{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "uk-co-pubmortgagecalculator-site",
  "component": "pubmortgagecalculator",
  "generated_at": "2026-09-20T17:42:30.400Z",
  "tracking_since": "2026-09-06",
  "counts": {
    "critical": 0,
    "security": 20,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0b737-1fa2-7eea-8cf0-73891dbc393f",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.insufficient_history",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 01:10:38.18923+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Stability (fail → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0b737-1fa2-7eea-8cf0-73891dbc393f"
    },
    {
      "id": "chg_01a0b737-1fa4-72d9-8eb1-563ca20cc633",
      "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": "2026-09-19",
      "occurred_at": "2026-09-19 01:10:38.18923+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0b737-1fa4-72d9-8eb1-563ca20cc633"
    },
    {
      "id": "chg_01a0b210-dbfb-7b84-9256-7fa7530e777d",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.churn",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "12",
        "added": "0",
        "breaks": "0",
        "removed": "5",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-18",
      "occurred_at": "2026-09-18 01:10:44.349795+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Stability (unverified → fail)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0b210-dbfb-7b84-9256-7fa7530e777d"
    },
    {
      "id": "chg_01a0a29e-1f17-70a0-80a8-4c15ee385584",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.27",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 01:11:06.716786+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Stability (0.27 → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0a29e-1f17-70a0-80a8-4c15ee385584"
    },
    {
      "id": "chg_01a0a29e-1f18-7be0-8144-021fda693555",
      "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": "2026-09-15",
      "occurred_at": "2026-09-15 01:11:06.716786+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0a29e-1f18-7be0-8144-021fda693555"
    },
    {
      "id": "chg_01a0a29e-1f1b-7df4-a2f4-9017f5db545d",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 01:11:06.716786+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0a29e-1f1b-7df4-a2f4-9017f5db545d"
    },
    {
      "id": "chg_01a0a29e-1f21-7e5f-a48b-cf38f55471c6",
      "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": "2026-09-15",
      "occurred_at": "2026-09-15 01:11:06.716786+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0a29e-1f21-7e5f-a48b-cf38f55471c6"
    },
    {
      "id": "chg_01a09d78-fe4e-7e3d-90b9-242a0cd128b0",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 01:12:27.428243+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a09d78-fe4e-7e3d-90b9-242a0cd128b0"
    },
    {
      "id": "chg_01a09d78-fe4f-7d2f-b9e5-37b0ccb2f980",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 01:12:27.428243+00",
      "observed_since": "2026-09-13",
      "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-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a09d78-fe4f-7d2f-b9e5-37b0ccb2f980"
    },
    {
      "id": "chg_01a09853-43ac-710f-b238-c9df892a332b",
      "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": "2026-09-13",
      "occurred_at": "2026-09-13 01:13:08.740731+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a09853-43ac-710f-b238-c9df892a332b"
    },
    {
      "id": "chg_01a09853-43ad-70dd-a7cf-0058dd755d2b",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.20",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 01:13:08.740731+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Stability (0.20 → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a09853-43ad-70dd-a7cf-0058dd755d2b"
    },
    {
      "id": "chg_01a09853-43ae-7ace-ae1d-8d9881564950",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 01:13:08.740731+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a09853-43ae-7ace-ae1d-8d9881564950"
    },
    {
      "id": "chg_01a09853-43b2-777a-911c-113f563ca1ca",
      "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": "2026-09-13",
      "occurred_at": "2026-09-13 01:13:08.740731+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a09853-43b2-777a-911c-113f563ca1ca"
    },
    {
      "id": "chg_01a0932c-2be8-78e1-b528-fe59d9f2bc5f",
      "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": "2026-09-12",
      "occurred_at": "2026-09-12 01:12:20.639049+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0932c-2be8-78e1-b528-fe59d9f2bc5f"
    },
    {
      "id": "chg_01a0932c-2bec-7762-aea3-b7460e4bd5c2",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "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": "2026-09-12",
      "occurred_at": "2026-09-12 01:12:20.639049+00",
      "observed_since": "2026-09-11",
      "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-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a0932c-2bec-7762-aea3-b7460e4bd5c2"
    },
    {
      "id": "chg_01a088df-83e3-7bca-be81-73712f0491c6",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.10",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 01:12:24.749511+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Stability (0.10 → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a088df-83e3-7bca-be81-73712f0491c6"
    },
    {
      "id": "chg_01a088df-83e4-797c-8c91-eb1d99ee1068",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 01:12:24.749511+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a088df-83e4-797c-8c91-eb1d99ee1068"
    },
    {
      "id": "chg_01a088df-83e5-762f-8b0c-ac48dac76d88",
      "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 01:12:24.749511+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "HTTPS (fail → pass)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a088df-83e5-762f-8b0c-ac48dac76d88"
    },
    {
      "id": "chg_01a088df-83e6-71a3-a63e-e4312e4cd8d1",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 01:12:24.749511+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a088df-83e6-71a3-a63e-e4312e4cd8d1"
    },
    {
      "id": "chg_01a088df-83f0-7681-891c-4141ba07620f",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 01:12:24.749511+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/uk-co-pubmortgagecalculator-site/pubmortgagecalculator#chg-chg_01a088df-83f0-7681-891c-4141ba07620f"
    }
  ],
  "days": [
    {
      "date": "2026-09-19",
      "total": 33,
      "delta": -15,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-09-18",
      "total": 48,
      "delta": 15,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-15",
      "total": 33,
      "delta": -36,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-14",
      "total": 69,
      "delta": 36,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-13",
      "total": 33,
      "delta": -35,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-12",
      "total": 68,
      "delta": 35,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-10",
      "total": 33,
      "delta": -29,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-09-08",
      "total": 62,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 3,
        "to": 7,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 1,
          "to_days": 2
        },
        "partial": false,
        "compared_to": "2026-09-07",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    }
  ]
}