{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "cyanheads-art-institute-chicago-mcp-server",
  "component": "art-institute-chicago",
  "generated_at": "2026-11-05T11:42:26.783Z",
  "tracking_since": "2026-10-02",
  "counts": {
    "critical": 0,
    "security": 9,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a1a555-0c9d-7b66-9b82-2f67e569c7b2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "artic_get_artworks",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "artic_get_artworks"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 06:52:56.830633+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “artic_get_artworks” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a1a555-0c9d-7b66-9b82-2f67e569c7b2"
    },
    {
      "id": "chg_01a1a555-0cac-7a23-a5fb-df8cc2af18fd",
      "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 06:52:56.830633+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/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a1a555-0cac-7a23-a5fb-df8cc2af18fd"
    },
    {
      "id": "chg_01a1a555-0ca3-7234-a59f-0c9a391bb71e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "artic_search_artworks",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "artic_search_artworks"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 06:52:56.830633+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “artic_search_artworks” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a1a555-0ca3-7234-a59f-0c9a391bb71e"
    },
    {
      "id": "chg_01a19683-919a-73b6-b0e5-3598fc68369c",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-11-01",
      "occurred_at": "2026-11-01 09:49:27.302678+00",
      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a19683-919a-73b6-b0e5-3598fc68369c"
    },
    {
      "id": "chg_01a185c2-ac1e-7970-b792-cedfc8ce1932",
      "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 03:44:49.999385+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/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a185c2-ac1e-7970-b792-cedfc8ce1932"
    },
    {
      "id": "chg_01a185c2-ac1c-7ada-aa76-8ba01b7ef29c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "artic_search_exhibitions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "artic_search_exhibitions"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 03:44:49.999385+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “artic_search_exhibitions” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a185c2-ac1c-7ada-aa76-8ba01b7ef29c"
    },
    {
      "id": "chg_01a1366c-ddbb-730a-8f8b-35309294b787",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "artic_get_artworks",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "artic_get_artworks"
      },
      "occurred_on": "2026-10-13",
      "occurred_at": "2026-10-13 18:01:06.531089+00",
      "observed_since": "2026-10-13",
      "source": "scan",
      "summary": "Tool “artic_get_artworks” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a1366c-ddbb-730a-8f8b-35309294b787"
    },
    {
      "id": "chg_01a1366c-de1f-7924-973c-08259b432755",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "artic_search_exhibitions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "artic_search_exhibitions"
      },
      "occurred_on": "2026-10-13",
      "occurred_at": "2026-10-13 18:01:06.531089+00",
      "observed_since": "2026-10-13",
      "source": "scan",
      "summary": "Tool “artic_search_exhibitions” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a1366c-de1f-7924-973c-08259b432755"
    },
    {
      "id": "chg_01a1366c-ded9-7d63-ade4-8dfcd854d084",
      "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": "2026-10-13",
      "occurred_at": "2026-10-13 18:01:06.531089+00",
      "observed_since": "2026-10-13",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/cyanheads-art-institute-chicago-mcp-server/art-institute-chicago#chg-chg_01a1366c-ded9-7d63-ade4-8dfcd854d084"
    }
  ],
  "days": [
    {
      "date": "2026-11-04",
      "total": 88,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 23
    },
    {
      "date": "2026-11-01",
      "total": 88,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-31",
      "total": 88,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 93,
        "to": 97,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 28,
          "to_days": 29
        },
        "partial": false,
        "compared_to": "2026-10-30",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-29",
      "total": 87,
      "delta": 3,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
    },
    {
      "date": "2026-10-28",
      "total": 84,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 83,
        "to": 87,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 25,
          "to_days": 26
        },
        "partial": false,
        "compared_to": "2026-10-27",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-25",
      "total": 83,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-23",
      "total": 82,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 67,
        "to": 70,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 20,
          "to_days": 21
        },
        "partial": false,
        "compared_to": "2026-10-22",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-21",
      "total": 81,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 60,
        "to": 63,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 18,
          "to_days": 19
        },
        "partial": false,
        "compared_to": "2026-10-20",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    }
  ]
}