{"attribution":"MCP Queen — the evidence layer for MCP (https://mcpqueen.com)","license":"CC BY 4.0 — free to use with attribution and a link to mcpqueen.com","methodology":"https://mcpqueen.com/registry#methodology","docs":"https://mcpqueen.com/api","generated_at":"2026-07-17T06:19:54.962Z","server":{"name":"io.github.timescale/pg-aiguide","title":null,"description":"Comprehensive PostgreSQL documentation and best practices, including ecosystem tools","version":"0.5.1","remote_url":"https://mcp.tigerdata.com/docs","repo_url":"https://github.com/timescale/pg-aiguide"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":464,"tool_count":2,"probed_at":"2026-07-14T22:00:36.466Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 464ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo pg-aiguide@1.0.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 2 tools e.g. \"search_docs\"; 2/2 described, 2/2 fully-typed schemas, median description 8828 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 464ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 0.5.1; namespace io.github.timescale matches endpoint/repo"}],"protocol_access":"open"},"field_semantics":{"auth_state":"Deprecated name retained for compatibility. It means protocol handshake/discovery access only, not tool-level data entitlement.","protocol_access":"Preferred name for auth_state."},"audit_state":"unaudited","observations":[],"response_benchmarks":[],"reviewed_field_reports":[],"interpretation":"Dimensions are independent; missing evidence is not a pass; field reports are qualitative, moderated and never votes."}