{
  "server": "pipeworx-io-gutendex",
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      "occurred_at": "2026-08-03 08:05:00.005663+00",
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      "occurred_at": "2026-08-03 08:05:00.005663+00",
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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-gutendex/gutendex-mcp#chg-chg_019fc6a7-9800-79de-a254-15a0d1b73ada"
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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-gutendex/gutendex-mcp#chg-chg_019fc6a7-97ff-7c8a-9b44-6722f3169360"
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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-gutendex/gutendex-mcp#chg-chg_019fc186-4618-76f0-9466-e9e337076034"
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      "occurred_at": "2026-08-02 08:10:30.278856+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-gutendex/gutendex-mcp#chg-chg_019fc186-4619-74bc-afb5-18fac4212e28"
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    {
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      "occurred_at": "2026-08-02 08:10:30.278856+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-gutendex/gutendex-mcp#chg-chg_019fc186-4619-702e-ac8f-fc223f516360"
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    {
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      "occurred_at": "2026-08-02 08:10:30.278856+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-gutendex/gutendex-mcp#chg-chg_019fc186-4618-7b65-a6b9-5b12b5727caf"
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    {
      "id": "chg_019fc186-4617-7be6-a655-3b36c3fab501",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 08:10:30.278856+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-gutendex/gutendex-mcp#chg-chg_019fc186-4617-7be6-a655-3b36c3fab501"
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    {
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 08:12:43.073429+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-gutendex/gutendex-mcp#chg-chg_019fbc61-f0cf-7d50-beb6-e5e465a18da6"
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    {
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      "occurred_at": "2026-08-01 08:12:43.073429+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-gutendex/gutendex-mcp#chg-chg_019fbc61-f0d0-78c4-8875-8ac6256bfcbb"
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      "occurred_at": "2026-08-01 08:12:43.073429+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-gutendex/gutendex-mcp#chg-chg_019fbc61-f0d1-70dc-9383-616f9512eeb7"
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    {
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      "occurred_at": "2026-08-01 08:12:43.073429+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-gutendex/gutendex-mcp#chg-chg_019fbc61-f0d1-77ea-8126-4e2aa7bc31b8"
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    {
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
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      "occurred_at": "2026-08-01 08:12:43.073429+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-gutendex/gutendex-mcp#chg-chg_019fbc61-f0d2-70ab-bcdb-a0c58cdcde66"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 08:12:43.073429+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-gutendex/gutendex-mcp#chg-chg_019fbc61-f0d2-7716-85ad-3eb4dbe8017e"
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    {
      "id": "chg_019fae8f-95e3-7025-b605-5f9386897f98",
      "kind": "server.instructions_changed",
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      "subject_kind": "server",
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      "materiality": "security",
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      "detail": {},
      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 15:47:53.405211+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-gutendex/gutendex-mcp#chg-chg_019fae8f-95e3-7025-b605-5f9386897f98"
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    {
      "id": "chg_019fae8f-95e2-7310-956c-532039ece1a3",
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      "from_code": null,
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      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 15:47:53.405211+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-gutendex/gutendex-mcp#chg-chg_019fae8f-95e2-7310-956c-532039ece1a3"
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    {
      "id": "chg_019fae8f-95e1-7c08-9d95-9d35652f38b8",
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      "subject_kind": "tool",
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      "from_code": null,
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      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 15:47:53.405211+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-gutendex/gutendex-mcp#chg-chg_019fae8f-95e1-7c08-9d95-9d35652f38b8"
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    {
      "id": "chg_019fae8f-95e0-7c82-b0c9-ab6ba0f078ae",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
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      "from_code": "auth.none_destructive",
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      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
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      "detail": {
        "tool": "forget"
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      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 15:47:53.405211+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-gutendex/gutendex-mcp#chg-chg_019fae8f-95e0-7c82-b0c9-ab6ba0f078ae"
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    {
      "id": "chg_019fae8f-95e1-75c0-a926-44e432dcf43b",
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      "subject_kind": "tool",
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      "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 15:47:53.405211+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-gutendex/gutendex-mcp#chg-chg_019fae8f-95e1-75c0-a926-44e432dcf43b"
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    {
      "id": "chg_019fae8f-95e2-7900-aeb9-fed851ca7610",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "occurred_at": "2026-07-29 15:47:53.405211+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-gutendex/gutendex-mcp#chg-chg_019fae8f-95e2-7900-aeb9-fed851ca7610"
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    {
      "id": "chg_019fa951-0e42-7cd3-9900-df4b8f596a35",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 15:21:29.395429+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-gutendex/gutendex-mcp#chg-chg_019fa951-0e42-7cd3-9900-df4b8f596a35"
    },
    {
      "id": "chg_019fa951-0e41-7e1c-abd3-15a919a0ec7a",
      "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 15:21:29.395429+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-gutendex/gutendex-mcp#chg-chg_019fa951-0e41-7e1c-abd3-15a919a0ec7a"
    },
    {
      "id": "chg_019fa951-0e41-785c-b246-6201e06b023c",
      "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 15:21:29.395429+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-gutendex/gutendex-mcp#chg-chg_019fa951-0e41-785c-b246-6201e06b023c"
    },
    {
      "id": "chg_019fa951-0e41-7244-bb2f-d1a7bce62abc",
      "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 15:21:29.395429+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-gutendex/gutendex-mcp#chg-chg_019fa951-0e41-7244-bb2f-d1a7bce62abc"
    },
    {
      "id": "chg_019fa951-0e40-794a-b1d1-db4055c4182d",
      "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 15:21:29.395429+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-gutendex/gutendex-mcp#chg-chg_019fa951-0e40-794a-b1d1-db4055c4182d"
    },
    {
      "id": "chg_019fa951-0e43-734e-b9c8-e4952030a886",
      "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 15:21:29.395429+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-gutendex/gutendex-mcp#chg-chg_019fa951-0e43-734e-b9c8-e4952030a886"
    }
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      "tracked": true,
      "explained": true,
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      "attribution": null,
      "event_count": 5
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    {
      "date": "2026-08-02",
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    {
      "date": "2026-08-01",
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      "delta": 1,
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      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-07-31",
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    {
      "date": "2026-07-30",
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    {
      "date": "2026-07-29",
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    {
      "date": "2026-07-28",
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}