{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "pipeworx-io-usgs-volcano",
  "component": "usgs-volcano-mcp",
  "generated_at": "2026-09-22T06:37:05.464Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 4,
    "security": 96,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a094e7-5043-7db4-a281-d31225712efb",
      "kind": "check.unverifiable",
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      "from_code": "auth.rfc9728_invoke",
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      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
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      "occurred_at": "2026-09-12 09:16:22.319334+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a094e7-5043-7db4-a281-d31225712efb"
    },
    {
      "id": "chg_01a094e7-5046-791d-8a41-703e0a43c9b7",
      "kind": "check.verdict",
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      "from_code": "stability.stable",
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      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
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      "detail": {
        "days": "30",
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        "auth_transport": "0"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 09:16:22.319334+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a094e7-5046-791d-8a41-703e0a43c9b7"
    },
    {
      "id": "chg_01a094e7-5046-7e53-a1d1-3ab9bfdc88a7",
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      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
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      "from_code": "toolsafety.injection_clean",
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      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
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      "detail": {},
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      "occurred_at": "2026-09-12 09:16:22.319334+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a094e7-5046-7e53-a1d1-3ab9bfdc88a7"
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    {
      "id": "chg_01a08fbf-a9ac-771d-bee6-2d2d2f842719",
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      "family": "auth-oauth",
      "subject_kind": "check",
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      "from_code": "auth.none_unlisted",
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      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
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      "occurred_at": "2026-09-11 09:14:57.327529+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a08fbf-a9ac-771d-bee6-2d2d2f842719"
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    {
      "id": "chg_01a08fbf-a9ad-7f21-934f-11394758459c",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
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      "from_code": "toolsafety.unreachable",
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      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
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      "score_delta": null,
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      "occurred_at": "2026-09-11 09:14:57.327529+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a08fbf-a9ad-7f21-934f-11394758459c"
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    {
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      "from_code": "stability.churn",
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      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
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      "occurred_at": "2026-09-11 09:14:57.327529+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a08fbf-a9ae-7680-8e51-07cf9bc135fe"
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    {
      "id": "chg_01a08573-3ff6-77a3-8169-d48f253765a5",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
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      "from_code": "stability.insufficient_history",
      "to_code": "stability.churn",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
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        "days": "30",
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        "removed": "34",
        "auth_transport": "0"
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      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 09:15:17.738605+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a08573-3ff6-77a3-8169-d48f253765a5"
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    {
      "id": "chg_01a07b29-2539-726d-9412-984d6110ef93",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
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      "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": "2026-09-07",
      "occurred_at": "2026-09-07 09:18:08.943857+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07b29-2539-726d-9412-984d6110ef93"
    },
    {
      "id": "chg_01a07b29-253a-70ac-a884-adff19823749",
      "kind": "check.unverifiable",
      "family": "stability",
      "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": "2026-09-07",
      "occurred_at": "2026-09-07 09:18:08.943857+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07b29-253a-70ac-a884-adff19823749"
    },
    {
      "id": "chg_01a07b29-253a-7589-ad2d-8faa3aa7743d",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
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      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
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      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 09:18:08.943857+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07b29-253a-7589-ad2d-8faa3aa7743d"
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    {
      "id": "chg_01a07b29-253b-78a6-b02f-26a43456af62",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
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      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "unreachable",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "unreachable",
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      },
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 09:18:08.943857+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → unreachable)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07b29-253b-78a6-b02f-26a43456af62"
    },
    {
      "id": "chg_01a07600-0a59-7d8f-a0cb-f0d3e91f523c",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 09:15:09.191464+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07600-0a59-7d8f-a0cb-f0d3e91f523c"
    },
    {
      "id": "chg_01a07600-0a5a-7c58-8408-7a0d0485796b",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 09:15:09.191464+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07600-0a5a-7c58-8408-7a0d0485796b"
    },
    {
      "id": "chg_01a07600-0a5b-72f5-8ada-e413307e0401",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 09:15:09.191464+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07600-0a5b-72f5-8ada-e413307e0401"
    },
    {
      "id": "chg_01a07600-0a5b-78c6-969a-21e489b4da6c",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 09:15:09.191464+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07600-0a5b-78c6-969a-21e489b4da6c"
    },
    {
      "id": "chg_01a07600-0a5b-7da9-8021-109760e3a199",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "deep_research",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 09:15:09.191464+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07600-0a5b-7da9-8021-109760e3a199"
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    {
      "id": "chg_01a07600-0a5c-73b7-8e9b-f1b19ae91044",
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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": "2026-09-06",
      "occurred_at": "2026-09-06 09:15:09.191464+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a07600-0a5c-73b7-8e9b-f1b19ae91044"
    },
    {
      "id": "chg_01a070d8-9895-752a-bcff-29810582d3c8",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 09:13:57.837214+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a070d8-9895-752a-bcff-29810582d3c8"
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    {
      "id": "chg_01a070d8-9897-7631-8c29-59b2e224f4dc",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 09:13:57.837214+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a070d8-9897-7631-8c29-59b2e224f4dc"
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    {
      "id": "chg_01a070d8-9897-7dd6-8668-848fe1ca1c6b",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 09:13:57.837214+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a070d8-9897-7dd6-8668-848fe1ca1c6b"
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    {
      "id": "chg_01a070d8-9898-762a-a35a-1a641318281f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 09:13:57.837214+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a070d8-9898-762a-a35a-1a641318281f"
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    {
      "id": "chg_01a070d8-989a-7997-8ffd-c0440aac2e30",
      "kind": "server.instructions_changed",
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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": "2026-09-05",
      "occurred_at": "2026-09-05 09:13:57.837214+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a070d8-989a-7997-8ffd-c0440aac2e30"
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    {
      "id": "chg_01a06bb2-2515-722c-8890-821dce03609e",
      "kind": "check.verdict",
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      "subject_kind": "check",
      "subject": "auth-oauth",
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      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive",
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      "to_value": "fail",
      "materiality": "critical",
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      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 09:13:51.861633+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06bb2-2515-722c-8890-821dce03609e"
    },
    {
      "id": "chg_01a06bb2-2517-77ce-af17-48b5f7bb5761",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 09:13:51.861633+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06bb2-2517-77ce-af17-48b5f7bb5761"
    },
    {
      "id": "chg_01a06bb2-2517-7dc0-809b-6e6874a8d36a",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 09:13:51.861633+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06bb2-2517-7dc0-809b-6e6874a8d36a"
    },
    {
      "id": "chg_01a06bb2-2518-7699-ae23-d960e29e9aef",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 09:13:51.861633+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06bb2-2518-7699-ae23-d960e29e9aef"
    },
    {
      "id": "chg_01a06bb2-2518-7d92-b52c-255b18ccbdd2",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 09:13:51.861633+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06bb2-2518-7d92-b52c-255b18ccbdd2"
    },
    {
      "id": "chg_01a06bb2-2519-72cd-9bf1-24442429cac8",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "entity_profile",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "entity_profile"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 09:13:51.861633+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “entity_profile” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06bb2-2519-72cd-9bf1-24442429cac8"
    },
    {
      "id": "chg_01a06bb2-251a-7035-8031-4752fdc97728",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 09:13:51.861633+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06bb2-251a-7035-8031-4752fdc97728"
    },
    {
      "id": "chg_01a0668a-f148-7dee-9e5c-9b431ded92d5",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 09:12:56.830573+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0668a-f148-7dee-9e5c-9b431ded92d5"
    },
    {
      "id": "chg_01a0668a-f149-7d4c-aac1-fa5ea5346182",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 09:12:56.830573+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0668a-f149-7d4c-aac1-fa5ea5346182"
    },
    {
      "id": "chg_01a0668a-f14a-7779-b58c-fae0b9a7db71",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 09:12:56.830573+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0668a-f14a-7779-b58c-fae0b9a7db71"
    },
    {
      "id": "chg_01a0668a-f14a-7c5d-a0be-264b78574d8c",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 09:12:56.830573+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0668a-f14a-7c5d-a0be-264b78574d8c"
    },
    {
      "id": "chg_01a0668a-f14b-71d8-9bd2-a6cf310a5cd1",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 09:12:56.830573+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0668a-f14b-71d8-9bd2-a6cf310a5cd1"
    },
    {
      "id": "chg_01a0668a-f14b-7650-bda6-3aaf9f7da4bb",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 09:12:56.830573+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0668a-f14b-7650-bda6-3aaf9f7da4bb"
    },
    {
      "id": "chg_01a06164-714e-70e5-829c-fff1f33fffe6",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 09:12:47.379746+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06164-714e-70e5-829c-fff1f33fffe6"
    },
    {
      "id": "chg_01a06164-7151-7b93-88cc-d8fbff3fa3ee",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 09:12:47.379746+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06164-7151-7b93-88cc-d8fbff3fa3ee"
    },
    {
      "id": "chg_01a06164-7152-71fc-a964-ced07ee1e70c",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 09:12:47.379746+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06164-7152-71fc-a964-ced07ee1e70c"
    },
    {
      "id": "chg_01a06164-7152-783a-850d-a4d6c1da12f2",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 09:12:47.379746+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06164-7152-783a-850d-a4d6c1da12f2"
    },
    {
      "id": "chg_01a06164-7152-7dcc-bc5f-0cd27342c78d",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 09:12:47.379746+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “resolve_entity” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06164-7152-7dcc-bc5f-0cd27342c78d"
    },
    {
      "id": "chg_01a06164-7153-7a52-8099-580e637c0851",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 09:12:47.379746+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a06164-7153-7a52-8099-580e637c0851"
    },
    {
      "id": "chg_01a05c3e-1af6-7c81-ab9d-ca347dbeca96",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 09:12:49.084059+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05c3e-1af6-7c81-ab9d-ca347dbeca96"
    },
    {
      "id": "chg_01a05c3e-1af8-70fa-95e5-294d60417fba",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 09:12:49.084059+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05c3e-1af8-70fa-95e5-294d60417fba"
    },
    {
      "id": "chg_01a05c3e-1af8-77d3-9e5d-b3876b72639a",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 09:12:49.084059+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05c3e-1af8-77d3-9e5d-b3876b72639a"
    },
    {
      "id": "chg_01a05c3e-1af8-7deb-a01e-8ec4e03e96f5",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 09:12:49.084059+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05c3e-1af8-7deb-a01e-8ec4e03e96f5"
    },
    {
      "id": "chg_01a05c3e-1af9-73a2-b1eb-962b1b2baaf7",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 09:12:49.084059+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05c3e-1af9-73a2-b1eb-962b1b2baaf7"
    },
    {
      "id": "chg_01a05717-b4fd-75b6-a7a3-476f304f08aa",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 09:12:46.26639+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05717-b4fd-75b6-a7a3-476f304f08aa"
    },
    {
      "id": "chg_01a05717-b4fe-7939-a686-867124c028b8",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 09:12:46.26639+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05717-b4fe-7939-a686-867124c028b8"
    },
    {
      "id": "chg_01a05717-b500-74dd-b1d2-c80a9f6ee2d3",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 09:12:46.26639+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05717-b500-74dd-b1d2-c80a9f6ee2d3"
    },
    {
      "id": "chg_01a05717-b501-736e-8c57-46c0eb8394e4",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 09:12:46.26639+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05717-b501-736e-8c57-46c0eb8394e4"
    },
    {
      "id": "chg_01a05717-b501-79fe-aacb-7cd08e24dfa3",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 09:12:46.26639+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05717-b501-79fe-aacb-7cd08e24dfa3"
    },
    {
      "id": "chg_01a05717-b501-7e8b-92c2-c9413a0ef73c",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 09:12:46.26639+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a05717-b501-7e8b-92c2-c9413a0ef73c"
    },
    {
      "id": "chg_01a04ccb-b75a-7da3-8c0e-a4dc76616454",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 09:13:34.22993+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a04ccb-b75a-7da3-8c0e-a4dc76616454"
    },
    {
      "id": "chg_01a04ccb-b75d-7011-ab2d-f24b6dc3647f",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 09:13:34.22993+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a04ccb-b75d-7011-ab2d-f24b6dc3647f"
    },
    {
      "id": "chg_01a04ccb-b75d-7b6b-a4c3-2b622dbe54c9",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 09:13:34.22993+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a04ccb-b75d-7b6b-a4c3-2b622dbe54c9"
    },
    {
      "id": "chg_01a04ccb-b75e-72ce-8ff0-bc7451041966",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 09:13:34.22993+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a04ccb-b75e-72ce-8ff0-bc7451041966"
    },
    {
      "id": "chg_01a04ccb-b75e-78fc-b98d-0086c54b5ea4",
      "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": "2026-08-29",
      "occurred_at": "2026-08-29 09:13:34.22993+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a04ccb-b75e-78fc-b98d-0086c54b5ea4"
    },
    {
      "id": "chg_01a0427e-1e11-7048-9112-6ec0867bdebc",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 09:12:36.581028+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0427e-1e11-7048-9112-6ec0867bdebc"
    },
    {
      "id": "chg_01a0427e-1e12-708f-b2a8-5faf44399976",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 09:12:36.581028+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0427e-1e12-708f-b2a8-5faf44399976"
    },
    {
      "id": "chg_01a0427e-1e12-7856-aec2-3955c8dbca94",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 09:12:36.581028+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0427e-1e12-7856-aec2-3955c8dbca94"
    },
    {
      "id": "chg_01a0427e-1e12-7e73-b140-977ec23f86d4",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 09:12:36.581028+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0427e-1e12-7e73-b140-977ec23f86d4"
    },
    {
      "id": "chg_01a0427e-1e13-763e-9966-9219283d6062",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 09:12:36.581028+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0427e-1e13-763e-9966-9219283d6062"
    },
    {
      "id": "chg_01a0382f-f60a-77ae-b9e8-b6dfece365bf",
      "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": "2026-08-25",
      "occurred_at": "2026-08-25 09:11:02.234614+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0382f-f60a-77ae-b9e8-b6dfece365bf"
    },
    {
      "id": "chg_01a0382f-f60c-7297-a7b0-044c39e7d730",
      "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 09:11:02.234614+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0382f-f60c-7297-a7b0-044c39e7d730"
    },
    {
      "id": "chg_01a02de6-0a5c-755d-beeb-3223730f78f7",
      "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": "2026-08-23",
      "occurred_at": "2026-08-23 09:14:05.66666+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02de6-0a5c-755d-beeb-3223730f78f7"
    },
    {
      "id": "chg_01a02de6-0a5d-71be-bfbf-b21e480daf7f",
      "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": "2026-08-23",
      "occurred_at": "2026-08-23 09:14:05.66666+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "First check of Authorization (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02de6-0a5d-71be-bfbf-b21e480daf7f"
    },
    {
      "id": "chg_01a02de6-0a5d-77f8-aceb-e4aa9bfc5c6d",
      "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 09:14:05.66666+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02de6-0a5d-77f8-aceb-e4aa9bfc5c6d"
    },
    {
      "id": "chg_01a02de6-0a5d-7da3-8216-d99c0035fd3d",
      "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 09:14:05.66666+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02de6-0a5d-7da3-8216-d99c0035fd3d"
    },
    {
      "id": "chg_01a02de6-0a5e-744b-ae5c-a3b8c9533f0f",
      "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 09:14:05.66666+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02de6-0a5e-744b-ae5c-a3b8c9533f0f"
    },
    {
      "id": "chg_01a02de6-0a5e-7ad2-b11a-cc10ed42a6ac",
      "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 09:14:05.66666+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02de6-0a5e-7ad2-b11a-cc10ed42a6ac"
    },
    {
      "id": "chg_01a02de6-0a5f-706a-8b0d-840a3266b005",
      "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 09:14:05.66666+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02de6-0a5f-706a-8b0d-840a3266b005"
    },
    {
      "id": "chg_01a028be-c4ab-7886-a3a8-559ab18aabd6",
      "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 09:13:05.909682+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a028be-c4ab-7886-a3a8-559ab18aabd6"
    },
    {
      "id": "chg_01a028be-c4ac-77d2-9d46-6a3047c5b2de",
      "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 09:13:05.909682+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a028be-c4ac-77d2-9d46-6a3047c5b2de"
    },
    {
      "id": "chg_01a028be-c4ac-7d62-bb3b-c15da56cbd74",
      "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 09:13:05.909682+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a028be-c4ac-7d62-bb3b-c15da56cbd74"
    },
    {
      "id": "chg_01a028be-c4ad-72c0-b519-4a59e0003c0d",
      "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 09:13:05.909682+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a028be-c4ad-72c0-b519-4a59e0003c0d"
    },
    {
      "id": "chg_01a028be-c4ad-77c6-a3af-8cd7ff2a4feb",
      "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 09:13:05.909682+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a028be-c4ad-77c6-a3af-8cd7ff2a4feb"
    },
    {
      "id": "chg_01a02399-dabb-7239-95a5-496b1eafb7dd",
      "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": "2026-08-21",
      "occurred_at": "2026-08-21 09:14:40.46729+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02399-dabb-7239-95a5-496b1eafb7dd"
    },
    {
      "id": "chg_01a02399-dabc-73d5-8a83-dccc5cd5366b",
      "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 09:14:40.46729+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02399-dabc-73d5-8a83-dccc5cd5366b"
    },
    {
      "id": "chg_01a02399-dabc-786a-9748-37b215802ce3",
      "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 09:14:40.46729+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02399-dabc-786a-9748-37b215802ce3"
    },
    {
      "id": "chg_01a02399-dabc-7c44-8c98-ba9aa59a0513",
      "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 09:14:40.46729+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02399-dabc-7c44-8c98-ba9aa59a0513"
    },
    {
      "id": "chg_01a02399-dabd-75b1-a399-41d2ec378b00",
      "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 09:14:40.46729+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02399-dabd-75b1-a399-41d2ec378b00"
    },
    {
      "id": "chg_01a02399-dabd-7991-8dd1-f6a854d48ed2",
      "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 09:14:40.46729+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a02399-dabd-7991-8dd1-f6a854d48ed2"
    },
    {
      "id": "chg_01a01e71-4fc1-779d-a8e1-d43b7ec916ee",
      "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 09:12:17.528342+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01e71-4fc1-779d-a8e1-d43b7ec916ee"
    },
    {
      "id": "chg_01a01e71-4fc2-7b9b-b606-0d7f3705b1c8",
      "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 09:12:17.528342+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01e71-4fc2-7b9b-b606-0d7f3705b1c8"
    },
    {
      "id": "chg_01a01e71-4fc3-7292-9e39-365de81e1f93",
      "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 09:12:17.528342+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01e71-4fc3-7292-9e39-365de81e1f93"
    },
    {
      "id": "chg_01a01e71-4fc3-7896-954a-07d172d7ba4b",
      "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 09:12:17.528342+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01e71-4fc3-7896-954a-07d172d7ba4b"
    },
    {
      "id": "chg_01a01e71-4fc3-7dee-ba5c-0dbc5faeccda",
      "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 09:12:17.528342+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01e71-4fc3-7dee-ba5c-0dbc5faeccda"
    },
    {
      "id": "chg_01a0194b-9166-75fa-bcd0-5f95b946cf4a",
      "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": "2026-08-19",
      "occurred_at": "2026-08-19 09:12:57.759733+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0194b-9166-75fa-bcd0-5f95b946cf4a"
    },
    {
      "id": "chg_01a0194b-9167-7239-915e-00c50a000475",
      "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 09:12:57.759733+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0194b-9167-7239-915e-00c50a000475"
    },
    {
      "id": "chg_01a0194b-9167-78f5-9f64-59a5303e3234",
      "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 09:12:57.759733+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0194b-9167-78f5-9f64-59a5303e3234"
    },
    {
      "id": "chg_01a0194b-9167-7de2-a758-a941cd4b829d",
      "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 09:12:57.759733+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0194b-9167-7de2-a758-a941cd4b829d"
    },
    {
      "id": "chg_01a0194b-9168-747c-bdf9-0dae354a44e6",
      "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 09:12:57.759733+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0194b-9168-747c-bdf9-0dae354a44e6"
    },
    {
      "id": "chg_01a0194b-9168-7f2b-917a-1960721858d8",
      "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 09:12:57.759733+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a0194b-9168-7f2b-917a-1960721858d8"
    },
    {
      "id": "chg_01a01423-ee53-7e0b-8e0d-5fa330404dda",
      "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": "2026-08-18",
      "occurred_at": "2026-08-18 09:11:34.144898+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01423-ee53-7e0b-8e0d-5fa330404dda"
    },
    {
      "id": "chg_01a01423-ee55-7075-a4ef-dd24a358460f",
      "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 09:11:34.144898+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01423-ee55-7075-a4ef-dd24a358460f"
    },
    {
      "id": "chg_01a01423-ee56-7101-9d50-37915b32bd20",
      "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 09:11:34.144898+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01423-ee56-7101-9d50-37915b32bd20"
    },
    {
      "id": "chg_01a01423-ee57-7429-bfb0-96b13e723047",
      "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 09:11:34.144898+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01423-ee57-7429-bfb0-96b13e723047"
    },
    {
      "id": "chg_01a01423-ee57-7a49-bf26-8e432a048344",
      "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 09:11:34.144898+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01423-ee57-7a49-bf26-8e432a048344"
    },
    {
      "id": "chg_01a01423-ee58-70c3-9bd7-14462f25041a",
      "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 09:11:34.144898+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a01423-ee58-70c3-9bd7-14462f25041a"
    },
    {
      "id": "chg_01a00efe-a7de-7c82-bb17-a110ff7afc7d",
      "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 09:12:45.146837+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-usgs-volcano/usgs-volcano-mcp#chg-chg_01a00efe-a7de-7c82-bb17-a110ff7afc7d"
    }
  ],
  "days": [
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      "date": "2026-09-21",
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      "tracked": true,
      "explained": true,
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      "attribution": null,
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    {
      "date": "2026-09-20",
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      "tracked": true,
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    {
      "date": "2026-09-19",
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      "tracked": true,
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      "beyond_event_horizon": false,
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    {
      "date": "2026-09-18",
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      "delta": 0,
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    {
      "date": "2026-09-17",
      "total": 40,
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      "tracked": true,
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      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-09-16",
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      "delta": 0,
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    {
      "date": "2026-09-14",
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}