{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "me-besthotels4-reservas",
  "component": "mcp",
  "generated_at": "2026-11-05T11:52:56.812Z",
  "tracking_since": "2026-10-29",
  "counts": {
    "critical": 0,
    "security": 9,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a1a951-06a9-73cf-ab82-24dc6f814efc",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_payment",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_payment"
      },
      "occurred_on": "2026-11-05",
      "occurred_at": "2026-11-05 01:27:01.990189+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Tool “create_payment” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a1a951-06a9-73cf-ab82-24dc6f814efc"
    },
    {
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      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_quote"
      },
      "occurred_on": "2026-11-05",
      "occurred_at": "2026-11-05 01:27:01.990189+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Tool “get_quote” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a1a951-06ac-7cc6-9369-a329961bc340"
    },
    {
      "id": "chg_01a1a42a-2b58-7ead-9484-2c22391c9e97",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_payment",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_payment"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 01:26:29.449488+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “create_payment” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a1a42a-2b58-7ead-9484-2c22391c9e97"
    },
    {
      "id": "chg_01a1a42a-2b5a-7525-960d-f28cf323f238",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_quote",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_quote"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 01:26:29.449488+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “get_quote” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a1a42a-2b5a-7525-960d-f28cf323f238"
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    {
      "id": "chg_01a199dd-cd07-7218-ab09-ac878e8af20a",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
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      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 01:26:52.403749+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Tool “cancel_booking” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a199dd-cd07-7218-ab09-ac878e8af20a"
    },
    {
      "id": "chg_01a18f91-b3f3-7944-a31a-794c0a2d6cf6",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_payment",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_payment"
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      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 01:27:33.036856+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “create_payment” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a18f91-b3f3-7944-a31a-794c0a2d6cf6"
    },
    {
      "id": "chg_01a18f91-b3f4-7b9f-a7a0-15e23344bb14",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_quote"
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      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 01:27:33.036856+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “get_quote” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a18f91-b3f4-7b9f-a7a0-15e23344bb14"
    },
    {
      "id": "chg_01a18f91-b3f5-794e-943f-5f589296ce66",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_hotels"
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      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 01:27:33.036856+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “search_hotels” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a18f91-b3f5-794e-943f-5f589296ce66"
    },
    {
      "id": "chg_01a18f91-b3f6-7982-a19d-4578c95cbaa2",
      "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": "2026-10-31",
      "occurred_at": "2026-10-31 01:27:33.036856+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/me-besthotels4-reservas/mcp#chg-chg_01a18f91-b3f6-7982-a19d-4578c95cbaa2"
    }
  ],
  "days": [
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      "date": "2026-11-05",
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      "delta": 0,
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      "event_count": 3
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    {
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      "attribution": null,
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    {
      "date": "2026-11-02",
      "total": 60,
      "delta": 1,
      "tracked": true,
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      "attribution": null,
      "event_count": 1
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    {
      "date": "2026-10-31",
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      "delta": 1,
      "tracked": true,
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      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
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    {
      "date": "2026-10-30",
      "total": 58,
      "delta": 0,
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      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
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    {
      "date": "2026-10-29",
      "total": 58,
      "delta": null,
      "tracked": true,
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      "attribution": null,
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}