{"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":"2026-09-07T06:10:42.323Z","server":{"name":"io.github.sadri-dridi/isbn-shape","title":"ISBN digit shape","description":"ISBN digit shape","version":"1.0.0","remote_url":"https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp","repo_url":"https://github.com/sadri-dridi/named-mcp-utilities"},"operational_grade":{"grade":"A","score":97,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":8,"tool_count":11,"probed_at":"2026-09-07T00:00:31.705Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 8ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-03-26, serverInfo ISBN digit shape@3.0.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 11 tools e.g. \"isbn-shape\"; 11/11 described, 11/11 fully-typed schemas, median description 55 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 8ms"},{"criterion":"provenance","points":12,"max":15,"evidence":"description missing/thin; repository linked; version 1.0.0; namespace io.github.sadri-dridi 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."}