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Preserve non-ASCII characters in JSON output for better multilingual support #580

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@VvvvvGH VvvvvGH commented Apr 24, 2025

Motivation and Context

Add ensure_ascii=False parameter to json.dumps() when converting results to JSON strings in _convert_to_content function. This prevents Unicode characters (like Chinese) from being escaped as \uXXXX sequences, making the output
more readable and user-friendly for multilingual content.

Comprehension Barriers for LLMs: AI models frequently struggle to properly parse and understand Unicode escape sequences. For example, when Chinese text "你好" is encoded as "\u4f60\u597d", large language models could mistakenly understand them.

How Has This Been Tested?

I have tested unicode characters and is working fine

Breaking Changes

No

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Documentation update

Checklist

  • I have read the MCP Documentation
  • My code follows the repository's style guidelines
  • New and existing tests pass locally
  • I have added appropriate error handling
  • I have added or updated documentation as needed

Additional context

VvvvvGH added 2 commits April 24, 2025 13:57
Add ensure_ascii=False parameter to json.dumps() when converting results 
to JSON strings in _convert_to_content function. This prevents Unicode 
characters (like Chinese) from being escaped as \uXXXX sequences, making 
the output more readable and user-friendly for multilingual content.
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