStartedEvent(context=context, task=self))  # type: ignore[no-untyped-call]
+            result = await agent.aexecute_task(
+                task=self,
+                context=context,
+                tools=tools,
+            )
+
+            if not self._guardrails and not self._guardrail:
+                pydantic_output, json_output = self._export_output(result)
+            else:
+                pydantic_output, json_output = None, None
+
+            task_output = TaskOutput(
+                name=self.name or self.description,
+                description=self.description,
+                expected_output=self.expected_output,
+                raw=result,
+                pydantic=pydantic_output,
+                json_dict=json_output,
+                agent=agent.role,
+                output_format=self._get_output_format(),
+                messages=agent.last_messages,  # type: ignore[attr-defined]
+            )
+
+            if self._guardrails:
+                for idx, guardrail in enumerate(self._guardrails):
+                    task_output = await self._ainvoke_guardrail_function(
+                        task_output=task_output,
+                        agent=agent,
+                        tools=tools,
+                        guardrail=guardrail,
+                        guardrail_index=idx,
+                    )
+
+            if self._guardrail:
+                task_output = await self._ainvoke_guardrail_function(
+                    task_output=task_output,
+                    agent=agent,
+                    tools=tools,
+                    guardrail=self._guardrail,
+                )
+
+            self.output = task_output
+            self.end_time = datetime.datetime.now()
+
+            if self.callback:
+                self.callback(self.output)
+
+            crew = self.agent.crew  # type: ignore[union-attr]
+            if crew and crew.task_callback and crew.task_callback != self.callback:
+                crew.task_callback(self.output)
+
+            if self.output_file:
+                content = (
+                    json_output
+                    if json_output
+                    else (
+                        pydantic_output.model_dump_json() if pydantic_output else result
+                    )
+                )
+                self._save_file(content)
+            crewai_event_bus.emit(
+                self,
+                TaskCompletedEvent(output=task_output, task=self),  # type: ignore[no-untyped-call]
+            )
+            return task_output
+        except Exception as e:
+            self.end_time = datetime.datetime.now()
+            crewai_event_bus.emit(self, TaskFailedEvent(error=str(e), task=self))  # type: ignore[no-untyped-call]
+            raise e  # Re-raise the exception after emitting the event
+
     def _execute_core(
         self,
         agent: BaseAgent | None,
@@ -539,7 +640,7 @@ class Task(BaseModel):
                 json_dict=json_output,
                 agent=agent.role,
                 output_format=self._get_output_format(),
-                messages=agent.last_messages,
+                messages=agent.last_messages,  # type: ignore[attr-defined]
             )
 
             if self._guardrails:
@@ -950,7 +1051,103 @@ Follow these guidelines:
                 json_dict=json_output,
                 agent=agent.role,
                 output_format=self._get_output_format(),
-                messages=agent.last_messages,
+                messages=agent.last_messages,  # type: ignore[attr-defined]
+            )
+
+        return task_output
+
+    async def _ainvoke_guardrail_function(
+        self,
+        task_output: TaskOutput,
+        agent: BaseAgent,
+        tools: list[BaseTool],
+        guardrail: GuardrailCallable | None,
+        guardrail_index: int | None = None,
+    ) -> TaskOutput:
+        """Invoke the guardrail function asynchronously."""
+        if not guardrail:
+            return task_output
+
+        if guardrail_index is not None:
+            current_retry_count = self._guardrail_retry_counts.get(guardrail_index, 0)
+        else:
+            current_retry_count = self.retry_count
+
+        max_attempts = self.guardrail_max_retries + 1
+
+        for attempt in range(max_attempts):
+            guardrail_result = process_guardrail(
+                output=task_output,
+                guardrail=guardrail,
+                retry_count=current_retry_count,
+                event_source=self,
+                from_task=self,
+                from_agent=agent,
+            )
+
+            if guardrail_result.success:
+                if guardrail_result.result is None:
+                    raise Exception(
+                        "Task guardrail returned None as result. This is not allowed."
+                    )
+
+                if isinstance(guardrail_result.result, str):
+                    task_output.raw = guardrail_result.result
+                    pydantic_output, json_output = self._export_output(
+                        guardrail_result.result
+                    )
+                    task_output.pydantic = pydantic_output
+                    task_output.json_dict = json_output
+                elif isinstance(guardrail_result.result, TaskOutput):
+                    task_output = guardrail_result.result
+
+                return task_output
+
+            if attempt >= self.guardrail_max_retries:
+                guardrail_name = (
+                    f"guardrail {guardrail_index}"
+                    if guardrail_index is not None
+                    else "guardrail"
+                )
+                raise Exception(
+                    f"Task failed {guardrail_name} validation after {self.guardrail_max_retries} retries. "
+                    f"Last error: {guardrail_result.error}"
+                )
+
+            if guardrail_index is not None:
+                current_retry_count += 1
+                self._guardrail_retry_counts[guardrail_index] = current_retry_count
+            else:
+                self.retry_count += 1
+                current_retry_count = self.retry_count
+
+            context = self.i18n.errors("validation_error").format(
+                guardrail_result_error=guardrail_result.error,
+                task_output=task_output.raw,
+            )
+            printer = Printer()
+            printer.print(
+                content=f"Guardrail {guardrail_index if guardrail_index is not None else ''} blocked (attempt {attempt + 1}/{max_attempts}), retrying due to: {guardrail_result.error}\n",
+                color="yellow",
+            )
+
+            result = await agent.aexecute_task(
+                task=self,
+                context=context,
+                tools=tools,
+            )
+
+            pydantic_output, json_output = self._export_output(result)
+            task_output = TaskOutput(
+                name=self.name or self.description,
+                description=self.description,
+                expected_output=self.expected_output,
+                raw=result,
+                pydantic=pydantic_output,
+                json_dict=json_output,
+                agent=agent.role,
+                output_format=self._get_output_format(),
+                messages=agent.last_messages,  # type: ignore[attr-defined]
             )
 
         return task_output

lib/crewai/src/crewai/telemetry/telemetry.py

@@ -9,12 +9,14 @@ data is collected. Users can opt-in to share more complete data using the
 from __future__ import annotations
 
 import asyncio
+import atexit
 from collections.abc import Callable
 from importlib.metadata import version
 import json
 import logging
 import os
 import platform
+import signal
 import threading
 from typing import TYPE_CHECKING, Any
 
@@ -31,6 +33,14 @@ from opentelemetry.sdk.trace.export import (
 from opentelemetry.trace import Span
 from typing_extensions import Self
 
+from crewai.events.event_bus import crewai_event_bus
+from crewai.events.types.system_events import (
+    SigContEvent,
+    SigHupEvent,
+    SigIntEvent,
+    SigTStpEvent,
+    SigTermEvent,
+)
 from crewai.telemetry.constants import (
     CREWAI_TELEMETRY_BASE_URL,
     CREWAI_TELEMETRY_SERVICE_NAME,
@@ -121,6 +131,7 @@ class Telemetry:
             )
 
             self.provider.add_span_processor(processor)
+            self._register_shutdown_handlers()
             self.ready = True
         except Exception as e:
             if isinstance(
@@ -155,6 +166,71 @@ class Telemetry:
                 self.ready = False
                 self.trace_set = False
 
+    def _register_shutdown_handlers(self) -> None:
+        """Register handlers for graceful shutdown on process exit and signals."""
+        atexit.register(self._shutdown)
+
+        self._original_handlers: dict[int, Any] = {}
+
+        self._register_signal_handler(signal.SIGTERM, SigTermEvent, shutdown=True)
+        self._register_signal_handler(signal.SIGINT, SigIntEvent, shutdown=True)
+        self._register_signal_handler(signal.SIGHUP, SigHupEvent, shutdown=False)
+        self._register_signal_handler(signal.SIGTSTP, SigTStpEvent, shutdown=False)
+        self._register_signal_handler(signal.SIGCONT, SigContEvent, shutdown=False)
+
+    def _register_signal_handler(
+        self,
+        sig: signal.Signals,
+        event_class: type,
+        shutdown: bool = False,
+    ) -> None:
+        """Register a signal handler that emits an event.
+
+        Args:
+            sig: The signal to handle.
+            event_class: The event class to instantiate and emit.
+            shutdown: Whether to trigger shutdown on this signal.
+        """
+        try:
+            original_handler = signal.getsignal(sig)
+            self._original_handlers[sig] = original_handler
+
+            def handler(signum: int, frame: Any) -> None:
+                crewai_event_bus.emit(self, event_class())
+
+                if shutdown:
+                    self._shutdown()
+
+                if original_handler not in (signal.SIG_DFL, signal.SIG_IGN, None):
+                    if callable(original_handler):
+                        original_handler(signum, frame)
+                elif shutdown:
+                    raise SystemExit(0)
+
+            signal.signal(sig, handler)
+        except ValueError as e:
+            logger.warning(
+                f"Cannot register {sig.name} handler: not running in main thread",
+                exc_info=e,
+            )
+        except OSError as e:
+            logger.warning(f"Cannot register {sig.name} handler: {e}", exc_info=e)
+
+    def _shutdown(self) -> None:
+        """Flush and shutdown the telemetry provider on process exit.
+
+        Uses a short timeout to avoid blocking process shutdown.
+        """
+        if not self.ready:
+            return
+
+        try:
+            self.provider.force_flush(timeout_millis=5000)
+            self.provider.shutdown()
+            self.ready = False
+        except Exception as e:
+            logger.debug(f"Telemetry shutdown failed: {e}")
+
     def _safe_telemetry_operation(
         self, operation: Callable[[], Span | None]
     ) -> Span | None:

lib/crewai/src/crewai/tools/base_tool.py

@@ -2,9 +2,18 @@ from __future__ import annotations
 
 from abc import ABC, abstractmethod
 import asyncio
-from collections.abc import Callable
+from collections.abc import Awaitable, Callable
 from inspect import signature
-from typing import Any, cast, get_args, get_origin
+from typing import (
+    Any,
+    Generic,
+    ParamSpec,
+    TypeVar,
+    cast,
+    get_args,
+    get_origin,
+    overload,
+)
 
 from pydantic import (
     BaseModel,
@@ -14,6 +23,7 @@ from pydantic import (
     create_model,
     field_validator,
 )
+from typing_extensions import TypeIs
 
 from crewai.tools.structured_tool import CrewStructuredTool
 from crewai.utilities.printer import Printer
@@ -21,6 +31,19 @@ from crewai.utilities.printer import Printer
 
 _printer = Printer()
 
+P = ParamSpec("P")
+R = TypeVar("R", covariant=True)
+
+
+def _is_async_callable(func: Callable[..., Any]) -> bool:
+    """Check if a callable is async."""
+    return asyncio.iscoroutinefunction(func)
+
+
+def _is_awaitable(value: R | Awaitable[R]) -> TypeIs[Awaitable[R]]:
+    """Type narrowing check for awaitable values."""
+    return asyncio.iscoroutine(value) or asyncio.isfuture(value)
+
 
 class EnvVar(BaseModel):
     name: str
@@ -55,7 +78,7 @@ class BaseTool(BaseModel, ABC):
         default=False, description="Flag to check if the description has been updated."
     )
 
-    cache_function: Callable = Field(
+    cache_function: Callable[..., bool] = Field(
         default=lambda _args=None, _result=None: True,
         description="Function that will be used to determine if the tool should be cached, should return a boolean. If None, the tool will be cached.",
     )
@@ -123,6 +146,35 @@ class BaseTool(BaseModel, ABC):
 
         return result
 
+    async def arun(
+        self,
+        *args: Any,
+        **kwargs: Any,
+    ) -> Any:
+        """Execute the tool asynchronously.
+
+        Args:
+            *args: Positional arguments to pass to the tool.
+            **kwargs: Keyword arguments to pass to the tool.
+
+        Returns:
+            The result of the tool execution.
+        """
+        result = await self._arun(*args, **kwargs)
+        self.current_usage_count += 1
+        return result
+
+    async def _arun(
+        self,
+        *args: Any,
+        **kwargs: Any,
+    ) -> Any:
+        """Async implementation of the tool. Override for async support."""
+        raise NotImplementedError(
+            f"{self.__class__.__name__} does not implement _arun. "
+            "Override _arun for async support or use run() for sync execution."
+        )
+
     def reset_usage_count(self) -> None:
         """Reset the current usage count to zero."""
         self.current_usage_count = 0
@@ -133,7 +185,17 @@ class BaseTool(BaseModel, ABC):
         *args: Any,
         **kwargs: Any,
     ) -> Any:
-        """Here goes the actual implementation of the tool."""
+        """Sync implementation of the tool.
+
+        Subclasses must implement this method for synchronous execution.
+
+        Args:
+            *args: Positional arguments for the tool.
+            **kwargs: Keyword arguments for the tool.
+
+        Returns:
+            The result of the tool execution.
+        """
 
     def to_structured_tool(self) -> CrewStructuredTool:
         """Convert this tool to a CrewStructuredTool instance."""
@@ -239,21 +301,90 @@ class BaseTool(BaseModel, ABC):
 
         if args:
             args_str = ", ".join(BaseTool._get_arg_annotations(arg) for arg in args)
-            return f"{origin.__name__}[{args_str}]"
+            return str(f"{origin.__name__}[{args_str}]")
 
-        return origin.__name__
+        return str(origin.__name__)
 
 
-class Tool(BaseTool):
-    """The function that will be executed when the tool is called."""
+class Tool(BaseTool, Generic[P, R]):
+    """Tool that wraps a callable function.
 
-    func: Callable
 
-    def _run(self, *args: Any, **kwargs: Any) -> Any:
-        return self.func(*args, **kwargs)
+    Type Parameters:
+        P: ParamSpec capturing the function's parameters.
+        R: The return type of the function.
+    """
+
+    func: Callable[P, R | Awaitable[R]]
+
+    def run(self, *args: P.args, **kwargs: P.kwargs) -> R:
+        """Executes the tool synchronously.
+
+        Args:
+            *args: Positional arguments for the tool.
+            **kwargs: Keyword arguments for the tool.
+
+        Returns:
+            The result of the tool execution.
+        """
+        _printer.print(f"Using Tool: {self.name}", color="cyan")
+        result = self.func(*args, **kwargs)
+
+        if asyncio.iscoroutine(result):
+            result = asyncio.run(result)
+
+        self.current_usage_count += 1
+        return result  # type: ignore[return-value]
+
+    def _run(self, *args: P.args, **kwargs: P.kwargs) -> R:
+        """Executes the wrapped function.
+
+        Args:
+            *args: Positional arguments for the function.
+            **kwargs: Keyword arguments for the function.
+
+        Returns:
+            The result of the function execution.
+        """
+        return self.func(*args, **kwargs)  # type: ignore[return-value]
+
+    async def arun(self, *args: P.args, **kwargs: P.kwargs) -> R:
+        """Executes the tool asynchronously.
+
+        Args:
+            *args: Positional arguments for the tool.
+            **kwargs: Keyword arguments for the tool.
+
+        Returns:
+            The result of the tool execution.
+        """
+        result = await self._arun(*args, **kwargs)
+        self.current_usage_count += 1
+        return result
+
+    async def _arun(self, *args: P.args, **kwargs: P.kwargs) -> R:
+        """Executes the wrapped function asynchronously.
+
+        Args:
+            *args: Positional arguments for the function.
+            **kwargs: Keyword arguments for the function.
+
+        Returns:
+            The result of the async function execution.
+
+        Raises:
+            NotImplementedError: If the wrapped function is not async.
+        """
+        result = self.func(*args, **kwargs)
+        if _is_awaitable(result):
+            return await result
+        raise NotImplementedError(
+            f"{self.name} does not have an async function. "
+            "Use run() for sync execution or provide an async function."
+        )
 
     @classmethod
-    def from_langchain(cls, tool: Any) -> Tool:
+    def from_langchain(cls, tool: Any) -> Tool[..., Any]:
         """Create a Tool instance from a CrewStructuredTool.
 
         This method takes a CrewStructuredTool object and converts it into a
@@ -261,10 +392,10 @@ class Tool(BaseTool):
         attribute and infers the argument schema if not explicitly provided.
 
         Args:
-            tool (Any): The CrewStructuredTool object to be converted.
+            tool: The CrewStructuredTool object to be converted.
 
         Returns:
-            Tool: A new Tool instance created from the provided CrewStructuredTool.
+            A new Tool instance created from the provided CrewStructuredTool.
 
         Raises:
             ValueError: If the provided tool does not have a callable 'func' attribute.
@@ -308,37 +439,83 @@ class Tool(BaseTool):
 def to_langchain(
     tools: list[BaseTool | CrewStructuredTool],
 ) -> list[CrewStructuredTool]:
+    """Convert a list of tools to CrewStructuredTool instances."""
     return [t.to_structured_tool() if isinstance(t, BaseTool) else t for t in tools]
 
 
+P2 = ParamSpec("P2")
+R2 = TypeVar("R2")
+
+
+@overload
+def tool(func: Callable[P2, R2], /) -> Tool[P2, R2]: ...
+
+
+@overload
 def tool(
-    *args, result_as_answer: bool = False, max_usage_count: int | None = None
-) -> Callable:
-    """
-    Decorator to create a tool from a function.
+    name: str,
+    /,
+    *,
+    result_as_answer: bool = ...,
+    max_usage_count: int | None = ...,
+) -> Callable[[Callable[P2, R2]], Tool[P2, R2]]: ...
+
+
+@overload
+def tool(
+    *,
+    result_as_answer: bool = ...,
+    max_usage_count: int | None = ...,
+) -> Callable[[Callable[P2, R2]], Tool[P2, R2]]: ...
+
+
+def tool(
+    *args: Callable[P2, R2] | str,
+    result_as_answer: bool = False,
+    max_usage_count: int | None = None,
+) -> Tool[P2, R2] | Callable[[Callable[P2, R2]], Tool[P2, R2]]:
+    """Decorator to create a Tool from a function.
+
+    Can be used in three ways:
+    1. @tool - decorator without arguments, uses function name
+    2. @tool("name") - decorator with custom name
+    3. @tool(result_as_answer=True) - decorator with options
 
     Args:
-        *args: Positional arguments, either the function to decorate or the tool name.
-        result_as_answer: Flag to indicate if the tool result should be used as the final agent answer.
-        max_usage_count: Maximum number of times this tool can be used. None means unlimited usage.
+        *args: Either the function to decorate or a custom tool name.
+        result_as_answer: If True, the tool result becomes the final agent answer.
+        max_usage_count: Maximum times this tool can be used. None means unlimited.
+
+    Returns:
+        A Tool instance.
+
+    Example:
+        @tool
+        def greet(name: str) -> str:
+            '''Greet someone.'''
+            return f"Hello, {name}!"
+
+        result = greet.run("World")
     """
 
-    def _make_with_name(tool_name: str) -> Callable:
-        def _make_tool(f: Callable) -> BaseTool:
+    def _make_with_name(tool_name: str) -> Callable[[Callable[P2, R2]], Tool[P2, R2]]:
+        def _make_tool(f: Callable[P2, R2]) -> Tool[P2, R2]:
             if f.__doc__ is None:
                 raise ValueError("Function must have a docstring")
-            if f.__annotations__ is None:
+
+            func_annotations = getattr(f, "__annotations__", None)
+            if func_annotations is None:
                 raise ValueError("Function must have type annotations")
 
             class_name = "".join(tool_name.split()).title()
-            args_schema = cast(
+            tool_args_schema = cast(
                 type[PydanticBaseModel],
                 type(
                     class_name,
                     (PydanticBaseModel,),
                     {
                         "__annotations__": {
-                            k: v for k, v in f.__annotations__.items() if k != "return"
+                            k: v for k, v in func_annotations.items() if k != "return"
                         },
                     },
                 ),
@@ -348,10 +525,9 @@ def tool(
                 name=tool_name,
                 description=f.__doc__,
                 func=f,
-                args_schema=args_schema,
+                args_schema=tool_args_schema,
                 result_as_answer=result_as_answer,
                 max_usage_count=max_usage_count,
-                current_usage_count=0,
             )
 
         return _make_tool
@@ -360,4 +536,10 @@ def tool(
         return _make_with_name(args[0].__name__)(args[0])
     if len(args) == 1 and isinstance(args[0], str):
         return _make_with_name(args[0])
+    if len(args) == 0:
+
+        def decorator(f: Callable[P2, R2]) -> Tool[P2, R2]:
+            return _make_with_name(f.__name__)(f)
+
+        return decorator
     raise ValueError("Invalid arguments")

lib/crewai/src/crewai/tools/tool_usage.py

@@ -160,6 +160,251 @@ class ToolUsage:
 
         return f"{self._use(tool_string=tool_string, tool=tool, calling=calling)}"
 
+    async def ause(
+        self, calling: ToolCalling | InstructorToolCalling, tool_string: str
+    ) -> str:
+        """Execute a tool asynchronously.
+
+        Args:
+            calling: The tool calling information.
+            tool_string: The raw tool string from the agent.
+
+        Returns:
+            The result of the tool execution as a string.
+        """
+        if isinstance(calling, ToolUsageError):
+            error = calling.message
+            if self.agent and self.agent.verbose:
+                self._printer.print(content=f"\n\n{error}\n", color="red")
+            if self.task:
+                self.task.increment_tools_errors()
+            return error
+
+        try:
+            tool = self._select_tool(calling.tool_name)
+        except Exception as e:
+            error = getattr(e, "message", str(e))
+            if self.task:
+                self.task.increment_tools_errors()
+            if self.agent and self.agent.verbose:
+                self._printer.print(content=f"\n\n{error}\n", color="red")
+            return error
+
+        if (
+            isinstance(tool, CrewStructuredTool)
+            and tool.name == self._i18n.tools("add_image")["name"]  # type: ignore
+        ):
+            try:
+                return await self._ause(
+                    tool_string=tool_string, tool=tool, calling=calling
+                )
+            except Exception as e:
+                error = getattr(e, "message", str(e))
+                if self.task:
+                    self.task.increment_tools_errors()
+                if self.agent and self.agent.verbose:
+                    self._printer.print(content=f"\n\n{error}\n", color="red")
+                return error
+
+        return (
+            f"{await self._ause(tool_string=tool_string, tool=tool, calling=calling)}"
+        )
+
+    async def _ause(
+        self,
+        tool_string: str,
+        tool: CrewStructuredTool,
+        calling: ToolCalling | InstructorToolCalling,
+    ) -> str:
+        """Internal async tool execution implementation.
+
+        Args:
+            tool_string: The raw tool string from the agent.
+            tool: The tool to execute.
+            calling: The tool calling information.
+
+        Returns:
+            The result of the tool execution as a string.
+        """
+        if self._check_tool_repeated_usage(calling=calling):
+            try:
+                result = self._i18n.errors("task_repeated_usage").format(
+                    tool_names=self.tools_names
+                )
+                self._telemetry.tool_repeated_usage(
+                    llm=self.function_calling_llm,
+                    tool_name=tool.name,
+                    attempts=self._run_attempts,
+                )
+                return self._format_result(result=result)
+            except Exception:
+                if self.task:
+                    self.task.increment_tools_errors()
+
+        if self.agent:
+            event_data = {
+                "agent_key": self.agent.key,
+                "agent_role": self.agent.role,
+                "tool_name": self.action.tool,
+                "tool_args": self.action.tool_input,
+                "tool_class": self.action.tool,
+                "agent": self.agent,
+            }
+
+            if self.agent.fingerprint:  # type: ignore
+                event_data.update(self.agent.fingerprint)  # type: ignore
+            if self.task:
+                event_data["task_name"] = self.task.name or self.task.description
+                event_data["task_id"] = str(self.task.id)
+            crewai_event_bus.emit(self, ToolUsageStartedEvent(**event_data))
+
+        started_at = time.time()
+        from_cache = False
+        result = None  # type: ignore
+
+        if self.tools_handler and self.tools_handler.cache:
+            input_str = ""
+            if calling.arguments:
+                if isinstance(calling.arguments, dict):
+                    input_str = json.dumps(calling.arguments)
+                else:
+                    input_str = str(calling.arguments)
+
+            result = self.tools_handler.cache.read(
+                tool=calling.tool_name, input=input_str
+            )  # type: ignore
+            from_cache = result is not None
+
+        available_tool = next(
+            (
+                available_tool
+                for available_tool in self.tools
+                if available_tool.name == tool.name
+            ),
+            None,
+        )
+
+        usage_limit_error = self._check_usage_limit(available_tool, tool.name)
+        if usage_limit_error:
+            try:
+                result = usage_limit_error
+                self._telemetry.tool_usage_error(llm=self.function_calling_llm)
+                return self._format_result(result=result)
+            except Exception:
+                if self.task:
+                    self.task.increment_tools_errors()
+
+        if result is None:
+            try:
+                if calling.tool_name in [
+                    "Delegate work to coworker",
+                    "Ask question to coworker",
+                ]:
+                    coworker = (
+                        calling.arguments.get("coworker") if calling.arguments else None
+                    )
+                    if self.task:
+                        self.task.increment_delegations(coworker)
+
+                if calling.arguments:
+                    try:
+                        acceptable_args = tool.args_schema.model_json_schema()[
+                            "properties"
+                        ].keys()
+                        arguments = {
+                            k: v
+                            for k, v in calling.arguments.items()
+                            if k in acceptable_args
+                        }
+                        arguments = self._add_fingerprint_metadata(arguments)
+                        result = await tool.ainvoke(input=arguments)
+                    except Exception:
+                        arguments = calling.arguments
+                        arguments = self._add_fingerprint_metadata(arguments)
+                        result = await tool.ainvoke(input=arguments)
+                else:
+                    arguments = self._add_fingerprint_metadata({})
+                    result = await tool.ainvoke(input=arguments)
+            except Exception as e:
+                self.on_tool_error(tool=tool, tool_calling=calling, e=e)
+                self._run_attempts += 1
+                if self._run_attempts > self._max_parsing_attempts:
+                    self._telemetry.tool_usage_error(llm=self.function_calling_llm)
+                    error_message = self._i18n.errors("tool_usage_exception").format(
+                        error=e, tool=tool.name, tool_inputs=tool.description
+                    )
+                    error = ToolUsageError(
+                        f"\n{error_message}.\nMoving on then. {self._i18n.slice('format').format(tool_names=self.tools_names)}"
+                    ).message
+                    if self.task:
+                        self.task.increment_tools_errors()
+                    if self.agent and self.agent.verbose:
+                        self._printer.print(
+                            content=f"\n\n{error_message}\n", color="red"
+                        )
+                    return error
+
+                if self.task:
+                    self.task.increment_tools_errors()
+                return await self.ause(calling=calling, tool_string=tool_string)
+
+            if self.tools_handler:
+                should_cache = True
+                if (
+                    hasattr(available_tool, "cache_function")
+                    and available_tool.cache_function
+                ):
+                    should_cache = available_tool.cache_function(
+                        calling.arguments, result
+                    )
+
+                self.tools_handler.on_tool_use(
+                    calling=calling, output=result, should_cache=should_cache
+                )
+
+        self._telemetry.tool_usage(
+            llm=self.function_calling_llm,
+            tool_name=tool.name,
+            attempts=self._run_attempts,
+        )
+        result = self._format_result(result=result)
+        data = {
+            "result": result,
+            "tool_name": tool.name,
+            "tool_args": calling.arguments,
+        }
+
+        self.on_tool_use_finished(
+            tool=tool,
+            tool_calling=calling,
+            from_cache=from_cache,
+            started_at=started_at,
+            result=result,
+        )
+
+        if (
+            hasattr(available_tool, "result_as_answer")
+            and available_tool.result_as_answer  # type: ignore
+        ):
+            result_as_answer = available_tool.result_as_answer  # type: ignore
+            data["result_as_answer"] = result_as_answer  # type: ignore
+
+        if self.agent and hasattr(self.agent, "tools_results"):
+            self.agent.tools_results.append(data)
+
+        if available_tool and hasattr(available_tool, "current_usage_count"):
+            available_tool.current_usage_count += 1
+            if (
+                hasattr(available_tool, "max_usage_count")
+                and available_tool.max_usage_count is not None
+            ):
+                self._printer.print(
+                    content=f"Tool '{available_tool.name}' usage: {available_tool.current_usage_count}/{available_tool.max_usage_count}",
+                    color="blue",
+                )
+
+        return result
+
     def _use(
         self,
         tool_string: str,

lib/crewai/src/crewai/utilities/agent_utils.py

@@ -242,17 +242,17 @@ def get_llm_response(
     """Call the LLM and return the response, handling any invalid responses.
 
     Args:
-        llm: The LLM instance to call
-        messages: The messages to send to the LLM
-        callbacks: List of callbacks for the LLM call
-        printer: Printer instance for output
-        from_task: Optional task context for the LLM call
-        from_agent: Optional agent context for the LLM call
-        response_model: Optional Pydantic model for structured outputs
-        executor_context: Optional executor context for hook invocation
+        llm: The LLM instance to call.
+        messages: The messages to send to the LLM.
+        callbacks: List of callbacks for the LLM call.
+        printer: Printer instance for output.
+        from_task: Optional task context for the LLM call.
+        from_agent: Optional agent context for the LLM call.
+        response_model: Optional Pydantic model for structured outputs.
+        executor_context: Optional executor context for hook invocation.
 
     Returns:
-        The response from the LLM as a string
+        The response from the LLM as a string.
 
     Raises:
         Exception: If an error occurs.
@@ -284,6 +284,60 @@ def get_llm_response(
     return _setup_after_llm_call_hooks(executor_context, answer, printer)
 
 
+async def aget_llm_response(
+    llm: LLM | BaseLLM,
+    messages: list[LLMMessage],
+    callbacks: list[TokenCalcHandler],
+    printer: Printer,
+    from_task: Task | None = None,
+    from_agent: Agent | LiteAgent | None = None,
+    response_model: type[BaseModel] | None = None,
+    executor_context: CrewAgentExecutor | None = None,
+) -> str:
+    """Call the LLM asynchronously and return the response.
+
+    Args:
+        llm: The LLM instance to call.
+        messages: The messages to send to the LLM.
+        callbacks: List of callbacks for the LLM call.
+        printer: Printer instance for output.
+        from_task: Optional task context for the LLM call.
+        from_agent: Optional agent context for the LLM call.
+        response_model: Optional Pydantic model for structured outputs.
+        executor_context: Optional executor context for hook invocation.
+
+    Returns:
+        The response from the LLM as a string.
+
+    Raises:
+        Exception: If an error occurs.
+        ValueError: If the response is None or empty.
+    """
+    if executor_context is not None:
+        if not _setup_before_llm_call_hooks(executor_context, printer):
+            raise ValueError("LLM call blocked by before_llm_call hook")
+        messages = executor_context.messages
+
+    try:
+        answer = await llm.acall(
+            messages,
+            callbacks=callbacks,
+            from_task=from_task,
+            from_agent=from_agent,  # type: ignore[arg-type]
+            response_model=response_model,
+        )
+    except Exception as e:
+        raise e
+    if not answer:
+        printer.print(
+            content="Received None or empty response from LLM call.",
+            color="red",
+        )
+        raise ValueError("Invalid response from LLM call - None or empty.")
+
+    return _setup_after_llm_call_hooks(executor_context, answer, printer)
+
+
 def process_llm_response(
     answer: str, use_stop_words: bool
 ) -> AgentAction | AgentFinish:

lib/crewai/src/crewai/utilities/tool_utils.py

@@ -26,6 +26,138 @@ if TYPE_CHECKING:
     from crewai.task import Task
 
 
+async def aexecute_tool_and_check_finality(
+    agent_action: AgentAction,
+    tools: list[CrewStructuredTool],
+    i18n: I18N,
+    agent_key: str | None = None,
+    agent_role: str | None = None,
+    tools_handler: ToolsHandler | None = None,
+    task: Task | None = None,
+    agent: Agent | BaseAgent | None = None,
+    function_calling_llm: BaseLLM | LLM | None = None,
+    fingerprint_context: dict[str, str] | None = None,
+    crew: Crew | None = None,
+) -> ToolResult:
+    """Execute a tool asynchronously and check if the result should be a final answer.
+
+    This is the async version of execute_tool_and_check_finality. It integrates tool
+    hooks for before and after tool execution, allowing programmatic interception
+    and modification of tool calls.
+
+    Args:
+        agent_action: The action containing the tool to execute.
+        tools: List of available tools.
+        i18n: Internationalization settings.
+        agent_key: Optional key for event emission.
+        agent_role: Optional role for event emission.
+        tools_handler: Optional tools handler for tool execution.
+        task: Optional task for tool execution.
+        agent: Optional agent instance for tool execution.
+        function_calling_llm: Optional LLM for function calling.
+        fingerprint_context: Optional context for fingerprinting.
+        crew: Optional crew instance for hook context.
+
+    Returns:
+        ToolResult containing the execution result and whether it should be
+        treated as a final answer.
+    """
+    logger = Logger(verbose=crew.verbose if crew else False)
+    tool_name_to_tool_map = {tool.name: tool for tool in tools}
+
+    if agent_key and agent_role and agent:
+        fingerprint_context = fingerprint_context or {}
+        if agent:
+            if hasattr(agent, "set_fingerprint") and callable(agent.set_fingerprint):
+                if isinstance(fingerprint_context, dict):
+                    try:
+                        fingerprint_obj = Fingerprint.from_dict(fingerprint_context)
+                        agent.set_fingerprint(fingerprint=fingerprint_obj)
+                    except Exception as e:
+                        raise ValueError(f"Failed to set fingerprint: {e}") from e
+
+    tool_usage = ToolUsage(
+        tools_handler=tools_handler,
+        tools=tools,
+        function_calling_llm=function_calling_llm,  # type: ignore[arg-type]
+        task=task,
+        agent=agent,
+        action=agent_action,
+    )
+
+    tool_calling = tool_usage.parse_tool_calling(agent_action.text)
+
+    if isinstance(tool_calling, ToolUsageError):
+        return ToolResult(tool_calling.message, False)
+
+    if tool_calling.tool_name.casefold().strip() in [
+        name.casefold().strip() for name in tool_name_to_tool_map
+    ] or tool_calling.tool_name.casefold().replace("_", " ") in [
+        name.casefold().strip() for name in tool_name_to_tool_map
+    ]:
+        tool = tool_name_to_tool_map.get(tool_calling.tool_name)
+        if not tool:
+            tool_result = i18n.errors("wrong_tool_name").format(
+                tool=tool_calling.tool_name,
+                tools=", ".join([t.name.casefold() for t in tools]),
+            )
+            return ToolResult(result=tool_result, result_as_answer=False)
+
+        tool_input = tool_calling.arguments if tool_calling.arguments else {}
+        hook_context = ToolCallHookContext(
+            tool_name=tool_calling.tool_name,
+            tool_input=tool_input,
+            tool=tool,
+            agent=agent,
+            task=task,
+            crew=crew,
+        )
+
+        before_hooks = get_before_tool_call_hooks()
+        try:
+            for hook in before_hooks:
+                result = hook(hook_context)
+                if result is False:
+                    blocked_message = (
+                        f"Tool execution blocked by hook. "
+                        f"Tool: {tool_calling.tool_name}"
+                    )
+                    return ToolResult(blocked_message, False)
+        except Exception as e:
+            logger.log("error", f"Error in before_tool_call hook: {e}")
+
+        tool_result = await tool_usage.ause(tool_calling, agent_action.text)
+
+        after_hook_context = ToolCallHookContext(
+            tool_name=tool_calling.tool_name,
+            tool_input=tool_input,
+            tool=tool,
+            agent=agent,
+            task=task,
+            crew=crew,
+            tool_result=tool_result,
+        )
+
+        after_hooks = get_after_tool_call_hooks()
+        modified_result: str = tool_result
+        try:
+            for after_hook in after_hooks:
+                hook_result = after_hook(after_hook_context)
+                if hook_result is not None:
+                    modified_result = hook_result
+                    after_hook_context.tool_result = modified_result
+        except Exception as e:
+            logger.log("error", f"Error in after_tool_call hook: {e}")
+
+        return ToolResult(modified_result, tool.result_as_answer)
+
+    tool_result = i18n.errors("wrong_tool_name").format(
+        tool=tool_calling.tool_name,
+        tools=", ".join([tool.name.casefold() for tool in tools]),
+    )
+    return ToolResult(result=tool_result, result_as_answer=False)
+
+
 def execute_tool_and_check_finality(
     agent_action: AgentAction,
     tools: list[CrewStructuredTool],
@@ -141,10 +273,10 @@ def execute_tool_and_check_finality(
 
         # Execute after_tool_call hooks
         after_hooks = get_after_tool_call_hooks()
-        modified_result = tool_result
+        modified_result: str = tool_result
         try:
-            for hook in after_hooks:
-                hook_result = hook(after_hook_context)
+            for after_hook in after_hooks:
+                hook_result = after_hook(after_hook_context)
                 if hook_result is not None:
                     modified_result = hook_result
                     after_hook_context.tool_result = modified_result

lib/crewai/tests/agents/agent_adapters/test_base_agent_adapter.py

@@ -51,6 +51,15 @@ class ConcreteAgentAdapter(BaseAgentAdapter):
         # Dummy implementation for MCP tools
         return []
 
+    async def aexecute_task(
+        self,
+        task: Any,
+        context: str | None = None,
+        tools: list[Any] | None = None,
+    ) -> str:
+        # Dummy async implementation
+        return "Task executed"
+
 
 def test_base_agent_adapter_initialization():
     """Test initialization of the concrete agent adapter."""

lib/crewai/tests/agents/agent_builder/test_base_agent.py

@@ -25,6 +25,14 @@ class MockAgent(BaseAgent):
     def get_mcp_tools(self, mcps: list[str]) -> list[BaseTool]:
         return []
 
+    async def aexecute_task(
+        self,
+        task: Any,
+        context: str | None = None,
+        tools: list[BaseTool] | None = None,
+    ) -> str:
+        return ""
+
     def get_output_converter(
         self, llm: Any, text: str, model: type[BaseModel] | None, instructions: str
     ): ...

lib/crewai/tests/agents/test_agent.py

@@ -147,7 +147,7 @@ def test_custom_llm():
     assert agent.llm.model == "gpt-4"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_execution():
     agent = Agent(
         role="test role",
@@ -166,7 +166,7 @@ def test_agent_execution():
     assert output == "1 + 1 is 2"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_execution_with_tools():
     @tool
     def multiplier(first_number: int, second_number: int) -> float:
@@ -211,7 +211,7 @@ def test_agent_execution_with_tools():
     assert received_events[0].tool_args == {"first_number": 3, "second_number": 4}
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_logging_tool_usage():
     @tool
     def multiplier(first_number: int, second_number: int) -> float:
@@ -245,7 +245,7 @@ def test_logging_tool_usage():
     assert agent.tools_handler.last_used_tool.arguments == tool_usage.arguments
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_cache_hitting():
     @tool
     def multiplier(first_number: int, second_number: int) -> float:
@@ -325,7 +325,7 @@ def test_cache_hitting():
     assert received_events[0].output == "12"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_disabling_cache_for_agent():
     @tool
     def multiplier(first_number: int, second_number: int) -> float:
@@ -389,7 +389,7 @@ def test_disabling_cache_for_agent():
         read.assert_not_called()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_execution_with_specific_tools():
     @tool
     def multiplier(first_number: int, second_number: int) -> float:
@@ -412,7 +412,7 @@ def test_agent_execution_with_specific_tools():
     assert output == "The result of the multiplication is 12."
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_powered_by_new_o_model_family_that_allows_skipping_tool():
     @tool
     def multiplier(first_number: int, second_number: int) -> float:
@@ -438,7 +438,7 @@ def test_agent_powered_by_new_o_model_family_that_allows_skipping_tool():
     assert output == "12"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_powered_by_new_o_model_family_that_uses_tool():
     @tool
     def comapny_customer_data() -> str:
@@ -464,7 +464,7 @@ def test_agent_powered_by_new_o_model_family_that_uses_tool():
     assert output == "42"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_custom_max_iterations():
     @tool
     def get_final_answer() -> float:
@@ -509,7 +509,7 @@ def test_agent_custom_max_iterations():
     assert call_count == 2
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 @pytest.mark.timeout(30)
 def test_agent_max_iterations_stops_loop():
     """Test that agent execution terminates when max_iter is reached."""
@@ -546,7 +546,7 @@ def test_agent_max_iterations_stops_loop():
     )
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_repeated_tool_usage(capsys):
     """Test that agents handle repeated tool usage appropriately.
 
@@ -595,7 +595,7 @@ def test_agent_repeated_tool_usage(capsys):
     )
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_repeated_tool_usage_check_even_with_disabled_cache(capsys):
     @tool
     def get_final_answer(anything: str) -> float:
@@ -638,7 +638,7 @@ def test_agent_repeated_tool_usage_check_even_with_disabled_cache(capsys):
     )
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_moved_on_after_max_iterations():
     @tool
     def get_final_answer() -> float:
@@ -665,7 +665,7 @@ def test_agent_moved_on_after_max_iterations():
     assert output == "42"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_respect_the_max_rpm_set(capsys):
     @tool
     def get_final_answer() -> float:
@@ -699,7 +699,7 @@ def test_agent_respect_the_max_rpm_set(capsys):
         moveon.assert_called()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_respect_the_max_rpm_set_over_crew_rpm(capsys):
     from unittest.mock import patch
 
@@ -737,7 +737,7 @@ def test_agent_respect_the_max_rpm_set_over_crew_rpm(capsys):
         moveon.assert_not_called()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_without_max_rpm_respects_crew_rpm(capsys):
     from unittest.mock import patch
 
@@ -797,7 +797,7 @@ def test_agent_without_max_rpm_respects_crew_rpm(capsys):
         moveon.assert_called_once()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_error_on_parsing_tool(capsys):
     from unittest.mock import patch
 
@@ -840,7 +840,7 @@ def test_agent_error_on_parsing_tool(capsys):
     assert "Error on parsing tool." in captured.out
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_remembers_output_format_after_using_tools_too_many_times():
     from unittest.mock import patch
 
@@ -875,7 +875,7 @@ def test_agent_remembers_output_format_after_using_tools_too_many_times():
         remember_format.assert_called()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_use_specific_tasks_output_as_context(capsys):
     agent1 = Agent(role="test role", goal="test goal", backstory="test backstory")
     agent2 = Agent(role="test role2", goal="test goal2", backstory="test backstory2")
@@ -902,7 +902,7 @@ def test_agent_use_specific_tasks_output_as_context(capsys):
     assert "hi" in result.raw.lower() or "hello" in result.raw.lower()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_step_callback():
     class StepCallback:
         def callback(self, step):
@@ -936,7 +936,7 @@ def test_agent_step_callback():
         callback.assert_called()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_function_calling_llm():
     from crewai.llm import LLM
     llm = LLM(model="gpt-4o", is_litellm=True)
@@ -983,7 +983,7 @@ def test_agent_function_calling_llm():
         mock_original_tool_calling.assert_called()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_tool_result_as_answer_is_the_final_answer_for_the_agent():
     from crewai.tools import BaseTool
 
@@ -1013,7 +1013,7 @@ def test_tool_result_as_answer_is_the_final_answer_for_the_agent():
     assert result.raw == "Howdy!"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_tool_usage_information_is_appended_to_agent():
     from crewai.tools import BaseTool
 
@@ -1068,7 +1068,7 @@ def test_agent_definition_based_on_dict():
 
 
 # test for human input
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_human_input():
     # Agent configuration
     config = {
@@ -1216,7 +1216,7 @@ Thought:<|eot_id|>
         assert mock_format_prompt.return_value == expected_prompt
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_task_allow_crewai_trigger_context():
     from crewai import Crew
 
@@ -1237,7 +1237,7 @@ def test_task_allow_crewai_trigger_context():
     assert "Trigger Payload: Important context data" in prompt
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_task_without_allow_crewai_trigger_context():
     from crewai import Crew
 
@@ -1260,7 +1260,7 @@ def test_task_without_allow_crewai_trigger_context():
     assert "Important context data" not in prompt
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_task_allow_crewai_trigger_context_no_payload():
     from crewai import Crew
 
@@ -1282,7 +1282,7 @@ def test_task_allow_crewai_trigger_context_no_payload():
     assert "Trigger Payload:" not in prompt
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_do_not_allow_crewai_trigger_context_for_first_task_hierarchical():
     from crewai import Crew
 
@@ -1311,7 +1311,7 @@ def test_do_not_allow_crewai_trigger_context_for_first_task_hierarchical():
     assert "Trigger Payload: Initial context data" not in first_prompt
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_first_task_auto_inject_trigger():
     from crewai import Crew
 
@@ -1344,7 +1344,7 @@ def test_first_task_auto_inject_trigger():
     assert "Trigger Payload:" not in second_prompt
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_ensure_first_task_allow_crewai_trigger_context_is_false_does_not_inject():
     from crewai import Crew
 
@@ -1549,7 +1549,7 @@ def test_agent_with_additional_kwargs():
     assert agent.llm.frequency_penalty == 0.1
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_llm_call():
     llm = LLM(model="gpt-3.5-turbo")
     messages = [{"role": "user", "content": "Say 'Hello, World!'"}]
@@ -1558,7 +1558,7 @@ def test_llm_call():
     assert "Hello, World!" in response
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_llm_call_with_error():
     llm = LLM(model="non-existent-model")
     messages = [{"role": "user", "content": "This should fail"}]
@@ -1567,7 +1567,7 @@ def test_llm_call_with_error():
         llm.call(messages)
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_handle_context_length_exceeds_limit():
     # Import necessary modules
     from crewai.utilities.agent_utils import handle_context_length
@@ -1620,7 +1620,7 @@ def test_handle_context_length_exceeds_limit():
         mock_summarize.assert_called_once()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_handle_context_length_exceeds_limit_cli_no():
     agent = Agent(
         role="test role",
@@ -1695,7 +1695,7 @@ def test_agent_with_all_llm_attributes():
     assert agent.llm.api_key == "sk-your-api-key-here"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_llm_call_with_all_attributes():
     llm = LLM(
         model="gpt-3.5-turbo",
@@ -1712,7 +1712,7 @@ def test_llm_call_with_all_attributes():
     assert "STOP" not in response
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_ollama_llama3():
     agent = Agent(
         role="test role",
@@ -1733,7 +1733,7 @@ def test_agent_with_ollama_llama3():
     assert "Llama3" in response or "AI" in response or "language model" in response
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_llm_call_with_ollama_llama3():
     llm = LLM(
         model="ollama/llama3.2:3b",
@@ -1752,7 +1752,7 @@ def test_llm_call_with_ollama_llama3():
     assert "Llama3" in response or "AI" in response or "language model" in response
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_execute_task_basic():
     agent = Agent(
         role="test role",
@@ -1771,7 +1771,7 @@ def test_agent_execute_task_basic():
     assert "4" in result
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_execute_task_with_context():
     agent = Agent(
         role="test role",
@@ -1793,7 +1793,7 @@ def test_agent_execute_task_with_context():
     assert "fox" in result.lower() and "dog" in result.lower()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_execute_task_with_tool():
     @tool
     def dummy_tool(query: str) -> str:
@@ -1818,7 +1818,7 @@ def test_agent_execute_task_with_tool():
     assert "Dummy result for: test query" in result
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_execute_task_with_custom_llm():
     agent = Agent(
         role="test role",
@@ -1839,7 +1839,7 @@ def test_agent_execute_task_with_custom_llm():
     )
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_execute_task_with_ollama():
     agent = Agent(
         role="test role",
@@ -1859,7 +1859,7 @@ def test_agent_execute_task_with_ollama():
     assert "AI" in result or "artificial intelligence" in result.lower()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_knowledge_sources():
     content = "Brandon's favorite color is red and he likes Mexican food."
     string_source = StringKnowledgeSource(content=content)
@@ -1891,7 +1891,7 @@ def test_agent_with_knowledge_sources():
             assert "red" in result.raw.lower()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_knowledge_sources_with_query_limit_and_score_threshold():
     content = "Brandon's favorite color is red and he likes Mexican food."
     string_source = StringKnowledgeSource(content=content)
@@ -1939,7 +1939,7 @@ def test_agent_with_knowledge_sources_with_query_limit_and_score_threshold():
             )
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_knowledge_sources_with_query_limit_and_score_threshold_default():
     content = "Brandon's favorite color is red and he likes Mexican food."
     string_source = StringKnowledgeSource(content=content)
@@ -1988,7 +1988,7 @@ def test_agent_with_knowledge_sources_with_query_limit_and_score_threshold_defau
             )
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_knowledge_sources_extensive_role():
     content = "Brandon's favorite color is red and he likes Mexican food."
     string_source = StringKnowledgeSource(content=content)
@@ -2024,7 +2024,7 @@ def test_agent_with_knowledge_sources_extensive_role():
         assert "red" in result.raw.lower()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_knowledge_sources_works_with_copy():
     content = "Brandon's favorite color is red and he likes Mexican food."
     string_source = StringKnowledgeSource(content=content)
@@ -2063,7 +2063,7 @@ def test_agent_with_knowledge_sources_works_with_copy():
             assert isinstance(agent_copy.llm, BaseLLM)
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_knowledge_sources_generate_search_query():
     content = "Brandon's favorite color is red and he likes Mexican food."
     string_source = StringKnowledgeSource(content=content)
@@ -2116,7 +2116,7 @@ def test_agent_with_knowledge_sources_generate_search_query():
         assert "red" in result.raw.lower()
 
 
-@pytest.mark.vcr(record_mode="none", filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_knowledge_with_no_crewai_knowledge():
     mock_knowledge = MagicMock(spec=Knowledge)
 
@@ -2143,7 +2143,7 @@ def test_agent_with_knowledge_with_no_crewai_knowledge():
     mock_knowledge.query.assert_called_once()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_with_only_crewai_knowledge():
     mock_knowledge = MagicMock(spec=Knowledge)
 
@@ -2168,7 +2168,7 @@ def test_agent_with_only_crewai_knowledge():
     mock_knowledge.query.assert_called_once()
 
 
-@pytest.mark.vcr(record_mode="none", filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_knowledege_with_crewai_knowledge():
     crew_knowledge = MagicMock(spec=Knowledge)
     agent_knowledge = MagicMock(spec=Knowledge)
@@ -2197,7 +2197,7 @@ def test_agent_knowledege_with_crewai_knowledge():
     crew_knowledge.query.assert_called_once()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_litellm_auth_error_handling():
     """Test that LiteLLM authentication errors are handled correctly and not retried."""
     from litellm import AuthenticationError as LiteLLMAuthenticationError
@@ -2326,7 +2326,7 @@ def test_litellm_anthropic_error_handling():
     mock_llm_call.assert_called_once()
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_get_knowledge_search_query():
     """Test that _get_knowledge_search_query calls the LLM with the correct prompts."""
     from crewai.utilities.i18n import I18N

lib/crewai/tests/agents/test_async_agent_executor.py

@@ -0,0 +1,345 @@
+"""Tests for async agent executor functionality."""
+
+import asyncio
+from typing import Any
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+
+from crewai.agents.crew_agent_executor import CrewAgentExecutor
+from crewai.agents.parser import AgentAction, AgentFinish
+from crewai.tools.tool_types import ToolResult
+
+
+@pytest.fixture
+def mock_llm() -> MagicMock:
+    """Create a mock LLM for testing."""
+    llm = MagicMock()
+    llm.supports_stop_words.return_value = True
+    llm.stop = []
+    return llm
+
+
+@pytest.fixture
+def mock_agent() -> MagicMock:
+    """Create a mock agent for testing."""
+    agent = MagicMock()
+    agent.role = "Test Agent"
+    agent.key = "test_agent_key"
+    agent.verbose = False
+    agent.id = "test_agent_id"
+    return agent
+
+
+@pytest.fixture
+def mock_task() -> MagicMock:
+    """Create a mock task for testing."""
+    task = MagicMock()
+    task.description = "Test task description"
+    return task
+
+
+@pytest.fixture
+def mock_crew() -> MagicMock:
+    """Create a mock crew for testing."""
+    crew = MagicMock()
+    crew.verbose = False
+    crew._train = False
+    return crew
+
+
+@pytest.fixture
+def mock_tools_handler() -> MagicMock:
+    """Create a mock tools handler."""
+    return MagicMock()
+
+
+@pytest.fixture
+def executor(
+    mock_llm: MagicMock,
+    mock_agent: MagicMock,
+    mock_task: MagicMock,
+    mock_crew: MagicMock,
+    mock_tools_handler: MagicMock,
+) -> CrewAgentExecutor:
+    """Create a CrewAgentExecutor instance for testing."""
+    return CrewAgentExecutor(
+        llm=mock_llm,
+        task=mock_task,
+        crew=mock_crew,
+        agent=mock_agent,
+        prompt={"prompt": "Test prompt {input} {tool_names} {tools}"},
+        max_iter=5,
+        tools=[],
+        tools_names="",
+        stop_words=["Observation:"],
+        tools_description="",
+        tools_handler=mock_tools_handler,
+    )
+
+
+class TestAsyncAgentExecutor:
+    """Tests for async agent executor methods."""
+
+    @pytest.mark.asyncio
+    async def test_ainvoke_returns_output(self, executor: CrewAgentExecutor) -> None:
+        """Test that ainvoke returns the expected output."""
+        expected_output = "Final answer from agent"
+
+        with patch.object(
+            executor,
+            "_ainvoke_loop",
+            new_callable=AsyncMock,
+            return_value=AgentFinish(
+                thought="Done", output=expected_output, text="Final Answer: Done"
+            ),
+        ):
+            with patch.object(executor, "_show_start_logs"):
+                with patch.object(executor, "_create_short_term_memory"):
+                    with patch.object(executor, "_create_long_term_memory"):
+                        with patch.object(executor, "_create_external_memory"):
+                            result = await executor.ainvoke(
+                                {
+                                    "input": "test input",
+                                    "tool_names": "",
+                                    "tools": "",
+                                }
+                            )
+
+        assert result == {"output": expected_output}
+
+    @pytest.mark.asyncio
+    async def test_ainvoke_loop_calls_aget_llm_response(
+        self, executor: CrewAgentExecutor
+    ) -> None:
+        """Test that _ainvoke_loop calls aget_llm_response."""
+        with patch(
+            "crewai.agents.crew_agent_executor.aget_llm_response",
+            new_callable=AsyncMock,
+            return_value="Thought: I know the answer\nFinal Answer: Test result",
+        ) as mock_aget_llm:
+            with patch.object(executor, "_show_logs"):
+                result = await executor._ainvoke_loop()
+
+        mock_aget_llm.assert_called_once()
+        assert isinstance(result, AgentFinish)
+
+    @pytest.mark.asyncio
+    async def test_ainvoke_loop_handles_tool_execution(
+        self,
+        executor: CrewAgentExecutor,
+    ) -> None:
+        """Test that _ainvoke_loop handles tool execution asynchronously."""
+        call_count = 0
+
+        async def mock_llm_response(*args: Any, **kwargs: Any) -> str:
+            nonlocal call_count
+            call_count += 1
+            if call_count == 1:
+                return (
+                    "Thought: I need to use a tool\n"
+                    "Action: test_tool\n"
+                    'Action Input: {"arg": "value"}'
+                )
+            return "Thought: I have the answer\nFinal Answer: Tool result processed"
+
+        with patch(
+            "crewai.agents.crew_agent_executor.aget_llm_response",
+            new_callable=AsyncMock,
+            side_effect=mock_llm_response,
+        ):
+            with patch(
+                "crewai.agents.crew_agent_executor.aexecute_tool_and_check_finality",
+                new_callable=AsyncMock,
+                return_value=ToolResult(result="Tool executed", result_as_answer=False),
+            ) as mock_tool_exec:
+                with patch.object(executor, "_show_logs"):
+                    with patch.object(executor, "_handle_agent_action") as mock_handle:
+                        mock_handle.return_value = AgentAction(
+                            text="Tool result",
+                            tool="test_tool",
+                            tool_input='{"arg": "value"}',
+                            thought="Used tool",
+                            result="Tool executed",
+                        )
+                        result = await executor._ainvoke_loop()
+
+        assert mock_tool_exec.called
+        assert isinstance(result, AgentFinish)
+
+    @pytest.mark.asyncio
+    async def test_ainvoke_loop_respects_max_iterations(
+        self, executor: CrewAgentExecutor
+    ) -> None:
+        """Test that _ainvoke_loop respects max iterations."""
+        executor.max_iter = 2
+
+        async def always_return_action(*args: Any, **kwargs: Any) -> str:
+            return (
+                "Thought: I need to think more\n"
+                "Action: some_tool\n"
+                "Action Input: {}"
+            )
+
+        with patch(
+            "crewai.agents.crew_agent_executor.aget_llm_response",
+            new_callable=AsyncMock,
+            side_effect=always_return_action,
+        ):
+            with patch(
+                "crewai.agents.crew_agent_executor.aexecute_tool_and_check_finality",
+                new_callable=AsyncMock,
+                return_value=ToolResult(result="Tool result", result_as_answer=False),
+            ):
+                with patch(
+                    "crewai.agents.crew_agent_executor.handle_max_iterations_exceeded",
+                    return_value=AgentFinish(
+                        thought="Max iterations",
+                        output="Forced answer",
+                        text="Max iterations reached",
+                    ),
+                ) as mock_max_iter:
+                    with patch.object(executor, "_show_logs"):
+                        with patch.object(executor, "_handle_agent_action") as mock_ha:
+                            mock_ha.return_value = AgentAction(
+                                text="Action",
+                                tool="some_tool",
+                                tool_input="{}",
+                                thought="Thinking",
+                            )
+                            result = await executor._ainvoke_loop()
+
+        mock_max_iter.assert_called_once()
+        assert isinstance(result, AgentFinish)
+
+    @pytest.mark.asyncio
+    async def test_ainvoke_handles_exceptions(
+        self, executor: CrewAgentExecutor
+    ) -> None:
+        """Test that ainvoke properly propagates exceptions."""
+        with patch.object(executor, "_show_start_logs"):
+            with patch.object(
+                executor,
+                "_ainvoke_loop",
+                new_callable=AsyncMock,
+                side_effect=ValueError("Test error"),
+            ):
+                with pytest.raises(ValueError, match="Test error"):
+                    await executor.ainvoke(
+                        {"input": "test", "tool_names": "", "tools": ""}
+                    )
+
+    @pytest.mark.asyncio
+    async def test_concurrent_ainvoke_calls(
+        self, mock_llm: MagicMock, mock_agent: MagicMock, mock_task: MagicMock,
+        mock_crew: MagicMock, mock_tools_handler: MagicMock
+    ) -> None:
+        """Test that multiple ainvoke calls can run concurrently."""
+
+        async def create_and_run_executor(executor_id: int) -> dict[str, Any]:
+            executor = CrewAgentExecutor(
+                llm=mock_llm,
+                task=mock_task,
+                crew=mock_crew,
+                agent=mock_agent,
+                prompt={"prompt": "Test {input} {tool_names} {tools}"},
+                max_iter=5,
+                tools=[],
+                tools_names="",
+                stop_words=["Observation:"],
+                tools_description="",
+                tools_handler=mock_tools_handler,
+            )
+
+            async def delayed_response(*args: Any, **kwargs: Any) -> str:
+                await asyncio.sleep(0.05)
+                return f"Thought: Done\nFinal Answer: Result from executor {executor_id}"
+
+            with patch(
+                "crewai.agents.crew_agent_executor.aget_llm_response",
+                new_callable=AsyncMock,
+                side_effect=delayed_response,
+            ):
+                with patch.object(executor, "_show_start_logs"):
+                    with patch.object(executor, "_show_logs"):
+                        with patch.object(executor, "_create_short_term_memory"):
+                            with patch.object(executor, "_create_long_term_memory"):
+                                with patch.object(executor, "_create_external_memory"):
+                                    return await executor.ainvoke(
+                                        {
+                                            "input": f"test {executor_id}",
+                                            "tool_names": "",
+                                            "tools": "",
+                                        }
+                                    )
+
+        import time
+
+        start = time.time()
+        results = await asyncio.gather(
+            create_and_run_executor(1),
+            create_and_run_executor(2),
+            create_and_run_executor(3),
+        )
+        elapsed = time.time() - start
+
+        assert len(results) == 3
+        assert all("output" in r for r in results)
+        assert elapsed < 0.15, f"Expected concurrent execution, took {elapsed}s"
+
+
+class TestAsyncLLMResponseHelper:
+    """Tests for aget_llm_response helper function."""
+
+    @pytest.mark.asyncio
+    async def test_aget_llm_response_calls_acall(self) -> None:
+        """Test that aget_llm_response calls llm.acall."""
+        from crewai.utilities.agent_utils import aget_llm_response
+        from crewai.utilities.printer import Printer
+
+        mock_llm = MagicMock()
+        mock_llm.acall = AsyncMock(return_value="LLM response")
+
+        result = await aget_llm_response(
+            llm=mock_llm,
+            messages=[{"role": "user", "content": "test"}],
+            callbacks=[],
+            printer=Printer(),
+        )
+
+        mock_llm.acall.assert_called_once()
+        assert result == "LLM response"
+
+    @pytest.mark.asyncio
+    async def test_aget_llm_response_raises_on_empty_response(self) -> None:
+        """Test that aget_llm_response raises ValueError on empty response."""
+        from crewai.utilities.agent_utils import aget_llm_response
+        from crewai.utilities.printer import Printer
+
+        mock_llm = MagicMock()
+        mock_llm.acall = AsyncMock(return_value="")
+
+        with pytest.raises(ValueError, match="Invalid response from LLM call"):
+            await aget_llm_response(
+                llm=mock_llm,
+                messages=[{"role": "user", "content": "test"}],
+                callbacks=[],
+                printer=Printer(),
+            )
+
+    @pytest.mark.asyncio
+    async def test_aget_llm_response_propagates_exceptions(self) -> None:
+        """Test that aget_llm_response propagates LLM exceptions."""
+        from crewai.utilities.agent_utils import aget_llm_response
+        from crewai.utilities.printer import Printer
+
+        mock_llm = MagicMock()
+        mock_llm.acall = AsyncMock(side_effect=RuntimeError("LLM error"))
+
+        with pytest.raises(RuntimeError, match="LLM error"):
+            await aget_llm_response(
+                llm=mock_llm,
+                messages=[{"role": "user", "content": "test"}],
+                callbacks=[],
+                printer=Printer(),
+            )

lib/crewai/tests/agents/test_lite_agent.py

@@ -70,7 +70,7 @@ class ResearchResult(BaseModel):
     sources: list[str] = Field(description="List of sources used")
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 @pytest.mark.parametrize("verbose", [True, False])
 def test_lite_agent_created_with_correct_parameters(monkeypatch, verbose):
     """Test that LiteAgent is created with the correct parameters when Agent.kickoff() is called."""
@@ -130,7 +130,7 @@ def test_lite_agent_created_with_correct_parameters(monkeypatch, verbose):
     assert created_lite_agent["response_format"] == TestResponse
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_lite_agent_with_tools():
     """Test that Agent can use tools."""
     # Create a LiteAgent with tools
@@ -174,7 +174,7 @@ def test_lite_agent_with_tools():
     assert event.tool_name == "search_web"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_lite_agent_structured_output():
     """Test that Agent can return a simple structured output."""
 
@@ -217,7 +217,7 @@ def test_lite_agent_structured_output():
     return result
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_lite_agent_returns_usage_metrics():
     """Test that LiteAgent returns usage metrics."""
     llm = LLM(model="gpt-4o-mini")
@@ -238,7 +238,7 @@ def test_lite_agent_returns_usage_metrics():
     assert result.usage_metrics["total_tokens"] > 0
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_lite_agent_output_includes_messages():
     """Test that LiteAgentOutput includes messages from agent execution."""
     llm = LLM(model="gpt-4o-mini")
@@ -259,7 +259,7 @@ def test_lite_agent_output_includes_messages():
     assert len(result.messages) > 0
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 @pytest.mark.asyncio
 async def test_lite_agent_returns_usage_metrics_async():
     """Test that LiteAgent returns usage metrics when run asynchronously."""
@@ -354,9 +354,9 @@ def test_sets_parent_flow_when_inside_flow():
     assert captured_agent.parent_flow is flow
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_guardrail_is_called_using_string():
-    guardrail_events = defaultdict(list)
+    guardrail_events: dict[str, list] = defaultdict(list)
     from crewai.events.event_types import (
         LLMGuardrailCompletedEvent,
         LLMGuardrailStartedEvent,
@@ -369,35 +369,33 @@ def test_guardrail_is_called_using_string():
         guardrail="""Only include Brazilian players, both women and men""",
     )
 
-    all_events_received = threading.Event()
+    condition = threading.Condition()
 
     @crewai_event_bus.on(LLMGuardrailStartedEvent)
     def capture_guardrail_started(source, event):
         assert isinstance(source, LiteAgent)
         assert source.original_agent == agent
-        guardrail_events["started"].append(event)
-        if (
-            len(guardrail_events["started"]) == 2
-            and len(guardrail_events["completed"]) == 2
-        ):
-            all_events_received.set()
+        with condition:
+            guardrail_events["started"].append(event)
+            condition.notify()
 
     @crewai_event_bus.on(LLMGuardrailCompletedEvent)
     def capture_guardrail_completed(source, event):
         assert isinstance(source, LiteAgent)
         assert source.original_agent == agent
-        guardrail_events["completed"].append(event)
-        if (
-            len(guardrail_events["started"]) == 2
-            and len(guardrail_events["completed"]) == 2
-        ):
-            all_events_received.set()
+        with condition:
+            guardrail_events["completed"].append(event)
+            condition.notify()
 
     result = agent.kickoff(messages="Top 10 best players in the world?")
 
-    assert all_events_received.wait(timeout=10), (
-        "Timeout waiting for all guardrail events"
-    )
+    with condition:
+        success = condition.wait_for(
+            lambda: len(guardrail_events["started"]) >= 2
+            and len(guardrail_events["completed"]) >= 2,
+            timeout=10,
+        )
+    assert success, "Timeout waiting for all guardrail events"
     assert len(guardrail_events["started"]) == 2
     assert len(guardrail_events["completed"]) == 2
     assert not guardrail_events["completed"][0].success
@@ -408,33 +406,27 @@ def test_guardrail_is_called_using_string():
     )
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_guardrail_is_called_using_callable():
-    guardrail_events = defaultdict(list)
+    guardrail_events: dict[str, list] = defaultdict(list)
     from crewai.events.event_types import (
         LLMGuardrailCompletedEvent,
         LLMGuardrailStartedEvent,
     )
 
-    all_events_received = threading.Event()
+    condition = threading.Condition()
 
     @crewai_event_bus.on(LLMGuardrailStartedEvent)
     def capture_guardrail_started(source, event):
-        guardrail_events["started"].append(event)
-        if (
-            len(guardrail_events["started"]) == 1
-            and len(guardrail_events["completed"]) == 1
-        ):
-            all_events_received.set()
+        with condition:
+            guardrail_events["started"].append(event)
+            condition.notify()
 
     @crewai_event_bus.on(LLMGuardrailCompletedEvent)
     def capture_guardrail_completed(source, event):
-        guardrail_events["completed"].append(event)
-        if (
-            len(guardrail_events["started"]) == 1
-            and len(guardrail_events["completed"]) == 1
-        ):
-            all_events_received.set()
+        with condition:
+            guardrail_events["completed"].append(event)
+            condition.notify()
 
     agent = Agent(
         role="Sports Analyst",
@@ -445,42 +437,40 @@ def test_guardrail_is_called_using_callable():
 
     result = agent.kickoff(messages="Top 1 best players in the world?")
 
-    assert all_events_received.wait(timeout=10), (
-        "Timeout waiting for all guardrail events"
-    )
+    with condition:
+        success = condition.wait_for(
+            lambda: len(guardrail_events["started"]) >= 1
+            and len(guardrail_events["completed"]) >= 1,
+            timeout=10,
+        )
+    assert success, "Timeout waiting for all guardrail events"
     assert len(guardrail_events["started"]) == 1
     assert len(guardrail_events["completed"]) == 1
     assert guardrail_events["completed"][0].success
     assert "Pelé - Santos, 1958" in result.raw
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_guardrail_reached_attempt_limit():
-    guardrail_events = defaultdict(list)
+    guardrail_events: dict[str, list] = defaultdict(list)
     from crewai.events.event_types import (
         LLMGuardrailCompletedEvent,
         LLMGuardrailStartedEvent,
     )
 
-    all_events_received = threading.Event()
+    condition = threading.Condition()
 
     @crewai_event_bus.on(LLMGuardrailStartedEvent)
     def capture_guardrail_started(source, event):
-        guardrail_events["started"].append(event)
-        if (
-            len(guardrail_events["started"]) == 3
-            and len(guardrail_events["completed"]) == 3
-        ):
-            all_events_received.set()
+        with condition:
+            guardrail_events["started"].append(event)
+            condition.notify()
 
     @crewai_event_bus.on(LLMGuardrailCompletedEvent)
     def capture_guardrail_completed(source, event):
-        guardrail_events["completed"].append(event)
-        if (
-            len(guardrail_events["started"]) == 3
-            and len(guardrail_events["completed"]) == 3
-        ):
-            all_events_received.set()
+        with condition:
+            guardrail_events["completed"].append(event)
+            condition.notify()
 
     agent = Agent(
         role="Sports Analyst",
@@ -498,9 +488,13 @@ def test_guardrail_reached_attempt_limit():
     ):
         agent.kickoff(messages="Top 10 best players in the world?")
 
-    assert all_events_received.wait(timeout=10), (
-        "Timeout waiting for all guardrail events"
-    )
+    with condition:
+        success = condition.wait_for(
+            lambda: len(guardrail_events["started"]) >= 3
+            and len(guardrail_events["completed"]) >= 3,
+            timeout=10,
+        )
+    assert success, "Timeout waiting for all guardrail events"
     assert len(guardrail_events["started"]) == 3  # 2 retries + 1 initial call
     assert len(guardrail_events["completed"]) == 3  # 2 retries + 1 initial call
     assert not guardrail_events["completed"][0].success
@@ -508,7 +502,7 @@ def test_guardrail_reached_attempt_limit():
     assert not guardrail_events["completed"][2].success
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_output_when_guardrail_returns_base_model():
     class Player(BaseModel):
         name: str
@@ -599,7 +593,7 @@ def test_lite_agent_with_custom_llm_and_guardrails():
     assert result2.raw == "Modified by guardrail"
 
 
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_lite_agent_with_invalid_llm():
     """Test that LiteAgent raises proper error when create_llm returns None."""
     with patch("crewai.lite_agent.create_llm", return_value=None):
@@ -615,7 +609,7 @@ def test_lite_agent_with_invalid_llm():
 
 @patch.dict("os.environ", {"CREWAI_PLATFORM_INTEGRATION_TOKEN": "test_token"})
 @patch("crewai_tools.tools.crewai_platform_tools.crewai_platform_tool_builder.requests.get")
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_kickoff_with_platform_tools(mock_get):
     """Test that Agent.kickoff() properly integrates platform tools with LiteAgent"""
     mock_response = Mock()
@@ -657,7 +651,7 @@ def test_agent_kickoff_with_platform_tools(mock_get):
 
 @patch.dict("os.environ", {"EXA_API_KEY": "test_exa_key"})
 @patch("crewai.agent.Agent._get_external_mcp_tools")
-@pytest.mark.vcr(filter_headers=["authorization"])
+@pytest.mark.vcr()
 def test_agent_kickoff_with_mcp_tools(mock_get_mcp_tools):
     """Test that Agent.kickoff() properly integrates MCP tools with LiteAgent"""
     # Setup mock MCP tools - create a proper BaseTool instance

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