The server provides 7 tools with explicit schemas and descriptions, but quality is inconsistent. All tools are properly registered with JSON Schema input definitions and non-empty descriptions. However, descriptions are brief (10-40 chars), lack WHEN-to-use context, and omit output schema documentation. Parameter descriptions are minimal or missing. Error handling lacks recovery guidance. No destructive operation confirmations despite delete/clear tools. Tool names follow verb_noun convention well. Schemas are present and typed, but parameter constraints are minimal (only priority and filter use enums). No validation rules documented. Output structure is not formally specified for any tool.

• Expand each tool description to 50-150 characters. Include: WHAT it does, WHEN to call it, and WHAT it returns. Example: 'remind_me' → 'Add a reminder with optional priority (high/normal/low). Returns reminder ID. Use after identifying something to track across sessions.'
• Add formal output schema to each tool's registration. Document the response structure LLMs will receive. E.g., check_reminders returns {reminders: [{id, content, priority, created}], total: number}.
• Add 'minimum' and 'maximum' constraints to numeric params (days: 1-365). Add 'pattern' or 'format' hints for ID params. Document enum defaults in schema, not description text.
• Implement dry-run for destructive ops: add 'dry_run' boolean param to delete_reminder and clear_old_reminders. Returns what WOULD be deleted without actually deleting.
• Add actionable error messages. When move_to_notes fails (e.g., Obsidian path missing), return: 'Failed to move reminder to notes: Obsidian vault path does not exist at ~/Documents/Obsidian/Brain/Reminders. Verify the path or use a different notes backend.'
• Document what reminder IDs look like and accept both IDs and partial content matching. E.g., 'id accepts full ID (rem_1234_abcde) or first 10 chars of content for convenience.'
• Add pagination to check_reminders: accept 'limit' (1-50, default 20) and 'offset' params, return {reminders: [...], total: number, hasMore: boolean}.
• Make Obsidian path configurable via environment variable (OBSIDIAN_VAULT_PATH) with a fallback to ~/Documents/Obsidian/Brain/Reminders. Or accept 'vault_path' as optional param in move_to_notes.