{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "com-singlefax-mcp",
  "component": "singlefax",
  "generated_at": "2026-09-21T06:50:56.723Z",
  "tracking_since": "2026-09-02",
  "counts": {
    "critical": 0,
    "security": 10,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a06fbd-ab65-7564-a54e-26a5fd95698f",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.03",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "2",
        "added": "0",
        "breaks": "0",
        "removed": "8",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 04:04:56.157865+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Stability (0.03 → fail)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06fbd-ab65-7564-a54e-26a5fd95698f"
    },
    {
      "id": "chg_01a06fbd-ab68-7e23-b601-e91efe4b21f0",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 04:04:56.157865+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06fbd-ab68-7e23-b601-e91efe4b21f0"
    },
    {
      "id": "chg_01a06fbd-ab69-757f-85ac-6d5871bd06a7",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.rfc9728",
      "from_value": "pass",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 04:04:56.157865+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Authorization (The endpoint enforces authorisation, advertised via RFC 9728 protected-resource metadata.)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06fbd-ab69-757f-85ac-6d5871bd06a7"
    },
    {
      "id": "chg_01a06a97-65a6-74dc-b721-6c37eab852dc",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.challenge_only_invoke",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 04:05:01.646958+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06a97-65a6-74dc-b721-6c37eab852dc"
    },
    {
      "id": "chg_01a06a97-65a9-7210-8fec-cffde5dcb18b",
      "kind": "check.appeared",
      "family": "auth-registration",
      "subject_kind": "check",
      "subject": "auth-registration",
      "subject_child": "",
      "from_code": null,
      "to_code": "auth.registration_dcr_only",
      "from_value": null,
      "to_value": "partial",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 04:05:01.646958+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "First check of Authorization (partial)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06a97-65a9-7210-8fec-cffde5dcb18b"
    },
    {
      "id": "chg_01a06612-f1c3-7e17-a4de-d678e4967754",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 07:01:52.581169+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06612-f1c3-7e17-a4de-d678e4967754"
    },
    {
      "id": "chg_01a06571-51f2-75cb-9b98-490e878dd013",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:05:20.42088+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06571-51f2-75cb-9b98-490e878dd013"
    },
    {
      "id": "chg_01a06571-51f2-7ae2-893e-8dd08677a1e4",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.auth_gated",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:05:20.42088+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06571-51f2-7ae2-893e-8dd08677a1e4"
    },
    {
      "id": "chg_01a06571-51f3-7042-8fba-f11baf29d365",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.challenge_only",
      "to_code": "auth.challenge_only_invoke",
      "from_value": "fail",
      "to_value": "fail",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:05:20.42088+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Authorization (Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token.)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06571-51f3-7042-8fba-f11baf29d365"
    },
    {
      "id": "chg_01a06571-51f3-75f0-91cf-8ad21d4f562d",
      "kind": "check.appeared",
      "family": "tool-safety-manipulation",
      "subject_kind": "check",
      "subject": "tool-safety-manipulation",
      "subject_child": "",
      "from_code": null,
      "to_code": "toolsafety.manipulation_clean",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "units": "6",
        "judged": "6"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:05:20.42088+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/com-singlefax-mcp/singlefax#chg-chg_01a06571-51f3-75f0-91cf-8ad21d4f562d"
    }
  ],
  "days": [
    {
      "date": "2026-09-21",
      "total": 63,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-20",
      "total": 64,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-19",
      "total": 64,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-18",
      "total": 64,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-17",
      "total": 64,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-16",
      "total": 64,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-15",
      "total": 64,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-14",
      "total": 64,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}