{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "pipeworx-io-nager-holidays",
  "component": "nager-holidays-mcp",
  "generated_at": "2026-10-19T03:56:40.540Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 4,
    "security": 96,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a08534-0f66-7090-9b87-c7eaaf45dce3",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "unreachable",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "unreachable"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 08:06:16.614701+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Endpoint reachability (unreachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a08534-0f66-7090-9b87-c7eaaf45dce3"
    },
    {
      "id": "chg_01a08011-b15a-73ce-aeff-441787e07111",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "not_mcp",
      "to_value": "unreachable",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "unreachable",
        "from": "not_mcp"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 08:10:38.019312+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Endpoint reachability (not serving MCP → unreachable)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a08011-b15a-73ce-aeff-441787e07111"
    },
    {
      "id": "chg_01a04242-6951-7835-a5f7-e088d9811c52",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_unlisted",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 08:07:23.694602+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a04242-6951-7835-a5f7-e088d9811c52"
    },
    {
      "id": "chg_01a04242-6952-7f32-b99c-85fe69f76f38",
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      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.insufficient_history",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 08:07:23.694602+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a04242-6952-7f32-b99c-85fe69f76f38"
    },
    {
      "id": "chg_01a04242-6953-75d3-b960-1d0df37b3846",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.http_error",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "status": "400",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 08:07:23.694602+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a04242-6953-75d3-b960-1d0df37b3846"
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    {
      "id": "chg_01a04242-6953-7ac8-b1b6-4f4c33cf2d16",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 08:07:23.694602+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a04242-6953-7ac8-b1b6-4f4c33cf2d16"
    },
    {
      "id": "chg_01a04242-6955-7091-9880-0106a5b9d59e",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 08:07:23.694602+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a04242-6955-7091-9880-0106a5b9d59e"
    },
    {
      "id": "chg_01a037f5-4a97-7060-a078-a2a95585f76a",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 08:06:57.332641+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a037f5-4a97-7060-a078-a2a95585f76a"
    },
    {
      "id": "chg_01a032ce-a9e3-7835-9b52-a435f2a996bd",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 08:06:39.709967+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a032ce-a9e3-7835-9b52-a435f2a996bd"
    },
    {
      "id": "chg_01a02da8-2b68-75e4-93b1-8a6eb344c515",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 08:06:30.909713+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02da8-2b68-75e4-93b1-8a6eb344c515"
    },
    {
      "id": "chg_01a02da8-2b69-75e7-baa5-379e5cacdd08",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 08:06:30.909713+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02da8-2b69-75e7-baa5-379e5cacdd08"
    },
    {
      "id": "chg_01a02da8-2b69-7b40-aa74-29d92db91ad7",
      "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": "2026-08-23",
      "occurred_at": "2026-08-23 08:06:30.909713+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02da8-2b69-7b40-aa74-29d92db91ad7"
    },
    {
      "id": "chg_01a02da8-2b6a-7195-872c-72c7881455c3",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 08:06:30.909713+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02da8-2b6a-7195-872c-72c7881455c3"
    },
    {
      "id": "chg_01a02da8-2b6a-7777-b08a-ea5f7fd93b4d",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 08:06:30.909713+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02da8-2b6a-7777-b08a-ea5f7fd93b4d"
    },
    {
      "id": "chg_01a02882-71dd-73e3-a7ee-52971b771127",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive_unverified",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 08:07:12.55023+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02882-71dd-73e3-a7ee-52971b771127"
    },
    {
      "id": "chg_01a02882-71de-7045-a51a-fa54b16f2378",
      "kind": "check.appeared",
      "family": "auth-registration",
      "subject_kind": "check",
      "subject": "auth-registration",
      "subject_child": "",
      "from_code": null,
      "to_code": "auth.registration_cimd",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 08:07:12.55023+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "First check of Authorization (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02882-71de-7045-a51a-fa54b16f2378"
    },
    {
      "id": "chg_01a02882-71de-76af-bb1b-980690da5fe0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 08:07:12.55023+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02882-71de-76af-bb1b-980690da5fe0"
    },
    {
      "id": "chg_01a02882-71de-7d05-9723-4a1e3c91c669",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 08:07:12.55023+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02882-71de-7d05-9723-4a1e3c91c669"
    },
    {
      "id": "chg_01a02882-71df-7387-a3e4-a606da7244dc",
      "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": "2026-08-22",
      "occurred_at": "2026-08-22 08:07:12.55023+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02882-71df-7387-a3e4-a606da7244dc"
    },
    {
      "id": "chg_01a02882-71df-7927-b5bc-e68edfb39f5b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 08:07:12.55023+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02882-71df-7927-b5bc-e68edfb39f5b"
    },
    {
      "id": "chg_01a02882-71df-7e4f-9cb4-252ce08b1276",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 08:07:12.55023+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a02882-71df-7e4f-9cb4-252ce08b1276"
    },
    {
      "id": "chg_01a0235b-5bbe-7604-a6eb-3191d7b4bb05",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 08:06:24.799393+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0235b-5bbe-7604-a6eb-3191d7b4bb05"
    },
    {
      "id": "chg_01a0235b-5bbf-7bf8-a5e0-4ac08216f180",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 08:06:24.799393+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0235b-5bbf-7bf8-a5e0-4ac08216f180"
    },
    {
      "id": "chg_01a0235b-5bc0-726e-a375-bbde41067a83",
      "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": "2026-08-21",
      "occurred_at": "2026-08-21 08:06:24.799393+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0235b-5bc0-726e-a375-bbde41067a83"
    },
    {
      "id": "chg_01a0235b-5bc0-780f-af3d-7db78c3285d6",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 08:06:24.799393+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0235b-5bc0-780f-af3d-7db78c3285d6"
    },
    {
      "id": "chg_01a0235b-5bc0-7cbf-a111-73a82f67828a",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 08:06:24.799393+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0235b-5bc0-7cbf-a111-73a82f67828a"
    },
    {
      "id": "chg_01a01e34-ca4c-75c5-a271-d0a9e5a545b6",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 08:06:11.196913+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a01e34-ca4c-75c5-a271-d0a9e5a545b6"
    },
    {
      "id": "chg_01a01e34-ca4f-72f5-9e7c-e46eb020b511",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 08:06:11.196913+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a01e34-ca4f-72f5-9e7c-e46eb020b511"
    },
    {
      "id": "chg_01a01e34-ca4f-7ae0-b05e-5e8543c1db8a",
      "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": "2026-08-20",
      "occurred_at": "2026-08-20 08:06:11.196913+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a01e34-ca4f-7ae0-b05e-5e8543c1db8a"
    },
    {
      "id": "chg_01a01e34-ca50-727f-9600-dd2520aa18ab",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 08:06:11.196913+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a01e34-ca50-727f-9600-dd2520aa18ab"
    },
    {
      "id": "chg_01a01e34-ca50-7903-b6d4-ccdfaa199f18",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 08:06:11.196913+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a01e34-ca50-7903-b6d4-ccdfaa199f18"
    },
    {
      "id": "chg_01a0190e-63c7-72ce-863c-216dc3644996",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-19",
      "occurred_at": "2026-08-19 08:06:08.44567+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0190e-63c7-72ce-863c-216dc3644996"
    },
    {
      "id": "chg_01a0190e-63c8-761c-9847-871481dc93e3",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-19",
      "occurred_at": "2026-08-19 08:06:08.44567+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0190e-63c8-761c-9847-871481dc93e3"
    },
    {
      "id": "chg_01a0190e-63c8-7ad9-bd8d-10fcff0afe98",
      "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": "2026-08-19",
      "occurred_at": "2026-08-19 08:06:08.44567+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0190e-63c8-7ad9-bd8d-10fcff0afe98"
    },
    {
      "id": "chg_01a0190e-63c9-7006-aa5d-a9757f36ed47",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-19",
      "occurred_at": "2026-08-19 08:06:08.44567+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0190e-63c9-7006-aa5d-a9757f36ed47"
    },
    {
      "id": "chg_01a0190e-63c9-7941-93ea-d9a4c79269aa",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-19",
      "occurred_at": "2026-08-19 08:06:08.44567+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0190e-63c9-7941-93ea-d9a4c79269aa"
    },
    {
      "id": "chg_01a013e7-814a-74d9-867b-ed2da80b704b",
      "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": "2026-08-18",
      "occurred_at": "2026-08-18 08:05:33.931283+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a013e7-814a-74d9-867b-ed2da80b704b"
    },
    {
      "id": "chg_01a013e7-814d-7b26-996f-e3dae39673ef",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-18",
      "occurred_at": "2026-08-18 08:05:33.931283+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a013e7-814d-7b26-996f-e3dae39673ef"
    },
    {
      "id": "chg_01a013e7-814e-71e5-8fc7-25ab32169ec5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-18",
      "occurred_at": "2026-08-18 08:05:33.931283+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a013e7-814e-71e5-8fc7-25ab32169ec5"
    },
    {
      "id": "chg_01a013e7-814e-7a2b-a42f-2fcf2cf11fbb",
      "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": "2026-08-18",
      "occurred_at": "2026-08-18 08:05:33.931283+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a013e7-814e-7a2b-a42f-2fcf2cf11fbb"
    },
    {
      "id": "chg_01a013e7-814f-7032-9591-cd32d8b5322e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-18",
      "occurred_at": "2026-08-18 08:05:33.931283+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a013e7-814f-7032-9591-cd32d8b5322e"
    },
    {
      "id": "chg_01a013e7-814f-7997-8666-cb450824bf0a",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-18",
      "occurred_at": "2026-08-18 08:05:33.931283+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a013e7-814f-7997-8666-cb450824bf0a"
    },
    {
      "id": "chg_01a00ebd-7347-74f9-a8b2-3633839bbb1f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-17",
      "occurred_at": "2026-08-17 08:01:31.8339+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00ebd-7347-74f9-a8b2-3633839bbb1f"
    },
    {
      "id": "chg_01a00ebd-7348-73b8-837b-b7a5e5ba375f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-17",
      "occurred_at": "2026-08-17 08:01:31.8339+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00ebd-7348-73b8-837b-b7a5e5ba375f"
    },
    {
      "id": "chg_01a00ebd-7348-7958-8994-f08299be6d97",
      "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": "2026-08-17",
      "occurred_at": "2026-08-17 08:01:31.8339+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00ebd-7348-7958-8994-f08299be6d97"
    },
    {
      "id": "chg_01a00ebd-7348-7e3a-8281-c8463c31a192",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-17",
      "occurred_at": "2026-08-17 08:01:31.8339+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00ebd-7348-7e3a-8281-c8463c31a192"
    },
    {
      "id": "chg_01a00ebd-7349-7528-ba73-452a91923d17",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolve_entity",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_entity"
      },
      "occurred_on": "2026-08-17",
      "occurred_at": "2026-08-17 08:01:31.8339+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Tool “resolve_entity” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00ebd-7349-7528-ba73-452a91923d17"
    },
    {
      "id": "chg_01a00ebd-7349-79bc-9b91-bec1f5a38495",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-17",
      "occurred_at": "2026-08-17 08:01:31.8339+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00ebd-7349-79bc-9b91-bec1f5a38495"
    },
    {
      "id": "chg_01a00997-1f2c-7953-8c59-13cbbdf3995a",
      "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": "2026-08-16",
      "occurred_at": "2026-08-16 08:01:33.820363+00",
      "observed_since": "2026-08-15",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00997-1f2c-7953-8c59-13cbbdf3995a"
    },
    {
      "id": "chg_01a00997-1f2e-7531-bbaf-200efe30a227",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-16",
      "occurred_at": "2026-08-16 08:01:33.820363+00",
      "observed_since": "2026-08-15",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00997-1f2e-7531-bbaf-200efe30a227"
    },
    {
      "id": "chg_01a00997-1f2f-78a1-98e3-682439c3de77",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-16",
      "occurred_at": "2026-08-16 08:01:33.820363+00",
      "observed_since": "2026-08-15",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00997-1f2f-78a1-98e3-682439c3de77"
    },
    {
      "id": "chg_01a00997-1f30-7286-8c9d-6eac1967d7cf",
      "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": "2026-08-16",
      "occurred_at": "2026-08-16 08:01:33.820363+00",
      "observed_since": "2026-08-15",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00997-1f30-7286-8c9d-6eac1967d7cf"
    },
    {
      "id": "chg_01a00997-1f30-7749-afb0-fb302597db45",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-16",
      "occurred_at": "2026-08-16 08:01:33.820363+00",
      "observed_since": "2026-08-15",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00997-1f30-7749-afb0-fb302597db45"
    },
    {
      "id": "chg_01a00997-1f31-7100-9cc4-aac397663cc9",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-16",
      "occurred_at": "2026-08-16 08:01:33.820363+00",
      "observed_since": "2026-08-15",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a00997-1f31-7100-9cc4-aac397663cc9"
    },
    {
      "id": "chg_01a0046f-c2e7-70b3-bbcb-c0d8bd8b6f71",
      "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": "2026-08-15",
      "occurred_at": "2026-08-15 08:00:28.365743+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0046f-c2e7-70b3-bbcb-c0d8bd8b6f71"
    },
    {
      "id": "chg_01a0046f-c2e8-77a3-8f21-967c8e67482b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-15",
      "occurred_at": "2026-08-15 08:00:28.365743+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0046f-c2e8-77a3-8f21-967c8e67482b"
    },
    {
      "id": "chg_01a0046f-c2e8-7ecb-b99e-2d898a80dfc1",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-15",
      "occurred_at": "2026-08-15 08:00:28.365743+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0046f-c2e8-7ecb-b99e-2d898a80dfc1"
    },
    {
      "id": "chg_01a0046f-c2e9-7513-8c4f-200e6265795b",
      "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": "2026-08-15",
      "occurred_at": "2026-08-15 08:00:28.365743+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0046f-c2e9-7513-8c4f-200e6265795b"
    },
    {
      "id": "chg_01a0046f-c2e9-7aaa-8bd0-64534b7c5c50",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-15",
      "occurred_at": "2026-08-15 08:00:28.365743+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0046f-c2e9-7aaa-8bd0-64534b7c5c50"
    },
    {
      "id": "chg_01a0046f-c2ea-7109-8485-fe369519c971",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-15",
      "occurred_at": "2026-08-15 08:00:28.365743+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_01a0046f-c2ea-7109-8485-fe369519c971"
    },
    {
      "id": "chg_019fff49-6c03-72c9-ab7e-52da819a3eae",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 08:00:29.428621+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fff49-6c03-72c9-ab7e-52da819a3eae"
    },
    {
      "id": "chg_019fff49-6c05-767f-876d-2bc74d3b45c2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 08:00:29.428621+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fff49-6c05-767f-876d-2bc74d3b45c2"
    },
    {
      "id": "chg_019fff49-6c09-752d-854d-37f853b53d7d",
      "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": "2026-08-14",
      "occurred_at": "2026-08-14 08:00:29.428621+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fff49-6c09-752d-854d-37f853b53d7d"
    },
    {
      "id": "chg_019fff49-6c0b-7cbe-bf87-2b4c86b94d46",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 08:00:29.428621+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fff49-6c0b-7cbe-bf87-2b4c86b94d46"
    },
    {
      "id": "chg_019fff49-6c0c-73cd-8838-1132cbb9bd94",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolve_entity",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_entity"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 08:00:29.428621+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Tool “resolve_entity” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fff49-6c0c-73cd-8838-1132cbb9bd94"
    },
    {
      "id": "chg_019fff49-6c0c-7ea6-8501-3a6cf4b0684c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "validate_claim",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "validate_claim"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 08:00:29.428621+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Tool “validate_claim” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fff49-6c0c-7ea6-8501-3a6cf4b0684c"
    },
    {
      "id": "chg_019fff49-6c0d-79fb-84ad-8542e8a4f241",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 08:00:29.428621+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fff49-6c0d-79fb-84ad-8542e8a4f241"
    },
    {
      "id": "chg_019ffa22-f20e-7193-a602-eea3e1f0ea2b",
      "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": "2026-08-13",
      "occurred_at": "2026-08-13 08:00:21.946821+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ffa22-f20e-7193-a602-eea3e1f0ea2b"
    },
    {
      "id": "chg_019ffa22-f212-765f-b679-88caf0b1a12f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-13",
      "occurred_at": "2026-08-13 08:00:21.946821+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ffa22-f212-765f-b679-88caf0b1a12f"
    },
    {
      "id": "chg_019ffa22-f213-722d-84a5-ae05edb1c475",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-13",
      "occurred_at": "2026-08-13 08:00:21.946821+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ffa22-f213-722d-84a5-ae05edb1c475"
    },
    {
      "id": "chg_019ffa22-f213-7935-8934-92089322600d",
      "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": "2026-08-13",
      "occurred_at": "2026-08-13 08:00:21.946821+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ffa22-f213-7935-8934-92089322600d"
    },
    {
      "id": "chg_019ffa22-f214-701d-a6d9-6cbe7c021dfb",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-13",
      "occurred_at": "2026-08-13 08:00:21.946821+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ffa22-f214-701d-a6d9-6cbe7c021dfb"
    },
    {
      "id": "chg_019ffa22-f214-755d-8f47-459d5f14045a",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-13",
      "occurred_at": "2026-08-13 08:00:21.946821+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ffa22-f214-755d-8f47-459d5f14045a"
    },
    {
      "id": "chg_019ff4fc-8edc-7ec1-a60f-f3b3f261cc03",
      "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": "2026-08-12",
      "occurred_at": "2026-08-12 08:00:20.170969+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ff4fc-8edc-7ec1-a60f-f3b3f261cc03"
    },
    {
      "id": "chg_019ff4fc-8edd-7a27-9a0f-6eb6d71845b8",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 08:00:20.170969+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ff4fc-8edd-7a27-9a0f-6eb6d71845b8"
    },
    {
      "id": "chg_019ff4fc-8ede-7082-a2cb-34e585c097c5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 08:00:20.170969+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ff4fc-8ede-7082-a2cb-34e585c097c5"
    },
    {
      "id": "chg_019ff4fc-8ede-7596-ba15-26e3fbfd2fb9",
      "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": "2026-08-12",
      "occurred_at": "2026-08-12 08:00:20.170969+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ff4fc-8ede-7596-ba15-26e3fbfd2fb9"
    },
    {
      "id": "chg_019ff4fc-8ede-7b5c-8030-ad231d548b74",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 08:00:20.170969+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ff4fc-8ede-7b5c-8030-ad231d548b74"
    },
    {
      "id": "chg_019ff4fc-8edf-70b7-9ea4-e0ac98bc9969",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "pipeworx_feedback",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "pipeworx_feedback"
      },
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 08:00:20.170969+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Tool “pipeworx_feedback” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ff4fc-8edf-70b7-9ea4-e0ac98bc9969"
    },
    {
      "id": "chg_019ff4fc-8ee0-74d0-ad2e-d7b42b32cebe",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 08:00:20.170969+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019ff4fc-8ee0-74d0-ad2e-d7b42b32cebe"
    },
    {
      "id": "chg_019feaaf-ef76-7df0-a0e1-2571ef33361d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 08:00:26.343601+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019feaaf-ef76-7df0-a0e1-2571ef33361d"
    },
    {
      "id": "chg_019feaaf-ef79-713d-85ba-bf1c0a1fed9a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 08:00:26.343601+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019feaaf-ef79-713d-85ba-bf1c0a1fed9a"
    },
    {
      "id": "chg_019feaaf-ef79-777b-a163-e93ce6d69cdb",
      "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": "2026-08-10",
      "occurred_at": "2026-08-10 08:00:26.343601+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019feaaf-ef79-777b-a163-e93ce6d69cdb"
    },
    {
      "id": "chg_019feaaf-ef7b-79c0-9c29-eb97f2b79111",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 08:00:26.343601+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019feaaf-ef7b-79c0-9c29-eb97f2b79111"
    },
    {
      "id": "chg_019feaaf-ef7d-782b-a877-11613e1cdf42",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-10",
      "occurred_at": "2026-08-10 08:00:26.343601+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019feaaf-ef7d-782b-a877-11613e1cdf42"
    },
    {
      "id": "chg_019fe589-9fcf-7ef7-948d-ea862629f54f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 08:00:29.625076+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe589-9fcf-7ef7-948d-ea862629f54f"
    },
    {
      "id": "chg_019fe589-9fd0-7945-b6c3-e5e4d71c16c9",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 08:00:29.625076+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe589-9fd0-7945-b6c3-e5e4d71c16c9"
    },
    {
      "id": "chg_019fe589-9fd1-70d5-b495-f7ae0a3f45f4",
      "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": "2026-08-09",
      "occurred_at": "2026-08-09 08:00:29.625076+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe589-9fd1-70d5-b495-f7ae0a3f45f4"
    },
    {
      "id": "chg_019fe589-9fd1-7757-8681-aedb8e1400e0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 08:00:29.625076+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe589-9fd1-7757-8681-aedb8e1400e0"
    },
    {
      "id": "chg_019fe589-9fd1-7c41-98c2-843cf1637aff",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "pipeworx_feedback",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "pipeworx_feedback"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 08:00:29.625076+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Tool “pipeworx_feedback” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe589-9fd1-7c41-98c2-843cf1637aff"
    },
    {
      "id": "chg_019fe589-9fd2-722f-a814-258b18cbb48b",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 08:00:29.625076+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe589-9fd2-722f-a814-258b18cbb48b"
    },
    {
      "id": "chg_019fe063-3cc2-788b-9883-78274ca7f8bf",
      "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": "2026-08-08",
      "occurred_at": "2026-08-08 08:00:27.822798+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe063-3cc2-788b-9883-78274ca7f8bf"
    },
    {
      "id": "chg_019fe063-3cc3-75cd-ab53-9ad934c5882f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 08:00:27.822798+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe063-3cc3-75cd-ab53-9ad934c5882f"
    },
    {
      "id": "chg_019fe063-3cc3-7b87-b6da-23ca9605cd6b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 08:00:27.822798+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe063-3cc3-7b87-b6da-23ca9605cd6b"
    },
    {
      "id": "chg_019fe063-3cc4-70f7-a77d-cc59436a8881",
      "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": "2026-08-08",
      "occurred_at": "2026-08-08 08:00:27.822798+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe063-3cc4-70f7-a77d-cc59436a8881"
    },
    {
      "id": "chg_019fe063-3cc4-7556-a95d-4721f8b17ed6",
      "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"
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      "occurred_on": "2026-08-08",
      "occurred_at": "2026-08-08 08:00:27.822798+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe063-3cc4-7556-a95d-4721f8b17ed6"
    },
    {
      "id": "chg_019fe063-3cc4-78de-8f8d-b7043f913e22",
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      "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": "2026-08-08",
      "occurred_at": "2026-08-08 08:00:27.822798+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fe063-3cc4-78de-8f8d-b7043f913e22"
    },
    {
      "id": "chg_019fdb3c-8db4-7a4c-b487-804b23cefbaf",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 08:00:06.557142+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fdb3c-8db4-7a4c-b487-804b23cefbaf"
    },
    {
      "id": "chg_019fdb3c-8db5-7d35-9cf3-304d42d32487",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 08:00:06.557142+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fdb3c-8db5-7d35-9cf3-304d42d32487"
    },
    {
      "id": "chg_019fdb3c-8db6-7458-9fad-862f0874c0d0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "subject_child": "",
      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 08:00:06.557142+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-nager-holidays/nager-holidays-mcp#chg-chg_019fdb3c-8db6-7458-9fad-862f0874c0d0"
    }
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}