{
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  "component": "epa-regulations-mcp",
  "generated_at": "2026-09-21T20:20:58.597Z",
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      "summary": "Authorization (fail → unverified)",
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      "occurred_at": "2026-09-11 07:00:11.31789+00",
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      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a08f44-4679-7783-9455-43e223f69898"
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      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a08f44-4679-7c50-a059-cff5f3add08d"
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      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a08f44-467a-7187-b756-4e5f6aa3edd4"
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      "occurred_at": "2026-09-11 07:00:11.31789+00",
      "observed_since": "2026-09-10",
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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-epa-regulations/epa-regulations-mcp#chg-chg_01a08f44-467a-768a-bffb-9d2baa462562"
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      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a08a1d-f44c-71c0-8102-9ecd73c9e72a"
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      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a08a1d-f44c-78c1-ae54-003f6d815acb"
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    {
      "id": "chg_01a084f7-95e1-7cfb-b0d4-d3a80cc27d42",
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      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a084f7-95e1-7cfb-b0d4-d3a80cc27d42"
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      "from_code": "auth.none_destructive",
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      "summary": "Authorization (fail → unverified)",
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      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a07fd1-ff6e-765a-975d-b637db6dfe0b"
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      "observed_since": "2026-09-07",
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      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a07fd1-ff70-70dd-8618-88f992b77c5a"
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      "occurred_at": "2026-09-08 07:01:03.681529+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-epa-regulations/epa-regulations-mcp#chg-chg_01a07fd1-ff71-7b57-b717-e69489835869"
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      "materiality": "security",
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      "occurred_at": "2026-09-08 07:01:03.681529+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-epa-regulations/epa-regulations-mcp#chg-chg_01a07fd1-ff72-7049-b38e-d20f9110886c"
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      "occurred_at": "2026-09-08 07:01:03.681529+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-epa-regulations/epa-regulations-mcp#chg-chg_01a07fd1-ff72-74cb-8509-180339725227"
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      "from_code": "auth.none_unlisted",
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      "from_value": "unverified",
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      "occurred_at": "2026-09-07 07:00:59.36111+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a07aab-9229-76cf-a00f-b3713b985890"
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    {
      "id": "chg_01a07aab-922a-7ba5-9f66-eccdb7af78dc",
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      "from_code": "toolsafety.unreachable",
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      "occurred_at": "2026-09-07 07:00:59.36111+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a07aab-922a-7ba5-9f66-eccdb7af78dc"
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      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 07:00:59.36111+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a07aab-922b-729b-80ae-14f2a34850b8"
    },
    {
      "id": "chg_01a07584-93f1-7c31-b5f7-b5ebc924ec07",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 07:00:17.943306+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a07584-93f1-7c31-b5f7-b5ebc924ec07"
    },
    {
      "id": "chg_01a07584-93f2-7ef3-8382-4a64157e9dc9",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 07:00:17.943306+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a07584-93f2-7ef3-8382-4a64157e9dc9"
    },
    {
      "id": "chg_01a07584-93f3-7991-a1b3-a30353445888",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 07:00:17.943306+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a07584-93f3-7991-a1b3-a30353445888"
    },
    {
      "id": "chg_01a0705e-4c01-7296-a349-6a4a337421c3",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 07:00:22.704564+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a0705e-4c01-7296-a349-6a4a337421c3"
    },
    {
      "id": "chg_01a0705e-4c02-7c83-8fab-4d73e4d70cf3",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 07:00:22.704564+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a0705e-4c02-7c83-8fab-4d73e4d70cf3"
    },
    {
      "id": "chg_01a0705e-4c03-7304-9369-a729e88a2100",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 07:00:22.704564+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a0705e-4c03-7304-9369-a729e88a2100"
    },
    {
      "id": "chg_01a0705e-4c03-7860-bc77-c2a790a3a279",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 07:00:22.704564+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a0705e-4c03-7860-bc77-c2a790a3a279"
    },
    {
      "id": "chg_01a0705e-4c03-7c93-9968-3771a70305b1",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 07:00:22.704564+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a0705e-4c03-7c93-9968-3771a70305b1"
    },
    {
      "id": "chg_01a06b37-f19d-7a32-af3a-4b0a9cf20af9",
      "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 07:00:23.151489+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06b37-f19d-7a32-af3a-4b0a9cf20af9"
    },
    {
      "id": "chg_01a06b37-f1a0-7c75-a4de-be6085681ef5",
      "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 07:00:23.151489+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06b37-f1a0-7c75-a4de-be6085681ef5"
    },
    {
      "id": "chg_01a06b37-f1a3-7116-b1a3-0b2ec34af706",
      "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 07:00:23.151489+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06b37-f1a3-7116-b1a3-0b2ec34af706"
    },
    {
      "id": "chg_01a06b37-f1a3-7b18-a064-c705fec7921d",
      "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 07:00:23.151489+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06b37-f1a3-7b18-a064-c705fec7921d"
    },
    {
      "id": "chg_01a06b37-f1a6-7d50-981e-0e063f92b537",
      "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 07:00:23.151489+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06b37-f1a6-7d50-981e-0e063f92b537"
    },
    {
      "id": "chg_01a06b37-f1ad-7f38-a1de-5327f3d8a5c2",
      "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 07:00:23.151489+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06b37-f1ad-7f38-a1de-5327f3d8a5c2"
    },
    {
      "id": "chg_01a06611-6a58-7c78-91ee-4cfbefef2b75",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 07:00:12.344516+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a06611-6a58-7c78-91ee-4cfbefef2b75"
    },
    {
      "id": "chg_01a06611-6a5b-7357-ae73-e6385048b30c",
      "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 07:00:12.344516+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06611-6a5b-7357-ae73-e6385048b30c"
    },
    {
      "id": "chg_01a06611-6a5b-7920-b7bc-a58becccebb7",
      "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 07:00:12.344516+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06611-6a5b-7920-b7bc-a58becccebb7"
    },
    {
      "id": "chg_01a06611-6a5b-7dc9-9add-9a4adbf26ed4",
      "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 07:00:12.344516+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06611-6a5b-7dc9-9add-9a4adbf26ed4"
    },
    {
      "id": "chg_01a06611-6a5c-72cd-9605-349c0fcd8dfd",
      "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 07:00:12.344516+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06611-6a5c-72cd-9605-349c0fcd8dfd"
    },
    {
      "id": "chg_01a06611-6a5c-7710-b688-7d93f9be4f62",
      "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 07:00:12.344516+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06611-6a5c-7710-b688-7d93f9be4f62"
    },
    {
      "id": "chg_01a06611-6a5c-7be7-b5c4-df6d5a46699c",
      "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 07:00:12.344516+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-epa-regulations/epa-regulations-mcp#chg-chg_01a06611-6a5c-7be7-b5c4-df6d5a46699c"
    },
    {
      "id": "chg_01a060eb-11f0-7e25-adac-957ba920dfdd",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 07:00:13.248867+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a060eb-11f0-7e25-adac-957ba920dfdd"
    },
    {
      "id": "chg_01a060eb-11f3-77dd-84f1-42802876e04e",
      "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 07:00:13.248867+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-epa-regulations/epa-regulations-mcp#chg-chg_01a060eb-11f3-77dd-84f1-42802876e04e"
    },
    {
      "id": "chg_01a060eb-11f4-71b4-8af4-63ba364b0965",
      "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 07:00:13.248867+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-epa-regulations/epa-regulations-mcp#chg-chg_01a060eb-11f4-71b4-8af4-63ba364b0965"
    },
    {
      "id": "chg_01a060eb-11f4-7820-912f-32c68832b6a4",
      "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 07:00:13.248867+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-epa-regulations/epa-regulations-mcp#chg-chg_01a060eb-11f4-7820-912f-32c68832b6a4"
    },
    {
      "id": "chg_01a060eb-11f4-7dbd-ab7c-b485e37f9a4e",
      "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 07:00:13.248867+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-epa-regulations/epa-regulations-mcp#chg-chg_01a060eb-11f4-7dbd-ab7c-b485e37f9a4e"
    },
    {
      "id": "chg_01a060eb-11f5-746e-a038-733f01354fd3",
      "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 07:00:13.248867+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-epa-regulations/epa-regulations-mcp#chg-chg_01a060eb-11f5-746e-a038-733f01354fd3"
    },
    {
      "id": "chg_01a060eb-11f5-7e81-9f28-e7b001934bef",
      "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 07:00:13.248867+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-epa-regulations/epa-regulations-mcp#chg-chg_01a060eb-11f5-7e81-9f28-e7b001934bef"
    },
    {
      "id": "chg_01a05bc4-b0b6-70e2-8e0b-71b8b8612157",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 07:00:12.030593+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a05bc4-b0b6-70e2-8e0b-71b8b8612157"
    },
    {
      "id": "chg_01a05bc4-b0b7-7a9f-befa-6561654098ce",
      "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 07:00:12.030593+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-epa-regulations/epa-regulations-mcp#chg-chg_01a05bc4-b0b7-7a9f-befa-6561654098ce"
    },
    {
      "id": "chg_01a05bc4-b0b8-71d6-aafa-9ae355699b18",
      "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 07:00:12.030593+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-epa-regulations/epa-regulations-mcp#chg-chg_01a05bc4-b0b8-71d6-aafa-9ae355699b18"
    },
    {
      "id": "chg_01a05bc4-b0b8-779d-913c-f52174187eb7",
      "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 07:00:12.030593+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-epa-regulations/epa-regulations-mcp#chg-chg_01a05bc4-b0b8-779d-913c-f52174187eb7"
    },
    {
      "id": "chg_01a05bc4-b0b8-7ce1-9c94-113757098bec",
      "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 07:00:12.030593+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-epa-regulations/epa-regulations-mcp#chg-chg_01a05bc4-b0b8-7ce1-9c94-113757098bec"
    },
    {
      "id": "chg_01a05bc4-b0b9-747b-ba15-84971b8e24a3",
      "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 07:00:12.030593+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-epa-regulations/epa-regulations-mcp#chg-chg_01a05bc4-b0b9-747b-ba15-84971b8e24a3"
    },
    {
      "id": "chg_01a0569e-57fa-7a89-ab08-e6e237e382f3",
      "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 07:00:12.6698+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-epa-regulations/epa-regulations-mcp#chg-chg_01a0569e-57fa-7a89-ab08-e6e237e382f3"
    },
    {
      "id": "chg_01a0569e-57fc-7662-a7c0-3de614e84944",
      "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 07:00:12.6698+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-epa-regulations/epa-regulations-mcp#chg-chg_01a0569e-57fc-7662-a7c0-3de614e84944"
    },
    {
      "id": "chg_01a0569e-57fc-7f35-b48a-be6e484ca10e",
      "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 07:00:12.6698+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-epa-regulations/epa-regulations-mcp#chg-chg_01a0569e-57fc-7f35-b48a-be6e484ca10e"
    },
    {
      "id": "chg_01a0569e-57fd-762e-8526-d1c47464297c",
      "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 07:00:12.6698+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-epa-regulations/epa-regulations-mcp#chg-chg_01a0569e-57fd-762e-8526-d1c47464297c"
    },
    {
      "id": "chg_01a0569e-57fd-7cac-81ec-70a871f1c604",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 07:00:12.6698+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a0569e-57fd-7cac-81ec-70a871f1c604"
    },
    {
      "id": "chg_01a0569e-57fe-73b7-ac28-201e4ba6dfca",
      "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 07:00:12.6698+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-epa-regulations/epa-regulations-mcp#chg-chg_01a0569e-57fe-73b7-ac28-201e4ba6dfca"
    },
    {
      "id": "chg_01a04c51-a33f-7557-8a14-5e294dcc6b8d",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 07:00:13.681515+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a04c51-a33f-7557-8a14-5e294dcc6b8d"
    },
    {
      "id": "chg_01a04c51-a340-7843-beaa-f305975451a3",
      "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 07:00:13.681515+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04c51-a340-7843-beaa-f305975451a3"
    },
    {
      "id": "chg_01a04c51-a340-7e85-9ab2-8d4bc00adbff",
      "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 07:00:13.681515+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04c51-a340-7e85-9ab2-8d4bc00adbff"
    },
    {
      "id": "chg_01a04c51-a341-74fd-ad45-f822e8cb07bc",
      "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 07:00:13.681515+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04c51-a341-74fd-ad45-f822e8cb07bc"
    },
    {
      "id": "chg_01a04c51-a341-7a00-b731-c97a2c939d7f",
      "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 07:00:13.681515+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04c51-a341-7a00-b731-c97a2c939d7f"
    },
    {
      "id": "chg_01a04c51-a341-7eec-b44d-e55bb1abaddd",
      "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 07:00:13.681515+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04c51-a341-7eec-b44d-e55bb1abaddd"
    },
    {
      "id": "chg_01a04204-efcc-721f-bbd1-7166272192d8",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 07:00:14.786193+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a04204-efcc-721f-bbd1-7166272192d8"
    },
    {
      "id": "chg_01a04204-efd0-7629-90f1-f993fd855cfc",
      "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 07:00:14.786193+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04204-efd0-7629-90f1-f993fd855cfc"
    },
    {
      "id": "chg_01a04204-efd1-77d3-8362-6cec2fa1a104",
      "kind": "tool.description_changed",
      "family": "",
      "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_beta"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 07:00:14.786193+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04204-efd1-77d3-8362-6cec2fa1a104"
    },
    {
      "id": "chg_01a04204-efd1-7d6e-884d-73dc8993a49c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "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 07:00:14.786193+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04204-efd1-7d6e-884d-73dc8993a49c"
    },
    {
      "id": "chg_01a04204-efd5-766f-b8ac-0be43146f0ca",
      "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 07:00:14.786193+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04204-efd5-766f-b8ac-0be43146f0ca"
    },
    {
      "id": "chg_01a04204-efd6-74be-b730-564c730dfdda",
      "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 07:00:14.786193+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-epa-regulations/epa-regulations-mcp#chg-chg_01a04204-efd6-74be-b730-564c730dfdda"
    },
    {
      "id": "chg_01a037b8-3180-75b8-9855-88683d0b8079",
      "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 07:00:13.135797+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a037b8-3180-75b8-9855-88683d0b8079"
    },
    {
      "id": "chg_01a03291-ce63-7a53-a491-f97a588b9309",
      "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": "2026-08-24",
      "occurred_at": "2026-08-24 07:00:11.091947+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a03291-ce63-7a53-a491-f97a588b9309"
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    {
      "id": "chg_01a02d6b-7afc-7557-8a90-e20b23f88045",
      "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": "2026-08-23",
      "occurred_at": "2026-08-23 07:00:13.568771+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02d6b-7afc-7557-8a90-e20b23f88045"
    },
    {
      "id": "chg_01a02d6b-7afd-7690-9ab1-6e27e61ccd14",
      "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"
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      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 07:00:13.568771+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-epa-regulations/epa-regulations-mcp#chg-chg_01a02d6b-7afd-7690-9ab1-6e27e61ccd14"
    },
    {
      "id": "chg_01a02d6b-7afd-7bcd-bc96-4847539552b9",
      "kind": "tool.description_changed",
      "family": "",
      "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"
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      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 07:00:13.568771+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-epa-regulations/epa-regulations-mcp#chg-chg_01a02d6b-7afd-7bcd-bc96-4847539552b9"
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    {
      "id": "chg_01a02d6b-7afe-713d-8fca-8de84bcffa3f",
      "kind": "tool.description_changed",
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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_grounded"
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      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 07:00:13.568771+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-epa-regulations/epa-regulations-mcp#chg-chg_01a02d6b-7afe-713d-8fca-8de84bcffa3f"
    },
    {
      "id": "chg_01a02d6b-7afe-7658-b82f-e36990f7e256",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_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": "deep_research"
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      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 07:00:13.568771+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02d6b-7afe-7658-b82f-e36990f7e256"
    },
    {
      "id": "chg_01a02d6b-7afe-7b65-812e-960fa11f66cd",
      "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": "2026-08-23",
      "occurred_at": "2026-08-23 07:00:13.568771+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02d6b-7afe-7b65-812e-960fa11f66cd"
    },
    {
      "id": "chg_01a02849-1720-7d91-8f74-8006d3dd0868",
      "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": "2026-08-22",
      "occurred_at": "2026-08-22 07:04:33.70696+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02849-1720-7d91-8f74-8006d3dd0868"
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    {
      "id": "chg_01a02849-1722-71ff-be8c-49a3e72ca77f",
      "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": "2026-08-22",
      "occurred_at": "2026-08-22 07:04:33.70696+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "First check of Authorization (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02849-1722-71ff-be8c-49a3e72ca77f"
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    {
      "id": "chg_01a02849-1723-70f3-9897-d509533e5c99",
      "kind": "tool.description_changed",
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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"
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      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 07:04:33.70696+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02849-1723-70f3-9897-d509533e5c99"
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    {
      "id": "chg_01a02849-1723-79e8-ba4c-806d8eebbf92",
      "kind": "tool.description_changed",
      "family": "",
      "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"
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      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 07:04:33.70696+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02849-1723-79e8-ba4c-806d8eebbf92"
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    {
      "id": "chg_01a02849-1724-71a2-9511-9edd23348c73",
      "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"
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      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 07:04:33.70696+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02849-1724-71a2-9511-9edd23348c73"
    },
    {
      "id": "chg_01a02849-1724-77a5-ac14-bf3b061fd3c0",
      "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": "2026-08-22",
      "occurred_at": "2026-08-22 07:04:33.70696+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02849-1724-77a5-ac14-bf3b061fd3c0"
    },
    {
      "id": "chg_01a02849-1724-7bb5-b017-29d5b6147d51",
      "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": "2026-08-22",
      "occurred_at": "2026-08-22 07:04:33.70696+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02849-1724-7bb5-b017-29d5b6147d51"
    },
    {
      "id": "chg_01a02322-d5b3-7704-816a-aceb16165439",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive_unverified",
      "to_code": "auth.none_destructive",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
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      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 07:04:40.499328+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02322-d5b3-7704-816a-aceb16165439"
    },
    {
      "id": "chg_01a02322-d5b4-77ae-b80e-9fc9441f1483",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
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      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 07:04:40.499328+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02322-d5b4-77ae-b80e-9fc9441f1483"
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    {
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      "detail": {
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      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 07:04:40.499328+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02322-d5b4-7c6b-ba42-a9325c6f20e0"
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    {
      "id": "chg_01a02322-d5b5-7722-aebe-5054cfa5ab7d",
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      "materiality": "security",
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      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 07:04:40.499328+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02322-d5b5-7722-aebe-5054cfa5ab7d"
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    {
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      "detail": {
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      "occurred_at": "2026-08-21 07:04:40.499328+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-epa-regulations/epa-regulations-mcp#chg-chg_01a02322-d5b5-7d18-b15b-2078f1f08fb3"
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      "occurred_at": "2026-08-21 07:04:40.499328+00",
      "observed_since": "2026-08-20",
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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-epa-regulations/epa-regulations-mcp#chg-chg_01a02322-d5b6-728a-8630-9c39bc0b80dd"
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      "occurred_at": "2026-08-20 07:05:43.735731+00",
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      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
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      "observed_since": "2026-08-19",
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      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
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      "observed_since": "2026-08-19",
      "source": "scan",
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      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
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