- Set autonomous mode as the default execution mode in CLI argument parser
- Added new self_analysis tool that indexes source code and updates self_anatomy.md knowledge file
- Updated CHANGELOG.md with version 1.55.0 release notes documenting all changes
- Bumped pyproject.toml version from 1.54.0 to 1.55.0
- Refactored format_output method to use double quotes consistently for string literals
- Removed unused display_tool_call import from autonomous mode module