{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "com-sigwren-sigwren",
  "component": "public",
  "generated_at": "2026-11-05T10:39:00.626Z",
  "tracking_since": "2026-10-23",
  "counts": {
    "critical": 1,
    "security": 6,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a1a0a8-ee38-7164-9091-c1ee4209a36f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_single_workout",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_single_workout"
      },
      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 09:06:28.00304+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Tool “get_single_workout” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/com-sigwren-sigwren/public#chg-chg_01a1a0a8-ee38-7164-9091-c1ee4209a36f"
    },
    {
      "id": "chg_01a19b81-c74d-7852-a624-f01f3f2b900e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_single_workout",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_single_workout"
      },
      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 09:05:36.054684+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Tool “get_single_workout” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/com-sigwren-sigwren/public#chg-chg_01a19b81-c74d-7852-a624-f01f3f2b900e"
    },
    {
      "id": "chg_01a1777b-1984-75bf-84d8-c229ab89fa58",
      "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": "2026-10-26",
      "occurred_at": "2026-10-26 09:11:58.563301+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/com-sigwren-sigwren/public#chg-chg_01a1777b-1984-75bf-84d8-c229ab89fa58"
    },
    {
      "id": "chg_01a1777b-197f-71be-adb4-d60204713f78",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_no_destructive",
      "to_code": "auth.none_destructive",
      "from_value": "partial",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "get_test_upload_link"
      },
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 09:11:58.563301+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Authorization (partial → fail)",
      "link": "https://verifymcp.io/servers/com-sigwren-sigwren/public#chg-chg_01a1777b-197f-71be-adb4-d60204713f78"
    },
    {
      "id": "chg_01a1777b-1982-757d-8268-781c2d1b64c9",
      "kind": "tool.added",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_form_check_link",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_form_check_link",
        "destructive": "true"
      },
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 09:11:58.563301+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "New tool “get_form_check_link”, which the server declares destructive",
      "link": "https://verifymcp.io/servers/com-sigwren-sigwren/public#chg-chg_01a1777b-1982-757d-8268-781c2d1b64c9"
    },
    {
      "id": "chg_01a1777b-1983-7421-a096-fa7cc924767f",
      "kind": "tool.added",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_test_upload_link",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_test_upload_link",
        "destructive": "true"
      },
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 09:11:58.563301+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "New tool “get_test_upload_link”, which the server declares destructive",
      "link": "https://verifymcp.io/servers/com-sigwren-sigwren/public#chg-chg_01a1777b-1983-7421-a096-fa7cc924767f"
    },
    {
      "id": "chg_01a16d2e-b8bf-7b60-b123-6f0356175667",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "find_race",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "find_race"
      },
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 09:12:20.908863+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “find_race” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/com-sigwren-sigwren/public#chg-chg_01a16d2e-b8bf-7b60-b123-6f0356175667"
    }
  ],
  "days": [
    {
      "date": "2026-11-03",
      "total": 63,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-11-02",
      "total": 62,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-11-01",
      "total": 62,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 27,
        "to": 30,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 8,
          "to_days": 9
        },
        "partial": false,
        "compared_to": "2026-10-31",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-30",
      "total": 61,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 20,
        "to": 23,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 6,
          "to_days": 7
        },
        "partial": false,
        "compared_to": "2026-10-29",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-28",
      "total": 60,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 13,
        "to": 17,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 4,
          "to_days": 5
        },
        "partial": false,
        "compared_to": "2026-10-27",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-26",
      "total": 59,
      "delta": -6,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-10-25",
      "total": 65,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-10-24",
      "total": 64,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    }
  ]
}