{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "slettmayer-calc-mcp-server",
  "component": "calc-mcp-server",
  "generated_at": "2026-09-21T06:03:34.973Z",
  "tracking_since": "2026-07-30",
  "counts": {
    "critical": 0,
    "security": 15,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0b8f4-3183-7e13-be4a-b29c234ac952",
      "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": "2026-09-19",
      "occurred_at": "2026-09-19 09:16:46.30227+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a0b8f4-3183-7e13-be4a-b29c234ac952"
    },
    {
      "id": "chg_01a0b163-05d2-795d-9c7a-4b85bfe9137f",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.sandbox_pending",
      "from_value": "0.90",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "version_superseded"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 22:00:51.439925+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Stability (0.90 → unverified)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a0b163-05d2-795d-9c7a-4b85bfe9137f"
    },
    {
      "id": "chg_01a0b163-05d3-7eaa-8621-0cd32e1bdbbd",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.sandbox_pending",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "version_superseded"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 22:00:51.439925+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a0b163-05d3-7eaa-8621-0cd32e1bdbbd"
    },
    {
      "id": "chg_01a09a10-78bc-7754-bd2a-5bacd9517ac1",
      "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 09:19:25.552838+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a09a10-78bc-7754-bd2a-5bacd9517ac1"
    },
    {
      "id": "chg_01a087c2-84f6-7abd-b29b-dfa897bc60e6",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.sandbox_pending",
      "from_value": "0.83",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "version_superseded"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 20:01:07.231912+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (0.83 → unverified)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a087c2-84f6-7abd-b29b-dfa897bc60e6"
    },
    {
      "id": "chg_01a087c2-84f9-7a3e-a1a5-2069b4bc973e",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.sandbox_pending",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "version_superseded"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 20:01:07.231912+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a087c2-84f9-7a3e-a1a5-2069b4bc973e"
    },
    {
      "id": "chg_01a07b23-6688-765d-ac8f-5ce6e3717261",
      "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": "2026-09-07",
      "occurred_at": "2026-09-07 09:11:52.343698+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a07b23-6688-765d-ac8f-5ce6e3717261"
    },
    {
      "id": "chg_01a06baf-74a9-7313-9131-352918b40a3b",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 09:10:55.714671+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a06baf-74a9-7313-9131-352918b40a3b"
    },
    {
      "id": "chg_01a04cc9-65ac-71f9-8581-063d9d85bb18",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 09:11:02.190298+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Malware scan (unverified → pass)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a04cc9-65ac-71f9-8581-063d9d85bb18"
    },
    {
      "id": "chg_01a047f5-2f10-70c2-9d6d-56964e96aa1f",
      "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_no_verdict"
      },
      "occurred_on": "2026-08-28",
      "occurred_at": "2026-08-28 10:40:45.538901+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Malware scan (pass → unverified)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a047f5-2f10-70c2-9d6d-56964e96aa1f"
    },
    {
      "id": "chg_01a02de3-2d03-7760-a277-f441e03bc401",
      "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": "2026-08-23",
      "occurred_at": "2026-08-23 09:10:57.941703+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Malware scan (unverified → pass)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a02de3-2d03-7760-a277-f441e03bc401"
    },
    {
      "id": "chg_01a027cc-78d0-759e-afc3-756b8cff665c",
      "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": "2026-08-22",
      "occurred_at": "2026-08-22 04:48:26.649983+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Malware scan (pass → unverified)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_01a027cc-78d0-759e-afc3-756b8cff665c"
    },
    {
      "id": "chg_019fe079-a580-7350-98a7-f98cf2f6b28e",
      "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": {
        "reason": "version_superseded"
      },
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 08:24:56.429199+00",
      "observed_since": "2026-08-07",
      "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/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_019fe079-a580-7350-98a7-f98cf2f6b28e"
    },
    {
      "id": "chg_019fd456-d18a-714d-9877-215d56ad77ca",
      "kind": "check.reason",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.sandbox_failed",
      "to_code": "stability.insufficient_history",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 23:51:27.350491+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Stability (Stability not yet verified: not enough scan history yet (needs a 30-day window).)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_019fd456-d18a-714d-9877-215d56ad77ca"
    },
    {
      "id": "chg_019fc2c1-1467-729b-8c2a-8f78da0d4cd5",
      "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 13:54:21.399979+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Malware scan (unverified → pass)",
      "link": "https://verifymcp.io/servers/slettmayer-calc-mcp-server/calc-mcp-server#chg-chg_019fc2c1-1467-729b-8c2a-8f78da0d4cd5"
    }
  ],
  "days": [
    {
      "date": "2026-09-20",
      "total": 80,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-19",
      "total": 80,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-18",
      "total": 80,
      "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": "2026-09-17",
        "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": 79,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-09-16",
      "total": 79,
      "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": "2026-09-15",
        "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": "2026-09-14",
      "total": 78,
      "delta": -2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-13",
      "total": 80,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-12",
      "total": 80,
      "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
    }
  ]
}