{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "io-penguin-stats-penguin-stats",
  "component": "mcp",
  "generated_at": "2026-10-24T20:31:09.741Z",
  "tracking_since": "2026-10-23",
  "counts": {
    "critical": 0,
    "security": 7,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a16c1e-701c-70d1-b9e8-97936c510311",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.churn",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "1",
        "added": "0",
        "breaks": "3",
        "removed": "0",
        "auth_transport": "0"
      },
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 04:14:56.503484+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Stability (unverified → fail)",
      "link": "https://verifymcp.io/servers/io-penguin-stats-penguin-stats/mcp#chg-chg_01a16c1e-701c-70d1-b9e8-97936c510311"
    },
    {
      "id": "chg_01a16c1e-701c-7d97-9dd6-fafaf1135c17",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_item_drop_rates",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_item_drop_rates"
      },
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 04:14:56.503484+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “get_item_drop_rates” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-penguin-stats-penguin-stats/mcp#chg-chg_01a16c1e-701c-7d97-9dd6-fafaf1135c17"
    },
    {
      "id": "chg_01a16c1e-701e-77f5-a401-8c32df4c468b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_stage_drops",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_stage_drops"
      },
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 04:14:56.503484+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “get_stage_drops” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-penguin-stats-penguin-stats/mcp#chg-chg_01a16c1e-701e-77f5-a401-8c32df4c468b"
    },
    {
      "id": "chg_01a16c1e-7024-7247-8c80-2f8eb32dc890",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_items",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_items"
      },
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 04:14:56.503484+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “search_items” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-penguin-stats-penguin-stats/mcp#chg-chg_01a16c1e-7024-7247-8c80-2f8eb32dc890"
    },
    {
      "id": "chg_01a16c1e-7024-7eef-bcdc-a73bea8754f5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_stages",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_stages"
      },
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 04:14:56.503484+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “search_stages” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-penguin-stats-penguin-stats/mcp#chg-chg_01a16c1e-7024-7eef-bcdc-a73bea8754f5"
    },
    {
      "id": "chg_01a16c1e-7026-7a3c-a72d-03436bc30934",
      "kind": "server.name_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "io.penguin-stats/penguin-stats",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "penguin-stats",
      "to_value": "io.penguin-stats/penguin-stats",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "to": "io.penguin-stats/penguin-stats",
        "from": "penguin-stats"
      },
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 04:14:56.503484+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "The server changed its declared name (penguin-stats → io.penguin-stats/penguin-stats)",
      "link": "https://verifymcp.io/servers/io-penguin-stats-penguin-stats/mcp#chg-chg_01a16c1e-7026-7a3c-a72d-03436bc30934"
    },
    {
      "id": "chg_01a16c1e-7028-7db3-955c-a64e0ce6b6bb",
      "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": "2026-10-24",
      "occurred_at": "2026-10-24 04:14:56.503484+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/io-penguin-stats-penguin-stats/mcp#chg-chg_01a16c1e-7028-7db3-955c-a64e0ce6b6bb"
    }
  ],
  "days": [
    {
      "date": "2026-10-24",
      "total": 71,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 21
    },
    {
      "date": "2026-10-23",
      "total": 71,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 0
    }
  ]
}