{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "pipeworx-io-cactus",
  "component": "cactus-mcp",
  "generated_at": "2026-10-07T18:31:02.735Z",
  "tracking_since": "2026-07-26",
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      "id": "chg_01a09ddd-092f-749d-9a64-9e91fad981df",
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      "occurred_at": "2026-09-14 03:01:43.730408+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09ddd-092f-749d-9a64-9e91fad981df"
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    {
      "id": "chg_01a09ddd-0930-76e5-af24-2deddd60e529",
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      "from_value": "fail",
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      "occurred_at": "2026-09-14 03:01:43.730408+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09ddd-0930-76e5-af24-2deddd60e529"
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    {
      "id": "chg_01a09ddd-0930-7d3f-8f81-a62db4a3ef52",
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      "family": "tool-safety-injection",
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      "subject": "tool-safety-injection",
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      "from_code": "toolsafety.injection_clean",
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      "occurred_at": "2026-09-14 03:01:43.730408+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09ddd-0930-7d3f-8f81-a62db4a3ef52"
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    {
      "id": "chg_01a098b6-bc4a-727a-ae84-40414f3e9de1",
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      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a098b6-bc4a-727a-ae84-40414f3e9de1"
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    {
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      "materiality": "security",
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      "occurred_at": "2026-09-13 03:01:47.41336+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a098b6-bc4c-7b30-a8f3-b0c3d375d584"
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    {
      "id": "chg_01a098b6-bc4d-72b6-8e81-612046684bfb",
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        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 03:01:47.41336+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a098b6-bc4d-72b6-8e81-612046684bfb"
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    {
      "id": "chg_01a098b6-bc4d-7d3b-973d-5c797c5b93d7",
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      "materiality": "security",
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        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 03:01:47.41336+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a098b6-bc4d-7d3b-973d-5c797c5b93d7"
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    {
      "id": "chg_01a098b6-bc4e-7235-8282-101c7810f70a",
      "kind": "tool.description_changed",
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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": "2026-09-13",
      "occurred_at": "2026-09-13 03:01:47.41336+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a098b6-bc4e-7235-8282-101c7810f70a"
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    {
      "id": "chg_01a098b6-bc4e-7b29-899b-5cc088ec2efb",
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      "subject_kind": "server",
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      "from_code": null,
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      "from_value": null,
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      "materiality": "security",
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      "detail": {},
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 03:01:47.41336+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a098b6-bc4e-7b29-899b-5cc088ec2efb"
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    {
      "id": "chg_01a09398-b3cf-74ec-9220-08dcbc228e62",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
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      "from_code": "auth.none_destructive",
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      "materiality": "security",
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      "occurred_at": "2026-09-12 03:10:53.296702+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09398-b3cf-74ec-9220-08dcbc228e62"
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    {
      "id": "chg_01a09398-b3d0-7484-b049-956f19b6fb39",
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      "subject_kind": "tool",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 03:10:53.296702+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09398-b3d0-7484-b049-956f19b6fb39"
    },
    {
      "id": "chg_01a09398-b3d0-79f8-be71-1be939348e30",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
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      "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": "2026-09-12",
      "occurred_at": "2026-09-12 03:10:53.296702+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09398-b3d0-79f8-be71-1be939348e30"
    },
    {
      "id": "chg_01a09398-b3d1-7018-b2b3-8971f1c2d0fd",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 03:10:53.296702+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09398-b3d1-7018-b2b3-8971f1c2d0fd"
    },
    {
      "id": "chg_01a09398-b3d1-7554-b1ea-f19097590bbf",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "bet_research",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "bet_research"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 03:10:53.296702+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “bet_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09398-b3d1-7554-b1ea-f19097590bbf"
    },
    {
      "id": "chg_01a09398-b3d1-7ee2-aa04-413c3f9b0035",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 03:10:53.296702+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09398-b3d1-7ee2-aa04-413c3f9b0035"
    },
    {
      "id": "chg_01a09398-b3d2-7440-9489-610a767bdf63",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "polymarket_kalshi_spread",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "polymarket_kalshi_spread"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 03:10:53.296702+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09398-b3d2-7440-9489-610a767bdf63"
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    {
      "id": "chg_01a09398-b3d2-7bef-a7a3-916914dcda25",
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      "family": "",
      "subject_kind": "server",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 03:10:53.296702+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a09398-b3d2-7bef-a7a3-916914dcda25"
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    {
      "id": "chg_01a08e72-8381-7523-a475-9ecf243300e7",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 03:11:04.486327+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08e72-8381-7523-a475-9ecf243300e7"
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    {
      "id": "chg_01a08e72-8382-763e-a1ee-dbccfdbd9f29",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
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      "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": "2026-09-11",
      "occurred_at": "2026-09-11 03:11:04.486327+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08e72-8382-763e-a1ee-dbccfdbd9f29"
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    {
      "id": "chg_01a08e72-8382-7ae6-bc43-803527a07221",
      "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"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 03:11:04.486327+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08e72-8382-7ae6-bc43-803527a07221"
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    {
      "id": "chg_01a08e72-8382-7e9c-9672-b9b1eb507e73",
      "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": "2026-09-11",
      "occurred_at": "2026-09-11 03:11:04.486327+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08e72-8382-7e9c-9672-b9b1eb507e73"
    },
    {
      "id": "chg_01a08e72-8383-7362-b8c1-d0ac69ca4ff4",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
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      "materiality": "security",
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      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 03:11:04.486327+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08e72-8383-7362-b8c1-d0ac69ca4ff4"
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    {
      "id": "chg_01a08e72-8383-787a-8972-a6acaacee123",
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      "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": "2026-09-11",
      "occurred_at": "2026-09-11 03:11:04.486327+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08e72-8383-787a-8972-a6acaacee123"
    },
    {
      "id": "chg_01a0894c-3f38-7bf6-b7d2-c2d096466e7a",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 03:11:10.512767+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0894c-3f38-7bf6-b7d2-c2d096466e7a"
    },
    {
      "id": "chg_01a0894c-3f39-7e06-99f1-1701d2de033c",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 03:11:10.512767+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0894c-3f39-7e06-99f1-1701d2de033c"
    },
    {
      "id": "chg_01a0894c-3f3c-783a-8753-4b533896bd37",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 03:11:10.512767+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0894c-3f3c-783a-8753-4b533896bd37"
    },
    {
      "id": "chg_01a0894c-3f3c-7cd3-96e2-326d4b52e46d",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 03:11:10.512767+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0894c-3f3c-7cd3-96e2-326d4b52e46d"
    },
    {
      "id": "chg_01a0894c-3f3d-713a-b62b-edca408c40a3",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 03:11:10.512767+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0894c-3f3d-713a-b62b-edca408c40a3"
    },
    {
      "id": "chg_01a08425-7c04-7ad1-a68e-25bde4a63a7a",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive_unverified",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 03:10:44.102201+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08425-7c04-7ad1-a68e-25bde4a63a7a"
    },
    {
      "id": "chg_01a08425-7c05-7b1e-8d61-50ac123b7ce8",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 03:10:44.102201+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08425-7c05-7b1e-8d61-50ac123b7ce8"
    },
    {
      "id": "chg_01a08425-7c06-7105-9739-1a34a1f03738",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 03:10:44.102201+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08425-7c06-7105-9739-1a34a1f03738"
    },
    {
      "id": "chg_01a08425-7c06-7599-b75e-116d6b88dff1",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 03:10:44.102201+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08425-7c06-7599-b75e-116d6b88dff1"
    },
    {
      "id": "chg_01a08425-7c06-79d7-a118-0ce198fc587d",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 03:10:44.102201+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08425-7c06-79d7-a118-0ce198fc587d"
    },
    {
      "id": "chg_01a08425-7c06-7dbd-9e1b-385126961ebd",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 03:10:44.102201+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a08425-7c06-7dbd-9e1b-385126961ebd"
    },
    {
      "id": "chg_01a07f02-6b6c-70c9-bf14-316b3c3fa126",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.none_destructive_unverified",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 03:14:20.040719+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a07f02-6b6c-70c9-bf14-316b3c3fa126"
    },
    {
      "id": "chg_01a07f02-6b6d-710a-af69-a368a8e2c691",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 03:14:20.040719+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a07f02-6b6d-710a-af69-a368a8e2c691"
    },
    {
      "id": "chg_01a07f02-6b6d-7566-8c4a-95ea3b719753",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 03:14:20.040719+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a07f02-6b6d-7566-8c4a-95ea3b719753"
    },
    {
      "id": "chg_01a07f02-6b6d-7916-929e-131f30e5ae5d",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 03:14:20.040719+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a07f02-6b6d-7916-929e-131f30e5ae5d"
    },
    {
      "id": "chg_01a07f02-6b6d-7caf-9c68-5c0d26f5d817",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 03:14:20.040719+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a07f02-6b6d-7caf-9c68-5c0d26f5d817"
    },
    {
      "id": "chg_01a07f02-6b6e-718c-9747-c60c29d6d356",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 03:14:20.040719+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a07f02-6b6e-718c-9747-c60c29d6d356"
    },
    {
      "id": "chg_01a079db-40b8-7d92-bb74-1e8a73db8896",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_destructive",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 03:13:27.053478+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a079db-40b8-7d92-bb74-1e8a73db8896"
    },
    {
      "id": "chg_01a079db-40ba-72be-8f62-cb2490ce8288",
      "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": "2026-09-07",
      "occurred_at": "2026-09-07 03:13:27.053478+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a079db-40ba-72be-8f62-cb2490ce8288"
    },
    {
      "id": "chg_01a079db-40bc-797c-8ad9-dec488343fce",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.stable",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 03:13:27.053478+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a079db-40bc-797c-8ad9-dec488343fce"
    },
    {
      "id": "chg_01a06f8b-fa92-7c6b-9ea1-56ff3c535d11",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.churn",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "30",
        "added": "0",
        "breaks": "0",
        "removed": "33",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 03:10:39.655496+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06f8b-fa92-7c6b-9ea1-56ff3c535d11"
    },
    {
      "id": "chg_01a06f8b-fa94-71fa-8aba-8ef2655aff4d",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.none_unlisted",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 03:10:39.655496+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06f8b-fa94-71fa-8aba-8ef2655aff4d"
    },
    {
      "id": "chg_01a06f8b-fa94-7874-be24-c0f0a011ae17",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 03:10:39.655496+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06f8b-fa94-7874-be24-c0f0a011ae17"
    },
    {
      "id": "chg_01a06a65-c599-7b7e-9283-9e33b4d2e377",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 03:10:49.679087+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06a65-c599-7b7e-9283-9e33b4d2e377"
    },
    {
      "id": "chg_01a06a65-c59a-7f2b-ad1e-567f1f5218ed",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 03:10:49.679087+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06a65-c59a-7f2b-ad1e-567f1f5218ed"
    },
    {
      "id": "chg_01a06a65-c59b-7773-a0bf-dfb1807b1fc5",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 03:10:49.679087+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06a65-c59b-7773-a0bf-dfb1807b1fc5"
    },
    {
      "id": "chg_01a06a65-c59b-7c63-99f1-b7db63daa868",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 03:10:49.679087+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06a65-c59b-7c63-99f1-b7db63daa868"
    },
    {
      "id": "chg_01a06a65-c59c-7244-93c2-d7e83102a151",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 03:10:49.679087+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06a65-c59c-7244-93c2-d7e83102a151"
    },
    {
      "id": "chg_01a06a65-c59c-779a-b5e6-77880f533594",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "entity_profile",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "entity_profile"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 03:10:49.679087+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “entity_profile” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06a65-c59c-779a-b5e6-77880f533594"
    },
    {
      "id": "chg_01a06a65-c59d-77db-afb6-c9ae32a417da",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 03:10:49.679087+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06a65-c59d-77db-afb6-c9ae32a417da"
    },
    {
      "id": "chg_01a0653f-4987-7aa5-8b51-96428963db39",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 03:10:41.448869+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0653f-4987-7aa5-8b51-96428963db39"
    },
    {
      "id": "chg_01a0653f-4989-7120-85cb-07fa2726d2b6",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 03:10:41.448869+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0653f-4989-7120-85cb-07fa2726d2b6"
    },
    {
      "id": "chg_01a0653f-4989-7673-89f9-319e5276b1a4",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 03:10:41.448869+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0653f-4989-7673-89f9-319e5276b1a4"
    },
    {
      "id": "chg_01a0653f-4989-7c19-88b1-192087c99daa",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 03:10:41.448869+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0653f-4989-7c19-88b1-192087c99daa"
    },
    {
      "id": "chg_01a0653f-498a-7152-b5d4-6acc83957066",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 03:10:41.448869+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0653f-498a-7152-b5d4-6acc83957066"
    },
    {
      "id": "chg_01a0653f-498a-7740-8a93-ce1a2eee6f9b",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 03:10:41.448869+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a0653f-498a-7740-8a93-ce1a2eee6f9b"
    },
    {
      "id": "chg_01a06016-e7ef-747b-af37-77760c4ac360",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 03:08:28.969408+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06016-e7ef-747b-af37-77760c4ac360"
    },
    {
      "id": "chg_01a06016-e7f0-73cc-8ee4-6e593f1dd136",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 03:08:28.969408+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06016-e7f0-73cc-8ee4-6e593f1dd136"
    },
    {
      "id": "chg_01a06016-e7f0-7970-93f9-a3b4acb5c03b",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 03:08:28.969408+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06016-e7f0-7970-93f9-a3b4acb5c03b"
    },
    {
      "id": "chg_01a06016-e7f0-7dd5-bf70-d4cd5aa55eef",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 03:08:28.969408+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06016-e7f0-7dd5-bf70-d4cd5aa55eef"
    },
    {
      "id": "chg_01a06016-e7f1-72ba-9ad3-70884334ff90",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolve_entity",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_entity"
      },
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 03:08:28.969408+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “resolve_entity” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06016-e7f1-72ba-9ad3-70884334ff90"
    },
    {
      "id": "chg_01a06016-e7f1-7c07-b264-8995a5260230",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 03:08:28.969408+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a06016-e7f1-7c07-b264-8995a5260230"
    },
    {
      "id": "chg_01a05af1-0231-70e4-a0c9-40ef87ae3e47",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 03:08:59.275492+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a05af1-0231-70e4-a0c9-40ef87ae3e47"
    },
    {
      "id": "chg_01a05af1-0232-70b0-b4ad-d2ff4d15046f",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 03:08:59.275492+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a05af1-0232-70b0-b4ad-d2ff4d15046f"
    },
    {
      "id": "chg_01a05af1-0232-778a-990f-43b2f813766e",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 03:08:59.275492+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a05af1-0232-778a-990f-43b2f813766e"
    },
    {
      "id": "chg_01a05af1-0232-7cc3-898f-2ba0d6e249b5",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 03:08:59.275492+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a05af1-0232-7cc3-898f-2ba0d6e249b5"
    },
    {
      "id": "chg_01a05af1-0233-727b-843d-9120f1f2b7b8",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 03:08:59.275492+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a05af1-0233-727b-843d-9120f1f2b7b8"
    },
    {
      "id": "chg_01a05af1-0233-7773-8770-42f002a2769f",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 03:08:59.275492+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a05af1-0233-7773-8770-42f002a2769f"
    },
    {
      "id": "chg_01a055ca-659f-7b9a-bad3-2c081375b7a8",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 03:08:42.684094+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a055ca-659f-7b9a-bad3-2c081375b7a8"
    },
    {
      "id": "chg_01a055ca-65a0-7c47-a250-579bce1effc1",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 03:08:42.684094+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a055ca-65a0-7c47-a250-579bce1effc1"
    },
    {
      "id": "chg_01a055ca-65a1-732c-b8e9-2d96ddab6351",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 03:08:42.684094+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a055ca-65a1-732c-b8e9-2d96ddab6351"
    },
    {
      "id": "chg_01a055ca-65a1-783a-ac7a-50f7c7f1385a",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 03:08:42.684094+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a055ca-65a1-783a-ac7a-50f7c7f1385a"
    },
    {
      "id": "chg_01a055ca-65a1-7c95-9a59-d86628acfe5a",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 03:08:42.684094+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a055ca-65a1-7c95-9a59-d86628acfe5a"
    },
    {
      "id": "chg_01a050a3-f8e2-7e0d-b1f6-daf33c488bc3",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 03:08:38.407591+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a050a3-f8e2-7e0d-b1f6-daf33c488bc3"
    },
    {
      "id": "chg_01a050a3-f8e5-7a62-8d18-f8ca81d81b35",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 03:08:38.407591+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a050a3-f8e5-7a62-8d18-f8ca81d81b35"
    },
    {
      "id": "chg_01a050a3-f8e5-7ef0-91de-23c16a5edc91",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 03:08:38.407591+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a050a3-f8e5-7ef0-91de-23c16a5edc91"
    },
    {
      "id": "chg_01a050a3-f8e6-7549-a411-f86024f061e7",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 03:08:38.407591+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a050a3-f8e6-7549-a411-f86024f061e7"
    },
    {
      "id": "chg_01a050a3-f8e7-7823-b029-7bfdabf4809b",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 03:08:38.407591+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a050a3-f8e7-7823-b029-7bfdabf4809b"
    },
    {
      "id": "chg_01a04b7d-85c4-7ea9-8501-82c9cd65d31e",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 03:08:32.486492+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04b7d-85c4-7ea9-8501-82c9cd65d31e"
    },
    {
      "id": "chg_01a04b7d-85c6-727e-a2c2-4d3d5f6aac97",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 03:08:32.486492+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04b7d-85c6-727e-a2c2-4d3d5f6aac97"
    },
    {
      "id": "chg_01a04b7d-85c6-7754-b66d-67b75bc024cd",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 03:08:32.486492+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04b7d-85c6-7754-b66d-67b75bc024cd"
    },
    {
      "id": "chg_01a04b7d-85c6-7b33-a7b3-6d97044dbd0a",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 03:08:32.486492+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04b7d-85c6-7b33-a7b3-6d97044dbd0a"
    },
    {
      "id": "chg_01a04b7d-85c6-7edc-86b7-672f602c5fbe",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 03:08:32.486492+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04b7d-85c6-7edc-86b7-672f602c5fbe"
    },
    {
      "id": "chg_01a04130-2fcf-7590-8ce1-b50b3a2f81b9",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 03:07:52.057171+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04130-2fcf-7590-8ce1-b50b3a2f81b9"
    },
    {
      "id": "chg_01a04130-2fd3-7aed-a466-af6da8d77029",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 03:07:52.057171+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04130-2fd3-7aed-a466-af6da8d77029"
    },
    {
      "id": "chg_01a04130-2fd4-752f-a08f-b0dc6f636054",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 03:07:52.057171+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04130-2fd4-752f-a08f-b0dc6f636054"
    },
    {
      "id": "chg_01a04130-2fd4-79f8-ad5b-94069a911817",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 03:07:52.057171+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04130-2fd4-79f8-ad5b-94069a911817"
    },
    {
      "id": "chg_01a04130-2fd5-7844-9fa4-416cd1182b80",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 03:07:52.057171+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a04130-2fd5-7844-9fa4-416cd1182b80"
    },
    {
      "id": "chg_01a036e3-209c-7899-8c56-b9596d646407",
      "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": "2026-08-25",
      "occurred_at": "2026-08-25 03:07:29.7081+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a036e3-209c-7899-8c56-b9596d646407"
    },
    {
      "id": "chg_01a031bb-2434-76a8-8633-d3342374a720",
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      "materiality": "security",
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      "detail": {
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      "occurred_at": "2026-08-24 03:05:43.159672+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a031bb-2434-76a8-8633-d3342374a720"
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    {
      "id": "chg_01a031bb-2435-739a-8116-82cf38dcb0fe",
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      "materiality": "security",
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      "occurred_at": "2026-08-24 03:05:43.159672+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a031bb-2435-739a-8116-82cf38dcb0fe"
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    {
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      "materiality": "security",
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      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 03:05:43.159672+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a031bb-2435-7c10-82c0-6fb097fbd2bb"
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    {
      "id": "chg_01a031bb-2436-73b4-aaec-469d8507d7c7",
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      "occurred_at": "2026-08-24 03:05:43.159672+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a031bb-2436-73b4-aaec-469d8507d7c7"
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      "occurred_at": "2026-08-24 03:05:43.159672+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a031bb-2436-79cd-8d00-0112ce0dc4ed"
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    {
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      "materiality": "security",
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      "occurred_at": "2026-08-23 03:05:43.532169+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a02c94-c9a0-7035-92a3-3af34628dfce"
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      "occurred_at": "2026-08-23 03:05:43.532169+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a02c94-c9a0-7cd1-a816-9fd289abe026"
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    {
      "id": "chg_01a02c94-c9a1-71a0-a762-0a0ade273b9a",
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      "materiality": "security",
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      "occurred_at": "2026-08-23 03:05:43.532169+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-cactus/cactus-mcp#chg-chg_01a02c94-c9a1-71a0-a762-0a0ade273b9a"
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