{"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":"2026-10-28T14:21:07.753Z","server":{"name":"com.diamonds-expert/diamond-sourcing","title":"Diamonds Expert","description":"Natural diamond sourcing: Rapaport references, expert profile and client-reviewed request drafts.","version":"1.0.3","remote_url":"https://diamonds-expert.com/wp-json/diamonds-agent/v1/mcp","repo_url":null},"operational_grade":{"grade":"A","score":91,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":1980,"tool_count":3,"probed_at":"2026-10-28T08:00:45.712Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 1980ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo diamonds-expert@1.0.3"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 3 tools e.g. \"estimate_rapaport\"; 3/3 described, 3/3 fully-typed schemas, median description 422 chars"},{"criterion":"latency","points":4,"max":10,"evidence":"initialize round-trip 1980ms"},{"criterion":"provenance","points":12,"max":15,"evidence":"description present; no repository URL; version 1.0.3; namespace com.diamonds-expert 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":"observations_published","observations":[{"dimension":"citation_quality","metric":"citation_capability_advertised","status":"unverified","value_text":null,"evidence":"Metadata/tool descriptions advertise citation or evidence capability: Diamonds Expert Natural diamond sourcing: Rapaport references, expert profile and client-reviewed request drafts | estimate_rapaport Returns Rapaport TABLE reference in USD for a natural diamond. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-28T08:00:45.712Z","methodology_version":"trust-v1"},{"dimension":"security","metric":"authentication_boundary","status":"observed","value_text":"open","evidence":"Live protocol probe observed auth_state=open. This describes discovery/access behavior; it is not by itself a vulnerability finding.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-28T08:00:45.712Z","methodology_version":"trust-v1"}],"response_benchmarks":[],"reviewed_field_reports":[],"interpretation":"Dimensions are independent; missing evidence is not a pass; field reports are qualitative, moderated and never votes."}