feat: Add date_format parameter and error handling to inject_date feature

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

docs/usage_examples/inject_date_example.py

@@ -7,15 +7,29 @@ agent = Agent(
     inject_date=True,  # Enable automatic date injection
 )
 
+agent_custom_format = Agent(
+    role="financial_analyst",
+    goal="Provide financial insights with proper date context",
+    backstory="You are a financial analyst who needs precise date formatting.",
+    inject_date=True,
+    date_format="%B %d, %Y",  # Format as "May 21, 2025"
+)
+
 task = Task(
     description="Research market trends and provide analysis",
     expected_output="A comprehensive report on current market trends",
     agent=agent,
 )
 
+task_custom = Task(
+    description="Analyze financial data and provide insights",
+    expected_output="A detailed financial analysis report",
+    agent=agent_custom_format,
+)
+
 crew = Crew(
-    agents=[agent],
-    tasks=[task],
+    agents=[agent, agent_custom_format],
+    tasks=[task, task_custom],
 )
 
 result = crew.kickoff()

src/crewai/agent.py

@@ -119,6 +119,10 @@ class Agent(BaseAgent):
         default=False,
         description="Whether to automatically inject the current date into tasks.",
     )
+    date_format: str = Field(
+        default="%Y-%m-%d",
+        description="Format string for date when inject_date is enabled.",
+    )
     code_execution_mode: Literal["safe", "unsafe"] = Field(
         default="safe",
         description="Mode for code execution: 'safe' (using Docker) or 'unsafe' (direct execution).",
@@ -254,8 +258,14 @@ class Agent(BaseAgent):
             
         if self.inject_date:
             from datetime import datetime
-            current_date = datetime.now().strftime("%Y-%m-%d")
-            task.description += f"\n\nCurrent Date: {current_date}"
+            try:
+                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'):
+                    self._logger.log("warning", f"Failed to inject date: {str(e)}")
+                else:
+                    print(f"Warning: Failed to inject date: {str(e)}")
             
         if self.tools_handler:
             self.tools_handler.last_used_tool = {}  # type: ignore # Incompatible types in assignment (expression has type "dict[Never, Never]", variable has type "ToolCalling")

tests/test_agent_inject_date.py

@@ -1,13 +1,15 @@
-import re
 from datetime import datetime
-from unittest.mock import patch, MagicMock
+from unittest.mock import patch
 
 from crewai.agent import Agent
 from crewai.task import Task
 
 
 def test_agent_inject_date():
-    """Test that the inject_date flag injects the current date into the task."""
+    """Test that the inject_date flag injects the current date into the task.
+    
+    Tests that when inject_date=True, the current date is added to the task description.
+    """
     agent = Agent(
         role="test_agent",
         goal="test_goal",
@@ -31,7 +33,10 @@ def test_agent_inject_date():
 
 
 def test_agent_without_inject_date():
-    """Test that without inject_date flag, no date is injected."""
+    """Test that without inject_date flag, no date is injected.
+    
+    Tests that when inject_date=False (default), no date is added to the task description.
+    """
     agent = Agent(
         role="test_agent",
         goal="test_goal",
@@ -53,3 +58,57 @@ def test_agent_without_inject_date():
         
         assert "Current Date:" not in called_task.description
         assert called_task.description == original_description
+
+
+def test_agent_inject_date_custom_format():
+    """Test that the inject_date flag with custom date_format works correctly.
+    
+    Tests that when inject_date=True with a custom date_format, the date is formatted correctly.
+    """
+    agent = Agent(
+        role="test_agent",
+        goal="test_goal",
+        backstory="test_backstory",
+        inject_date=True,
+        date_format="%d/%m/%Y",
+    )
+    
+    task = Task(
+        description="Test task",
+        expected_output="Test output",
+        agent=agent,
+    )
+    
+    with patch.object(Agent, 'execute_task', return_value="Task executed") as mock_execute:
+        agent.execute_task(task)
+        
+        called_task = mock_execute.call_args[0][0]
+        
+        current_date = datetime.now().strftime("%d/%m/%Y")
+        assert f"Current Date: {current_date}" in called_task.description
+
+
+def test_agent_inject_date_invalid_format():
+    """Test error handling with invalid date format.
+    
+    Tests that when an invalid date_format is provided, the task description remains unchanged.
+    """
+    agent = Agent(
+        role="test_agent",
+        goal="test_goal",
+        backstory="test_backstory",
+        inject_date=True,
+        date_format="invalid",
+    )
+    
+    task = Task(
+        description="Test task",
+        expected_output="Test output",
+        agent=agent,
+    )
+    
+    original_description = task.description
+    
+    agent.execute_task(task)
+    
+    assert task.description == original_description