diff --git a/src/crewai/agent.py b/src/crewai/agent.py
index d75f0d97a..b7a42da5d 100644
--- a/src/crewai/agent.py
+++ b/src/crewai/agent.py
@@ -219,6 +219,7 @@ class Agent(BaseAgent):
                         collection_name=self.role,
                         storage=self.knowledge_storage or None,
                     )
+                    self.knowledge.add_sources()
         except (TypeError, ValueError) as e:
             raise ValueError(f"Invalid Knowledge Configuration: {str(e)}")
 
@@ -260,6 +261,27 @@ 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:
+                if hasattr(self, "_logger"):
+                    self._logger.log(
+                        "error", f"Error during reasoning process: {str(e)}"
+                    )
+                else:
+                    print(f"Error during reasoning process: {str(e)}")
 
         self._inject_date_to_task(task)
 
@@ -669,8 +691,20 @@ class Agent(BaseAgent):
         """Inject the current date into the task description if inject_date is enabled."""
         if self.inject_date:
             from datetime import datetime
+
             try:
-                valid_format_codes = ['%Y', '%m', '%d', '%H', '%M', '%S', '%B', '%b', '%A', '%a']
+                valid_format_codes = [
+                    "%Y",
+                    "%m",
+                    "%d",
+                    "%H",
+                    "%M",
+                    "%S",
+                    "%B",
+                    "%b",
+                    "%A",
+                    "%a",
+                ]
                 is_valid = any(code in self.date_format for code in valid_format_codes)
 
                 if not is_valid:
@@ -679,12 +713,11 @@ class Agent(BaseAgent):
                 current_date: str = datetime.now().strftime(self.date_format)
                 task.description += f"\n\nCurrent Date: {current_date}"
             except Exception as e:
-                if hasattr(self, '_logger'):
+                if hasattr(self, "_logger"):
                     self._logger.log("warning", f"Failed to inject date: {str(e)}")
                 else:
                     print(f"Warning: Failed to inject date: {str(e)}")
 
-
     def _validate_docker_installation(self) -> None:
         """Check if Docker is installed and running."""
         if not shutil.which("docker"):
diff --git a/tests/agent_test.py b/tests/agent_test.py
index 800860c9f..22748ab2e 100644
--- a/tests/agent_test.py
+++ b/tests/agent_test.py
@@ -309,7 +309,9 @@ def test_cache_hitting():
     def handle_tool_end(source, event):
         received_events.append(event)
 
-    with (patch.object(CacheHandler, "read") as read,):
+    with (
+        patch.object(CacheHandler, "read") as read,
+    ):
         read.return_value = "0"
         task = Task(
             description="What is 2 times 6? Ignore correctness and just return the result of the multiplication tool, you must use the tool.",
@@ -1628,13 +1630,13 @@ def test_agent_execute_task_with_ollama():
 
 @pytest.mark.vcr(filter_headers=["authorization"])
 def test_agent_with_knowledge_sources():
-    # Create a knowledge source with some content
     content = "Brandon's favorite color is red and he likes Mexican food."
     string_source = StringKnowledgeSource(content=content)
     with patch("crewai.knowledge") as MockKnowledge:
         mock_knowledge_instance = MockKnowledge.return_value
         mock_knowledge_instance.sources = [string_source]
         mock_knowledge_instance.search.return_value = [{"content": content}]
+        MockKnowledge.add_sources.return_value = [string_source]
 
         agent = Agent(
             role="Information Agent",
@@ -1644,7 +1646,6 @@ def test_agent_with_knowledge_sources():
             knowledge_sources=[string_source],
         )
 
-        # Create a task that requires the agent to use the knowledge
         task = Task(
             description="What is Brandon's favorite color?",
             expected_output="Brandon's favorite color.",
@@ -1652,10 +1653,11 @@ def test_agent_with_knowledge_sources():
         )
 
         crew = Crew(agents=[agent], tasks=[task])
-        result = crew.kickoff()
-
-        # Assert that the agent provides the correct information
-        assert "red" in result.raw.lower()
+        with patch.object(Knowledge, "add_sources") as mock_add_sources:
+            result = crew.kickoff()
+            assert mock_add_sources.called, "add_sources() should have been called"
+            mock_add_sources.assert_called_once()
+            assert "red" in result.raw.lower()
 
 
 @pytest.mark.vcr(filter_headers=["authorization"])