Fix issue #2233: Add support for task-specific knowledge

Co-Authored-By: Joe Moura <joao@crewai.com>

src/crewai/agent.py

@@ -207,6 +207,17 @@ class Agent(BaseAgent):
             if memory.strip() != "":
                 task_prompt += self.i18n.slice("memory").format(memory=memory)
 
+        # Check if the task has knowledge first
+        if hasattr(task, 'knowledge') and task.knowledge:
+            task_knowledge_snippets = task.knowledge.query([task.prompt()])
+            if task_knowledge_snippets:
+                task_knowledge_context = extract_knowledge_context(
+                    task_knowledge_snippets
+                )
+                if task_knowledge_context:
+                    task_prompt += task_knowledge_context
+
+        # Then check agent's knowledge
         if self.knowledge:
             agent_knowledge_snippets = self.knowledge.query([task.prompt()])
             if agent_knowledge_snippets:
@@ -216,6 +227,7 @@ class Agent(BaseAgent):
                 if agent_knowledge_context:
                     task_prompt += agent_knowledge_context
 
+        # Finally check crew's knowledge
         if self.crew:
             knowledge_snippets = self.crew.query_knowledge([task.prompt()])
             if knowledge_snippets:

src/crewai/knowledge/__init__.py

@@ -0,0 +1,3 @@
+from crewai.knowledge.knowledge import Knowledge
+
+__all__ = ["Knowledge"]

src/crewai/task.py

@@ -32,6 +32,7 @@ from pydantic import (
 from pydantic_core import PydanticCustomError
 
 from crewai.agents.agent_builder.base_agent import BaseAgent
+from crewai.knowledge import Knowledge
 from crewai.tasks.guardrail_result import GuardrailResult
 from crewai.tasks.output_format import OutputFormat
 from crewai.tasks.task_output import TaskOutput
@@ -144,6 +145,10 @@ class Task(BaseModel):
     end_time: Optional[datetime.datetime] = Field(
         default=None, description="End time of the task execution"
     )
+    knowledge: Optional[Knowledge] = Field(
+        default=None,
+        description="Knowledge sources for the task. This knowledge will be used by the agent when executing the task.",
+    )
 
     @field_validator("guardrail")
     @classmethod