{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "uk-co-vacantpropertysecuritycost-site",
  "component": "vacantpropertysecuritycost",
  "generated_at": "2026-11-06T22:03:17.513Z",
  "tracking_since": "2026-09-06",
  "counts": {
    "critical": 0,
    "security": 28,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a14274-0636-7337-b3e6-06b47ec360a7",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-16",
      "occurred_at": "2026-10-16 02:04:19.149213+00",
      "observed_since": "2026-10-15",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a14274-0636-7337-b3e6-06b47ec360a7"
    },
    {
      "id": "chg_01a10f65-5096-7626-b746-3cf9865ac371",
      "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 04:07:33.947503+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "Stability (0.93 → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a10f65-5096-7626-b746-3cf9865ac371"
    },
    {
      "id": "chg_01a10f65-52f0-7c87-a584-0b2c004eb39f",
      "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 04:07:33.947503+00",
      "observed_since": "2026-10-05",
      "source": "scan",
      "summary": "Tool “submit_enquiry” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a10f65-52f0-7c87-a584-0b2c004eb39f"
    },
    {
      "id": "chg_01a104af-a97e-7499-9cbd-db04fd7fc781",
      "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 02:13:03.403605+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a104af-a97e-7499-9cbd-db04fd7fc781"
    },
    {
      "id": "chg_01a104af-a97f-72d3-b3a2-9da88c5272fd",
      "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 02:13:03.403605+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a104af-a97f-72d3-b3a2-9da88c5272fd"
    },
    {
      "id": "chg_01a104af-a97f-7a91-8f0a-19d0360a6880",
      "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": "3"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 02:13:03.403605+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 3 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-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a104af-a97f-7a91-8f0a-19d0360a6880"
    },
    {
      "id": "chg_01a101da-7f57-74a5-93ab-8be0eac9c81a",
      "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 13:00:58.800893+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a101da-7f57-74a5-93ab-8be0eac9c81a"
    },
    {
      "id": "chg_01a101da-7f58-70d9-a03c-dd6fe7e6d507",
      "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 13:00:58.800893+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a101da-7f58-70d9-a03c-dd6fe7e6d507"
    },
    {
      "id": "chg_01a101da-7f58-76da-9cc6-e83b43a349dc",
      "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 13:00:58.800893+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Stability (0.87 → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a101da-7f58-76da-9cc6-e83b43a349dc"
    },
    {
      "id": "chg_01a101da-7f59-7228-811e-a5b3dda475ae",
      "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 13:00:58.800893+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-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a101da-7f59-7228-811e-a5b3dda475ae"
    },
    {
      "id": "chg_01a101da-7f5a-714f-8ca4-4e951dfedc38",
      "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 13:00:58.800893+00",
      "observed_since": "2026-10-02",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a101da-7f5a-714f-8ca4-4e951dfedc38"
    },
    {
      "id": "chg_01a0a7fe-2765-7737-b3f2-5e68fa3595e9",
      "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": "2026-09-16",
      "occurred_at": "2026-09-16 02:14:06.370107+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a0a7fe-2765-7737-b3f2-5e68fa3595e9"
    },
    {
      "id": "chg_01a0a7fe-2766-7a70-8298-f87d2aa340c2",
      "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": "2026-09-16",
      "occurred_at": "2026-09-16 02:14:06.370107+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a0a7fe-2766-7a70-8298-f87d2aa340c2"
    },
    {
      "id": "chg_01a0a7fe-2767-72be-8d34-0021ab846c95",
      "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": "3"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 02:14:06.370107+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 3 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-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a0a7fe-2767-72be-8d34-0021ab846c95"
    },
    {
      "id": "chg_01a09db0-48bb-7b40-99d6-2b87f698a9e4",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.23",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 02:12:50.941228+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Stability (0.23 → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a09db0-48bb-7b40-99d6-2b87f698a9e4"
    },
    {
      "id": "chg_01a09db0-48bc-78c9-85ba-f2a3cd78d69e",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 02:12:50.941228+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a09db0-48bc-78c9-85ba-f2a3cd78d69e"
    },
    {
      "id": "chg_01a09db0-48bc-7f41-aefa-1fad62988e2d",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 02:12:50.941228+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a09db0-48bc-7f41-aefa-1fad62988e2d"
    },
    {
      "id": "chg_01a09db0-48bd-7678-8083-d21378d89afe",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 02:12:50.941228+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the whole tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a09db0-48bd-7678-8083-d21378d89afe"
    },
    {
      "id": "chg_01a09db0-48be-7c86-ae9b-f85f300adab1",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 02:12:50.941228+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a09db0-48be-7c86-ae9b-f85f300adab1"
    },
    {
      "id": "chg_01a08918-1c8e-7807-acc7-d6021f537609",
      "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 02:14:13.815917+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "HTTPS (fail → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a08918-1c8e-7807-acc7-d6021f537609"
    },
    {
      "id": "chg_01a083f2-8840-7b2d-882a-a94c0ef6ac2d",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 02:15:04.925934+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a083f2-8840-7b2d-882a-a94c0ef6ac2d"
    },
    {
      "id": "chg_01a083f2-8842-74e9-81e0-b2f63e831cb3",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 02:15:04.925934+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a083f2-8842-74e9-81e0-b2f63e831cb3"
    },
    {
      "id": "chg_01a083f2-8842-7c7f-8fac-8adae310b717",
      "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": "3"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 02:15:04.925934+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 3 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-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a083f2-8842-7c7f-8fac-8adae310b717"
    },
    {
      "id": "chg_01a07ece-fdf4-7d67-9c8d-d28d26eb11c9",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 02:18:09.723205+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a07ece-fdf4-7d67-9c8d-d28d26eb11c9"
    },
    {
      "id": "chg_01a07ece-fdf5-7529-b661-4a444d88f593",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 02:18:09.723205+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a07ece-fdf5-7529-b661-4a444d88f593"
    },
    {
      "id": "chg_01a07ece-fdf5-79fb-bd3a-50dbd491abfb",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.03",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 02:18:09.723205+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Stability (0.03 → unverified)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a07ece-fdf5-79fb-bd3a-50dbd491abfb"
    },
    {
      "id": "chg_01a07ece-fdf6-7078-9bba-7b859ce62b63",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 02:18:09.723205+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the whole tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a07ece-fdf6-7078-9bba-7b859ce62b63"
    },
    {
      "id": "chg_01a07ece-fdf7-7668-bd4b-67f317a6dc8c",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 02:18:09.723205+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/uk-co-vacantpropertysecuritycost-site/vacantpropertysecuritycost#chg-chg_01a07ece-fdf7-7668-bd4b-67f317a6dc8c"
    }
  ],
  "days": [
    {
      "date": "2026-11-06",
      "total": 77,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-16",
      "total": 77,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-15",
      "total": 77,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 93,
        "to": 97,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 28,
          "to_days": 29
        },
        "partial": false,
        "compared_to": "2026-10-14",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-14",
      "total": 76,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-06",
      "total": 77,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 4
    },
    {
      "date": "2026-10-04",
      "total": 77,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-10-03",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-28",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}