{
  "server": "app-railway-up-engine-production-3bdc-vhgengine",
  "component": "engine-production-3bdc",
  "generated_at": "2026-08-03T21:04:36.395Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 13,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_019fc4fd-15b6-72d0-921b-dd3da3c9ad1c",
      "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": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-15b6-72d0-921b-dd3da3c9ad1c"
    },
    {
      "id": "chg_019fc4fd-1585-7733-ae04-e7ab57c6ced8",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "delete_account",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "delete_account"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “delete_account” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-1585-7733-ae04-e7ab57c6ced8"
    },
    {
      "id": "chg_019fc4fd-1587-7331-8bba-6c23e3b7acc5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "generate_hooks",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "generate_hooks"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “generate_hooks” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-1587-7331-8bba-6c23e3b7acc5"
    },
    {
      "id": "chg_019fc4fd-158a-7f28-9b13-84effe3c57a8",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "generate_hooks_batch",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "generate_hooks_batch"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “generate_hooks_batch” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-158a-7f28-9b13-84effe3c57a8"
    },
    {
      "id": "chg_019fc4fd-158d-7dd7-b20c-df16b0542219",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_account",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_account"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “get_account” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-158d-7dd7-b20c-df16b0542219"
    },
    {
      "id": "chg_019fc4fd-1590-7ae5-a00b-26cb87607613",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_usage",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_usage"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “get_usage” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-1590-7ae5-a00b-26cb87607613"
    },
    {
      "id": "chg_019fc4fd-1593-79f6-86bf-3090cce0b629",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "health",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "health"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “health” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-1593-79f6-86bf-3090cce0b629"
    },
    {
      "id": "chg_019fc4fd-1593-7ebb-b75a-426d70333061",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_hooks",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_hooks"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “list_hooks” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-1593-7ebb-b75a-426d70333061"
    },
    {
      "id": "chg_019fc4fd-159c-7390-bcfc-92bf58b58f9e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "remix_hook",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "remix_hook"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “remix_hook” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-159c-7390-bcfc-92bf58b58f9e"
    },
    {
      "id": "chg_019fc4fd-15a4-7b98-bd04-9cfb7b0fd30d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "score_hook",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "score_hook"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “score_hook” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-15a4-7b98-bd04-9cfb7b0fd30d"
    },
    {
      "id": "chg_019fc4fd-15ab-7b9b-8060-26b0c5b3988b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "signup",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "signup"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “signup” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-15ab-7b9b-8060-26b0c5b3988b"
    },
    {
      "id": "chg_019fc4fd-15ad-728c-aedc-cee04593aa90",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "start_generate_job",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "start_generate_job"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “start_generate_job” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-15ad-728c-aedc-cee04593aa90"
    },
    {
      "id": "chg_019fc4fd-15b1-7d56-9d7d-22e28ba7e22f",
      "kind": "tool.added",
      "family": "",
      "subject_kind": "tool",
      "subject": "cancel_job",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "cancel_job",
        "destructive": "true"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 00:19:08.260754+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "New tool “cancel_job”, which the server declares destructive",
      "link": "https://verifymcp.io/servers/app-railway-up-engine-production-3bdc-vhgengine/engine-production-3bdc#chg-chg_019fc4fd-15b1-7d56-9d7d-22e28ba7e22f"
    }
  ],
  "days": [
    {
      "date": "2026-08-03",
      "total": 65,
      "delta": 6,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 155
    },
    {
      "date": "2026-08-01",
      "total": 59,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 17,
        "to": 20,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 5,
          "to_days": 6
        },
        "partial": false,
        "compared_to": "2026-07-31",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-07-31",
      "total": 58,
      "delta": 4,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-07-29",
      "total": 54,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 7,
        "to": 10,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 2,
          "to_days": 3
        },
        "partial": false,
        "compared_to": "2026-07-28",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-07-28",
      "total": 53,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 3,
        "to": 7,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 1,
          "to_days": 2
        },
        "partial": false,
        "compared_to": "2026-07-27",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-07-27",
      "total": 52,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-07-26",
      "total": 52,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 0
    }
  ]
}