{
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  "component": "big-mac-index-mcp",
  "generated_at": "2026-11-05T13:03:10.364Z",
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    {
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      "observed_since": "2026-11-04",
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      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a1aa37-8434-7831-bc8a-45f18bf5ef8c"
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    {
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      "occurred_on": "2026-11-04",
      "occurred_at": "2026-11-04 05:32:44.036187+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a1a50b-9c98-7ec4-81e0-7e8b02995366"
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    {
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      "occurred_at": "2026-11-04 05:32:44.036187+00",
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      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a1a50b-9c97-78f5-82d6-842f7556cc69"
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      "occurred_at": "2026-11-04 05:32:44.036187+00",
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      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a1a50b-9c99-7d33-ad61-9cc5b70b5a96"
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      "occurred_at": "2026-11-04 05:32:44.036187+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a1a50b-9c99-78e1-80e9-6bdce345124c"
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      "occurred_at": "2026-11-04 05:32:44.036187+00",
      "observed_since": "2026-11-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a1a50b-9c99-7395-bbb7-8e5198264aa6"
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      "occurred_at": "2026-11-04 05:32:44.036187+00",
      "observed_since": "2026-11-03",
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      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a1a50b-9c9a-7243-8c92-43ea83798b2e"
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    {
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      "from_code": "stability.building_history",
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      "from_value": "0.23",
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      "detail": {
        "days": "8",
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        "auth_transport": "1"
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      "occurred_at": "2026-11-03 05:35:46.218061+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Stability (0.23 → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19fe8-0859-716e-95b4-b352b56e576b"
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    {
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      "occurred_at": "2026-11-03 05:35:46.218061+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19fe8-0857-7b31-a3af-d7c109920697"
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    {
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      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 05:35:46.218061+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19fe8-0859-7731-b4f3-fc033168d007"
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    {
      "id": "chg_01a19fe8-0859-7dba-b5f9-e17c9d49f60f",
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      "detail": {
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      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 05:35:46.218061+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19fe8-0859-7dba-b5f9-e17c9d49f60f"
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    {
      "id": "chg_01a19fe8-085a-7473-aa2e-004e309a5cff",
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      "materiality": "security",
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        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 05:35:46.218061+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19fe8-085a-7473-aa2e-004e309a5cff"
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    {
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      "materiality": "security",
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      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 05:35:46.218061+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19fe8-085a-7a6b-9d09-1d393be5eeae"
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      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 05:35:46.218061+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19fe8-085b-7100-9062-c0b6c0025932"
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    {
      "id": "chg_01a19abd-2249-7340-9b6d-952dc7c979b7",
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      "materiality": "security",
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      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 05:30:48.75468+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19abd-2249-7340-9b6d-952dc7c979b7"
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    {
      "id": "chg_01a19abd-224c-7480-bd18-e82da4f26a04",
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      "materiality": "security",
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      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 05:30:48.75468+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19abd-224c-7480-bd18-e82da4f26a04"
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    {
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      "subject_kind": "server",
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      "materiality": "security",
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      "detail": {},
      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 05:30:48.75468+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19abd-224d-76e8-9862-91c2d2a5ac77"
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    {
      "id": "chg_01a19abd-224d-710a-a4ac-0f8fbaa6d231",
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      "subject_kind": "tool",
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      "from_code": null,
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      "materiality": "security",
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      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 05:30:48.75468+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19abd-224d-710a-a4ac-0f8fbaa6d231"
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    {
      "id": "chg_01a19abd-224c-79c5-8a1e-2dc8c2952d3b",
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      "subject_kind": "tool",
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 05:30:48.75468+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19abd-224c-79c5-8a1e-2dc8c2952d3b"
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    {
      "id": "chg_01a19597-bb01-7840-a40b-e61ef2a0b341",
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      "family": "",
      "subject_kind": "server",
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      "from_code": null,
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-11-01",
      "occurred_at": "2026-11-01 05:31:51.395506+00",
      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19597-bb01-7840-a40b-e61ef2a0b341"
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    {
      "id": "chg_01a19597-bb01-73cf-8df7-18e10bc6526f",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-11-01",
      "occurred_at": "2026-11-01 05:31:51.395506+00",
      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19597-bb01-73cf-8df7-18e10bc6526f"
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    {
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      "subject_kind": "tool",
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      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-11-01",
      "occurred_at": "2026-11-01 05:31:51.395506+00",
      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19597-bafe-7a51-b304-eb57f0f95b56"
    },
    {
      "id": "chg_01a19597-baff-7ea0-a18d-3920284f9280",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-11-01",
      "occurred_at": "2026-11-01 05:31:51.395506+00",
      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19597-baff-7ea0-a18d-3920284f9280"
    },
    {
      "id": "chg_01a19597-bb00-788e-b55c-2e9846c2d5a9",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-11-01",
      "occurred_at": "2026-11-01 05:31:51.395506+00",
      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a19597-bb00-788e-b55c-2e9846c2d5a9"
    },
    {
      "id": "chg_01a18b4b-c187-749e-89f8-f4ed932474c1",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 05:32:39.959586+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18b4b-c187-749e-89f8-f4ed932474c1"
    },
    {
      "id": "chg_01a18b4b-c188-787e-9fd9-2924c8bf56d8",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 05:32:39.959586+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18b4b-c188-787e-9fd9-2924c8bf56d8"
    },
    {
      "id": "chg_01a18b4b-c18a-7963-aeb8-bca28123fbcf",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 05:32:39.959586+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18b4b-c18a-7963-aeb8-bca28123fbcf"
    },
    {
      "id": "chg_01a18b4b-c18a-7ec2-a244-50e87a7ded3f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "compare_entities",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "compare_entities"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 05:32:39.959586+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “compare_entities” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18b4b-c18a-7ec2-a244-50e87a7ded3f"
    },
    {
      "id": "chg_01a18b4b-c18b-7429-9a78-608812292889",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 05:32:39.959586+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18b4b-c18b-7429-9a78-608812292889"
    },
    {
      "id": "chg_01a18b4b-c18b-7942-88cc-bbaeeb90eb23",
      "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": "2026-10-30",
      "occurred_at": "2026-10-30 05:32:39.959586+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18b4b-c18b-7942-88cc-bbaeeb90eb23"
    },
    {
      "id": "chg_01a18615-9a28-7be6-9816-1eb6cd11a7fa",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "bet_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "bet_research"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 05:15:25.06244+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “bet_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18615-9a28-7be6-9816-1eb6cd11a7fa"
    },
    {
      "id": "chg_01a18615-9a2a-7143-a960-9acf59656763",
      "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 05:15:25.06244+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/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18615-9a2a-7143-a960-9acf59656763"
    },
    {
      "id": "chg_01a18615-9a27-7e1c-a35e-833155151b5a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 05:15:25.06244+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18615-9a27-7e1c-a35e-833155151b5a"
    },
    {
      "id": "chg_01a18615-9a26-7c45-8076-e6315cd20cc0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 05:15:25.06244+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18615-9a26-7c45-8076-e6315cd20cc0"
    },
    {
      "id": "chg_01a18615-9a28-73d1-9f2c-d58ff9851518",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 05:15:25.06244+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18615-9a28-73d1-9f2c-d58ff9851518"
    },
    {
      "id": "chg_01a18615-9a29-7b3a-81ad-6247b55e572a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 05:15:25.06244+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a18615-9a29-7b3a-81ad-6247b55e572a"
    },
    {
      "id": "chg_01a180ee-8bb9-7996-94e7-a74f55925337",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 05:14:39.150292+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a180ee-8bb9-7996-94e7-a74f55925337"
    },
    {
      "id": "chg_01a180ee-8bb7-79ef-aebd-e99dd39e8fdd",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 05:14:39.150292+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a180ee-8bb7-79ef-aebd-e99dd39e8fdd"
    },
    {
      "id": "chg_01a180ee-8bb8-7adb-b4ca-349a71b82444",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 05:14:39.150292+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a180ee-8bb8-7adb-b4ca-349a71b82444"
    },
    {
      "id": "chg_01a180ee-8bb9-73a3-ada3-8366e9445f83",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 05:14:39.150292+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a180ee-8bb9-73a3-ada3-8366e9445f83"
    },
    {
      "id": "chg_01a180ee-8bba-7634-9d46-5404d7dea278",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "polymarket_kalshi_spread",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "polymarket_kalshi_spread"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 05:14:39.150292+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a180ee-8bba-7634-9d46-5404d7dea278"
    },
    {
      "id": "chg_01a180ee-8bbc-70b6-851f-7c5bfd92ff88",
      "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": "2026-10-28",
      "occurred_at": "2026-10-28 05:14:39.150292+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/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a180ee-8bbc-70b6-851f-7c5bfd92ff88"
    },
    {
      "id": "chg_01a17bc7-3c9e-753a-8ecb-bcc418246918",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 05:13:36.960753+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a17bc7-3c9e-753a-8ecb-bcc418246918"
    },
    {
      "id": "chg_01a17bc7-3c9f-70c4-86cf-459d9b4b41fc",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 05:13:36.960753+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a17bc7-3c9f-70c4-86cf-459d9b4b41fc"
    },
    {
      "id": "chg_01a17bc7-3c9f-78c5-85cf-fea66dec04df",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 05:13:36.960753+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a17bc7-3c9f-78c5-85cf-fea66dec04df"
    },
    {
      "id": "chg_01a17bc7-3c9f-7e7d-b5b8-28bfb31988c2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 05:13:36.960753+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a17bc7-3c9f-7e7d-b5b8-28bfb31988c2"
    },
    {
      "id": "chg_01a17bc7-3ca0-7a7f-9352-8ad73b359535",
      "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 05:13:36.960753+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a17bc7-3ca0-7a7f-9352-8ad73b359535"
    },
    {
      "id": "chg_01a176a1-13f7-7a9a-a100-cb10b39199f2",
      "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": "45",
        "judged": "45"
      },
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 05:13:50.29453+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a176a1-13f7-7a9a-a100-cb10b39199f2"
    },
    {
      "id": "chg_01a176a1-13f7-73d5-be4b-348b60cd0222",
      "kind": "check.appeared",
      "family": "auth-registration",
      "subject_kind": "check",
      "subject": "auth-registration",
      "subject_child": "",
      "from_code": null,
      "to_code": "auth.registration_cimd",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 05:13:50.29453+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "First check of Authorization (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a176a1-13f7-73d5-be4b-348b60cd0222"
    },
    {
      "id": "chg_01a176a1-13f6-7cbd-ab64-5afef1211b4b",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 05:13:50.29453+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a176a1-13f6-7cbd-ab64-5afef1211b4b"
    },
    {
      "id": "chg_01a176a1-13f5-7d17-8915-cb9cf8d4ab0f",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 05:13:50.29453+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-big-mac-index/big-mac-index-mcp#chg-chg_01a176a1-13f5-7d17-8915-cb9cf8d4ab0f"
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    {
      "date": "2026-11-05",
      "total": 63,
      "delta": -14,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-11-04",
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      "delta": 15,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-11-03",
      "total": 62,
      "delta": -14,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
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    {
      "date": "2026-11-02",
      "total": 76,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-11-01",
      "total": 76,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
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    {
      "date": "2026-10-30",
      "total": 75,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
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    {
      "date": "2026-10-29",
      "total": 74,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
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    {
      "date": "2026-10-28",
      "total": 74,
      "delta": 1,
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      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
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}