{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "nickjlamb-studydiff",
  "component": "studydiff-mcp",
  "generated_at": "2026-09-21T03:44:56.952Z",
  "tracking_since": "2026-07-27",
  "counts": {
    "critical": 0,
    "security": 10,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0a875-4935-78d8-bbbf-2f6557e1cab6",
      "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": "2026-09-16",
      "occurred_at": "2026-09-16 04:24:13.646062+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_01a0a875-4935-78d8-bbbf-2f6557e1cab6"
    },
    {
      "id": "chg_01a08469-ba46-7cca-9556-aa32d761871e",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 04:25:16.507166+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_01a08469-ba46-7cca-9556-aa32d761871e"
    },
    {
      "id": "chg_01a05b31-ebde-7e93-89dc-3a5af35c9acb",
      "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 04:19:53.38634+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_01a05b31-ebde-7e93-89dc-3a5af35c9acb"
    },
    {
      "id": "chg_019fdf99-503d-7ce5-9163-d6bc27f5a328",
      "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": "97",
        "assessed": "98",
        "resolved": "97",
        "tree_source": "registry",
        "tree_status": "resolved"
      },
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 04:19:54.438698+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Known CVEs (partial → pass)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_019fdf99-503d-7ce5-9163-d6bc27f5a328"
    },
    {
      "id": "chg_019fc46f-9ee6-75ce-ab18-a207291fbed4",
      "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": "2026-08-02",
      "occurred_at": "2026-08-02 21:44:37.307984+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Stability (Stability not yet verified: not enough scan history yet (needs a 30-day window).)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_019fc46f-9ee6-75ce-ab18-a207291fbed4"
    },
    {
      "id": "chg_019fc46f-9ee1-7358-a284-f420b7f1ed6e",
      "kind": "check.reverified",
      "family": "build-provenance",
      "subject_kind": "check",
      "subject": "build-provenance",
      "subject_child": "",
      "from_code": "provenance.inconclusive",
      "to_code": "provenance.none",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 21:44:37.307984+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Provenance (unverified → fail)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_019fc46f-9ee1-7358-a284-f420b7f1ed6e"
    },
    {
      "id": "chg_019fc46f-9ee5-7b54-93fc-ec4e019ec8e4",
      "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 21:44:37.307984+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Install scripts (unverified → pass)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_019fc46f-9ee5-7b54-93fc-ec4e019ec8e4"
    },
    {
      "id": "chg_019fc46f-9ee6-7148-925c-1a20b6ad0c2d",
      "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": "100",
        "assessed": "97",
        "resolved": "96",
        "unresolved": "4",
        "tree_source": "registry",
        "tree_status": "partial"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 21:44:37.307984+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Known CVEs (unverified → partial)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_019fc46f-9ee6-7148-925c-1a20b6ad0c2d"
    },
    {
      "id": "chg_019fc27c-4108-74cd-ad11-6ef6b4fa220e",
      "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 12:39:10.833293+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Malware scan (unverified → pass)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_019fc27c-4108-74cd-ad11-6ef6b4fa220e"
    },
    {
      "id": "chg_019fb774-a7c4-7aa6-8dad-feb17f765f3e",
      "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": "2026-07-31",
      "occurred_at": "2026-07-31 09:15:03.461791+00",
      "observed_since": "2026-07-30",
      "source": "scan",
      "summary": "Malware scan (pass → unverified)",
      "link": "https://verifymcp.io/servers/nickjlamb-studydiff/studydiff-mcp#chg-chg_019fb774-a7c4-7aa6-8dad-feb17f765f3e"
    }
  ],
  "days": [
    {
      "date": "2026-09-20",
      "total": 84,
      "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": "2026-09-19",
        "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": "2026-09-18",
      "total": 83,
      "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": "2026-09-17",
        "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": "2026-09-17",
      "total": 82,
      "delta": -3,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-16",
      "total": 85,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-15",
      "total": 85,
      "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": "2026-09-14",
        "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": "2026-09-14",
      "total": 84,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-13",
      "total": 84,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-11",
      "total": 83,
      "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": "2026-09-10",
        "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
    }
  ]
}