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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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1a918-8ce9-7184-a76f-05d2a351a5f7"
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      "occurred_at": "2026-11-05 00:25:20.821283+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1a918-8ce5-7dfa-ad78-adc02ded9684"
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    {
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      "occurred_at": "2026-11-05 00:25:20.821283+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1a918-8ce8-7852-a55f-f06996de05d4"
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    {
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      "occurred_at": "2026-11-05 00:25:20.821283+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1a918-8ce8-70ce-b162-e75b20ef2d0d"
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    {
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      "occurred_at": "2026-11-05 00:25:20.821283+00",
      "observed_since": "2026-11-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1a918-8ce7-76cb-b157-bf4ee6f943aa"
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      "occurred_at": "2026-11-03 00:39:32.006082+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a19ed8-d1e8-7440-a520-7f3d899e50f2"
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    {
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      "occurred_at": "2026-11-03 00:39:32.006082+00",
      "observed_since": "2026-11-02",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a19ed8-d1e6-7476-a7e3-7afc95963a89"
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      "detail": {
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      "occurred_at": "2026-11-03 00:39:32.006082+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a19ed8-d1e7-76e8-b5fd-8f4e910d18fb"
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    {
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 00:39:32.006082+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a19ed8-d1e7-7d93-8f3d-aa44e4d07749"
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    {
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      "materiality": "security",
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      "detail": {
        "tool": "deep_research"
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      "occurred_at": "2026-11-03 00:39:32.006082+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a19ed8-d1e8-7b90-ab16-145af6ca1bba"
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    {
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      "occurred_on": "2026-11-03",
      "occurred_at": "2026-11-03 00:39:32.006082+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a19ed8-d1e9-7288-bee0-6bb3fe76db7c"
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    {
      "id": "chg_01a199ac-711e-7988-a47d-89ade438c747",
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      "family": "auth-oauth",
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      "from_code": "auth.rfc9728_invoke",
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      "materiality": "critical",
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      "detail": {
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      "occurred_at": "2026-11-02 00:32:57.566305+00",
      "observed_since": "2026-11-01",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a199ac-711e-7988-a47d-89ade438c747"
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    {
      "id": "chg_01a199ac-7125-7d30-9c56-65b38ed7580a",
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      "occurred_at": "2026-11-02 00:32:57.566305+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a199ac-7125-7d30-9c56-65b38ed7580a"
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    {
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      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 00:32:57.566305+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a199ac-7126-7383-aad8-43f5f4401886"
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    {
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      "materiality": "security",
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      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 00:32:57.566305+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a199ac-7126-7709-9006-8f0b3ebb3136"
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    {
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      "materiality": "security",
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      "occurred_on": "2026-11-02",
      "occurred_at": "2026-11-02 00:32:57.566305+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a199ac-7124-7a15-a976-93c269906d1c"
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    {
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      "materiality": "security",
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      "occurred_at": "2026-11-02 00:32:57.566305+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a199ac-7123-755b-a52f-6b7a07d0b4fd"
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    {
      "id": "chg_01a19489-5953-72bb-80dd-bde240f55e4c",
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      "from_code": "auth.none_destructive",
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      "occurred_at": "2026-11-01 00:36:31.669246+00",
      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a19489-5953-72bb-80dd-bde240f55e4c"
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    {
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      "subject_kind": "server",
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      "materiality": "security",
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      "occurred_at": "2026-10-31 00:26:30.184204+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18f59-cfdd-7594-bb32-478d84858024"
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    {
      "id": "chg_01a18f59-cfd9-76e1-9007-3888d0db22b1",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 00:26:30.184204+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18f59-cfd9-76e1-9007-3888d0db22b1"
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    {
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      "subject_kind": "tool",
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 00:26:30.184204+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18f59-cfda-7b7e-9ef4-56478b789aad"
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    {
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      "subject_kind": "tool",
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      "materiality": "security",
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        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 00:26:30.184204+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18f59-cfdb-7184-820a-ca5bb21d41c1"
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    {
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      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 00:26:30.184204+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18f59-cfdd-701d-8b13-d978c327c53c"
    },
    {
      "id": "chg_01a18a3a-1735-75b0-a826-94adc7718bf3",
      "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": "2026-10-30",
      "occurred_at": "2026-10-30 00:33:45.235435+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18a3a-1735-75b0-a826-94adc7718bf3"
    },
    {
      "id": "chg_01a18a3a-1736-7652-9e7b-4bd304c85ad7",
      "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 00:33:45.235435+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18a3a-1736-7652-9e7b-4bd304c85ad7"
    },
    {
      "id": "chg_01a18a3a-1736-7bcf-83d4-0949951ccd9e",
      "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 00:33:45.235435+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18a3a-1736-7bcf-83d4-0949951ccd9e"
    },
    {
      "id": "chg_01a18a3a-1738-70c4-8df0-282ad11d130f",
      "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 00:33:45.235435+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18a3a-1738-70c4-8df0-282ad11d130f"
    },
    {
      "id": "chg_01a18a3a-1737-7104-a544-df1782190746",
      "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 00:33:45.235435+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18a3a-1737-7104-a544-df1782190746"
    },
    {
      "id": "chg_01a18a3a-1737-75b7-b64a-b3ae7c23faed",
      "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 00:33:45.235435+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18a3a-1737-75b7-b64a-b3ae7c23faed"
    },
    {
      "id": "chg_01a18a3a-1737-7b55-92e2-87713573dac1",
      "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 00:33:45.235435+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a18a3a-1737-7b55-92e2-87713573dac1"
    },
    {
      "id": "chg_01a184fe-db67-7b45-a635-88b61ebb7978",
      "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 00:10:57.177382+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a184fe-db67-7b45-a635-88b61ebb7978"
    },
    {
      "id": "chg_01a184fe-db68-72f1-83b9-e6612e612048",
      "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 00:10:57.177382+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a184fe-db68-72f1-83b9-e6612e612048"
    },
    {
      "id": "chg_01a184fe-db68-7d18-a6cd-cfdf67e386af",
      "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 00:10:57.177382+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a184fe-db68-7d18-a6cd-cfdf67e386af"
    },
    {
      "id": "chg_01a184fe-db63-76a8-ba51-633c96f99865",
      "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": "2026-10-29",
      "occurred_at": "2026-10-29 00:10:57.177382+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a184fe-db63-76a8-ba51-633c96f99865"
    },
    {
      "id": "chg_01a184fe-db6c-7b16-a8f3-b3ea70817332",
      "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 00:10:57.177382+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a184fe-db6c-7b16-a8f3-b3ea70817332"
    },
    {
      "id": "chg_01a184fe-db66-7e65-a8af-376fb99f6b60",
      "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 00:10:57.177382+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a184fe-db66-7e65-a8af-376fb99f6b60"
    },
    {
      "id": "chg_01a184fe-db6a-7d98-a5a2-a5ceae672e2e",
      "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 00:10:57.177382+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a184fe-db6a-7d98-a5a2-a5ceae672e2e"
    },
    {
      "id": "chg_01a17fdc-c27d-7b46-8dbf-d69679248b96",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 00:15:36.532152+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17fdc-c27d-7b46-8dbf-d69679248b96"
    },
    {
      "id": "chg_01a17fdc-c27f-75c2-bb57-58184fac5f29",
      "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 00:15:36.532152+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17fdc-c27f-75c2-bb57-58184fac5f29"
    },
    {
      "id": "chg_01a17fdc-c27f-7e5d-999f-d38fba384541",
      "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 00:15:36.532152+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17fdc-c27f-7e5d-999f-d38fba384541"
    },
    {
      "id": "chg_01a17fdc-c280-75ab-b205-94780d621341",
      "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 00:15:36.532152+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17fdc-c280-75ab-b205-94780d621341"
    },
    {
      "id": "chg_01a17fdc-c280-7d0e-bdea-7c9867ff03c7",
      "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 00:15:36.532152+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17fdc-c280-7d0e-bdea-7c9867ff03c7"
    },
    {
      "id": "chg_01a17fdc-c281-7a9c-bd45-d4b83c266f75",
      "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 00:15:36.532152+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17fdc-c281-7a9c-bd45-d4b83c266f75"
    },
    {
      "id": "chg_01a17fdc-c285-7bf4-86a3-d6c9df5215f5",
      "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 00:15:36.532152+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17fdc-c285-7bf4-86a3-d6c9df5215f5"
    },
    {
      "id": "chg_01a17ab8-7eb0-7206-a5d2-30ca719415e6",
      "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 00:17:53.79169+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17ab8-7eb0-7206-a5d2-30ca719415e6"
    },
    {
      "id": "chg_01a17ab8-7eaf-7a8a-814b-140e96430910",
      "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 00:17:53.79169+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17ab8-7eaf-7a8a-814b-140e96430910"
    },
    {
      "id": "chg_01a17ab8-7eaf-723f-a54c-071cf36d5ba0",
      "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 00:17:53.79169+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17ab8-7eaf-723f-a54c-071cf36d5ba0"
    },
    {
      "id": "chg_01a17ab8-7eae-7830-8f11-11174eebc22c",
      "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 00:17:53.79169+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17ab8-7eae-7830-8f11-11174eebc22c"
    },
    {
      "id": "chg_01a17ab8-7ead-7d05-aa32-41ea73c884c8",
      "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 00:17:53.79169+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-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17ab8-7ead-7d05-aa32-41ea73c884c8"
    },
    {
      "id": "chg_01a17ab8-7eac-7280-b615-4d639a5f8569",
      "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": "2026-10-27",
      "occurred_at": "2026-10-27 00:17:53.79169+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17ab8-7eac-7280-b615-4d639a5f8569"
    },
    {
      "id": "chg_01a17598-549b-7b29-9e5f-6de5ddf860cb",
      "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": "2026-10-26",
      "occurred_at": "2026-10-26 00:24:39.808729+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17598-549b-7b29-9e5f-6de5ddf860cb"
    },
    {
      "id": "chg_01a17598-5499-7c31-aa0d-7ba2899d606c",
      "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": "2026-10-26",
      "occurred_at": "2026-10-26 00:24:39.808729+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17598-5499-7c31-aa0d-7ba2899d606c"
    },
    {
      "id": "chg_01a17598-549b-708c-8bf7-740d7bcf8dba",
      "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": "2026-10-26",
      "occurred_at": "2026-10-26 00:24:39.808729+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17598-549b-708c-8bf7-740d7bcf8dba"
    },
    {
      "id": "chg_01a17598-549b-7657-bbed-d0edf49568af",
      "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": "2026-10-26",
      "occurred_at": "2026-10-26 00:24:39.808729+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17598-549b-7657-bbed-d0edf49568af"
    },
    {
      "id": "chg_01a17598-549c-710f-95b8-b81c037e5ade",
      "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": "2026-10-26",
      "occurred_at": "2026-10-26 00:24:39.808729+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a17598-549c-710f-95b8-b81c037e5ade"
    },
    {
      "id": "chg_01a1706e-7762-72b6-a873-dd586d526b1a",
      "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": "2026-10-25",
      "occurred_at": "2026-10-25 00:20:50.113638+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1706e-7762-72b6-a873-dd586d526b1a"
    },
    {
      "id": "chg_01a1706e-7762-7825-86d5-584099ec4441",
      "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": "2026-10-25",
      "occurred_at": "2026-10-25 00:20:50.113638+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1706e-7762-7825-86d5-584099ec4441"
    },
    {
      "id": "chg_01a1706e-7762-7de8-8125-e44531b91e9d",
      "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": "2026-10-25",
      "occurred_at": "2026-10-25 00:20:50.113638+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1706e-7762-7de8-8125-e44531b91e9d"
    },
    {
      "id": "chg_01a1706e-7763-758a-beeb-734e9ed7487c",
      "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": "2026-10-25",
      "occurred_at": "2026-10-25 00:20:50.113638+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1706e-7763-758a-beeb-734e9ed7487c"
    },
    {
      "id": "chg_01a1706e-7764-750d-8f63-106252ee9d13",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "prediction_calibration",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "prediction_calibration"
      },
      "occurred_on": "2026-10-25",
      "occurred_at": "2026-10-25 00:20:50.113638+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “prediction_calibration” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1706e-7764-750d-8f63-106252ee9d13"
    },
    {
      "id": "chg_01a1706e-7764-79e3-b780-0072394879db",
      "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": "2026-10-25",
      "occurred_at": "2026-10-25 00:20:50.113638+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1706e-7764-79e3-b780-0072394879db"
    },
    {
      "id": "chg_01a1706e-775f-7a39-a92a-64d67de37030",
      "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": "2026-10-25",
      "occurred_at": "2026-10-25 00:20:50.113638+00",
      "observed_since": "2026-10-24",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1706e-775f-7a39-a92a-64d67de37030"
    },
    {
      "id": "chg_01a1706e-7760-781a-84aa-359b44cace9c",
      "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": "2026-10-25",
      "occurred_at": "2026-10-25 00:20:50.113638+00",
      "observed_since": "2026-10-24",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1706e-7760-781a-84aa-359b44cace9c"
    },
    {
      "id": "chg_01a16b4a-756e-721b-b9f2-bfd3b683bf33",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_unlisted",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 00:23:24.249269+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a16b4a-756e-721b-b9f2-bfd3b683bf33"
    },
    {
      "id": "chg_01a16b4a-756f-7836-b884-63b6959e3875",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.07",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "tools_unlisted"
      },
      "occurred_on": "2026-10-24",
      "occurred_at": "2026-10-24 00:23:24.249269+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Stability (0.07 → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a16b4a-756f-7836-b884-63b6959e3875"
    },
    {
      "id": "chg_01a16b4a-7570-73e6-be56-67c4604f88a1",
      "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": "2026-10-24",
      "occurred_at": "2026-10-24 00:23:24.249269+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a16b4a-7570-73e6-be56-67c4604f88a1"
    },
    {
      "id": "chg_01a1661a-4dc0-74fa-aaa8-31e3a802bc6d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolution_diff",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolution_diff"
      },
      "occurred_on": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Tool “resolution_diff” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dc0-74fa-aaa8-31e3a802bc6d"
    },
    {
      "id": "chg_01a1661a-4dc1-72b9-ae48-d7e339193ba7",
      "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": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dc1-72b9-ae48-d7e339193ba7"
    },
    {
      "id": "chg_01a1661a-4dbf-722c-8b9d-b1e213e2bd7e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolution_audit",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolution_audit"
      },
      "occurred_on": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Tool “resolution_audit” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dbf-722c-8b9d-b1e213e2bd7e"
    },
    {
      "id": "chg_01a1661a-4dbe-7baa-86c0-9b20b1caec0d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "polymarket_fill_risk",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "polymarket_fill_risk"
      },
      "occurred_on": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Tool “polymarket_fill_risk” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dbe-7baa-86c0-9b20b1caec0d"
    },
    {
      "id": "chg_01a1661a-4dbd-7e62-acba-d3427d25a684",
      "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": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dbd-7e62-acba-d3427d25a684"
    },
    {
      "id": "chg_01a1661a-4dbd-7840-8622-6961b0f82287",
      "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": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dbd-7840-8622-6961b0f82287"
    },
    {
      "id": "chg_01a1661a-4dbd-715e-ba70-ed5e96a8589d",
      "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": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dbd-715e-ba70-ed5e96a8589d"
    },
    {
      "id": "chg_01a1661a-4dbc-7a37-9732-52aa05ea6d11",
      "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": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dbc-7a37-9732-52aa05ea6d11"
    },
    {
      "id": "chg_01a1661a-4dbc-7398-9a48-09554b33490d",
      "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": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "First check of Authorization (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dbc-7398-9a48-09554b33490d"
    },
    {
      "id": "chg_01a1661a-4dbb-7268-8bbd-39b77ea281c4",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-23",
      "occurred_at": "2026-10-23 00:12:42.272587+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a1661a-4dbb-7268-8bbd-39b77ea281c4"
    },
    {
      "id": "chg_01a160ea-57dc-78fb-b1c3-248d39a289ae",
      "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": "2026-10-22",
      "occurred_at": "2026-10-22 00:02:13.015242+00",
      "observed_since": "2026-10-21",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a160ea-57dc-78fb-b1c3-248d39a289ae"
    },
    {
      "id": "chg_01a160ea-57da-7be4-b787-e1deac54c4f8",
      "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": "2026-10-22",
      "occurred_at": "2026-10-22 00:02:13.015242+00",
      "observed_since": "2026-10-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a160ea-57da-7be4-b787-e1deac54c4f8"
    },
    {
      "id": "chg_01a160ea-57db-7331-8327-f68d05fb013e",
      "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": "2026-10-22",
      "occurred_at": "2026-10-22 00:02:13.015242+00",
      "observed_since": "2026-10-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a160ea-57db-7331-8327-f68d05fb013e"
    },
    {
      "id": "chg_01a160ea-57db-7b57-b347-35947ac8dca7",
      "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": "2026-10-22",
      "occurred_at": "2026-10-22 00:02:13.015242+00",
      "observed_since": "2026-10-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a160ea-57db-7b57-b347-35947ac8dca7"
    },
    {
      "id": "chg_01a160ea-57dc-71d9-8d06-9b12ad3f334a",
      "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": "2026-10-22",
      "occurred_at": "2026-10-22 00:02:13.015242+00",
      "observed_since": "2026-10-21",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a160ea-57dc-71d9-8d06-9b12ad3f334a"
    },
    {
      "id": "chg_01a15bc2-d616-7ae5-94ae-b2f1a942de4c",
      "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": "2026-10-21",
      "occurred_at": "2026-10-21 00:00:57.8539+00",
      "observed_since": "2026-10-20",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a15bc2-d616-7ae5-94ae-b2f1a942de4c"
    },
    {
      "id": "chg_01a15bc2-d618-7ea5-b24b-6966fac1e313",
      "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": "2026-10-21",
      "occurred_at": "2026-10-21 00:00:57.8539+00",
      "observed_since": "2026-10-20",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a15bc2-d618-7ea5-b24b-6966fac1e313"
    },
    {
      "id": "chg_01a15bc2-d619-7994-b1bc-8835f8fa8150",
      "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": "2026-10-21",
      "occurred_at": "2026-10-21 00:00:57.8539+00",
      "observed_since": "2026-10-20",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nist-fluid-properties/nist-fluid-properties-mcp#chg-chg_01a15bc2-d619-7994-b1bc-8835f8fa8150"
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      "date": "2026-11-05",
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      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
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    {
      "date": "2026-11-03",
      "total": 79,
      "delta": 15,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
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    {
      "date": "2026-11-02",
      "total": 64,
      "delta": -14,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
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    {
      "date": "2026-11-01",
      "total": 78,
      "delta": 15,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
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    {
      "date": "2026-10-31",
      "total": 63,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
    },
    {
      "date": "2026-10-30",
      "total": 63,
      "delta": -14,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
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    {
      "date": "2026-10-29",
      "total": 77,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-10-28",
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      "tracked": true,
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}