{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "co-esimcompare-travel-esim-prices",
  "component": "esimcompare",
  "generated_at": "2026-11-05T14:07:48.687Z",
  "tracking_since": "2026-10-26",
  "counts": {
    "critical": 0,
    "security": 16,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a1aa98-b2b8-7ebd-b8e4-6d185f09982f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_esim_plans",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_esim_plans"
      },
      "occurred_on": "2026-11-05",
      "occurred_at": "2026-11-05 07:24:56.352555+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Tool “search_esim_plans” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a1aa98-b2b8-7ebd-b8e4-6d185f09982f"
    },
    {
      "id": "chg_01a1aa98-b2ba-729d-849b-b8bba05c0a57",
      "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": "2026-11-05",
      "occurred_at": "2026-11-05 07:24:56.352555+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a1aa98-b2ba-729d-849b-b8bba05c0a57"
    },
    {
      "id": "chg_01a1a56c-5ecb-78bb-bb84-e5a024292d37",
      "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": "2026-11-04",
      "occurred_at": "2026-11-04 07:18:25.20222+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a1a56c-5ecb-78bb-bb84-e5a024292d37"
    },
    {
      "id": "chg_01a1a048-4605-7902-afc5-66d5456a4a61",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "esim_price_index",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "esim_price_index"
      },
      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 07:20:53.489915+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Tool “esim_price_index” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a1a048-4605-7902-afc5-66d5456a4a61"
    },
    {
      "id": "chg_01a1a048-4607-7ef8-a582-497c9a812439",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_esim_plans",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_esim_plans"
      },
      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 07:20:53.489915+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Tool “search_esim_plans” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a1a048-4607-7ef8-a582-497c9a812439"
    },
    {
      "id": "chg_01a1a048-4608-7561-a3d7-e139c8373f7c",
      "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": "2026-11-03",
      "occurred_at": "2026-11-03 07:20:53.489915+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a1a048-4608-7561-a3d7-e139c8373f7c"
    },
    {
      "id": "chg_01a190d2-ccfc-770f-bf9d-7b78028a5508",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_esim_plans",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_esim_plans"
      },
      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 07:18:16.547425+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “search_esim_plans” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a190d2-ccfc-770f-bf9d-7b78028a5508"
    },
    {
      "id": "chg_01a190d2-ccfd-78f9-8afb-cbf957fdc68e",
      "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 07:18:16.547425+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/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a190d2-ccfd-78f9-8afb-cbf957fdc68e"
    },
    {
      "id": "chg_01a18bae-7264-763b-b9d7-beec99bfad65",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_esim_plans",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_esim_plans"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 07:20:27.970822+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “search_esim_plans” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a18bae-7264-763b-b9d7-beec99bfad65"
    },
    {
      "id": "chg_01a18bae-7265-73eb-b480-71c7191c7c96",
      "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": "2026-10-30",
      "occurred_at": "2026-10-30 07:20:27.970822+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a18bae-7265-73eb-b480-71c7191c7c96"
    },
    {
      "id": "chg_01a18688-ff97-7436-917f-0e8db217d354",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "esim_price_index",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "esim_price_index"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 07:21:27.673791+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “esim_price_index” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a18688-ff97-7436-917f-0e8db217d354"
    },
    {
      "id": "chg_01a18688-ff99-7d70-8831-f32d42213c26",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_esim_plans",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_esim_plans"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 07:21:27.673791+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “search_esim_plans” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a18688-ff99-7d70-8831-f32d42213c26"
    },
    {
      "id": "chg_01a18688-ff9a-7492-b84a-5d2feb6f73a9",
      "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": "2026-10-29",
      "occurred_at": "2026-10-29 07:21:27.673791+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a18688-ff9a-7492-b84a-5d2feb6f73a9"
    },
    {
      "id": "chg_01a1815d-66cf-7056-a6c1-4675df825a47",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_esim_plans",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_esim_plans"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 07:15:44.416985+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “search_esim_plans” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a1815d-66cf-7056-a6c1-4675df825a47"
    },
    {
      "id": "chg_01a1815d-66d0-7558-ac83-df37da44d843",
      "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": "2026-10-28",
      "occurred_at": "2026-10-28 07:15:44.416985+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a1815d-66d0-7558-ac83-df37da44d843"
    },
    {
      "id": "chg_01a17c36-ff8b-74e8-ad04-8f7f0af8d18e",
      "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": "2026-10-27",
      "occurred_at": "2026-10-27 07:15:41.559446+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/co-esimcompare-travel-esim-prices/esimcompare#chg-chg_01a17c36-ff8b-74e8-ad04-8f7f0af8d18e"
    }
  ],
  "days": [
    {
      "date": "2026-11-05",
      "total": 77,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-11-04",
      "total": 77,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-11-03",
      "total": 76,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-11-02",
      "total": 76,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 20,
        "to": 23,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 6,
          "to_days": 7
        },
        "partial": false,
        "compared_to": "2026-11-01",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-31",
      "total": 75,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-10-30",
      "total": 74,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-10-29",
      "total": 74,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-10-28",
      "total": 74,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    }
  ]
}