diff --git a/lib/crewai/tests/agents/test_native_tool_calling.py b/lib/crewai/tests/agents/test_native_tool_calling.py
index 13c5dc5e1..1314c9680 100644
--- a/lib/crewai/tests/agents/test_native_tool_calling.py
+++ b/lib/crewai/tests/agents/test_native_tool_calling.py
@@ -1142,18 +1142,21 @@ class TestNativeToolCallingJsonParseError:
 
     def _make_executor(self, tools: list[BaseTool]) -> "CrewAgentExecutor":
         """Create a minimal CrewAgentExecutor with mocked dependencies."""
+        from crewai.agents.agent_builder.base_agent import BaseAgent
         from crewai.agents.crew_agent_executor import CrewAgentExecutor
+        from crewai.crew import Crew
+        from crewai.task import Task
         from crewai.tools.base_tool import to_langchain
 
         structured_tools = to_langchain(tools)
-        mock_agent = Mock()
+        mock_agent = Mock(spec=BaseAgent)
         mock_agent.key = "test_agent"
         mock_agent.role = "tester"
         mock_agent.verbose = False
         mock_agent.fingerprint = None
         mock_agent.tools_results = []
 
-        mock_task = Mock()
+        mock_task = Mock(spec=Task)
         mock_task.name = "test"
         mock_task.description = "test"
         mock_task.id = "test-id"
@@ -1161,7 +1164,7 @@ class TestNativeToolCallingJsonParseError:
         return CrewAgentExecutor(
             agent=mock_agent,
             task=mock_task,
-            crew=Mock(),
+            crew=Mock(spec=Crew),
             tools=structured_tools,
             original_tools=tools,
         )
diff --git a/lib/crewai/tests/memory/test_memory_root_scope.py b/lib/crewai/tests/memory/test_memory_root_scope.py
index ec81fa524..c213832c2 100644
--- a/lib/crewai/tests/memory/test_memory_root_scope.py
+++ b/lib/crewai/tests/memory/test_memory_root_scope.py
@@ -523,10 +523,12 @@ class TestAgentScopeExtension:
 
     def test_agent_save_extends_crew_root_scope(self) -> None:
         """Agent._save_to_memory extends crew's root_scope with agent info."""
+        from crewai.agents.agent_builder.base_agent import BaseAgent
         from crewai.agents.agent_builder.base_agent_executor import (
             BaseAgentExecutor,
         )
         from crewai.agents.parser import AgentFinish
+        from crewai.task import Task
         from crewai.utilities.printer import Printer
 
         mock_memory = MagicMock()
@@ -534,12 +536,12 @@ class TestAgentScopeExtension:
         mock_memory.root_scope = "/crew/research-crew"
         mock_memory.extract_memories.return_value = ["Fact A"]
 
-        mock_agent = MagicMock()
+        mock_agent = MagicMock(spec=BaseAgent)
         mock_agent.memory = mock_memory
         mock_agent._logger = MagicMock()
         mock_agent.role = "Researcher"
 
-        mock_task = MagicMock()
+        mock_task = MagicMock(spec=Task)
         mock_task.description = "Research task"
         mock_task.expected_output = "Report"
 
@@ -557,10 +559,12 @@ class TestAgentScopeExtension:
 
     def test_agent_save_sanitizes_role(self) -> None:
         """Agent role with special chars is sanitized for scope path."""
+        from crewai.agents.agent_builder.base_agent import BaseAgent
         from crewai.agents.agent_builder.base_agent_executor import (
             BaseAgentExecutor,
         )
         from crewai.agents.parser import AgentFinish
+        from crewai.task import Task
         from crewai.utilities.printer import Printer
 
         mock_memory = MagicMock()
@@ -568,12 +572,12 @@ class TestAgentScopeExtension:
         mock_memory.root_scope = "/crew/test"
         mock_memory.extract_memories.return_value = ["Fact"]
 
-        mock_agent = MagicMock()
+        mock_agent = MagicMock(spec=BaseAgent)
         mock_agent.memory = mock_memory
         mock_agent._logger = MagicMock()
         mock_agent.role = "Senior Research Analyst #1"
 
-        mock_task = MagicMock()
+        mock_task = MagicMock(spec=Task)
         mock_task.description = "Task"
         mock_task.expected_output = "Output"
 
diff --git a/lib/crewai/tests/memory/test_unified_memory.py b/lib/crewai/tests/memory/test_unified_memory.py
index e6b48333a..aeed6fa72 100644
--- a/lib/crewai/tests/memory/test_unified_memory.py
+++ b/lib/crewai/tests/memory/test_unified_memory.py
@@ -315,19 +315,21 @@ def test_memory_extract_memories_empty_content_returns_empty_list(tmp_path: Path
 
 def test_executor_save_to_memory_calls_extract_then_remember_per_item() -> None:
     """_save_to_memory calls memory.extract_memories(raw) then memory.remember(m) for each."""
+    from crewai.agents.agent_builder.base_agent import BaseAgent
     from crewai.agents.agent_builder.base_agent_executor import BaseAgentExecutor
     from crewai.agents.parser import AgentFinish
+    from crewai.task import Task
 
     mock_memory = MagicMock()
     mock_memory.read_only = False
     mock_memory.extract_memories.return_value = ["Fact A.", "Fact B."]
 
-    mock_agent = MagicMock()
+    mock_agent = MagicMock(spec=BaseAgent)
     mock_agent.memory = mock_memory
     mock_agent._logger = MagicMock()
     mock_agent.role = "Researcher"
 
-    mock_task = MagicMock()
+    mock_task = MagicMock(spec=Task)
     mock_task.description = "Do research"
     mock_task.expected_output = "A report"
 
@@ -349,16 +351,20 @@ def test_executor_save_to_memory_calls_extract_then_remember_per_item() -> None:
 
 def test_executor_save_to_memory_skips_delegation_output() -> None:
     """_save_to_memory does nothing when output contains delegate action."""
+    from crewai.agents.agent_builder.base_agent import BaseAgent
     from crewai.agents.agent_builder.base_agent_executor import BaseAgentExecutor
     from crewai.agents.parser import AgentFinish
+    from crewai.task import Task
     from crewai.utilities.string_utils import sanitize_tool_name
 
     mock_memory = MagicMock()
     mock_memory.read_only = False
-    mock_agent = MagicMock()
+    mock_agent = MagicMock(spec=BaseAgent)
     mock_agent.memory = mock_memory
     mock_agent._logger = MagicMock()
-    mock_task = MagicMock(description="Task", expected_output="Out")
+    mock_task = MagicMock(spec=Task)
+    mock_task.description = "Task"
+    mock_task.expected_output = "Out"
 
     delegate_text = f"Action: {sanitize_tool_name('Delegate work to coworker')}"
     full_text = delegate_text + " rest"