{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "com-a2awire-data-windows-security-update-microsoft-cvrf",
  "component": "mcp-data-msrcwatch-microsoft-msrc-security-updates-99ddab-http",
  "generated_at": "2026-09-21T00:30:42.053Z",
  "tracking_since": "2026-09-07",
  "counts": {
    "critical": 0,
    "security": 5,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0b81e-933e-7421-9e1d-baad4a150e99",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "a2awire_guide",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "a2awire_guide"
      },
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 05:23:26.377837+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Tool “a2awire_guide” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/com-a2awire-data-windows-security-update-microsoft-cvrf/mcp-data-msrcwatch-microsoft-msrc-security-updates-99ddab-http#chg-chg_01a0b81e-933e-7421-9e1d-baad4a150e99"
    },
    {
      "id": "chg_01a0b81e-9342-7350-953c-038af8532455",
      "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": "2026-09-19",
      "occurred_at": "2026-09-19 05:23:26.377837+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/com-a2awire-data-windows-security-update-microsoft-cvrf/mcp-data-msrcwatch-microsoft-msrc-security-updates-99ddab-http#chg-chg_01a0b81e-9342-7350-953c-038af8532455"
    },
    {
      "id": "chg_01a0b2f6-d882-7353-a6ac-040d71caf749",
      "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": "2026-09-18",
      "occurred_at": "2026-09-18 05:21:56.566955+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/com-a2awire-data-windows-security-update-microsoft-cvrf/mcp-data-msrcwatch-microsoft-msrc-security-updates-99ddab-http#chg-chg_01a0b2f6-d882-7353-a6ac-040d71caf749"
    },
    {
      "id": "chg_01a089be-d284-76f4-b2dd-5c6b5773336d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "a2awire_guide",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "a2awire_guide"
      },
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 05:16:19.164585+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “a2awire_guide” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/com-a2awire-data-windows-security-update-microsoft-cvrf/mcp-data-msrcwatch-microsoft-msrc-security-updates-99ddab-http#chg-chg_01a089be-d284-76f4-b2dd-5c6b5773336d"
    },
    {
      "id": "chg_01a07f67-ceaf-79f4-925d-8cbe2153eca1",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "data_session_open",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "data_session_open"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 05:05:04.394515+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “data_session_open” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/com-a2awire-data-windows-security-update-microsoft-cvrf/mcp-data-msrcwatch-microsoft-msrc-security-updates-99ddab-http#chg-chg_01a07f67-ceaf-79f4-925d-8cbe2153eca1"
    }
  ],
  "days": [
    {
      "date": "2026-09-19",
      "total": 70,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-18",
      "total": 70,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-16",
      "total": 69,
      "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": "2026-09-15",
        "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": "2026-09-14",
      "total": 68,
      "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": "2026-09-13",
        "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": "2026-09-12",
      "total": 67,
      "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": "2026-09-11",
        "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": "2026-09-10",
      "total": 66,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-08",
      "total": 65,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-09-07",
      "total": 64,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 0
    }
  ]
}