{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "musikalienhandel-de-mcp-server",
  "component": "mcp",
  "generated_at": "2026-09-24T20:49:42.950Z",
  "tracking_since": "2026-08-27",
  "counts": {
    "critical": 0,
    "security": 17,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a08ea9-886e-7ac3-841d-d9d9a890ab35",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "check_bargain_alternative",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "check_bargain_alternative"
      },
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:11:10.168351+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “check_bargain_alternative” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a08ea9-886e-7ac3-841d-d9d9a890ab35"
    },
    {
      "id": "chg_01a08ea9-886f-7c86-ad5c-e5df051d34d4",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_product",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_product"
      },
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:11:10.168351+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “get_product” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a08ea9-886f-7c86-ad5c-e5df051d34d4"
    },
    {
      "id": "chg_01a08ea9-8870-71d0-b177-b9aebe45d8ab",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_bargain_stock",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_bargain_stock"
      },
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:11:10.168351+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “search_bargain_stock” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a08ea9-8870-71d0-b177-b9aebe45d8ab"
    },
    {
      "id": "chg_01a08ea9-8870-77a6-9407-7a8de1fb66ed",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_instruments",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_instruments"
      },
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:11:10.168351+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “search_instruments” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a08ea9-8870-77a6-9407-7a8de1fb66ed"
    },
    {
      "id": "chg_01a08ea9-8870-7bbb-a24f-0899459b49e7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_sheet_music",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_sheet_music"
      },
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:11:10.168351+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “search_sheet_music” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a08ea9-8870-7bbb-a24f-0899459b49e7"
    },
    {
      "id": "chg_01a08983-592f-7e7d-ba12-30ba2d428259",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_product",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_product"
      },
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:11:21.676073+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “get_product” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a08983-592f-7e7d-ba12-30ba2d428259"
    },
    {
      "id": "chg_01a0845e-3437-76d4-860e-506e13dd8d9d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "check_bargain_alternative",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "check_bargain_alternative"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:12:41.273756+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “check_bargain_alternative” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a0845e-3437-76d4-860e-506e13dd8d9d"
    },
    {
      "id": "chg_01a0845e-3438-70c6-877e-7bf7bf76af8b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_product",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_product"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:12:41.273756+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “get_product” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a0845e-3438-70c6-877e-7bf7bf76af8b"
    },
    {
      "id": "chg_01a0845e-3438-7529-90a8-d8f2db2c5a39",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_bargain_stock",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_bargain_stock"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:12:41.273756+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “search_bargain_stock” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a0845e-3438-7529-90a8-d8f2db2c5a39"
    },
    {
      "id": "chg_01a0845e-3438-7914-9d69-15cf48a1955d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_instruments",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_instruments"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:12:41.273756+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “search_instruments” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a0845e-3438-7914-9d69-15cf48a1955d"
    },
    {
      "id": "chg_01a0845e-3438-7cfe-b010-a1a63420f10b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_sheet_music",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_sheet_music"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:12:41.273756+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “search_sheet_music” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a0845e-3438-7cfe-b010-a1a63420f10b"
    },
    {
      "id": "chg_01a06576-f4be-701a-9643-eefb9cac4697",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "check_bargain_alternative",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "check_bargain_alternative"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:11:29.755547+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “check_bargain_alternative” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a06576-f4be-701a-9643-eefb9cac4697"
    },
    {
      "id": "chg_01a06576-f4be-79ae-8769-2d0e343323f8",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_product",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_product"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:11:29.755547+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “get_product” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a06576-f4be-79ae-8769-2d0e343323f8"
    },
    {
      "id": "chg_01a06576-f4bf-7056-a89d-008b865a9fe7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_bargain_stock",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_bargain_stock"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:11:29.755547+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “search_bargain_stock” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a06576-f4bf-7056-a89d-008b865a9fe7"
    },
    {
      "id": "chg_01a06576-f4bf-74fc-9b7f-a913e56a8bba",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_instruments",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_instruments"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:11:29.755547+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “search_instruments” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a06576-f4bf-74fc-9b7f-a913e56a8bba"
    },
    {
      "id": "chg_01a06576-f4bf-7946-804f-14903f133db5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_sheet_music",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_sheet_music"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:11:29.755547+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “search_sheet_music” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a06576-f4bf-7946-804f-14903f133db5"
    },
    {
      "id": "chg_01a06576-f4c0-7152-81d8-313573cb4887",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:11:29.755547+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/musikalienhandel-de-mcp-server/mcp#chg-chg_01a06576-f4c0-7152-81d8-313573cb4887"
    }
  ],
  "days": [
    {
      "date": "2026-09-23",
      "total": 78,
      "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": "2026-09-22",
        "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": "2026-09-21",
      "total": 77,
      "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": "2026-09-20",
        "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": "2026-09-19",
      "total": 76,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 73,
        "to": 77,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 22,
          "to_days": 23
        },
        "partial": false,
        "compared_to": "2026-09-18",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-16",
      "total": 75,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 63,
        "to": 67,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 19,
          "to_days": 20
        },
        "partial": false,
        "compared_to": "2026-09-15",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-14",
      "total": 74,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 57,
        "to": 60,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 17,
          "to_days": 18
        },
        "partial": false,
        "compared_to": "2026-09-13",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-12",
      "total": 73,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 50,
        "to": 53,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 15,
          "to_days": 16
        },
        "partial": false,
        "compared_to": "2026-09-11",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-11",
      "total": 72,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
    },
    {
      "date": "2026-09-10",
      "total": 72,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}