fixed serial_llm_agent.py params

[ahgpt]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @ahgpt, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses parameter handling within the SerialLLMAgent's async_policy method. The changes ensure that sub-agents invoked by the serial agent receive the correct observation and context based on the current message and observation state. This improves the agent's ability to process information accurately and maintain proper contextual flow during complex interactions.

Highlights

• Method Signature Update: The async_policy method in serial_llm_agent.py has been updated to accept an optional message: Message = None parameter, allowing for more flexible context passing.
• Dynamic Observation Handling: The exec_agent call now includes logic to dynamically adjust the observation parameter. If observation.info is empty, observation.content is used as the primary observation for the sub-agent execution.
• Context Source Change: The context argument passed to exec_agent has been changed from self.context to message.context, ensuring that the sub-agent operates within the context provided by the incoming message.

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[gemini-code-assist]

Code Review

This pull request updates the async_policy method in serial_llm_agent.py, changing its signature and the way exec_agent is called. While the changes seem intended to pass more context, they introduce a critical bug. The new message parameter can be None, but its context attribute is accessed without a null check, which will cause an AttributeError. I've provided a comment with a code suggestion to fix this critical issue and also improve the code's readability.

[gemini-code-assist]

This block has a critical issue and a readability concern:

1. Critical Bug: The message parameter can be None (as per the signature on line 32), but message.context is used on line 40 without a null check. This will cause an AttributeError if message is not provided.
2. Readability: The observation variable is conditionally reassigned to a different type (Any) within the loop. This makes the code harder to follow and maintain.

I suggest refactoring this block to address both points for robustness and clarity.

                if not message:
                    raise ValueError("A 'message' object with context is required for serial agent execution.")
                question = observation.content if not observation.info else observation
                result = await exec_agent(question, agent, message.context, sub_task=True)