{
  "server": "pipeworx-io-usgswater",
  "component": "usgswater-mcp",
  "generated_at": "2026-08-03T23:46:28.478Z",
  "tracking_since": "2026-07-26",
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    "security": 27,
    "functional": 0,
    "cosmetic": 0
  },
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      "occurred_at": "2026-08-03 01:06:34.859139+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc528-8508-74a4-a929-645489d186cf"
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    {
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      "occurred_at": "2026-08-03 01:06:34.859139+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc528-8509-7a44-b2b1-30e7d901f768"
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    {
      "id": "chg_019fc528-8509-75fc-9a1d-466b7ed3509e",
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        "tool": "deep_research"
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      "occurred_at": "2026-08-03 01:06:34.859139+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc528-8509-75fc-9a1d-466b7ed3509e"
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    {
      "id": "chg_019fc528-8509-70a4-92cd-180e5cd891b7",
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      "materiality": "security",
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      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 01:06:34.859139+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc528-8509-70a4-92cd-180e5cd891b7"
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    {
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      "materiality": "security",
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      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 01:06:34.859139+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc528-8508-7a7b-b80c-5a6fe680619e"
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    {
      "id": "chg_019fc001-99be-793f-9703-22f9ba9b669f",
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      "subject_kind": "tool",
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      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 01:05:58.185234+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc001-99be-793f-9703-22f9ba9b669f"
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    {
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      "subject_kind": "server",
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      "materiality": "security",
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      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 01:05:58.185234+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc001-99bf-7e37-98ec-4eadf23a347c"
    },
    {
      "id": "chg_019fc001-99bf-796c-906c-4c0748ebd1c4",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 01:05:58.185234+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc001-99bf-796c-906c-4c0748ebd1c4"
    },
    {
      "id": "chg_019fc001-99bf-74a3-ad7b-b1cb63e15e20",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
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      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 01:05:58.185234+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc001-99bf-74a3-ad7b-b1cb63e15e20"
    },
    {
      "id": "chg_019fc001-99be-7eb8-8cfd-01782dd077b9",
      "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"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 01:05:58.185234+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc001-99be-7eb8-8cfd-01782dd077b9"
    },
    {
      "id": "chg_019fc001-99be-7214-8b8c-52e692871f81",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.none_destructive_unverified",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 01:05:58.185234+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fc001-99be-7214-8b8c-52e692871f81"
    },
    {
      "id": "chg_019fbada-a389-7166-b822-d7595b539cb3",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
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      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 01:05:18.707726+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fbada-a389-7166-b822-d7595b539cb3"
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    {
      "id": "chg_019fbada-a388-7af4-98b7-73f80d558d0b",
      "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": "2026-08-01",
      "occurred_at": "2026-08-01 01:05:18.707726+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fbada-a388-7af4-98b7-73f80d558d0b"
    },
    {
      "id": "chg_019fbada-a389-7717-8434-aeadd15a2c7c",
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      "subject_kind": "tool",
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 01:05:18.707726+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fbada-a389-7717-8434-aeadd15a2c7c"
    },
    {
      "id": "chg_019fbada-a389-7b9d-97e0-72e240996222",
      "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": "2026-08-01",
      "occurred_at": "2026-08-01 01:05:18.707726+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fbada-a389-7b9d-97e0-72e240996222"
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    {
      "id": "chg_019fbada-a38a-70ef-b6e5-e379478d5ce4",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "deep_research",
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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": "deep_research"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 01:05:18.707726+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fbada-a38a-70ef-b6e5-e379478d5ce4"
    },
    {
      "id": "chg_019fbada-a38a-7723-b1a1-07bbf5081af3",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 01:05:18.707726+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fbada-a38a-7723-b1a1-07bbf5081af3"
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    {
      "id": "chg_019faf89-81db-7b2a-b1b5-cc926f196d2a",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 20:20:52.298295+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019faf89-81db-7b2a-b1b5-cc926f196d2a"
    },
    {
      "id": "chg_019faf89-81db-7f09-9a36-8b0dfd50cb61",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 20:20:52.298295+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019faf89-81db-7f09-9a36-8b0dfd50cb61"
    },
    {
      "id": "chg_019faf89-81db-73bb-8d21-c0fa006cda59",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 20:20:52.298295+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019faf89-81db-73bb-8d21-c0fa006cda59"
    },
    {
      "id": "chg_019faf89-81da-721e-949e-43cebfeace43",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.none_destructive_unverified",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 20:20:52.298295+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019faf89-81da-721e-949e-43cebfeace43"
    },
    {
      "id": "chg_019faf89-81da-7f01-b393-963c4c979d14",
      "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"
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      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 20:20:52.298295+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019faf89-81da-7f01-b393-963c4c979d14"
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    {
      "id": "chg_019faf89-81db-776f-b7a2-446701dba04b",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 20:20:52.298295+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019faf89-81db-776f-b7a2-446701dba04b"
    },
    {
      "id": "chg_019fa9f6-e262-7395-a011-d8aa316a5b12",
      "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": "2026-07-28",
      "occurred_at": "2026-07-28 18:22:37.140727+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fa9f6-e262-7395-a011-d8aa316a5b12"
    },
    {
      "id": "chg_019fa9f6-e261-7d54-bab4-4cb24e71278d",
      "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": "2026-07-28",
      "occurred_at": "2026-07-28 18:22:37.140727+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fa9f6-e261-7d54-bab4-4cb24e71278d"
    },
    {
      "id": "chg_019fa9f6-e261-77c5-8d28-415d54edff64",
      "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": "2026-07-28",
      "occurred_at": "2026-07-28 18:22:37.140727+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fa9f6-e261-77c5-8d28-415d54edff64"
    },
    {
      "id": "chg_019fa9f6-e261-7173-b48c-ac3defe6420d",
      "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"
      },
      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 18:22:37.140727+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fa9f6-e261-7173-b48c-ac3defe6420d"
    },
    {
      "id": "chg_019fa9f6-e263-707d-aea2-649a7e240b2b",
      "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": "2026-07-28",
      "occurred_at": "2026-07-28 18:22:37.140727+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fa9f6-e263-707d-aea2-649a7e240b2b"
    },
    {
      "id": "chg_019fa9f6-e262-7a15-b30e-51aea1e02542",
      "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": "2026-07-28",
      "occurred_at": "2026-07-28 18:22:37.140727+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgswater/usgswater-mcp#chg-chg_019fa9f6-e262-7a15-b30e-51aea1e02542"
    }
  ],
  "days": [
    {
      "date": "2026-08-03",
      "total": 60,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
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    {
      "date": "2026-08-02",
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    {
      "date": "2026-08-01",
      "total": 59,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
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    {
      "date": "2026-07-31",
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      "delta": -2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
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    {
      "date": "2026-07-30",
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      "attribution": null,
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    {
      "date": "2026-07-29",
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      "delta": 0,
      "tracked": true,
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      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-07-28",
      "total": 60,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-07-27",
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}