This C++ STDIO-only MCP server exposes 9 filesystem and gateway tools with minimal documentation. Tool names follow verb_noun convention (fs/stat, fs/read, fs/write, etc.), which is good. However, descriptions are extremely brief (10-30 chars), parameter descriptions are minimal or absent, and no output schemas are documented. The 'resolve' tool lacks context on what it returns. No error handling guidance, no pagination support for directory listings, no idempotent hints on destructive operations. Input schemas are present but sparse, only path/offset/length parameters with basic type info, no constraints, ranges, or validation rules. The server exposes destructive operations (fs/unlink, fs/rmdir) without confirmation patterns or permission gates. Overall, this reads as a minimal proof-of-concept rather than a production-grade tool suite.

• Expand all tool descriptions to 50-200 chars. Example: 'fs/stat' → 'Retrieve file or directory metadata (mode, size, is_dir). Use before reading to check if path exists and is a file or directory. Returns ENOENT if path does not exist.'
• Document output schemas for all tools. fs/stat should return {mode: int, size: int, is_dir: bool}; fs/readdir should return {entries: [{name: string, is_dir: bool}], total: int}.
• Add parameter constraints: fs/read offset/length should specify 'offset >= 0, length > 0, offset+length <= file_size'; fs/readdir should accept 'limit: 1-1000 (default 50), offset: >= 0'.
• Implement confirmation pattern for destructive tools: fs/unlink and fs/rmdir should support a 'confirm: true' parameter or return 'input_required' asking user to confirm before deletion.
• Add error recovery guidance: 'fs/stat returns ENOENT if path does not exist. Try fs/readdir on parent directory to list available files.' Include actionable next steps in error responses.