Critical gaps across all dimensions. Tool definitions exist only in mcp.json with minimal metadata. No input schemas visible, only tool names and brief descriptions. No parameter documentation, type definitions, or output schemas. Descriptions are generic (10-50 chars) and lack actionable context. No error handling guidance. Security concerns: patch_content and append_content are write operations with no permission gates, validation rules, or audit trail integration visible in the MCP server code itself (only in Claude hooks, which are not part of the MCP server). Tool composition is reasonable (5 focused tools), but implementation quality is severely limited by lack of schema and parameter documentation.

• Add full JSON Schema input definitions for all tools. Include type, description, enum constraints, and min/max for each parameter. Example: search should declare query (string, required), scope (enum: 'all'|'filename'|'content'), limit (integer, 1-100, default 20).
• Expand tool descriptions to 100-200 chars. For search: 'Search vault files by content or filename. Returns up to 20 matching files with paths and preview snippets. Use for discovery before get_file_contents. Supports regex patterns in query.'
• Document output schemas for all tools. Example: list_files_in_vault returns {files: [{path: string, size: number, modified: ISO8601}], total: number}.
• Add permission checks and audit logging to patch_content and append_content. Require explicit confirmation for destructive changes. Return clear error messages: 'Permission denied: user lacks write:vault scope' or 'File locked by another session'.
• Add parameter descriptions and constraints. Example: patch_content should document file_path (required, string, max 500 chars), search_pattern (required, string, regex), replacement (required, string), confirm (optional, boolean, default false).