Two tools with minimal documentation. add_note has a basic description (67 chars) but lacks parameter description detail; read_notes has a typo-ridden description (95 chars, 'lie' instead of 'line', 'axist' instead of 'exist') and no parameters to describe. Both tools have input schemas visible in FastMCP decorators, but descriptions fall short of production standards (baseline 194 chars). No error handling guidance, no output schema documentation, no parameter constraints or validation hints. Naming is acceptable (verb_noun pattern), but overall quality is well below A/B grade standards.

• Expand add_note description to 100-150 chars: explain what 'note' means, when to use it vs read_notes, and that it appends (not replaces). Add parameter description: 'message (str): the note text to append; max 500 chars'.
• Fix read_notes description typos and expand to 120+ chars. Document return format: 'Returns all notes as a single string, one per line. Returns "no notes yet" if empty.'
• Add output schema documentation in docstrings. E.g., add_note returns {"status": "success", "message": "Note Saved"}; read_notes returns {"notes": string, "count": int}.
• Implement error handling with actionable messages. E.g., if file write fails: 'Failed to save note. Check disk space and file permissions.' If read fails: 'Could not read notes file. Try again or contact support.'
• Add parameter constraints to add_note: specify max message length, disallowed characters, or format requirements. Use enum or pattern in schema if applicable.