{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "build-arca-mcp-arca-mcp-server",
  "component": "mcp",
  "generated_at": "2026-10-03T07:41:12.603Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 12,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_019fd61f-fd93-7990-a30d-caada4541a6f",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.unreachable",
      "to_code": "transport.auth_gated",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 08:10:48.580607+00",
      "observed_since": "2026-08-05",
      "source": "scan",
      "summary": "Transport (fail → unverified)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fd61f-fd93-7990-a30d-caada4541a6f"
    },
    {
      "id": "chg_019fd61f-fd94-79ac-995f-b8ed32b9e733",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.rfc9728",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 08:10:48.580607+00",
      "observed_since": "2026-08-05",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fd61f-fd94-79ac-995f-b8ed32b9e733"
    },
    {
      "id": "chg_019fd61f-fd94-7d59-b7ce-e33b7692d0b1",
      "kind": "check.reverified",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.inconclusive",
      "to_code": "headers.hsts_present",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 08:10:48.580607+00",
      "observed_since": "2026-08-05",
      "source": "scan",
      "summary": "HSTS header (unverified → pass)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fd61f-fd94-7d59-b7ce-e33b7692d0b1"
    },
    {
      "id": "chg_019fd0fa-ceb8-7c4b-8ff4-0bec5fd3824a",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.unreachable",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 08:12:05.622029+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Transport (unverified → fail)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fd0fa-ceb8-7c4b-8ff4-0bec5fd3824a"
    },
    {
      "id": "chg_019fd0fa-ceb9-7214-ac44-c94b029b3239",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728",
      "to_code": "auth.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 08:12:05.622029+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fd0fa-ceb9-7214-ac44-c94b029b3239"
    },
    {
      "id": "chg_019fd0fa-ceb9-7680-b179-8986d9580bc8",
      "kind": "check.unverifiable",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.hsts_present",
      "to_code": "headers.inconclusive",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 08:12:05.622029+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "HSTS header (pass → unverified)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fd0fa-ceb9-7680-b179-8986d9580bc8"
    },
    {
      "id": "chg_019fb379-69b7-736c-9c47-fe49d3392ec7",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.unreachable",
      "to_code": "transport.auth_gated",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 14:41:46.410676+00",
      "observed_since": "2026-07-29",
      "source": "scan",
      "summary": "Transport (fail → unverified)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fb379-69b7-736c-9c47-fe49d3392ec7"
    },
    {
      "id": "chg_019fb379-69b7-799a-9af6-d4c9e356f195",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.rfc9728",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 14:41:46.410676+00",
      "observed_since": "2026-07-29",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fb379-69b7-799a-9af6-d4c9e356f195"
    },
    {
      "id": "chg_019fb379-69b7-7ea0-be9c-f7328d6167b9",
      "kind": "check.reverified",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.inconclusive",
      "to_code": "headers.hsts_present",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 14:41:46.410676+00",
      "observed_since": "2026-07-29",
      "source": "scan",
      "summary": "HSTS header (unverified → pass)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fb379-69b7-7ea0-be9c-f7328d6167b9"
    },
    {
      "id": "chg_019fa916-6740-787c-a7ab-4099e628b322",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.unreachable",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 14:17:25.557572+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Transport (unverified → fail)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fa916-6740-787c-a7ab-4099e628b322"
    },
    {
      "id": "chg_019fa916-6740-7f04-a39f-dc141d396445",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728",
      "to_code": "auth.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 14:17:25.557572+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fa916-6740-7f04-a39f-dc141d396445"
    },
    {
      "id": "chg_019fa916-6741-759e-9769-682bed4fc8aa",
      "kind": "check.unverifiable",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.hsts_present",
      "to_code": "headers.inconclusive",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 14:17:25.557572+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "HSTS header (pass → unverified)",
      "link": "https://verifymcp.io/servers/build-arca-mcp-arca-mcp-server/mcp#chg-chg_019fa916-6741-759e-9769-682bed4fc8aa"
    }
  ],
  "days": [
    {
      "date": "2026-09-28",
      "total": 38,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-25",
      "total": 38,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-26",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-11",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-06",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-08-05",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-07-31",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-07-30",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    }
  ]
}