{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "ai-arclan-registry",
  "component": "arclan",
  "generated_at": "2026-09-28T05:59:22.688Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 18,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0e0d1-4935-77ed-a8a0-c7db924a3c1d",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.unreachable",
      "to_code": "transport.verified",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-27",
      "occurred_at": "2026-09-27 03:03:27.170086+00",
      "observed_since": "2026-09-26",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0e0d1-4935-77ed-a8a0-c7db924a3c1d"
    },
    {
      "id": "chg_01a0e0d1-4936-7873-be09-4d89bc1df190",
      "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": "2026-09-27",
      "occurred_at": "2026-09-27 03:03:27.170086+00",
      "observed_since": "2026-09-26",
      "source": "scan",
      "summary": "HSTS header (unverified → pass)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0e0d1-4936-7873-be09-4d89bc1df190"
    },
    {
      "id": "chg_01a0e0d1-4936-7d48-8862-528cac5b4b3b",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "4"
      },
      "occurred_on": "2026-09-27",
      "occurred_at": "2026-09-27 03:03:27.170086+00",
      "observed_since": "2026-09-26",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 4 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0e0d1-4936-7d48-8862-528cac5b4b3b"
    },
    {
      "id": "chg_01a0dbab-d5a8-76d8-8ba6-1022bff80254",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.unreachable",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-26",
      "occurred_at": "2026-09-26 03:04:26.702123+00",
      "observed_since": "2026-09-25",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0dbab-d5a8-76d8-8ba6-1022bff80254"
    },
    {
      "id": "chg_01a0d15f-766a-7bf1-8e91-5f130dc659af",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.unreachable",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 03:04:49.382571+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0d15f-766a-7bf1-8e91-5f130dc659af"
    },
    {
      "id": "chg_01a0d15f-766b-7c84-b1aa-48e674db5fba",
      "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": "2026-09-24",
      "occurred_at": "2026-09-24 03:04:49.382571+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "HSTS header (pass → unverified)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0d15f-766b-7c84-b1aa-48e674db5fba"
    },
    {
      "id": "chg_01a0d15f-766c-73e6-b1b2-cc85404a4ad9",
      "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": "2026-09-24",
      "occurred_at": "2026-09-24 03:04:49.382571+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Authorization (Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0d15f-766c-73e6-b1b2-cc85404a4ad9"
    },
    {
      "id": "chg_01a036de-4d5c-7b04-8c41-67e68a160c60",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 03:02:13.503549+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a036de-4d5c-7b04-8c41-67e68a160c60"
    },
    {
      "id": "chg_01a0035e-d931-71e4-afd2-32ac20a2d3f2",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.unreachable",
      "to_code": "transport.verified",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-15",
      "occurred_at": "2026-08-15 03:02:22.727615+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0035e-d931-71e4-afd2-32ac20a2d3f2"
    },
    {
      "id": "chg_01a0035e-d932-71f9-b550-b828872d35ae",
      "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": "2026-08-15",
      "occurred_at": "2026-08-15 03:02:22.727615+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "HSTS header (unverified → pass)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0035e-d932-71f9-b550-b828872d35ae"
    },
    {
      "id": "chg_01a0035e-d932-7915-8060-521a422371d9",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "4"
      },
      "occurred_on": "2026-08-15",
      "occurred_at": "2026-08-15 03:02:22.727615+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 4 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_01a0035e-d932-7915-8060-521a422371d9"
    },
    {
      "id": "chg_019ff912-9e60-75a4-8314-edb57aca889e",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.unreachable",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-13",
      "occurred_at": "2026-08-13 03:02:54.755335+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_019ff912-9e60-75a4-8314-edb57aca889e"
    },
    {
      "id": "chg_019ff912-9e61-7aff-9932-a1af081640e4",
      "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": "2026-08-13",
      "occurred_at": "2026-08-13 03:02:54.755335+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "HSTS header (pass → unverified)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_019ff912-9e61-7aff-9932-a1af081640e4"
    },
    {
      "id": "chg_019ff912-9e62-7947-9d09-86e7dc26c7ef",
      "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": "2026-08-13",
      "occurred_at": "2026-08-13 03:02:54.755335+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Authorization (Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_019ff912-9e62-7947-9d09-86e7dc26c7ef"
    },
    {
      "id": "chg_019fda2c-3d8b-7647-9cfe-fc49a1af4929",
      "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": "2026-08-07",
      "occurred_at": "2026-08-07 03:02:40.217069+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "HSTS header (unverified → pass)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_019fda2c-3d8b-7647-9cfe-fc49a1af4929"
    },
    {
      "id": "chg_019fda2c-3d8c-7c86-ac18-52d309fae7ff",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "4"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 03:02:40.217069+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 4 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_019fda2c-3d8c-7c86-ac18-52d309fae7ff"
    },
    {
      "id": "chg_019fd505-712f-7bfb-97df-db435058638e",
      "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": "2026-08-06",
      "occurred_at": "2026-08-06 03:02:11.450481+00",
      "observed_since": "2026-08-05",
      "source": "scan",
      "summary": "HSTS header (pass → unverified)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_019fd505-712f-7bfb-97df-db435058638e"
    },
    {
      "id": "chg_019fd505-7131-7cee-80a1-c300e1c297e8",
      "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": "2026-08-06",
      "occurred_at": "2026-08-06 03:02:11.450481+00",
      "observed_since": "2026-08-05",
      "source": "scan",
      "summary": "Authorization (Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.)",
      "link": "https://verifymcp.io/servers/ai-arclan-registry/arclan#chg-chg_019fd505-7131-7cee-80a1-c300e1c297e8"
    }
  ],
  "days": [
    {
      "date": "2026-09-28",
      "total": 71,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-27",
      "total": 71,
      "delta": 12,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-09-26",
      "total": 59,
      "delta": -10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-25",
      "total": 69,
      "delta": 10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-24",
      "total": 59,
      "delta": -12,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-08-26",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-25",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-15",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    }
  ]
}