{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "uk-quantdata-quantdata",
  "component": "api",
  "generated_at": "2026-09-27T01:35:31.263Z",
  "tracking_since": "2026-07-30",
  "counts": {
    "critical": 0,
    "security": 10,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a07f9f-c424-762e-9cd0-d13805c7989e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "quantdata_request_free_api_key",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "quantdata_request_free_api_key"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 06:06:11.858737+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “quantdata_request_free_api_key” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_01a07f9f-c424-762e-9cd0-d13805c7989e"
    },
    {
      "id": "chg_01a07f9f-c426-7d04-aeb6-068abffb81ae",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 06:06:11.858737+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_01a07f9f-c426-7d04-aeb6-068abffb81ae"
    },
    {
      "id": "chg_01a07553-9f20-7506-a337-939b70e65c34",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.stable",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 06:06:49.516239+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_01a07553-9f20-7506-a337-939b70e65c34"
    },
    {
      "id": "chg_01a0137a-4577-7bec-b072-a7283522de39",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "quantdata_weis_wave",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "quantdata_weis_wave"
      },
      "occurred_on": "2026-08-18",
      "occurred_at": "2026-08-18 06:06:15.242912+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Tool “quantdata_weis_wave” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_01a0137a-4577-7bec-b072-a7283522de39"
    },
    {
      "id": "chg_019fea47-9a5f-7ddd-9949-3bbb33ac41f1",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "quantdata_weis_wave",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "quantdata_weis_wave"
      },
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 06:06:28.861205+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Tool “quantdata_weis_wave” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_019fea47-9a5f-7ddd-9949-3bbb33ac41f1"
    },
    {
      "id": "chg_019fe521-1f02-7a19-b592-3a5114515180",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "quantdata_brooks_events",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "quantdata_brooks_events"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 06:06:20.86519+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Tool “quantdata_brooks_events” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_019fe521-1f02-7a19-b592-3a5114515180"
    },
    {
      "id": "chg_019fdad4-1bd2-770d-b432-faf825455a7e",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.23",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "8",
        "added": "2",
        "breaks": "0",
        "removed": "1",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 06:06:01.496925+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Stability (0.23 → fail)",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_019fdad4-1bd2-770d-b432-faf825455a7e"
    },
    {
      "id": "chg_019fdad4-1bdb-762d-8d14-ff84ed2f0135",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "quantdata_day_type",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "quantdata_day_type"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 06:06:01.496925+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Tool “quantdata_day_type” was removed",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_019fdad4-1bdb-762d-8d14-ff84ed2f0135"
    },
    {
      "id": "chg_019fdad4-1bdd-7306-b51e-d57e9cfe705b",
      "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": "2026-08-07",
      "occurred_at": "2026-08-07 06:06:01.496925+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_019fdad4-1bdd-7306-b51e-d57e9cfe705b"
    },
    {
      "id": "chg_019fc115-31ce-7bbc-bdfd-0dc92a3445ba",
      "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": "2026-08-02",
      "occurred_at": "2026-08-02 06:06:59.52366+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/uk-quantdata-quantdata/api#chg-chg_019fc115-31ce-7bbc-bdfd-0dc92a3445ba"
    }
  ],
  "days": [
    {
      "date": "2026-09-25",
      "total": 74,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-08",
      "total": 74,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
    },
    {
      "date": "2026-09-06",
      "total": 74,
      "delta": 2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-30",
      "total": 72,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 75,
        "to": 80,
        "delta": 5,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-08-29",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 75 to 80."
      },
      "event_count": 0
    },
    {
      "date": "2026-08-29",
      "total": 71,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 72,
        "to": 75,
        "delta": 3,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-08-28",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 72 to 75."
      },
      "event_count": 0
    },
    {
      "date": "2026-08-26",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-18",
      "total": 0,
      "delta": null,
      "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
    }
  ]
}