{
  "server": "pipeworx-io-usgs-water",
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      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
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      "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-usgs-water/usgs-water-mcp#chg-chg_019fc4f9-0571-7d55-995e-61d332ce13c8"
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      "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-usgs-water/usgs-water-mcp#chg-chg_019fc4f9-0571-71d3-9608-e082c013e7dc"
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      "occurred_at": "2026-08-03 00:14:42.003293+00",
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      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fc4f9-0572-7e4b-9014-3204737a3785"
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      "occurred_at": "2026-08-03 00:14:42.003293+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-usgs-water/usgs-water-mcp#chg-chg_019fc4f9-0572-794d-8843-fed6a6184e73"
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    {
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      "occurred_at": "2026-08-02 00:04:36.527236+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-usgs-water/usgs-water-mcp#chg-chg_019fbfc9-6c4c-70d0-b892-2948ad477ac6"
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    {
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      "subject_kind": "server",
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 00:04:36.527236+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-usgs-water/usgs-water-mcp#chg-chg_019fbfc9-6c4e-72d4-a829-bc0649000950"
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    {
      "id": "chg_019fbfc9-6c4d-7dd6-94a2-8c8e27a7dec3",
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      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 00:04:36.527236+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-usgs-water/usgs-water-mcp#chg-chg_019fbfc9-6c4d-7dd6-94a2-8c8e27a7dec3"
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    {
      "id": "chg_019fbfc9-6c4d-746f-82f4-5accd84efcc1",
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      "subject_kind": "tool",
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 00:04:36.527236+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-usgs-water/usgs-water-mcp#chg-chg_019fbfc9-6c4d-746f-82f4-5accd84efcc1"
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    {
      "id": "chg_019fbfc9-6c4c-7e97-9e53-02ce27e2f61b",
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      "subject_kind": "tool",
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      "detail": {
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 00:04:36.527236+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-usgs-water/usgs-water-mcp#chg-chg_019fbfc9-6c4c-7e97-9e53-02ce27e2f61b"
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    {
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      "detail": {
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 00:05:59.126173+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-usgs-water/usgs-water-mcp#chg-chg_019fbaa4-52e4-7a8e-826e-23df5a762975"
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    {
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 00:05:59.126173+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-usgs-water/usgs-water-mcp#chg-chg_019fbaa4-52e5-7ab7-b0aa-07c463bf3ae5"
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    {
      "id": "chg_019fbaa4-52e4-7eca-b303-ec4ea8bf920e",
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      "subject_kind": "tool",
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      "materiality": "security",
      "direction": "neutral",
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      "detail": {
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 00:05:59.126173+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-usgs-water/usgs-water-mcp#chg-chg_019fbaa4-52e4-7eca-b303-ec4ea8bf920e"
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    {
      "id": "chg_019fbaa4-52e5-76fb-8514-4d22f48f476f",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 00:05:59.126173+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-usgs-water/usgs-water-mcp#chg-chg_019fbaa4-52e5-76fb-8514-4d22f48f476f"
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    {
      "id": "chg_019fbaa4-52e5-730d-b04c-5c65ddf9c4bc",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "from_value": null,
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 00:05:59.126173+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-usgs-water/usgs-water-mcp#chg-chg_019fbaa4-52e5-730d-b04c-5c65ddf9c4bc"
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    {
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      "from_code": "auth.none_destructive",
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      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 00:05:59.126173+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fbaa4-52e3-7f2c-9d09-9fcde7ed2f0a"
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    {
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      "materiality": "security",
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      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 13:20:35.120203+00",
      "observed_since": "2026-07-29",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fb32f-1545-7d7a-8c3c-b6d80aa2dd69"
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    {
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 13:20:35.120203+00",
      "observed_since": "2026-07-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fb32f-1543-7b02-84a9-58068fe2b467"
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    {
      "id": "chg_019fb32f-1544-78bc-b7f0-a693f1236981",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 13:20:35.120203+00",
      "observed_since": "2026-07-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fb32f-1544-78bc-b7f0-a693f1236981"
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    {
      "id": "chg_019fb32f-1544-7ecc-aa84-4884c14847dc",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 13:20:35.120203+00",
      "observed_since": "2026-07-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fb32f-1544-7ecc-aa84-4884c14847dc"
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    {
      "id": "chg_019fb32f-1545-7842-9339-6d5ead9242a1",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
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      "to_value": null,
      "materiality": "security",
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      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-07-30",
      "occurred_at": "2026-07-30 13:20:35.120203+00",
      "observed_since": "2026-07-29",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fb32f-1545-7842-9339-6d5ead9242a1"
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    {
      "id": "chg_019fae3e-10f0-7131-a990-d95522cb7559",
      "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",
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      "score_delta": null,
      "detail": {
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      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 14:18:50.968428+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fae3e-10f0-7131-a990-d95522cb7559"
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    {
      "id": "chg_019fae3e-10f1-7c95-9863-3c3f8b264d03",
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      "family": "",
      "subject_kind": "server",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 14:18:50.968428+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-usgs-water/usgs-water-mcp#chg-chg_019fae3e-10f1-7c95-9863-3c3f8b264d03"
    },
    {
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      "occurred_at": "2026-07-29 14:18:50.968428+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-usgs-water/usgs-water-mcp#chg-chg_019fae3e-10f1-7784-80e9-e1322c48ed3d"
    },
    {
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      "occurred_at": "2026-07-29 14:18:50.968428+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-usgs-water/usgs-water-mcp#chg-chg_019fae3e-10f1-7333-8c5a-e72dbb935e67"
    },
    {
      "id": "chg_019fae3e-10f0-7ea0-8e52-9841e7b69218",
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      "materiality": "security",
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      "detail": {
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      "occurred_at": "2026-07-29 14:18:50.968428+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-usgs-water/usgs-water-mcp#chg-chg_019fae3e-10f0-7ea0-8e52-9841e7b69218"
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    {
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      "detail": {
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      "occurred_at": "2026-07-29 14:18:50.968428+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-usgs-water/usgs-water-mcp#chg-chg_019fae3e-10f0-7966-b5e5-486c786190b9"
    },
    {
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      "kind": "tool.description_changed",
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      "materiality": "security",
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      "detail": {
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      "occurred_at": "2026-07-28 15:43:31.092467+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-usgs-water/usgs-water-mcp#chg-chg_019fa965-3921-7839-96d5-99dc25dd1526"
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    {
      "id": "chg_019fa965-3922-7cc2-9848-e7a474c59d3c",
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      "to_value": null,
      "materiality": "security",
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      "occurred_at": "2026-07-28 15:43:31.092467+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-usgs-water/usgs-water-mcp#chg-chg_019fa965-3922-7cc2-9848-e7a474c59d3c"
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    {
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      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
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      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 15:43:31.092467+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-usgs-water/usgs-water-mcp#chg-chg_019fa965-3922-78d0-a748-7cf594356f32"
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    {
      "id": "chg_019fa965-3922-72e4-b85a-7f9a35d5d64b",
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      "subject_kind": "tool",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 15:43:31.092467+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-usgs-water/usgs-water-mcp#chg-chg_019fa965-3922-72e4-b85a-7f9a35d5d64b"
    },
    {
      "id": "chg_019fa965-3921-7d78-aff8-1fef68940eef",
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      "materiality": "security",
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      "detail": {
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      "occurred_at": "2026-07-28 15:43:31.092467+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-usgs-water/usgs-water-mcp#chg-chg_019fa965-3921-7d78-aff8-1fef68940eef"
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    {
      "id": "chg_019fa965-3921-712f-b158-df8b8ceb7cc6",
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      "subject_kind": "check",
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      "from_code": "auth.none_destructive_unverified",
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      "materiality": "critical",
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      "occurred_at": "2026-07-28 15:43:31.092467+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-water/usgs-water-mcp#chg-chg_019fa965-3921-712f-b158-df8b8ceb7cc6"
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