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action tools are checked on their declared contract (never fired); private-data tools use the operator-invited pathway; generative tools get disclosure checks, never truth verdicts", "get_verified": "https://robinsaige.com/operators#submit (kind: invite)"}, "confirmed_drift_events": 0, "truth_checks": {"in_tier2_lane": false, "checked": 0, "agree": 0, "disagree": 0, "unverifiable": 0, "note": "not in the Tier-2 trade lane yet \u2014 no public primary wired for this server"}, "probes_on_record": 3, "rating": {"verdict": "warn", "verdict_reason": "farm-costume \u2014 usable, but look before you lean on it", "cluster": "farm-costume", "distinctiveness": 0.386, "cohort": 15472, "distinctiveness_note": "0=typical, 1=highly unusual vs the 15,472-server population", "reach": {"answers": "alive_tools", "latency_ms": 74, "latency_vs_population": "fast", "protocol": "current", "auth": "open"}, "use": {"tools": 22, "inventory_vs_population": "mid", "capability_breadth": 1, "harness_readiness": "B"}, "trust": {"identity": "farm_member", "servers_on_host": 1115, "servers_on_domain": 1115, "inventory_duplicated_elsewhere": true, "verifiability": "unassessed", "confirmed_drift_events": 0, "answers_true": "no public primary wired \u2014 not truth-checkable"}, "as_of": "2026-09-06T06:21:45Z", "method_version": "profile-v1", "coverage": "every axis is a percentile/class WITHIN the census cohort of 15,472 servers, not 'of all MCP servers'.", "not_claimed": ["a dated observation, not a warranty", "schema/description axes are sparse until the next full re-probe", "auth-walled internals are unverified from outside"]}, "receipt": {"signed": true, "id": "rr_bf3b0f6e4d019ea9bbb25cd3", "key_id": "rs-rcpt-2026-08", "alg": "ed25519", "payload": {"type": "rating", "server": "io.github.mcp-dir/calculo-mcp", "verdict": "warn", "cluster": "farm-costume", "distinctiveness": 0.386, "as_of": "2026-09-06T06:21:45Z", "method_version": "profile-v1", "rating_sha256": "7f792b5dedff6da918229c090582018917d3c1c09e37eb0e1003d65734377441", "key_id": "rs-rcpt-2026-08"}, "signature": "Yl51UzypOg7Jix6m-EtpcTG1JHsM9QcdiK4hAcYXPGWvaUL8tQKMW6dJ2MlyWEfX1_38YAMde3JPNNOpIAKFDw", "issued_at": "2026-09-09T11:24:35Z", "verify": "ed25519.verify(published_key, canonical_json(payload), base64url_decode(signature)); 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