{"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":"2026-09-11T04:06:09.548Z","server":{"name":"md.mostlyright/datasets","title":"Mostly Right","description":"Search, sample and query open reproducible datasets published as immutable Parquet with schemas.","version":"2.0.0","remote_url":"https://mostlyright.md/api/mcp","repo_url":null},"operational_grade":{"grade":"A","score":97,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":458,"tool_count":31,"probed_at":"2026-09-10T23:45:38.921Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 458ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo mostlyright@2.0.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 31 tools e.g. \"search_datasets\"; 31/31 described, 31/31 fully-typed schemas, median description 575 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 458ms"},{"criterion":"provenance","points":12,"max":15,"evidence":"description present; no repository URL; version 2.0.0; namespace md.mostlyright 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":"claim_verification","metric":"advertised_corpus_scale","status":"unverified","value_text":"22,000 records","evidence":"Advertised corpus-size expression(s) found in public metadata/tool descriptions: 22,000 records. Black-box discovery does not establish corpus coverage; a manifest or sampled benchmark is required.","source_type":"live_probe","sample_size":null,"observed_at":"2026-09-10T23:45:38.921Z","methodology_version":"trust-v1"},{"dimension":"citation_quality","metric":"citation_capability_advertised","status":"unverified","value_text":null,"evidence":"Metadata/tool descriptions advertise citation or evidence capability: Read the mostlyright://recipe-reference resource before writing one, and mostlyright://recipes/examples for working documents | A recipe references a credential by name, so this is how you learn which names exist. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-09-10T23:45:38.921Z","methodology_version":"trust-v1"},{"dimension":"security","metric":"sensitive_capabilities_declared","status":"concern","value_text":"run_events, list_source_credentials","evidence":"2 discovered tool(s) advertise potentially state-changing or privileged capabilities. Tool names: run_events, list_source_credentials. Classification is description-based and does not prove exploitability.","source_type":"live_probe","sample_size":2,"observed_at":"2026-09-10T23:45:38.921Z","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":"2026-09-10T23:45:38.921Z","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."}