{"id":"lethain-library-mcp","name":"library-mcp","af_score":43.2,"security_score":28.0,"reliability_score":17.5,"what_it_does":"Provides an MCP server (Python) to query local Markdown knowledge bases. It indexes folders of .md files with front-matter metadata (e.g., title/tags/url) and exposes MCP tools to retrieve content by tag/text/slug/date range, manage tags, and rebuild the index.","best_when":"You run it locally (or in a trusted internal environment) to query your own Markdown corpus and want an agent to fetch relevant excerpts rather than sending entire documents to a model context window.","avoid_when":"You need robust network security controls (TLS termination, strong auth, tenant isolation) or documented SLAs/error-retry semantics; also avoid exposing it to untrusted input without sandboxing and validation.","last_evaluated":"2026-03-30T13:48:46.356418+00:00","has_mcp":true,"has_api":false,"auth_methods":["MCP transport configuration (implied by MCP server usage)"],"has_free_tier":false,"known_gotchas":["No documented rate limits or pagination/streaming contract for tool outputs; agents may need to cap requests (e.g., 'next 50 posts') themselves.","No documented error codes/structures; agent error recovery and retry strategies may require probing.","Since it indexes local folders, performance may degrade if corpus is large or rebuild is frequent."],"error_quality":0.0}