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83b07b9d23
Fixes #4181 The issue was that tool observations were being appended to the assistant message in the conversation history, which caused the LLM to learn to hallucinate fake observations during tool calls. Changes: - Add llm_response field to AgentAction to store the original LLM response before observation is appended - Modify handle_agent_action_core to store llm_response before appending observation to text (text still contains observation for logging) - Update CrewAgentExecutor._invoke_loop and _ainvoke_loop to: - Append LLM response as assistant message - Append observation as user message (not assistant) - Apply same fix to LiteAgent._invoke_loop - Apply same fix to CrewAgentExecutorFlow.execute_tool_action - Fix add_image_tool special case in both executors to use same pattern - Add comprehensive tests for proper message attribution Co-Authored-By: João <joao@crewai.com>