{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "nexus-mcp-infra-erc8004-agent-liveness",
  "component": "erc8004-agent-liveness-325572559480",
  "generated_at": "2026-09-21T04:34:58.881Z",
  "tracking_since": "2026-08-23",
  "counts": {
    "critical": 0,
    "security": 8,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a083ee-05ae-74b0-ba9f-7089296ee180",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.53",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 02:10:09.3831+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (0.53 → unverified)",
      "link": "https://verifymcp.io/servers/nexus-mcp-infra-erc8004-agent-liveness/erc8004-agent-liveness-325572559480#chg-chg_01a083ee-05ae-74b0-ba9f-7089296ee180"
    },
    {
      "id": "chg_01a083ee-05af-758f-9c3f-b84fe63ebde0",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 02:10:09.3831+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/nexus-mcp-infra-erc8004-agent-liveness/erc8004-agent-liveness-325572559480#chg-chg_01a083ee-05af-758f-9c3f-b84fe63ebde0"
    },
    {
      "id": "chg_01a083ee-05af-7cf2-a6c8-01fbf299fe92",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.challenge_only",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 02:10:09.3831+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/nexus-mcp-infra-erc8004-agent-liveness/erc8004-agent-liveness-325572559480#chg-chg_01a083ee-05af-7cf2-a6c8-01fbf299fe92"
    },
    {
      "id": "chg_01a083ee-05b0-7504-8b15-a558903df99e",
      "kind": "check.unverifiable",
      "family": "https",
      "subject_kind": "check",
      "subject": "https",
      "subject_child": "",
      "from_code": "https.enforced",
      "to_code": "https.inconclusive",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "plaintext_status",
        "status": "403"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 02:10:09.3831+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "HTTPS (pass → unverified)",
      "link": "https://verifymcp.io/servers/nexus-mcp-infra-erc8004-agent-liveness/erc8004-agent-liveness-325572559480#chg-chg_01a083ee-05b0-7504-8b15-a558903df99e"
    },
    {
      "id": "chg_01a083ee-05b0-7e2a-bf9d-cec38c0acc2f",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 02:10:09.3831+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/nexus-mcp-infra-erc8004-agent-liveness/erc8004-agent-liveness-325572559480#chg-chg_01a083ee-05b0-7e2a-bf9d-cec38c0acc2f"
    },
    {
      "id": "chg_01a083ee-05b2-72e6-834b-ca5138e5e7eb",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "verified"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 02:10:09.3831+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → behind authorisation)",
      "link": "https://verifymcp.io/servers/nexus-mcp-infra-erc8004-agent-liveness/erc8004-agent-liveness-325572559480#chg-chg_01a083ee-05b2-72e6-834b-ca5138e5e7eb"
    },
    {
      "id": "chg_01a06f52-e09f-7f20-adcd-ead19dac1a48",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "verify_registered_agent",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "verify_registered_agent"
      },
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 02:08:17.45795+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “verify_registered_agent” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/nexus-mcp-infra-erc8004-agent-liveness/erc8004-agent-liveness-325572559480#chg-chg_01a06f52-e09f-7f20-adcd-ead19dac1a48"
    },
    {
      "id": "chg_01a06a2c-1c9c-7532-837a-0de211d6056a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "verify_registered_agent",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "verify_registered_agent"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 02:07:50.893053+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “verify_registered_agent” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/nexus-mcp-infra-erc8004-agent-liveness/erc8004-agent-liveness-325572559480#chg-chg_01a06a2c-1c9c-7532-837a-0de211d6056a"
    }
  ],
  "days": [
    {
      "date": "2026-09-09",
      "total": 28,
      "delta": -40,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 9
    },
    {
      "date": "2026-09-07",
      "total": 68,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 47,
        "to": 50,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 14,
          "to_days": 15
        },
        "partial": false,
        "compared_to": "2026-09-06",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-05",
      "total": 67,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-04",
      "total": 66,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-03",
      "total": 66,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 33,
        "to": 37,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 10,
          "to_days": 11
        },
        "partial": false,
        "compared_to": "2026-09-02",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-01",
      "total": 65,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 27,
        "to": 30,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 8,
          "to_days": 9
        },
        "partial": false,
        "compared_to": "2026-08-31",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-08-30",
      "total": 64,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 20,
        "to": 23,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 6,
          "to_days": 7
        },
        "partial": false,
        "compared_to": "2026-08-29",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-08-28",
      "total": 63,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 13,
        "to": 17,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 4,
          "to_days": 5
        },
        "partial": false,
        "compared_to": "2026-08-27",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    }
  ]
}