{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "yappmaniac-grocery-price-snapshots",
  "component": "yappman-grocery-mcp",
  "generated_at": "2026-11-05T09:03:08.153Z",
  "tracking_since": "2026-10-23",
  "counts": {
    "critical": 0,
    "security": 9,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a1a577-4ec3-7f27-908d-c1895212acd7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "about_the_data",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "about_the_data"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 07:30:21.994876+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “about_the_data” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a1a577-4ec3-7f27-908d-c1895212acd7"
    },
    {
      "id": "chg_01a1a577-4ec5-724d-abda-fb825378e654",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_shelf_price_index",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_shelf_price_index"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 07:30:21.994876+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “get_shelf_price_index” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a1a577-4ec5-724d-abda-fb825378e654"
    },
    {
      "id": "chg_01a1a577-4ec5-7961-8c2b-d5e2e848526e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_basket_products",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_basket_products"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 07:30:21.994876+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “list_basket_products” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a1a577-4ec5-7961-8c2b-d5e2e848526e"
    },
    {
      "id": "chg_01a1a577-4ec5-7e2e-8cca-000e0315927a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_index_vintages",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_index_vintages"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 07:30:21.994876+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “list_index_vintages” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a1a577-4ec5-7e2e-8cca-000e0315927a"
    },
    {
      "id": "chg_01a1a577-4ec6-73df-a4d2-05befecbbee1",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "lookup_basket_prices",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "lookup_basket_prices"
      },
      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 07:30:21.994876+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “lookup_basket_prices” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a1a577-4ec6-73df-a4d2-05befecbbee1"
    },
    {
      "id": "chg_01a1a577-4ec7-7b31-b4c1-5e84598b6d33",
      "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 07:30:21.994876+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/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a1a577-4ec7-7b31-b4c1-5e84598b6d33"
    },
    {
      "id": "chg_01a17d3b-f477-7985-a144-b984c3de7b35",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "lookup_basket_prices",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "lookup_basket_prices"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 12:00:43.59955+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “lookup_basket_prices” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a17d3b-f477-7985-a144-b984c3de7b35"
    },
    {
      "id": "chg_01a17d3b-f479-7495-a66e-c2407ae26def",
      "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": "2026-10-27",
      "occurred_at": "2026-10-27 12:00:43.59955+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a17d3b-f479-7495-a66e-c2407ae26def"
    },
    {
      "id": "chg_01a17850-2cf4-7c6d-9f18-7e795c127a4f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "lookup_basket_prices",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "lookup_basket_prices"
      },
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 13:04:42.697802+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “lookup_basket_prices” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/yappmaniac-grocery-price-snapshots/yappman-grocery-mcp#chg-chg_01a17850-2cf4-7c6d-9f18-7e795c127a4f"
    }
  ],
  "days": [
    {
      "date": "2026-11-05",
      "total": 72,
      "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": "2026-11-04",
        "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": "2026-11-04",
      "total": 71,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-11-03",
      "total": 71,
      "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": "2026-11-02",
        "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": "2026-11-01",
      "total": 70,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 27,
        "to": 30,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 8,
          "to_days": 9
        },
        "partial": false,
        "compared_to": "2026-10-31",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 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": "2026-10-30",
      "total": 69,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 20,
        "to": 23,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 6,
          "to_days": 7
        },
        "partial": false,
        "compared_to": "2026-10-29",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-28",
      "total": 68,
      "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": "2026-10-27",
        "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": "2026-10-27",
      "total": 67,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 9
    },
    {
      "date": "2026-10-26",
      "total": 66,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    }
  ]
}