Galactic Brain MCP has 23 tools with consistent naming (verb_noun pattern) and basic descriptions. However, critical gaps undermine quality: input schemas are not visible in provided source code (only tool names and descriptions shown), parameter type definitions cannot be verified, and descriptions are often generic (10-50 chars). No output schemas documented. Error handling is minimal, tools return success/failure text without recovery guidance. The render layer provides consistent formatting but does not compensate for missing schema rigor. This is a typical community server with good intent but incomplete production-grade definitions.

• Add explicit JSON Schema definitions for all 23 tools. Each tool registration must include inputSchema with type, properties, required array, and descriptions for every parameter. Example: { type: 'object', properties: { path: { type: 'string', description: 'Vault-relative path (e.g., notes/project/design.md)' } }, required: ['path'] }.
• Expand tool descriptions to 100-200 characters. Include WHAT the tool does, WHEN to use it vs. similar tools, and any prerequisites. Example: 'Search notes by keyword or token. Use this to find related notes before creating a new one. Returns up to 50 matches; use pagination for more.'
• Document output schemas for all tools. Specify returned fields, types, and structure. Example for list_notes: 'Returns { notes: [{ path: string, title: string, created: ISO8601, updated: ISO8601 }], total: number, nextCursor?: string }'.
• Add error recovery guidance. When a tool fails, return actionable hints. Example: 'Note not found at path "notes/missing.md". Available paths: notes/project/design.md, notes/project/spec.md. Did you mean one of these?'
• Implement pagination for list/search tools. Add limit (default 20, max 100) and cursor/offset parameters. Document in descriptions: 'Returns up to 20 results per page. Use nextCursor to fetch more.'