{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "io-fdb4-football-database-and-results",
  "component": "fdb4",
  "generated_at": "2026-09-29T05:02:42.323Z",
  "tracking_since": "2026-08-31",
  "counts": {
    "critical": 0,
    "security": 16,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0d1d2-30aa-772c-8fbd-d4bd8c14d188",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_draw_model",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_draw_model"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “get_draw_model” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30aa-772c-8fbd-d4bd8c14d188"
    },
    {
      "id": "chg_01a0d1d2-30ad-76c1-8101-cf0fc42f1103",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_team",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_team"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “get_team” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30ad-76c1-8101-cf0fc42f1103"
    },
    {
      "id": "chg_01a0d1d2-30ae-7ead-aaba-5c10a020104e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_team_prediction",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_team_prediction"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “get_team_prediction” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30ae-7ead-aaba-5c10a020104e"
    },
    {
      "id": "chg_01a0d1d2-30b0-7afe-ac53-f451b7e36981",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_team_streaks",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_team_streaks"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “get_team_streaks” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b0-7afe-ac53-f451b7e36981"
    },
    {
      "id": "chg_01a0d1d2-30b2-74d1-be72-cf7844606396",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "head_to_head",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "head_to_head"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “head_to_head” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b2-74d1-be72-cf7844606396"
    },
    {
      "id": "chg_01a0d1d2-30b3-75bb-90da-544c813ab88e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_countries",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_countries"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “list_countries” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b3-75bb-90da-544c813ab88e"
    },
    {
      "id": "chg_01a0d1d2-30b4-7382-91f4-7eaa171d4df0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_teams",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_teams"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “list_teams” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b4-7382-91f4-7eaa171d4df0"
    },
    {
      "id": "chg_01a0d1d2-30b5-7292-9b6a-c95f0d3fe3fb",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_tournaments",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_tournaments"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “list_tournaments” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b5-7292-9b6a-c95f0d3fe3fb"
    },
    {
      "id": "chg_01a0d1d2-30b6-7035-b91f-38e7a8cdb9ec",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "predict_draws",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "predict_draws"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “predict_draws” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b6-7035-b91f-38e7a8cdb9ec"
    },
    {
      "id": "chg_01a0d1d2-30b6-7e04-991a-46631fc20209",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search_results",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search_results"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “search_results” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b6-7e04-991a-46631fc20209"
    },
    {
      "id": "chg_01a0d1d2-30b8-715d-8b6b-d3ed920ed815",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "top_streaks",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "top_streaks"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “top_streaks” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b8-715d-8b6b-d3ed920ed815"
    },
    {
      "id": "chg_01a0d1d2-30b8-7dc9-9bde-79a1167059f2",
      "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": "2026-09-24",
      "occurred_at": "2026-09-24 05:10:08.114863+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0d1d2-30b8-7dc9-9bde-79a1167059f2"
    },
    {
      "id": "chg_01a0c9d8-b205-72b2-9bcb-31848b402ef4",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.challenge_only",
      "to_code": "auth.none_undeclared",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "11"
      },
      "occurred_on": "2026-09-22",
      "occurred_at": "2026-09-22 16:00:16.757268+00",
      "observed_since": "2026-09-21",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0c9d8-b205-72b2-9bcb-31848b402ef4"
    },
    {
      "id": "chg_01a0c9d8-b207-7ca4-830b-4eb74be009d2",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-22",
      "occurred_at": "2026-09-22 16:00:16.757268+00",
      "observed_since": "2026-09-21",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0c9d8-b207-7ca4-830b-4eb74be009d2"
    },
    {
      "id": "chg_01a0c9d8-b208-7c5f-b2ff-5a55004ca997",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.auth_gated",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-22",
      "occurred_at": "2026-09-22 16:00:16.757268+00",
      "observed_since": "2026-09-21",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0c9d8-b208-7c5f-b2ff-5a55004ca997"
    },
    {
      "id": "chg_01a0c9d8-b209-73c3-9ce4-1df6b43932ca",
      "kind": "check.appeared",
      "family": "tool-safety-manipulation",
      "subject_kind": "check",
      "subject": "tool-safety-manipulation",
      "subject_child": "",
      "from_code": null,
      "to_code": "toolsafety.manipulation_clean",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "units": "12",
        "judged": "12"
      },
      "occurred_on": "2026-09-22",
      "occurred_at": "2026-09-22 16:00:16.757268+00",
      "observed_since": "2026-09-21",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/io-fdb4-football-database-and-results/fdb4#chg-chg_01a0c9d8-b209-73c3-9ce4-1df6b43932ca"
    }
  ],
  "days": [
    {
      "date": "2026-09-28",
      "total": 67,
      "delta": 7,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-27",
      "total": 60,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 13,
        "to": 17,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 4,
          "to_days": 5
        },
        "partial": false,
        "compared_to": "2026-09-26",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-25",
      "total": 59,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-24",
      "total": 59,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 36
    },
    {
      "date": "2026-09-23",
      "total": 58,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-22",
      "total": 58,
      "delta": 30,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 11
    },
    {
      "date": "2026-08-31",
      "total": 28,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 0
    }
  ]
}