{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "cyanheads-faa-aircraft-registry-mcp-server",
  "component": "faa-aircraft-registry",
  "generated_at": "2026-09-28T12:53:34.277Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 15,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0845b-8957-7c54-a974-cbf96e670ff6",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:09:46.485558+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_01a0845b-8957-7c54-a974-cbf96e670ff6"
    },
    {
      "id": "chg_01a0371a-11e2-7450-b0ec-4d39d3cfb825",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "faa_get_registration_status",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "faa_get_registration_status"
      },
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 04:07:30.394968+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Tool “faa_get_registration_status” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_01a0371a-11e2-7450-b0ec-4d39d3cfb825"
    },
    {
      "id": "chg_01a0371a-11e3-7a8b-987c-9ead93cbe775",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "faa_search_registrations",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "faa_search_registrations"
      },
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 04:07:30.394968+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Tool “faa_search_registrations” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_01a0371a-11e3-7a8b-987c-9ead93cbe775"
    },
    {
      "id": "chg_01a0371a-11e3-75ac-9844-34164d624cc8",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "faa_search_aircraft_types",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "faa_search_aircraft_types"
      },
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 04:07:30.394968+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Tool “faa_search_aircraft_types” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_01a0371a-11e3-75ac-9844-34164d624cc8"
    },
    {
      "id": "chg_01a0371a-11e2-78d7-9504-f3cdd0611ad9",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "faa_lookup_registration",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "faa_lookup_registration"
      },
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 04:07:30.394968+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Tool “faa_lookup_registration” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_01a0371a-11e2-78d7-9504-f3cdd0611ad9"
    },
    {
      "id": "chg_01a0371a-11e1-7cc5-a347-a51695cf96af",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "faa_get_aircraft_type",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "faa_get_aircraft_type"
      },
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 04:07:30.394968+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Tool “faa_get_aircraft_type” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_01a0371a-11e1-7cc5-a347-a51695cf96af"
    },
    {
      "id": "chg_01a0371a-11e0-72a0-9b02-c85adda014db",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 04:07:30.394968+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_01a0371a-11e0-72a0-9b02-c85adda014db"
    },
    {
      "id": "chg_019fe9d8-8ab2-74d2-bb6d-c40cbf9bc32b",
      "kind": "check.verdict",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.hsts_absent",
      "to_code": "headers.hsts_present",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 04:05:10.328317+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "HSTS header (fail → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_019fe9d8-8ab2-74d2-bb6d-c40cbf9bc32b"
    },
    {
      "id": "chg_019fe9d8-8ab3-749e-b54f-9eca90f9f84c",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.http_error",
      "to_code": "transport.verified",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 04:05:10.328317+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_019fe9d8-8ab3-749e-b54f-9eca90f9f84c"
    },
    {
      "id": "chg_019fe9d8-8ab3-7a33-bf6e-86182494a2de",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "5"
      },
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 04:05:10.328317+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_019fe9d8-8ab3-7a33-bf6e-86182494a2de"
    },
    {
      "id": "chg_019fdf8b-bb6d-7b18-a2d6-dadf0f2d765d",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.http_error",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "status": "530",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 04:05:04.423089+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_019fdf8b-bb6d-7b18-a2d6-dadf0f2d765d"
    },
    {
      "id": "chg_019fdf8b-bb6f-749c-823b-95359cd6002a",
      "kind": "check.verdict",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.hsts_present",
      "to_code": "headers.hsts_absent",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 04:05:04.423089+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "HSTS header (pass → fail)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_019fdf8b-bb6f-749c-823b-95359cd6002a"
    },
    {
      "id": "chg_019fdf8b-bb6e-7ee8-82f0-46b98b593f44",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.40",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 04:05:04.423089+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Stability (0.40 → unverified)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_019fdf8b-bb6e-7ee8-82f0-46b98b593f44"
    },
    {
      "id": "chg_019fdf8b-bb71-743d-82e7-3550ee7a02ec",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 04:05:04.423089+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_019fdf8b-bb71-743d-82e7-3550ee7a02ec"
    },
    {
      "id": "chg_019fdf8b-bb6f-7852-89e9-a60914d2451d",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 04:05:04.423089+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the whole tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#chg-chg_019fdf8b-bb6f-7852-89e9-a60914d2451d"
    }
  ],
  "days": [
    {
      "date": "2026-09-28",
      "total": 88,
      "delta": 7,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-25",
      "total": 81,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-20",
      "total": 81,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-09",
      "total": 81,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-07",
      "total": 80,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-26",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-25",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 9
    },
    {
      "date": "2026-08-11",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}