{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "pt-casatoo-casatoo",
  "component": "api",
  "generated_at": "2026-09-21T11:58:42.635Z",
  "tracking_since": "2026-08-22",
  "counts": {
    "critical": 0,
    "security": 6,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0747b-b6d5-7463-9629-b2ccaf21e4b8",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 02:10:59.744238+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pt-casatoo-casatoo/api#chg-chg_01a0747b-b6d5-7463-9629-b2ccaf21e4b8"
    },
    {
      "id": "chg_01a03188-51b2-7aa8-86a9-5b90b91107cb",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.03",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "2",
        "added": "0",
        "breaks": "1",
        "removed": "0",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 02:10:12.477811+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Stability (0.03 → fail)",
      "link": "https://verifymcp.io/servers/pt-casatoo-casatoo/api#chg-chg_01a03188-51b2-7aa8-86a9-5b90b91107cb"
    },
    {
      "id": "chg_01a03188-51b3-7eee-86b6-b3b54c4f94a3",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "casatoo_build_search_link",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "casatoo_build_search_link"
      },
      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 02:10:12.477811+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “casatoo_build_search_link” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pt-casatoo-casatoo/api#chg-chg_01a03188-51b3-7eee-86b6-b3b54c4f94a3"
    },
    {
      "id": "chg_01a03188-51b5-7b39-a81d-d33b7e055e06",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "casatoo_search_listings",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "casatoo_search_listings"
      },
      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 02:10:12.477811+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “casatoo_search_listings” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pt-casatoo-casatoo/api#chg-chg_01a03188-51b5-7b39-a81d-d33b7e055e06"
    },
    {
      "id": "chg_01a03188-51b8-7b15-ba92-bd10821274e7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "casatoo_search_locations",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "casatoo_search_locations"
      },
      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 02:10:12.477811+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “casatoo_search_locations” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pt-casatoo-casatoo/api#chg-chg_01a03188-51b8-7b15-ba92-bd10821274e7"
    },
    {
      "id": "chg_01a03188-51b9-79bb-a6f0-c8bda5cf5e5e",
      "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": "2026-08-24",
      "occurred_at": "2026-08-24 02:10:12.477811+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pt-casatoo-casatoo/api#chg-chg_01a03188-51b9-79bb-a6f0-c8bda5cf5e5e"
    }
  ],
  "days": [
    {
      "date": "2026-09-20",
      "total": 86,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 83,
        "to": 87,
        "delta": 4,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-19",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 83 to 87."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-18",
      "total": 85,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 77,
        "to": 80,
        "delta": 3,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-17",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 77 to 80."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-16",
      "total": 84,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 70,
        "to": 73,
        "delta": 3,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-15",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 70 to 73."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-14",
      "total": 83,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 63,
        "to": 67,
        "delta": 4,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-13",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 63 to 67."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-12",
      "total": 82,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 57,
        "to": 60,
        "delta": 3,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-11",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 57 to 60."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-10",
      "total": 81,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 50,
        "to": 53,
        "delta": 3,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-09",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 50 to 53."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-08",
      "total": 80,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 43,
        "to": 47,
        "delta": 4,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-07",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 43 to 47."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-06",
      "total": 79,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 4
    }
  ]
}