e56e9779ec
Gives Pyra an active memory brain: memory_index.json tracks summary + keywords per file (like an inode table), and three built-in tools let the AI look up, read, and overwrite memory mid-session. write_memory accepts summary/keywords; update_index() merges the JSON index without losing existing metadata. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>