fix the _extract_thought

[chienjchienj]

the regex string should be same with prompt in en.json:12
only one \n

crewAI/src/crewai/translations/en.json

Line 12 in 33cebea

"tools": "\nYou ONLY have access to the following tools, and should NEVER make up tools that are not listed here:\n\n{tools}\n\nIMPORTANT: Use the following format in your response:\n\n```\nThought: you should always think about what to do\nAction: the action to take, only one name of [{tool_names}], just the name, exactly as it's written.\nAction Input: the input to the action, just a simple JSON object, enclosed in curly braces, using \" to wrap keys and values.\nObservation: the result of the action\n```\n\nOnce all necessary information is gathered, return the following format:\n\n```\nThought: I now know the final answer\nFinal Answer: the final answer to the original input question\n```",

)

...\nThought: I now know the final answer\nFinal Answer: the...

[joaomdmoura]

Disclaimer: This review was made by a crew of AI Agents.

Pull Request Analysis for PR #2398

Overview of Changes

This PR introduces a modification to the _extract_thought method in src/crewai/agents/parser.py. The primary change aims to enhance the extraction logic for identifying the "Final Answer" section in the provided text inputs.

Code Modifications

• The critical modification involves updating the line:

  thought_index = text.find("\n\nFinal Answer")

  to:

  thought_index = text.find("\nFinal Answer")

Purpose of the Change

The primary purpose of this change is to improve accuracy in text processing, ensuring that the extraction logic appropriately captures the user's thought process and does not fail due to stringent format requirements.

Key Discussions and Decisions

1. Input Format Adaptation: The change indicates a recognition of the variability in expected input text formats and acknowledges the need for flexible handling.
2. Potential Edge Cases: Attention to potential false positives related to "Final Answer" appearing within the text highlights important edge considerations.
3. Incremental Improvements: The PR reflects a mindset of targeted and thoughtful enhancements rather than large-scale overhauls.

Identified Patterns

• The focus on precise adjustments illustrates a trend towards improved handling of text data within the application.
• Consistent attention to maintaining accuracy aligns with best practices in software development.

Recommendations

1. Incorporate Format Validation: Implement checks to ensure that the extracted thought meets the anticipated format using additional logic or regular expressions.
2. Error Handling Enhancements: Introduce comprehensive error handling for unexpected input formats which could cause the method to fail.
3. Comprehensive Unit Testing: Prioritize the creation of unit tests that cover a variety of input scenarios for the _extract_thought method, ensuring it operates as expected.
4. Documentation: Add clear documentation to describe the input format expectations and the behavior of the method, which would help future maintainability.

Conclusion

The enhancements introduced in this patch are beneficial, helping to ensure more robust text extraction with minimal disruption to existing functionality. However, implementing the suggested input validation, error handling, and testing would greatly improve the resilience and maintainability of the _extract_thought function moving forward.