{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "xyzzylabs-tc39-mcp",
  "component": "tc39-mcp-2",
  "generated_at": "2026-09-20T18:28:11.393Z",
  "tracking_since": "2026-07-27",
  "counts": {
    "critical": 0,
    "security": 22,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0bc78-070b-7926-895d-7e0282325f69",
      "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": "2026-09-20",
      "occurred_at": "2026-09-20 01:39:37.805237+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_01a0bc78-070b-7926-895d-7e0282325f69"
    },
    {
      "id": "chg_01a0985d-b602-7cf3-aaec-8599d7aa8b3b",
      "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": "2026-09-13",
      "occurred_at": "2026-09-13 01:24:33.347356+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_01a0985d-b602-7cf3-aaec-8599d7aa8b3b"
    },
    {
      "id": "chg_01a088ea-bf45-7b34-9629-144f71899066",
      "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": "21",
        "judged": "21"
      },
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 01:24:40.774483+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Judged manipulation (unverified → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_01a088ea-bf45-7b34-9629-144f71899066"
    },
    {
      "id": "chg_01a083c2-de7f-7302-8811-b296c3c3b35e",
      "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": "21",
        "judged": "20",
        "reason": "partially_judged"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 01:23:01.29873+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Judged manipulation (pass → unverified)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_01a083c2-de7f-7302-8811-b296c3c3b35e"
    },
    {
      "id": "chg_01a083c2-de80-761e-a935-d771e51b5d1d",
      "kind": "check.reverified",
      "family": "supplychain-malware",
      "subject_kind": "check",
      "subject": "supplychain-malware",
      "subject_child": "",
      "from_code": "supplychain.malware_inconclusive",
      "to_code": "supplychain.malware_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 01:23:01.29873+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Malware scan (unverified → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_01a083c2-de80-761e-a935-d771e51b5d1d"
    },
    {
      "id": "chg_01a0814a-280d-7830-b52b-a70f10fe9dbc",
      "kind": "check.unverifiable",
      "family": "supplychain-malware",
      "subject_kind": "check",
      "subject": "supplychain-malware",
      "subject_child": "",
      "from_code": "supplychain.malware_clean",
      "to_code": "supplychain.malware_inconclusive",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "vendor_not_cached"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 13:51:55.676626+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Malware scan (pass → unverified)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_01a0814a-280d-7830-b52b-a70f10fe9dbc"
    },
    {
      "id": "chg_01a0745c-1937-71bc-a20c-f4ca16238cf3",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 01:36:27.889504+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_01a0745c-1937-71bc-a20c-f4ca16238cf3"
    },
    {
      "id": "chg_01a05a8c-2104-778e-8e9c-c9f2fb2a7acc",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 01:18:48.039744+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_01a05a8c-2104-778e-8e9c-c9f2fb2a7acc"
    },
    {
      "id": "chg_019fda38-7bc8-74a1-8f07-1ff67780bcaf",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.sandbox_pending",
      "from_value": "0.33",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "version_superseded"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 03:16:02.571118+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Stability (0.33 → unverified)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fda38-7bc8-74a1-8f07-1ff67780bcaf"
    },
    {
      "id": "chg_019fd9ca-7485-7a96-bf4a-2f697ff36f4b",
      "kind": "check.verdict",
      "family": "vulnerabilities",
      "subject_kind": "check",
      "subject": "vulnerabilities",
      "subject_child": "",
      "from_code": "cve.tree_partial",
      "to_code": "cve.none",
      "from_value": "partial",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "seen": "95",
        "assessed": "96",
        "resolved": "95",
        "tree_source": "registry",
        "tree_status": "resolved"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 01:15:51.788714+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Known CVEs (partial → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fd9ca-7485-7a96-bf4a-2f697ff36f4b"
    },
    {
      "id": "chg_019fcf7f-1f63-7e08-992e-eafb2db80978",
      "kind": "check.verdict",
      "family": "vulnerabilities",
      "subject_kind": "check",
      "subject": "vulnerabilities",
      "subject_child": "",
      "from_code": "cve.transitive",
      "to_code": "cve.tree_partial",
      "from_value": "fail",
      "to_value": "partial",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "seen": "98",
        "assessed": "95",
        "resolved": "94",
        "unresolved": "4",
        "tree_source": "registry",
        "tree_status": "partial"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 01:17:22.574425+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Known CVEs (fail → partial)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fcf7f-1f63-7e08-992e-eafb2db80978"
    },
    {
      "id": "chg_019fcf7f-1f62-7c5f-82f9-e9479687838b",
      "kind": "advisory.resolved",
      "family": "vulnerabilities",
      "subject_kind": "advisory",
      "subject": "CVE-2026-69207",
      "subject_child": "",
      "from_code": "cve.transitive",
      "to_code": "cve.tree_partial",
      "from_value": "medium",
      "to_value": null,
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "id": "CVE-2026-69207"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 01:17:22.574425+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "CVE-2026-69207 no longer affects this package",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fcf7f-1f62-7c5f-82f9-e9479687838b"
    },
    {
      "id": "chg_019fca5b-21e5-7c2a-9beb-89be631c8fdc",
      "kind": "check.verdict",
      "family": "vulnerabilities",
      "subject_kind": "check",
      "subject": "vulnerabilities",
      "subject_child": "",
      "from_code": "cve.tree_partial",
      "to_code": "cve.transitive",
      "from_value": "partial",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "path": "@modelcontextprotocol/sdk > hono",
        "refs": "[\"CVE-2026-69207\"]",
        "seen": "98",
        "package": "hono",
        "version": "4.12.33",
        "assessed": "95",
        "resolved": "94",
        "severity": "medium",
        "transitive": "1",
        "unresolved": "4",
        "vulnerable": "[{\"name\":\"hono\",\"version\":\"4.12.33\",\"depth\":2,\"path\":[\"@modelcontextprotocol/sdk\",\"hono\"],\"refs\":[\"CVE-2026-69207\"]}]",
        "tree_source": "registry",
        "tree_status": "partial"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 01:19:57.89889+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Known CVEs (partial → fail)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fca5b-21e5-7c2a-9beb-89be631c8fdc"
    },
    {
      "id": "chg_019fca5b-21e5-70e5-b09a-af6f07644a05",
      "kind": "advisory.identified",
      "family": "vulnerabilities",
      "subject_kind": "advisory",
      "subject": "CVE-2026-69207",
      "subject_child": "",
      "from_code": null,
      "to_code": "cve.transitive",
      "from_value": null,
      "to_value": "medium",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "id": "CVE-2026-69207",
        "severity": "medium"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 01:19:57.89889+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "CVE-2026-69207 affects this package (medium)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fca5b-21e5-70e5-b09a-af6f07644a05"
    },
    {
      "id": "chg_019fc49a-d478-79f9-b135-0798d94707ac",
      "kind": "check.reverified",
      "family": "install-scripts",
      "subject_kind": "check",
      "subject": "install-scripts",
      "subject_child": "",
      "from_code": "installscript.inconclusive",
      "to_code": "installscript.none",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "tier": "none"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:31:49.091382+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Install scripts (unverified → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fc49a-d478-79f9-b135-0798d94707ac"
    },
    {
      "id": "chg_019fc49a-d478-7f41-8df7-90af0b9ff28d",
      "kind": "check.reverified",
      "family": "build-provenance",
      "subject_kind": "check",
      "subject": "build-provenance",
      "subject_child": "",
      "from_code": "provenance.inconclusive",
      "to_code": "provenance.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "repo": "xyzzylabs/tc39-mcp"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:31:49.091382+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Provenance (unverified → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fc49a-d478-7f41-8df7-90af0b9ff28d"
    },
    {
      "id": "chg_019fc49a-d479-7591-a239-064be529e406",
      "kind": "check.reverified",
      "family": "vulnerabilities",
      "subject_kind": "check",
      "subject": "vulnerabilities",
      "subject_child": "",
      "from_code": "cve.inconclusive",
      "to_code": "cve.tree_partial",
      "from_value": "unverified",
      "to_value": "partial",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "seen": "98",
        "assessed": "95",
        "resolved": "94",
        "unresolved": "4",
        "tree_source": "registry",
        "tree_status": "partial"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:31:49.091382+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Known CVEs (unverified → partial)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fc49a-d479-7591-a239-064be529e406"
    },
    {
      "id": "chg_019fc49a-d479-7a28-8209-432d517973a6",
      "kind": "provenance.repo_changed",
      "family": "build-provenance",
      "subject_kind": "package",
      "subject": "repo",
      "subject_child": "",
      "from_code": "provenance.inconclusive",
      "to_code": "provenance.verified",
      "from_value": null,
      "to_value": "xyzzylabs/tc39-mcp",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "to": "xyzzylabs/tc39-mcp",
        "from": ""
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:31:49.091382+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "The attested source repository moved (xyzzylabs/tc39-mcp)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fc49a-d479-7a28-8209-432d517973a6"
    },
    {
      "id": "chg_019fc1cc-dc08-7327-b4da-7e2eb5d2b2fd",
      "kind": "check.reverified",
      "family": "supplychain-malware",
      "subject_kind": "check",
      "subject": "supplychain-malware",
      "subject_child": "",
      "from_code": "supplychain.malware_inconclusive",
      "to_code": "supplychain.malware_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 09:27:36.183894+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Malware scan (unverified → pass)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fc1cc-dc08-7327-b4da-7e2eb5d2b2fd"
    },
    {
      "id": "chg_019fc1cc-dc09-717e-ae30-90b40ef9c39a",
      "kind": "check.reason",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.sandbox_pending",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 09:27:36.183894+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Stability (Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fc1cc-dc09-717e-ae30-90b40ef9c39a"
    },
    {
      "id": "chg_019fbcda-a970-7a38-9155-e8998e66bdd2",
      "kind": "check.reason",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.sandbox_pending",
      "to_code": "stability.insufficient_history",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 10:24:34.660105+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Stability (Stability not yet verified: not enough scan history yet (needs a 30-day window).)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fbcda-a970-7a38-9155-e8998e66bdd2"
    },
    {
      "id": "chg_019fb18b-2c05-7340-91ed-8ef8f7314697",
      "kind": "check.unverifiable",
      "family": "supplychain-malware",
      "subject_kind": "check",
      "subject": "supplychain-malware",
      "subject_child": "",
      "from_code": "supplychain.malware_clean",
      "to_code": "supplychain.malware_inconclusive",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 05:41:55.832036+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Malware scan (pass → unverified)",
      "link": "https://verifymcp.io/servers/xyzzylabs-tc39-mcp/tc39-mcp-2#chg-chg_019fb18b-2c05-7340-91ed-8ef8f7314697"
    }
  ],
  "days": [
    {
      "date": "2026-09-20",
      "total": 97,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-19",
      "total": 97,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 93,
        "to": 97,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 28,
          "to_days": 29
        },
        "partial": false,
        "compared_to": "2026-09-18",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-17",
      "total": 96,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 87,
        "to": 90,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 26,
          "to_days": 27
        },
        "partial": false,
        "compared_to": "2026-09-16",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-15",
      "total": 95,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 80,
        "to": 83,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 24,
          "to_days": 25
        },
        "partial": false,
        "compared_to": "2026-09-14",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-14",
      "total": 94,
      "delta": -3,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-13",
      "total": 97,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-12",
      "total": 97,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 93,
        "to": 97,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 28,
          "to_days": 29
        },
        "partial": false,
        "compared_to": "2026-09-11",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-10",
      "total": 96,
      "delta": 8,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    }
  ]
}