{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "cyanheads-noaa-marine-mcp-server",
  "component": "noaa-marine",
  "generated_at": "2026-09-21T07:32:17.838Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 18,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0b087-071a-7323-a382-686927aebbeb",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 18:00:33.849175+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a0b087-071a-7323-a382-686927aebbeb"
    },
    {
      "id": "chg_01a0b087-0719-7490-9e84-65ae8a188549",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "noaa_marine_get_water_level",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "noaa_marine_get_water_level"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 18:00:33.849175+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Tool “noaa_marine_get_water_level” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a0b087-0719-7490-9e84-65ae8a188549"
    },
    {
      "id": "chg_01a0b087-0718-784d-b1bd-aeca1218c120",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "noaa_marine_get_tide_predictions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "noaa_marine_get_tide_predictions"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 18:00:33.849175+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Tool “noaa_marine_get_tide_predictions” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a0b087-0718-784d-b1bd-aeca1218c120"
    },
    {
      "id": "chg_01a0b087-0716-7e34-9766-cf74e622bd05",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "noaa_marine_get_ocean_observations",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "noaa_marine_get_ocean_observations"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 18:00:33.849175+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Tool “noaa_marine_get_ocean_observations” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a0b087-0716-7e34-9766-cf74e622bd05"
    },
    {
      "id": "chg_01a0b087-0716-7485-95eb-cae4a35c474b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "noaa_marine_get_currents",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "noaa_marine_get_currents"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 18:00:33.849175+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Tool “noaa_marine_get_currents” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a0b087-0716-7485-95eb-cae4a35c474b"
    },
    {
      "id": "chg_01a0b087-0715-7443-b5cd-5aa7ad8fd11f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "noaa_marine_get_current_profile",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "noaa_marine_get_current_profile"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 18:00:33.849175+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Tool “noaa_marine_get_current_profile” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a0b087-0715-7443-b5cd-5aa7ad8fd11f"
    },
    {
      "id": "chg_01a0b087-0714-7d52-a03a-acc5d725a39a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "noaa_marine_get_conditions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "noaa_marine_get_conditions"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 18:00:33.849175+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Tool “noaa_marine_get_conditions” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a0b087-0714-7d52-a03a-acc5d725a39a"
    },
    {
      "id": "chg_01a0b087-0712-7a39-a550-c5019256c5c2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "noaa_marine_find_stations",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "noaa_marine_find_stations"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 18:00:33.849175+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Tool “noaa_marine_find_stations” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a0b087-0712-7a39-a550-c5019256c5c2"
    },
    {
      "id": "chg_01a084fc-c36e-7bed-953a-13db17ac6f92",
      "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 07:05:52.683947+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a084fc-c36e-7bed-953a-13db17ac6f92"
    },
    {
      "id": "chg_01a03717-faa3-7284-ba91-3fb155815a93",
      "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 04:05:13.401274+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_01a03717-faa3-7284-ba91-3fb155815a93"
    },
    {
      "id": "chg_019fea7d-101d-7cf1-83a0-4aeeeff0efac",
      "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 07:04:52.418871+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_019fea7d-101d-7cf1-83a0-4aeeeff0efac"
    },
    {
      "id": "chg_019fea7d-101c-7d27-a1e4-f7c97917ccc6",
      "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 07:04:52.418871+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "HSTS header (fail → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_019fea7d-101c-7d27-a1e4-f7c97917ccc6"
    },
    {
      "id": "chg_019fea7d-101e-730b-9113-691b4a9b0b12",
      "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": "7"
      },
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 07:04:52.418871+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 7 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-noaa-marine-mcp-server/noaa-marine#chg-chg_019fea7d-101e-730b-9113-691b4a9b0b12"
    },
    {
      "id": "chg_019fe030-495a-73c2-9dc3-bb79bfcf9b80",
      "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 07:04:48.71488+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 tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_019fe030-495a-73c2-9dc3-bb79bfcf9b80"
    },
    {
      "id": "chg_019fe030-4959-7a0a-9a8b-e3f2ed480cee",
      "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 07:04:48.71488+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "HSTS header (pass → fail)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_019fe030-4959-7a0a-9a8b-e3f2ed480cee"
    },
    {
      "id": "chg_019fe030-4959-7533-9dd3-5c5681e1d798",
      "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 07:04:48.71488+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Stability (0.40 → unverified)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_019fe030-4959-7533-9dd3-5c5681e1d798"
    },
    {
      "id": "chg_019fe030-4958-77b1-b4fa-dcfcf8054eca",
      "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 07:04:48.71488+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_019fe030-4958-77b1-b4fa-dcfcf8054eca"
    },
    {
      "id": "chg_019fe030-495b-7374-ab32-7ef4d160a6bb",
      "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 07:04:48.71488+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/cyanheads-noaa-marine-mcp-server/noaa-marine#chg-chg_019fe030-495b-7374-ab32-7ef4d160a6bb"
    }
  ],
  "days": [
    {
      "date": "2026-09-17",
      "total": 79,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 26
    },
    {
      "date": "2026-09-16",
      "total": 80,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-09",
      "total": 80,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-08",
      "total": 80,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 93,
        "to": 97,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 28,
          "to_days": 29
        },
        "partial": false,
        "compared_to": "2026-09-07",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-07",
      "total": 79,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-26",
      "total": 80,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-25",
      "total": 80,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 4
    },
    {
      "date": "2026-08-11",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}