{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "cyanheads-osv-advisory-mcp-server",
  "component": "osv-advisory",
  "generated_at": "2026-09-28T14:01:03.212Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 12,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0d4ca-846f-728f-98c1-ff06e2e1c981",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "osv_query_package",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "osv_query_package"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 19:00:34.81555+00",
      "observed_since": "2026-09-24",
      "source": "scan",
      "summary": "Tool “osv_query_package” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_01a0d4ca-846f-728f-98c1-ff06e2e1c981"
    },
    {
      "id": "chg_01a0d4ca-846b-7ee3-9683-f2b7f83453e2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "osv_list_ecosystems",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "osv_list_ecosystems"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 19:00:34.81555+00",
      "observed_since": "2026-09-24",
      "source": "scan",
      "summary": "Tool “osv_list_ecosystems” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_01a0d4ca-846b-7ee3-9683-f2b7f83453e2"
    },
    {
      "id": "chg_01a083b9-e92c-7717-822f-2ef90eff534b",
      "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 01:13:14.229519+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_01a083b9-e92c-7717-822f-2ef90eff534b"
    },
    {
      "id": "chg_01a03678-dd38-7d48-9a1a-2c4e44f49ad1",
      "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 01:11:25.706142+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_01a03678-dd38-7d48-9a1a-2c4e44f49ad1"
    },
    {
      "id": "chg_019fe939-1cf5-7c35-930c-c8163d22f7fe",
      "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 01:11:02.070665+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "HSTS header (fail → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_019fe939-1cf5-7c35-930c-c8163d22f7fe"
    },
    {
      "id": "chg_019fe939-1cf6-7824-ad70-ab6cc5b911ae",
      "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 01:11:02.070665+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_019fe939-1cf6-7824-ad70-ab6cc5b911ae"
    },
    {
      "id": "chg_019fe939-1cf6-7e14-adf6-b9f6bc373016",
      "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": "4"
      },
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 01:11:02.070665+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 4 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-osv-advisory-mcp-server/osv-advisory#chg-chg_019fe939-1cf6-7e14-adf6-b9f6bc373016"
    },
    {
      "id": "chg_019fdeec-808c-75ce-a30f-b06beaf0ee3f",
      "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 01:11:09.1601+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Stability (0.40 → unverified)",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_019fdeec-808c-75ce-a30f-b06beaf0ee3f"
    },
    {
      "id": "chg_019fdeec-808c-7b48-a4fe-8b96fb2f60b2",
      "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 01:11:09.1601+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "HSTS header (pass → fail)",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_019fdeec-808c-7b48-a4fe-8b96fb2f60b2"
    },
    {
      "id": "chg_019fdeec-808d-7263-b9cf-f15ada470116",
      "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 01:11:09.1601+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-osv-advisory-mcp-server/osv-advisory#chg-chg_019fdeec-808d-7263-b9cf-f15ada470116"
    },
    {
      "id": "chg_019fdeec-808b-7a49-b46d-879a5a174bf5",
      "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 01:11:09.1601+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_019fdeec-808b-7a49-b46d-879a5a174bf5"
    },
    {
      "id": "chg_019fdeec-808e-7833-af36-877597bcc386",
      "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 01:11:09.1601+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/cyanheads-osv-advisory-mcp-server/osv-advisory#chg-chg_019fdeec-808e-7833-af36-877597bcc386"
    }
  ],
  "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": "2026-09-24",
      "total": 81,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 4
    },
    {
      "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": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-08",
      "total": 81,
      "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": 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
    }
  ]
}