{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "dev-crelvo-german-tax-data",
  "component": "data",
  "generated_at": "2026-09-22T07:28:22.416Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 15,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a056d9-23eb-778b-b3ca-d70f099dbc99",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "zweitwohnungsteuer_changes",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "zweitwohnungsteuer_changes"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 08:04:25.895761+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “zweitwohnungsteuer_changes” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_01a056d9-23eb-778b-b3ca-d70f099dbc99"
    },
    {
      "id": "chg_01a037f2-22d4-7dd7-98b9-8d58de09b45f",
      "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 08:03:30.523683+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_01a037f2-22d4-7dd7-98b9-8d58de09b45f"
    },
    {
      "id": "chg_019fd0f2-aec9-72aa-b770-734b1527ccc1",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "9"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 08:03:13.143303+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 9 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/dev-crelvo-german-tax-data/data#chg-chg_019fd0f2-aec9-72aa-b770-734b1527ccc1"
    },
    {
      "id": "chg_019fcbd0-8258-78c4-aa49-c5fb223c1b11",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.27",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "9",
        "added": "0",
        "breaks": "0",
        "removed": "9",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Stability (0.27 → fail)",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8258-78c4-aa49-c5fb223c1b11"
    },
    {
      "id": "chg_019fcbd0-829a-78b0-bb86-3b6c4e696fbb",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-829a-78b0-bb86-3b6c4e696fbb"
    },
    {
      "id": "chg_019fcbd0-8325-78c4-8a43-a33b7cc4fced",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "hundesteuer_by_state",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "hundesteuer_by_state"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “hundesteuer_by_state” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8325-78c4-8a43-a33b7cc4fced"
    },
    {
      "id": "chg_019fcbd0-8357-75fb-9401-d1ee908ffd9d",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "hundesteuer_lookup",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "hundesteuer_lookup"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “hundesteuer_lookup” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8357-75fb-9401-d1ee908ffd9d"
    },
    {
      "id": "chg_019fcbd0-8374-71dd-ab2a-b256ad1f59b3",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "hundesteuer_ranking",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "hundesteuer_ranking"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “hundesteuer_ranking” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8374-71dd-ab2a-b256ad1f59b3"
    },
    {
      "id": "chg_019fcbd0-8399-757a-abf0-e65c2e52c55c",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_datasets",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "list_datasets"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “list_datasets” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8399-757a-abf0-e65c2e52c55c"
    },
    {
      "id": "chg_019fcbd0-83b4-7c82-9a4e-f61aef8cb8eb",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "pfaendung_calc",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "pfaendung_calc"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “pfaendung_calc” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-83b4-7c82-9a4e-f61aef8cb8eb"
    },
    {
      "id": "chg_019fcbd0-83eb-7026-8ec9-e118b909c0d7",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "zweitwohnungsteuer_by_state",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "zweitwohnungsteuer_by_state"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “zweitwohnungsteuer_by_state” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-83eb-7026-8ec9-e118b909c0d7"
    },
    {
      "id": "chg_019fcbd0-8413-7469-9c72-95b59f691190",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "zweitwohnungsteuer_changes",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "zweitwohnungsteuer_changes"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “zweitwohnungsteuer_changes” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8413-7469-9c72-95b59f691190"
    },
    {
      "id": "chg_019fcbd0-8448-7af2-8bdd-02632c1da891",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "zweitwohnungsteuer_lookup",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "zweitwohnungsteuer_lookup"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “zweitwohnungsteuer_lookup” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8448-7af2-8bdd-02632c1da891"
    },
    {
      "id": "chg_019fcbd0-8465-78e9-9f31-8053325227e7",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "zweitwohnungsteuer_ranking",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "zweitwohnungsteuer_ranking"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Tool “zweitwohnungsteuer_ranking” was removed",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8465-78e9-9f31-8053325227e7"
    },
    {
      "id": "chg_019fcbd0-8499-71cf-8ba3-b373077d1d15",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "1.1.0",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "1.1.0",
      "to_value": "1.1.0",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "9",
        "version": "1.1.0",
        "breaking": "0"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:07:45.190297+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 1.1.0)",
      "link": "https://verifymcp.io/servers/dev-crelvo-german-tax-data/data#chg-chg_019fcbd0-8499-71cf-8ba3-b373077d1d15"
    }
  ],
  "days": [
    {
      "date": "2026-08-31",
      "total": 82,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-08-26",
      "total": 82,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-25",
      "total": 81,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-24",
      "total": 81,
      "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": "2026-08-23",
        "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": "2026-08-11",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-05",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 15
    },
    {
      "date": "2026-08-04",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 16
    },
    {
      "date": "2026-07-31",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}