{
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  "server": "pipeworx-io-library-of-congress",
  "component": "library-of-congress-mcp",
  "generated_at": "2026-10-19T03:57:40.864Z",
  "tracking_since": "2026-07-26",
  "counts": {
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    "security": 98,
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    "cosmetic": 0
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      "id": "chg_01a040c4-2566-7e3b-9e44-320492c787ba",
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      "subject_kind": "check",
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      "from_value": "pass",
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      "materiality": "security",
      "direction": "regression",
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      "detail": {},
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      "occurred_at": "2026-08-27 01:09:51.538105+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a040c4-2566-7e3b-9e44-320492c787ba"
    },
    {
      "id": "chg_01a040c4-2567-7b22-90df-b3b98f73f6c5",
      "kind": "check.unverifiable",
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      "subject_kind": "check",
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      "from_code": "auth.none_destructive",
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      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
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      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 01:09:51.538105+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a040c4-2567-7b22-90df-b3b98f73f6c5"
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    {
      "id": "chg_01a040c4-2567-7ee6-a0f2-b1b993900b86",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
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      "from_code": "transport.verified",
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      "from_value": "pass",
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      "detail": {
        "status": "400",
        "transport": "streamable-http"
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      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 01:09:51.538105+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a040c4-2567-7ee6-a0f2-b1b993900b86"
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    {
      "id": "chg_01a040c4-2568-7314-849f-411afef72f6d",
      "kind": "check.unverifiable",
      "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",
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      "materiality": "security",
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      "occurred_at": "2026-08-27 01:09:51.538105+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a040c4-2568-7314-849f-411afef72f6d"
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    {
      "id": "chg_01a040c4-2569-752b-8e2e-29ebf567ded2",
      "kind": "capture.status_changed",
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      "subject_kind": "server",
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      "from_value": "verified",
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      "detail": {
        "to": "not_mcp",
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      "occurred_at": "2026-08-27 01:09:51.538105+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a040c4-2569-752b-8e2e-29ebf567ded2"
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    {
      "id": "chg_01a03678-0ef1-7615-87a7-0f07e140a595",
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      "from_code": "auth.none_destructive",
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      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 01:10:32.829305+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a03678-0ef1-7615-87a7-0f07e140a595"
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    {
      "id": "chg_01a03678-0ef3-78e2-b7d3-eda9cf2231aa",
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      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
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      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
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      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 01:10:32.829305+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a03678-0ef3-78e2-b7d3-eda9cf2231aa"
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    {
      "id": "chg_01a03151-b254-7959-96e0-d48d890db329",
      "kind": "check.verdict",
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      "subject_kind": "check",
      "subject": "auth-oauth",
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      "from_code": "auth.rfc9728_invoke",
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      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
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      "occurred_at": "2026-08-24 01:10:32.742016+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a03151-b254-7959-96e0-d48d890db329"
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    {
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      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "from_code": null,
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      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 01:10:32.742016+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a03151-b255-781e-8783-9c21b4e5fe03"
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    {
      "id": "chg_01a03151-b255-7d49-bbf9-b19788e95764",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
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      "from_code": null,
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      "from_value": null,
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 01:10:32.742016+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a03151-b255-7d49-bbf9-b19788e95764"
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    {
      "id": "chg_01a03151-b256-72f1-8f79-9672125d5f49",
      "kind": "tool.description_changed",
      "family": "",
      "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"
      },
      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 01:10:32.742016+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a03151-b256-72f1-8f79-9672125d5f49"
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    {
      "id": "chg_01a03151-b256-77fc-b60b-20890c58f759",
      "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": "2026-08-24",
      "occurred_at": "2026-08-24 01:10:32.742016+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a03151-b256-77fc-b60b-20890c58f759"
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    {
      "id": "chg_01a03151-b257-7252-8ecf-c68f9e8674a3",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 01:10:32.742016+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a03151-b257-7252-8ecf-c68f9e8674a3"
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    {
      "id": "chg_01a02c2b-4d4b-7cf0-a9ce-2e2b885646bc",
      "kind": "tool.description_changed",
      "family": "",
      "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"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 01:10:30.386527+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02c2b-4d4b-7cf0-a9ce-2e2b885646bc"
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    {
      "id": "chg_01a02c2b-4d4d-7089-8d02-7944b4c4dafa",
      "kind": "tool.description_changed",
      "family": "",
      "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": "2026-08-23",
      "occurred_at": "2026-08-23 01:10:30.386527+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02c2b-4d4d-7089-8d02-7944b4c4dafa"
    },
    {
      "id": "chg_01a02c2b-4d4d-79cf-af0f-496c0385298c",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
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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_grounded"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 01:10:30.386527+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02c2b-4d4d-79cf-af0f-496c0385298c"
    },
    {
      "id": "chg_01a02c2b-4d4e-72fe-bf18-89a7e13a4672",
      "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 01:10:30.386527+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02c2b-4d4e-72fe-bf18-89a7e13a4672"
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    {
      "id": "chg_01a02c2b-4d4e-79cc-aee6-806f5c6caa59",
      "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 01:10:30.386527+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02c2b-4d4e-79cc-aee6-806f5c6caa59"
    },
    {
      "id": "chg_01a02704-ce2d-7c78-ae30-51afd7bd4dee",
      "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 01:10:21.384589+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a02704-ce2d-7c78-ae30-51afd7bd4dee"
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    {
      "id": "chg_01a02704-ce2e-7771-ad5c-4a0e01f60d54",
      "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 01:10:21.384589+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "First check of Authorization (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_01a02704-ce2e-7771-ad5c-4a0e01f60d54"
    },
    {
      "id": "chg_01a02704-ce2e-7be5-9db9-99facd7e79d4",
      "kind": "tool.description_changed",
      "family": "",
      "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"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 01:10:21.384589+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02704-ce2e-7be5-9db9-99facd7e79d4"
    },
    {
      "id": "chg_01a02704-ce2f-71fb-b3f1-c073fde87f56",
      "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 01:10:21.384589+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02704-ce2f-71fb-b3f1-c073fde87f56"
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    {
      "id": "chg_01a02704-ce2f-778d-97cf-e0e3f6d22883",
      "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 01:10:21.384589+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02704-ce2f-778d-97cf-e0e3f6d22883"
    },
    {
      "id": "chg_01a02704-ce2f-7e28-9ace-4ab9abec064e",
      "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 01:10:21.384589+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02704-ce2f-7e28-9ace-4ab9abec064e"
    },
    {
      "id": "chg_01a02704-ce30-74be-b449-ddd21cba9c8f",
      "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 01:10:21.384589+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-library-of-congress/library-of-congress-mcp#chg-chg_01a02704-ce30-74be-b449-ddd21cba9c8f"
    },
    {
      "id": "chg_01a021de-2f21-7b5d-a953-f3bfb2a533c5",
      "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 01:10:04.257006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a021de-2f21-7b5d-a953-f3bfb2a533c5"
    },
    {
      "id": "chg_01a021de-2f23-72a7-9816-fbf195467c6b",
      "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 01:10:04.257006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a021de-2f23-72a7-9816-fbf195467c6b"
    },
    {
      "id": "chg_01a021de-2f23-7d05-ad81-e49ace5000f9",
      "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 01:10:04.257006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a021de-2f23-7d05-ad81-e49ace5000f9"
    },
    {
      "id": "chg_01a021de-2f24-7397-b2e9-cd769c81e97c",
      "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 01:10:04.257006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a021de-2f24-7397-b2e9-cd769c81e97c"
    },
    {
      "id": "chg_01a021de-2f24-79af-91f4-2a1273901b92",
      "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 01:10:04.257006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a021de-2f24-79af-91f4-2a1273901b92"
    },
    {
      "id": "chg_01a01cb7-fc5a-7b8e-b4bc-3b3d8c8eb408",
      "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 01:10:14.832006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01cb7-fc5a-7b8e-b4bc-3b3d8c8eb408"
    },
    {
      "id": "chg_01a01cb7-fc5b-7be3-b06c-986bcec26d3d",
      "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 01:10:14.832006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01cb7-fc5b-7be3-b06c-986bcec26d3d"
    },
    {
      "id": "chg_01a01cb7-fc5c-7177-9565-3177590cd47c",
      "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 01:10:14.832006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01cb7-fc5c-7177-9565-3177590cd47c"
    },
    {
      "id": "chg_01a01cb7-fc5c-769a-b27b-11c95e947f93",
      "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 01:10:14.832006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01cb7-fc5c-769a-b27b-11c95e947f93"
    },
    {
      "id": "chg_01a01cb7-fc5c-7bb8-9ff0-75a1f263dcbe",
      "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 01:10:14.832006+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01cb7-fc5c-7bb8-9ff0-75a1f263dcbe"
    },
    {
      "id": "chg_01a01791-145c-770d-876f-db97f51ebb3a",
      "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 01:09:38.974806+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01791-145c-770d-876f-db97f51ebb3a"
    },
    {
      "id": "chg_01a01791-145d-770b-9469-bf83fb5dd83d",
      "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 01:09:38.974806+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01791-145d-770b-9469-bf83fb5dd83d"
    },
    {
      "id": "chg_01a01791-145d-7cc2-abe9-979ef0696ebe",
      "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 01:09:38.974806+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01791-145d-7cc2-abe9-979ef0696ebe"
    },
    {
      "id": "chg_01a01791-145e-7365-bf97-7d54c7a790df",
      "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 01:09:38.974806+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01791-145e-7365-bf97-7d54c7a790df"
    },
    {
      "id": "chg_01a01791-145f-7cf6-a2ed-71e8d6c6ccf7",
      "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 01:09:38.974806+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-library-of-congress/library-of-congress-mcp#chg-chg_01a01791-145f-7cf6-a2ed-71e8d6c6ccf7"
    },
    {
      "id": "chg_01a0126a-e0fa-7ab0-a10a-a728d3486b47",
      "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 01:09:49.368588+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0126a-e0fa-7ab0-a10a-a728d3486b47"
    },
    {
      "id": "chg_01a0126a-e0fc-7860-a056-aa6c32f98145",
      "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 01:09:49.368588+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0126a-e0fc-7860-a056-aa6c32f98145"
    },
    {
      "id": "chg_01a0126a-e0fe-797e-af0e-b802e1d6ecf5",
      "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 01:09:49.368588+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0126a-e0fe-797e-af0e-b802e1d6ecf5"
    },
    {
      "id": "chg_01a0126a-e0fe-7f30-82ab-fa793e04a6ec",
      "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 01:09:49.368588+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0126a-e0fe-7f30-82ab-fa793e04a6ec"
    },
    {
      "id": "chg_01a0126a-e0ff-757e-8f12-b9a2040f4b92",
      "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 01:09:49.368588+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0126a-e0ff-757e-8f12-b9a2040f4b92"
    },
    {
      "id": "chg_01a00d43-f43f-7261-8fc8-97bdbe392a34",
      "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 01:09:12.329785+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-library-of-congress/library-of-congress-mcp#chg-chg_01a00d43-f43f-7261-8fc8-97bdbe392a34"
    },
    {
      "id": "chg_01a00d43-f43f-7d71-a86b-4e8042111bed",
      "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 01:09:12.329785+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-library-of-congress/library-of-congress-mcp#chg-chg_01a00d43-f43f-7d71-a86b-4e8042111bed"
    },
    {
      "id": "chg_01a00d43-f440-72bf-8b19-34cfdf3b1115",
      "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 01:09:12.329785+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-library-of-congress/library-of-congress-mcp#chg-chg_01a00d43-f440-72bf-8b19-34cfdf3b1115"
    },
    {
      "id": "chg_01a00d43-f440-7878-ac65-9b2b6adeacec",
      "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 01:09:12.329785+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-library-of-congress/library-of-congress-mcp#chg-chg_01a00d43-f440-7878-ac65-9b2b6adeacec"
    },
    {
      "id": "chg_01a00d43-f442-74d5-8e67-087af2dfe0cf",
      "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 01:09:12.329785+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-library-of-congress/library-of-congress-mcp#chg-chg_01a00d43-f442-74d5-8e67-087af2dfe0cf"
    },
    {
      "id": "chg_01a00d43-f443-74ef-b385-478962b4e145",
      "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 01:09:12.329785+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-library-of-congress/library-of-congress-mcp#chg-chg_01a00d43-f443-74ef-b385-478962b4e145"
    },
    {
      "id": "chg_01a0081e-da83-7810-8032-27d08f4ea442",
      "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 01:10:34.843659+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0081e-da83-7810-8032-27d08f4ea442"
    },
    {
      "id": "chg_01a0081e-da84-7468-9730-76c2f3d6c976",
      "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 01:10:34.843659+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0081e-da84-7468-9730-76c2f3d6c976"
    },
    {
      "id": "chg_01a0081e-da84-7a7d-8894-695a6d09a562",
      "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 01:10:34.843659+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0081e-da84-7a7d-8894-695a6d09a562"
    },
    {
      "id": "chg_01a0081e-da85-73a4-9835-43ca8182a404",
      "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 01:10:34.843659+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0081e-da85-73a4-9835-43ca8182a404"
    },
    {
      "id": "chg_01a0081e-da87-7a02-81dc-b2aed608e05f",
      "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 01:10:34.843659+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-library-of-congress/library-of-congress-mcp#chg-chg_01a0081e-da87-7a02-81dc-b2aed608e05f"
    },
    {
      "id": "chg_01a002f6-e9ea-76f8-8e36-3de7d91e2520",
      "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 01:08:51.200099+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-library-of-congress/library-of-congress-mcp#chg-chg_01a002f6-e9ea-76f8-8e36-3de7d91e2520"
    },
    {
      "id": "chg_01a002f6-e9ec-74a0-8128-b8c893146b58",
      "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 01:08:51.200099+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-library-of-congress/library-of-congress-mcp#chg-chg_01a002f6-e9ec-74a0-8128-b8c893146b58"
    },
    {
      "id": "chg_01a002f6-e9ec-7a87-a443-caeed798ecb9",
      "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 01:08:51.200099+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-library-of-congress/library-of-congress-mcp#chg-chg_01a002f6-e9ec-7a87-a443-caeed798ecb9"
    },
    {
      "id": "chg_01a002f6-e9ed-7131-9136-ec70bc7d6664",
      "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 01:08:51.200099+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-library-of-congress/library-of-congress-mcp#chg-chg_01a002f6-e9ed-7131-9136-ec70bc7d6664"
    },
    {
      "id": "chg_01a002f6-e9ed-7b7b-b5c9-f114617433d6",
      "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 01:08:51.200099+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-library-of-congress/library-of-congress-mcp#chg-chg_01a002f6-e9ed-7b7b-b5c9-f114617433d6"
    },
    {
      "id": "chg_019ffdd1-e6bb-7b6a-b263-4904c5790f43",
      "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 01:10:19.535053+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-library-of-congress/library-of-congress-mcp#chg-chg_019ffdd1-e6bb-7b6a-b263-4904c5790f43"
    },
    {
      "id": "chg_019ffdd1-e6bc-7e7e-9ac2-cc7afab76ddb",
      "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 01:10:19.535053+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-library-of-congress/library-of-congress-mcp#chg-chg_019ffdd1-e6bc-7e7e-9ac2-cc7afab76ddb"
    },
    {
      "id": "chg_019ffdd1-e6bd-74b0-8468-d5a0a7be37b7",
      "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 01:10:19.535053+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-library-of-congress/library-of-congress-mcp#chg-chg_019ffdd1-e6bd-74b0-8468-d5a0a7be37b7"
    },
    {
      "id": "chg_019ffdd1-e6bd-78d7-9a7c-5f13b89f1554",
      "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 01:10:19.535053+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-library-of-congress/library-of-congress-mcp#chg-chg_019ffdd1-e6bd-78d7-9a7c-5f13b89f1554"
    },
    {
      "id": "chg_019ffdd1-e6bd-7d9e-9357-c7b4102c1034",
      "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 01:10:19.535053+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-library-of-congress/library-of-congress-mcp#chg-chg_019ffdd1-e6bd-7d9e-9357-c7b4102c1034"
    },
    {
      "id": "chg_019ffdd1-e6be-7536-b641-3d3a5a16c69d",
      "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 01:10:19.535053+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-library-of-congress/library-of-congress-mcp#chg-chg_019ffdd1-e6be-7536-b641-3d3a5a16c69d"
    },
    {
      "id": "chg_019ffdd1-e6be-7a0e-8309-b9baebf3dcfb",
      "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 01:10:19.535053+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-library-of-congress/library-of-congress-mcp#chg-chg_019ffdd1-e6be-7a0e-8309-b9baebf3dcfb"
    },
    {
      "id": "chg_019ff8aa-03d1-71f3-b23d-b7429e3443a5",
      "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": "2026-08-13",
      "occurred_at": "2026-08-13 01:08:39.464969+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_019ff8aa-03d1-71f3-b23d-b7429e3443a5"
    },
    {
      "id": "chg_019ff8aa-03d1-7b94-9f45-52760c868e8b",
      "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 01:08:39.464969+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff8aa-03d1-7b94-9f45-52760c868e8b"
    },
    {
      "id": "chg_019ff8aa-03d2-7029-96bc-bfe12a28295a",
      "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 01:08:39.464969+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff8aa-03d2-7029-96bc-bfe12a28295a"
    },
    {
      "id": "chg_019ff8aa-03d2-73a4-8bf3-18daa7aab232",
      "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 01:08:39.464969+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff8aa-03d2-73a4-8bf3-18daa7aab232"
    },
    {
      "id": "chg_019ff8aa-03d2-778b-833a-64a66fd70e12",
      "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 01:08:39.464969+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff8aa-03d2-778b-833a-64a66fd70e12"
    },
    {
      "id": "chg_019ff8aa-03d2-7aeb-8524-56fee7887209",
      "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 01:08:39.464969+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff8aa-03d2-7aeb-8524-56fee7887209"
    },
    {
      "id": "chg_019ff384-f49c-757d-82d7-ff5cf307c30d",
      "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": "2026-08-12",
      "occurred_at": "2026-08-12 01:10:04.658006+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_019ff384-f49c-757d-82d7-ff5cf307c30d"
    },
    {
      "id": "chg_019ff384-f49d-7192-b257-aa97dec1d776",
      "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 01:10:04.658006+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff384-f49d-7192-b257-aa97dec1d776"
    },
    {
      "id": "chg_019ff384-f49d-773b-add9-d18c06260b6c",
      "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 01:10:04.658006+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff384-f49d-773b-add9-d18c06260b6c"
    },
    {
      "id": "chg_019ff384-f49e-701d-9493-f4d3d3e79e7c",
      "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 01:10:04.658006+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff384-f49e-701d-9493-f4d3d3e79e7c"
    },
    {
      "id": "chg_019ff384-f49e-776f-9ba5-c443618f5e22",
      "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 01:10:04.658006+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff384-f49e-776f-9ba5-c443618f5e22"
    },
    {
      "id": "chg_019ff384-f49e-7cbb-b27d-7dc968ef5802",
      "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 01:10:04.658006+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff384-f49e-7cbb-b27d-7dc968ef5802"
    },
    {
      "id": "chg_019ff384-f4a2-78fa-a556-aff303c6c784",
      "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 01:10:04.658006+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-library-of-congress/library-of-congress-mcp#chg-chg_019ff384-f4a2-78fa-a556-aff303c6c784"
    },
    {
      "id": "chg_019fe937-fd21-726a-9295-d8c13e161868",
      "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 01:09:48.417048+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe937-fd21-726a-9295-d8c13e161868"
    },
    {
      "id": "chg_019fe937-fd21-7e17-9c82-335a0b569167",
      "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 01:09:48.417048+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe937-fd21-7e17-9c82-335a0b569167"
    },
    {
      "id": "chg_019fe937-fd22-749c-a4d4-146877a46b9e",
      "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 01:09:48.417048+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe937-fd22-749c-a4d4-146877a46b9e"
    },
    {
      "id": "chg_019fe937-fd22-7a7b-b7bd-e2ef75f507d4",
      "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 01:09:48.417048+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe937-fd22-7a7b-b7bd-e2ef75f507d4"
    },
    {
      "id": "chg_019fe937-fd23-7044-bb41-0a7c68bdd287",
      "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 01:09:48.417048+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe937-fd23-7044-bb41-0a7c68bdd287"
    },
    {
      "id": "chg_019fe410-329e-7c1a-b481-547a03da12f4",
      "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 01:08:14.582148+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe410-329e-7c1a-b481-547a03da12f4"
    },
    {
      "id": "chg_019fe410-329f-7a51-bbd0-054d88809b0b",
      "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 01:08:14.582148+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe410-329f-7a51-bbd0-054d88809b0b"
    },
    {
      "id": "chg_019fe410-32a0-74cf-812b-17f4e5ab18f9",
      "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 01:08:14.582148+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe410-32a0-74cf-812b-17f4e5ab18f9"
    },
    {
      "id": "chg_019fe410-32a1-76d3-82aa-7d57d0225f9c",
      "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 01:08:14.582148+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe410-32a1-76d3-82aa-7d57d0225f9c"
    },
    {
      "id": "chg_019fe410-32a1-7f12-82aa-c41ecf40bfa5",
      "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 01:08:14.582148+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe410-32a1-7f12-82aa-c41ecf40bfa5"
    },
    {
      "id": "chg_019fe410-32a2-7731-bb20-fde613750c68",
      "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 01:08:14.582148+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-library-of-congress/library-of-congress-mcp#chg-chg_019fe410-32a2-7731-bb20-fde613750c68"
    },
    {
      "id": "chg_019fdeeb-288a-7363-a193-d62937be74fb",
      "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 01:09:41.085632+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-library-of-congress/library-of-congress-mcp#chg-chg_019fdeeb-288a-7363-a193-d62937be74fb"
    },
    {
      "id": "chg_019fdeeb-288b-784f-8c28-bc0c2e4db27d",
      "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 01:09:41.085632+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-library-of-congress/library-of-congress-mcp#chg-chg_019fdeeb-288b-784f-8c28-bc0c2e4db27d"
    },
    {
      "id": "chg_019fdeeb-288b-7ed4-aa0d-61a3af26d75c",
      "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 01:09:41.085632+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-library-of-congress/library-of-congress-mcp#chg-chg_019fdeeb-288b-7ed4-aa0d-61a3af26d75c"
    },
    {
      "id": "chg_019fdeeb-288d-73d2-a771-3cb05482547c",
      "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 01:09:41.085632+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-library-of-congress/library-of-congress-mcp#chg-chg_019fdeeb-288d-73d2-a771-3cb05482547c"
    },
    {
      "id": "chg_019fdeeb-288d-78af-9ba1-0ccf2cd63525",
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      "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": "2026-08-08",
      "occurred_at": "2026-08-08 01:09:41.085632+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-library-of-congress/library-of-congress-mcp#chg-chg_019fdeeb-288d-78af-9ba1-0ccf2cd63525"
    },
    {
      "id": "chg_019fd9c3-2dec-71d7-beb0-403f51937f47",
      "kind": "check.unverifiable",
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      "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"
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      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 01:07:54.962478+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-library-of-congress/library-of-congress-mcp#chg-chg_019fd9c3-2dec-71d7-beb0-403f51937f47"
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    {
      "id": "chg_019fd9c3-2ded-72bc-92c5-8fa0f657650a",
      "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 01:07:54.962478+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-library-of-congress/library-of-congress-mcp#chg-chg_019fd9c3-2ded-72bc-92c5-8fa0f657650a"
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    {
      "id": "chg_019fd9c3-2ded-77b8-af55-7da127544d9b",
      "kind": "tool.description_changed",
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      "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 01:07:54.962478+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-library-of-congress/library-of-congress-mcp#chg-chg_019fd9c3-2ded-77b8-af55-7da127544d9b"
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}