{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "uk-settlementcalculator-site",
  "component": "settlementcalculator",
  "generated_at": "2026-10-06T09:10:06.338Z",
  "tracking_since": "2026-09-06",
  "counts": {
    "critical": 0,
    "security": 11,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a10e9b-797c-7a5f-a0a1-02e0123da905",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.93",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-06",
      "occurred_at": "2026-10-06 00:27:03.048782+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "Stability (0.93 → pass)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a10e9b-797c-7a5f-a0a1-02e0123da905"
    },
    {
      "id": "chg_01a10e9b-7a40-7f0a-9597-3ba196b33c28",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "submit_enquiry",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "submit_enquiry"
      },
      "occurred_on": "2026-10-06",
      "occurred_at": "2026-10-06 00:27:03.048782+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "Tool “submit_enquiry” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a10e9b-7a40-7f0a-9597-3ba196b33c28"
    },
    {
      "id": "chg_01a10638-c00b-7917-8d4f-e5e362571ec9",
      "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": "2026-10-04",
      "occurred_at": "2026-10-04 09:22:24.794485+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a10638-c00b-7917-8d4f-e5e362571ec9"
    },
    {
      "id": "chg_01a10638-c00e-79b0-80b5-921e40bfe1c2",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 09:22:24.794485+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a10638-c00e-79b0-80b5-921e40bfe1c2"
    },
    {
      "id": "chg_01a10638-c00f-72eb-b783-93b73e04fb7a",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "5"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 09:22:24.794485+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 5 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/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a10638-c00f-72eb-b783-93b73e04fb7a"
    },
    {
      "id": "chg_01a101da-de69-7909-81e7-c6602d616261",
      "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": "429",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-10-03",
      "occurred_at": "2026-10-03 13:01:22.868905+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a101da-de69-7909-81e7-c6602d616261"
    },
    {
      "id": "chg_01a101da-de6a-7969-b41f-4add75aee881",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-03",
      "occurred_at": "2026-10-03 13:01:22.868905+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a101da-de6a-7969-b41f-4add75aee881"
    },
    {
      "id": "chg_01a101da-de6b-78a0-b4f1-22fc0d4646d8",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.87",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-03",
      "occurred_at": "2026-10-03 13:01:22.868905+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Stability (0.87 → unverified)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a101da-de6b-78a0-b4f1-22fc0d4646d8"
    },
    {
      "id": "chg_01a101da-de6d-7b47-81db-0771b8d258d1",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-03",
      "occurred_at": "2026-10-03 13:01:22.868905+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Authorization (Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a101da-de6d-7b47-81db-0771b8d258d1"
    },
    {
      "id": "chg_01a101da-de72-7ca1-b9b7-4bf2b41fde46",
      "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": "2026-10-03",
      "occurred_at": "2026-10-03 13:01:22.868905+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a101da-de72-7ca1-b9b7-4bf2b41fde46"
    },
    {
      "id": "chg_01a08a9a-f091-7a57-8b66-db328964a775",
      "kind": "check.verdict",
      "family": "https",
      "subject_kind": "check",
      "subject": "https",
      "subject_child": "",
      "from_code": "https.plaintext",
      "to_code": "https.enforced",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 09:16:44.635405+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "HTTPS (fail → pass)",
      "link": "https://verifymcp.io/servers/uk-settlementcalculator-site/settlementcalculator#chg-chg_01a08a9a-f091-7a57-8b66-db328964a775"
    }
  ],
  "days": [
    {
      "date": "2026-10-06",
      "total": 79,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-10-04",
      "total": 78,
      "delta": 55,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-10-03",
      "total": 23,
      "delta": -55,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-10-02",
      "total": 78,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 83,
        "to": 87,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 25,
          "to_days": 26
        },
        "partial": false,
        "compared_to": "2026-10-01",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-30",
      "total": 77,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 77,
        "to": 80,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 23,
          "to_days": 24
        },
        "partial": false,
        "compared_to": "2026-09-29",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-28",
      "total": 76,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-26",
      "total": 75,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 63,
        "to": 67,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 19,
          "to_days": 20
        },
        "partial": false,
        "compared_to": "2026-09-25",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-25",
      "total": 74,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}