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      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19a6b-7c69-72c4-a7c0-490ed342054d"
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      "occurred_at": "2026-11-02 04:01:37.865068+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-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19a6b-7c67-7e33-ae33-e0648480c90d"
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      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
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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-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19545-7ee9-75f6-ad7b-56c1dcf865e2"
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      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19545-7ee9-7e53-884f-4e85b4332f4e"
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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-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19545-7eeb-7e8e-b03e-ea20468a6d40"
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      "observed_since": "2026-10-31",
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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-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19545-7eee-750f-817b-f09846ebc443"
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      "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": "2026-11-01",
      "occurred_at": "2026-11-01 04:02:01.798728+00",
      "observed_since": "2026-10-31",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19545-7eee-7b45-b244-cf5fd9a7d852"
    },
    {
      "id": "chg_01a19028-185f-7049-a9a2-bb0120baa793",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 04:11:48.957897+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19028-185f-7049-a9a2-bb0120baa793"
    },
    {
      "id": "chg_01a19028-185f-7593-b599-b06322dddfdc",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 04:11:48.957897+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19028-185f-7593-b599-b06322dddfdc"
    },
    {
      "id": "chg_01a19028-185e-7a48-94ea-997bc8b59c65",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 04:11:48.957897+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19028-185e-7a48-94ea-997bc8b59c65"
    },
    {
      "id": "chg_01a19028-185e-746f-9fdf-5ebb6803b27d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 04:11:48.957897+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19028-185e-746f-9fdf-5ebb6803b27d"
    },
    {
      "id": "chg_01a19028-185c-78ab-bb70-b8ec2e3acfd4",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-31",
      "occurred_at": "2026-10-31 04:11:48.957897+00",
      "observed_since": "2026-10-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a19028-185c-78ab-bb70-b8ec2e3acfd4"
    },
    {
      "id": "chg_01a18b02-6240-7a8d-a342-9e8311f58141",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 04:12:31.491034+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a18b02-6240-7a8d-a342-9e8311f58141"
    },
    {
      "id": "chg_01a18b02-6241-7244-89f7-3b3b02397733",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "compare_entities",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "compare_entities"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 04:12:31.491034+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “compare_entities” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a18b02-6241-7244-89f7-3b3b02397733"
    },
    {
      "id": "chg_01a18b02-6241-7865-ae1f-2f4142c0b7e9",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 04:12:31.491034+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a18b02-6241-7865-ae1f-2f4142c0b7e9"
    },
    {
      "id": "chg_01a18b02-6241-7e7f-a2c6-33fa55c8f6f8",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 04:12:31.491034+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a18b02-6241-7e7f-a2c6-33fa55c8f6f8"
    },
    {
      "id": "chg_01a18b02-623e-79dc-a070-888df3cc4600",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 04:12:31.491034+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a18b02-623e-79dc-a070-888df3cc4600"
    },
    {
      "id": "chg_01a18b02-623f-7cb1-a34f-0c578f6e6f72",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 04:12:31.491034+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a18b02-623f-7cb1-a34f-0c578f6e6f72"
    },
    {
      "id": "chg_01a18b02-6240-73e8-b20a-fc5ac144acbc",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-30",
      "occurred_at": "2026-10-30 04:12:31.491034+00",
      "observed_since": "2026-10-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a18b02-6240-73e8-b20a-fc5ac144acbc"
    },
    {
      "id": "chg_01a185da-d11b-7c39-a5f5-c11252e43859",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "bet_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "bet_research"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 04:11:12.28144+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “bet_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a185da-d11b-7c39-a5f5-c11252e43859"
    },
    {
      "id": "chg_01a185da-d119-756a-b7f1-7c7ecb9e59d3",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 04:11:12.28144+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a185da-d119-756a-b7f1-7c7ecb9e59d3"
    },
    {
      "id": "chg_01a185da-d11a-7567-9877-ce1214e1898e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 04:11:12.28144+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a185da-d11a-7567-9877-ce1214e1898e"
    },
    {
      "id": "chg_01a185da-d11a-7c2c-a99b-e2c1a8b74fe6",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 04:11:12.28144+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a185da-d11a-7c2c-a99b-e2c1a8b74fe6"
    },
    {
      "id": "chg_01a185da-d11b-756e-89de-3bb7b6a1efa3",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 04:11:12.28144+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a185da-d11b-756e-89de-3bb7b6a1efa3"
    },
    {
      "id": "chg_01a185da-d11c-78d5-b426-f6f7338b0e36",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 04:11:12.28144+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a185da-d11c-78d5-b426-f6f7338b0e36"
    },
    {
      "id": "chg_01a185da-d11c-7e79-83f7-449688bc9dcb",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-29",
      "occurred_at": "2026-10-29 04:11:12.28144+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a185da-d11c-7e79-83f7-449688bc9dcb"
    },
    {
      "id": "chg_01a180b4-74a1-7ec9-8a8e-68d2ce92e0ce",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 04:11:12.216508+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a180b4-74a1-7ec9-8a8e-68d2ce92e0ce"
    },
    {
      "id": "chg_01a180b4-74a2-78e1-b9bb-a6a4ce865323",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "polymarket_kalshi_spread",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "polymarket_kalshi_spread"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 04:11:12.216508+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a180b4-74a2-78e1-b9bb-a6a4ce865323"
    },
    {
      "id": "chg_01a180b4-74a6-76b7-a287-0f358dbbfa3e",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 04:11:12.216508+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a180b4-74a6-76b7-a287-0f358dbbfa3e"
    },
    {
      "id": "chg_01a180b4-74a1-791c-9e2c-e4ae86f62021",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 04:11:12.216508+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a180b4-74a1-791c-9e2c-e4ae86f62021"
    },
    {
      "id": "chg_01a180b4-74a1-7143-aea5-1c9f2ba30f4d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 04:11:12.216508+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a180b4-74a1-7143-aea5-1c9f2ba30f4d"
    },
    {
      "id": "chg_01a180b4-749f-734a-8ad4-0e131b7a36bf",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 04:11:12.216508+00",
      "observed_since": "2026-10-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a180b4-749f-734a-8ad4-0e131b7a36bf"
    },
    {
      "id": "chg_01a17b8e-3cd1-7ca5-999d-187afe30b7fa",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 04:11:21.506824+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17b8e-3cd1-7ca5-999d-187afe30b7fa"
    },
    {
      "id": "chg_01a17b8e-3cd2-71c0-91b5-56c87914b2da",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 04:11:21.506824+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17b8e-3cd2-71c0-91b5-56c87914b2da"
    },
    {
      "id": "chg_01a17b8e-3cd2-755f-b355-e406739c4ec1",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 04:11:21.506824+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17b8e-3cd2-755f-b355-e406739c4ec1"
    },
    {
      "id": "chg_01a17b8e-3cd2-7914-ac63-83cdf058465d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 04:11:21.506824+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17b8e-3cd2-7914-ac63-83cdf058465d"
    },
    {
      "id": "chg_01a17b8e-3cd2-7c5e-9de5-00b2fd0bfd36",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 04:11:21.506824+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17b8e-3cd2-7c5e-9de5-00b2fd0bfd36"
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    {
      "id": "chg_01a17b8e-3cd0-79d6-9299-82fb8a3e6c1c",
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      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 04:11:21.506824+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17b8e-3cd0-79d6-9299-82fb8a3e6c1c"
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    {
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      "from_code": null,
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      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-27",
      "occurred_at": "2026-10-27 04:11:21.506824+00",
      "observed_since": "2026-10-26",
      "source": "scan",
      "summary": "First check of Authorization (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17b8e-3cd1-7418-9b3c-223bc3fa33c9"
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    {
      "id": "chg_01a17668-64b2-7973-9f3f-d34ac60a3949",
      "kind": "check.appeared",
      "family": "tool-safety-manipulation",
      "subject_kind": "check",
      "subject": "tool-safety-manipulation",
      "subject_child": "",
      "from_code": null,
      "to_code": "toolsafety.manipulation_clean",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
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      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 04:11:55.417546+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17668-64b2-7973-9f3f-d34ac60a3949"
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    {
      "id": "chg_01a17668-64b1-7656-b80a-2cbde8ffd0db",
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      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
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      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
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      "occurred_at": "2026-10-26 04:11:55.417546+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17668-64b1-7656-b80a-2cbde8ffd0db"
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    {
      "id": "chg_01a17668-64b2-731f-af09-487b7b0bf06c",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-26",
      "occurred_at": "2026-10-26 04:11:55.417546+00",
      "observed_since": "2026-10-25",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-hcup-inpatient-stats/hcup-inpatient-stats-mcp#chg-chg_01a17668-64b2-731f-af09-487b7b0bf06c"
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      "attribution": null,
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      "tracked": true,
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    {
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      "attribution": null,
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}