{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "group-hengyu-ai-ada",
  "component": "ai",
  "generated_at": "2026-10-18T17:22:49.184Z",
  "tracking_since": "2026-10-03",
  "counts": {
    "critical": 0,
    "security": 11,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a12643-29d0-725a-9372-7c898341ef9f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "shelf_get",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "shelf_get"
      },
      "occurred_on": "2026-10-10",
      "occurred_at": "2026-10-10 14:41:38.120313+00",
      "observed_since": "2026-10-08",
      "source": "scan",
      "summary": "Tool “shelf_get” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a12643-29d0-725a-9372-7c898341ef9f"
    },
    {
      "id": "chg_01a12643-29d2-79f9-85dc-649a458f78d7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "shelf_put",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "shelf_put"
      },
      "occurred_on": "2026-10-10",
      "occurred_at": "2026-10-10 14:41:38.120313+00",
      "observed_since": "2026-10-08",
      "source": "scan",
      "summary": "Tool “shelf_put” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a12643-29d2-79f9-85dc-649a458f78d7"
    },
    {
      "id": "chg_01a10660-e86e-7382-8732-115bc991de64",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "clock_now",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "clock_now"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Tool “clock_now” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e86e-7382-8732-115bc991de64"
    },
    {
      "id": "chg_01a10660-e86f-71a1-a20b-f1555544485d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "id_attest",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "id_attest"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Tool “id_attest” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e86f-71a1-a20b-f1555544485d"
    },
    {
      "id": "chg_01a10660-e86f-76ce-9a18-532d675213a5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "memory_delete",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "memory_delete"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Tool “memory_delete” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e86f-76ce-9a18-532d675213a5"
    },
    {
      "id": "chg_01a10660-e86f-7bab-bb99-50e9dd81e2a0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "memory_get",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "memory_get"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Tool “memory_get” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e86f-7bab-bb99-50e9dd81e2a0"
    },
    {
      "id": "chg_01a10660-e870-7106-b015-70ab7e3971f6",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "memory_list",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "memory_list"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Tool “memory_list” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e870-7106-b015-70ab7e3971f6"
    },
    {
      "id": "chg_01a10660-e871-7566-ba7a-8d0c7e3a55a2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "memory_put",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "memory_put"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Tool “memory_put” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e871-7566-ba7a-8d0c7e3a55a2"
    },
    {
      "id": "chg_01a10660-e874-7121-93ee-afcd37917424",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "text_slice",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "text_slice"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Tool “text_slice” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e874-7121-93ee-afcd37917424"
    },
    {
      "id": "chg_01a10660-e874-75da-bf8c-5cedec186532",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "web_read",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "web_read"
      },
      "occurred_on": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "Tool “web_read” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e874-75da-bf8c-5cedec186532"
    },
    {
      "id": "chg_01a10660-e87a-716b-b054-8359b0db651c",
      "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": "2026-10-04",
      "occurred_at": "2026-10-04 10:06:16.47697+00",
      "observed_since": "2026-10-03",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/group-hengyu-ai-ada/ai#chg-chg_01a10660-e87a-716b-b054-8359b0db651c"
    }
  ],
  "days": [
    {
      "date": "2026-10-18",
      "total": 68,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 47,
        "to": 50,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 14,
          "to_days": 15
        },
        "partial": false,
        "compared_to": "2026-10-17",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-16",
      "total": 67,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 40,
        "to": 43,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 12,
          "to_days": 13
        },
        "partial": false,
        "compared_to": "2026-10-15",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-14",
      "total": 66,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 33,
        "to": 37,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 10,
          "to_days": 11
        },
        "partial": false,
        "compared_to": "2026-10-13",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-12",
      "total": 65,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 23,
        "to": 30,
        "delta": 7,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 7,
          "to_days": 9
        },
        "partial": false,
        "compared_to": "2026-10-10",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 23 to 30. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-10",
      "total": 64,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-10-08",
      "total": 63,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 10,
        "to": 17,
        "delta": 7,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 3,
          "to_days": 5
        },
        "partial": false,
        "compared_to": "2026-10-06",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 10 to 17. That category is still filling its 30-day observation window: 3 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": "2026-10-06",
      "total": 62,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 3,
        "to": 10,
        "delta": 7,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 1,
          "to_days": 3
        },
        "partial": false,
        "compared_to": "2026-10-04",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 3 to 10. That category is still filling its 30-day observation window: 1 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": "2026-10-04",
      "total": 61,
      "delta": 2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 18
    }
  ]
}