{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "co-respawnmedia-signal-respawn-signal",
  "component": "signal",
  "generated_at": "2026-09-20T21:11:40.732Z",
  "tracking_since": "2026-09-02",
  "counts": {
    "critical": 0,
    "security": 8,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0ae70-d225-7269-86fd-3f6e5e5934e2",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.http_error",
      "to_code": "transport.auth_gated",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 08:17:04.26533+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Transport (fail → unverified)",
      "link": "https://verifymcp.io/servers/co-respawnmedia-signal-respawn-signal/signal#chg-chg_01a0ae70-d225-7269-86fd-3f6e5e5934e2"
    },
    {
      "id": "chg_01a0ae70-d226-72b2-b737-f64a82c65b89",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.rfc9728",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 08:17:04.26533+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/co-respawnmedia-signal-respawn-signal/signal#chg-chg_01a0ae70-d226-72b2-b737-f64a82c65b89"
    },
    {
      "id": "chg_01a0ae70-d226-76f6-8c20-52cd0498c097",
      "kind": "check.verdict",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.hsts_absent",
      "to_code": "headers.hsts_present",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 08:17:04.26533+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "HSTS header (fail → pass)",
      "link": "https://verifymcp.io/servers/co-respawnmedia-signal-respawn-signal/signal#chg-chg_01a0ae70-d226-76f6-8c20-52cd0498c097"
    },
    {
      "id": "chg_01a0ae70-d228-752d-adb8-46bcbddfa361",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.auth_gated",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 08:17:04.26533+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Tool safety (Tool safety blocked by authentication: the endpoint requires auth we don't have to read its tools.)",
      "link": "https://verifymcp.io/servers/co-respawnmedia-signal-respawn-signal/signal#chg-chg_01a0ae70-d228-752d-adb8-46bcbddfa361"
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    {
      "id": "chg_01a0a94a-247f-77d5-9d62-c19a8a4f2b7e",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.http_error",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "status": "404",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 08:16:43.313519+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Transport (unverified → fail)",
      "link": "https://verifymcp.io/servers/co-respawnmedia-signal-respawn-signal/signal#chg-chg_01a0a94a-247f-77d5-9d62-c19a8a4f2b7e"
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    {
      "id": "chg_01a0a94a-2480-7e90-bc8d-ef142a4b4f8b",
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      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728",
      "to_code": "auth.none_unlisted",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 08:16:43.313519+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/co-respawnmedia-signal-respawn-signal/signal#chg-chg_01a0a94a-2480-7e90-bc8d-ef142a4b4f8b"
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    {
      "id": "chg_01a0a94a-2484-726f-b6cc-9d4538f68fa8",
      "kind": "check.verdict",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
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      "to_code": "headers.hsts_absent",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 08:16:43.313519+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "HSTS header (pass → fail)",
      "link": "https://verifymcp.io/servers/co-respawnmedia-signal-respawn-signal/signal#chg-chg_01a0a94a-2484-726f-b6cc-9d4538f68fa8"
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    {
      "id": "chg_01a0a94a-2493-7ac2-9ca1-a36d79ccb3e6",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.auth_gated",
      "to_code": "toolsafety.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 08:16:43.313519+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Tool safety (Tool safety not yet verified: we couldn't read the endpoint's tools.)",
      "link": "https://verifymcp.io/servers/co-respawnmedia-signal-respawn-signal/signal#chg-chg_01a0a94a-2493-7ac2-9ca1-a36d79ccb3e6"
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      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-09-16",
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      "delta": -16,
      "tracked": true,
      "explained": true,
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      "date": "2026-09-02",
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      "attribution": null,
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}