{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "org-daxfoundation-signal-delta-signal",
  "component": "signal",
  "generated_at": "2026-11-05T17:28:52.359Z",
  "tracking_since": "2026-10-28",
  "counts": {
    "critical": 0,
    "security": 9,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a1aa2c-43d1-70a9-9e93-7d1bc7b9baae",
      "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": "2026-11-05",
      "occurred_at": "2026-11-05 05:26:30.076977+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Stability (0.23 → unverified)",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a1aa2c-43d1-70a9-9e93-7d1bc7b9baae"
    },
    {
      "id": "chg_01a1aa2c-43d1-7a28-8a08-4844815547e3",
      "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": "503",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-11-05",
      "occurred_at": "2026-11-05 05:26:30.076977+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a1aa2c-43d1-7a28-8a08-4844815547e3"
    },
    {
      "id": "chg_01a1aa2c-43d2-7029-92d5-b848ac39eafe",
      "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": "2026-11-05",
      "occurred_at": "2026-11-05 05:26:30.076977+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a1aa2c-43d2-7029-92d5-b848ac39eafe"
    },
    {
      "id": "chg_01a1aa2c-43d2-7a6d-a67f-bcc46a348198",
      "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": "2026-11-05",
      "occurred_at": "2026-11-05 05:26:30.076977+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Authorization (Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.)",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a1aa2c-43d2-7a6d-a67f-bcc46a348198"
    },
    {
      "id": "chg_01a1aa2c-43d4-708f-bc96-f7d688689018",
      "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": "2026-11-05",
      "occurred_at": "2026-11-05 05:26:30.076977+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a1aa2c-43d4-708f-bc96-f7d688689018"
    },
    {
      "id": "chg_01a19fdb-241d-7f11-8ec9-cfc454fd658c",
      "kind": "check.reverified",
      "family": "tool-safety-manipulation",
      "subject_kind": "check",
      "subject": "tool-safety-manipulation",
      "subject_child": "",
      "from_code": "toolsafety.manipulation_unjudged",
      "to_code": "toolsafety.manipulation_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "units": "6",
        "judged": "6"
      },
      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 05:21:41.167999+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Judged manipulation (unverified → pass)",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a19fdb-241d-7f11-8ec9-cfc454fd658c"
    },
    {
      "id": "chg_01a19ab2-274a-7eb0-ab0e-8d2244a86e1a",
      "kind": "check.unverifiable",
      "family": "tool-safety-manipulation",
      "subject_kind": "check",
      "subject": "tool-safety-manipulation",
      "subject_child": "",
      "from_code": "toolsafety.manipulation_clean",
      "to_code": "toolsafety.manipulation_unjudged",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "units": "6",
        "judged": "3",
        "reason": "partially_judged"
      },
      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 05:18:49.146763+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Judged manipulation (pass → unverified)",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a19ab2-274a-7eb0-ab0e-8d2244a86e1a"
    },
    {
      "id": "chg_01a19ab2-274d-725b-ad31-30a654a26710",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "describe_engine",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "describe_engine"
      },
      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 05:18:49.146763+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Tool “describe_engine” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a19ab2-274d-725b-ad31-30a654a26710"
    },
    {
      "id": "chg_01a18b40-c39f-7109-8cf1-5a7b39a3eb7e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "decode_audio",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "decode_audio"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 05:20:39.587598+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “decode_audio” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/org-daxfoundation-signal-delta-signal/signal#chg-chg_01a18b40-c39f-7109-8cf1-5a7b39a3eb7e"
    }
  ],
  "days": [
    {
      "date": "2026-11-05",
      "total": 20,
      "delta": -45,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-11-04",
      "total": 65,
      "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": "2026-11-03",
        "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": "2026-11-03",
      "total": 64,
      "delta": 6,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-11-02",
      "total": 58,
      "delta": -4,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-11-01",
      "total": 62,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 10,
        "to": 13,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 3,
          "to_days": 4
        },
        "partial": false,
        "compared_to": "2026-10-31",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-30",
      "total": 61,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-10-29",
      "total": 60,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-28",
      "total": 60,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 0
    }
  ]
}