{
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  "server": "pipeworx-io-arcgis-chatham",
  "component": "arcgis-chatham-mcp",
  "generated_at": "2026-09-21T09:47:23.234Z",
  "tracking_since": "2026-07-26",
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  },
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      "id": "chg_01a09d49-3e93-7af3-beba-70390e2e9a77",
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      "occurred_at": "2026-09-14 00:20:18.10537+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09d49-3e93-7af3-beba-70390e2e9a77"
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    {
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      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09d49-3e98-70f0-9a8a-096439815d1c"
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    {
      "id": "chg_01a09d49-3e98-7994-953b-6f3dba53b63e",
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      "occurred_at": "2026-09-14 00:20:18.10537+00",
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      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09d49-3e98-7994-953b-6f3dba53b63e"
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    {
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      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09828-edd1-7d70-baef-dc1364501392"
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    {
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      "occurred_at": "2026-09-13 00:26:54.235631+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09828-edd3-7388-ac49-1063c5ebc4a3"
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        "tool": "ask_pipeworx_beta"
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      "occurred_at": "2026-09-13 00:26:54.235631+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09828-edd3-7954-bafc-a154a458221d"
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    {
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        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 00:26:54.235631+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09828-edd3-7dd9-a1b9-530d071f071f"
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    {
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      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 00:26:54.235631+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09828-edd4-72fa-9b55-746756304bb5"
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      "occurred_at": "2026-09-13 00:26:54.235631+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a09828-edd4-773f-b114-eb64db8c4587"
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    {
      "id": "chg_01a092f1-6f67-7795-912c-01c7d7a415b4",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 00:08:11.314323+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a092f1-6f67-7795-912c-01c7d7a415b4"
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    {
      "id": "chg_01a092f1-6f6a-7663-a653-72389aab3a2b",
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      "from_code": null,
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      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 00:08:11.314323+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a092f1-6f6a-7663-a653-72389aab3a2b"
    },
    {
      "id": "chg_01a092f1-6f6b-7338-ad2e-7578107b4c5f",
      "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,
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 00:08:11.314323+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a092f1-6f6b-7338-ad2e-7578107b4c5f"
    },
    {
      "id": "chg_01a092f1-6f6b-7991-98d3-ea69456efc61",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "bet_research",
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      "from_code": null,
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "bet_research"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 00:08:11.314323+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “bet_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a092f1-6f6b-7991-98d3-ea69456efc61"
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    {
      "id": "chg_01a092f1-6f6c-730e-858b-1114606f574a",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 00:08:11.314323+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a092f1-6f6c-730e-858b-1114606f574a"
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    {
      "id": "chg_01a092f1-6f6c-7777-9edf-e41101d4d5fd",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "polymarket_kalshi_spread",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "polymarket_kalshi_spread"
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      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 00:08:11.314323+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a092f1-6f6c-7777-9edf-e41101d4d5fd"
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    {
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      "subject_kind": "server",
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 00:08:11.314323+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a092f1-6f6d-70af-89d1-0b9e7a91ee26"
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    {
      "id": "chg_01a08dcd-ed92-7cba-a4ec-9a308e55f9be",
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      "from_code": null,
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 00:11:18.25483+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a08dcd-ed92-7cba-a4ec-9a308e55f9be"
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    {
      "id": "chg_01a08dcd-ed93-7df0-9e65-7f146ff1e728",
      "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",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 00:11:18.25483+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a08dcd-ed93-7df0-9e65-7f146ff1e728"
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    {
      "id": "chg_01a08dcd-ed94-7396-b190-a0af02155546",
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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_grounded"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 00:11:18.25483+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a08dcd-ed94-7396-b190-a0af02155546"
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    {
      "id": "chg_01a08dcd-ed94-790d-b08e-b6ccb085e01c",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "from_code": null,
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 00:11:18.25483+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a08dcd-ed94-790d-b08e-b6ccb085e01c"
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    {
      "id": "chg_01a08dcd-ed94-7d5e-832d-eda2ddfcd632",
      "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": "2026-09-11",
      "occurred_at": "2026-09-11 00:11:18.25483+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a08dcd-ed94-7d5e-832d-eda2ddfcd632"
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    {
      "id": "chg_01a088ac-7c34-7145-9e03-2ad674ba43e4",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
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      "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"
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      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 00:16:40.429785+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a088ac-7c34-7145-9e03-2ad674ba43e4"
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    {
      "id": "chg_01a088ac-7c36-7c31-a94d-dbf149c173d5",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx",
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      "from_code": null,
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 00:16:40.429785+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a088ac-7c36-7c31-a94d-dbf149c173d5"
    },
    {
      "id": "chg_01a088ac-7c37-7843-8f18-414c537c40fd",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 00:16:40.429785+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a088ac-7c37-7843-8f18-414c537c40fd"
    },
    {
      "id": "chg_01a088ac-7c38-76d4-929b-35c11b775bbb",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 00:16:40.429785+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a088ac-7c38-76d4-929b-35c11b775bbb"
    },
    {
      "id": "chg_01a088ac-7c3d-769d-8195-6130bd1624eb",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 00:16:40.429785+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a088ac-7c3d-769d-8195-6130bd1624eb"
    },
    {
      "id": "chg_01a088ac-7c3e-7224-a946-be57db3fa87d",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 00:16:40.429785+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a088ac-7c3e-7224-a946-be57db3fa87d"
    },
    {
      "id": "chg_01a08383-a43b-7b86-a092-7a13032807ff",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 00:13:57.639427+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a08383-a43b-7b86-a092-7a13032807ff"
    },
    {
      "id": "chg_01a08383-a43c-7ce2-b442-37eea479ebe0",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 00:13:57.639427+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a08383-a43c-7ce2-b442-37eea479ebe0"
    },
    {
      "id": "chg_01a08383-a43d-7380-8bf6-aa459e00357f",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.stable",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 00:13:57.639427+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a08383-a43d-7380-8bf6-aa459e00357f"
    },
    {
      "id": "chg_01a07e5a-724d-7b85-8541-f91d8c8da578",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_unlisted",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 00:10:51.767601+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07e5a-724d-7b85-8541-f91d8c8da578"
    },
    {
      "id": "chg_01a07e5a-724f-74ae-9578-3e4cecc84864",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.churn",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "30",
        "added": "0",
        "breaks": "0",
        "removed": "34",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 00:10:51.767601+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07e5a-724f-74ae-9578-3e4cecc84864"
    },
    {
      "id": "chg_01a07e5a-724f-7e6e-9ac5-99bad06c9982",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 00:10:51.767601+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07e5a-724f-7e6e-9ac5-99bad06c9982"
    },
    {
      "id": "chg_01a07409-181e-7c44-a82c-1aba8e7dc5e2",
      "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 00:05:47.754096+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07409-181e-7c44-a82c-1aba8e7dc5e2"
    },
    {
      "id": "chg_01a07409-1820-72b1-aff6-7881bb9f5ed9",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 00:05:47.754096+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07409-1820-72b1-aff6-7881bb9f5ed9"
    },
    {
      "id": "chg_01a07409-1820-7bbb-8a3b-6a65c8816f3c",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 00:05:47.754096+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07409-1820-7bbb-8a3b-6a65c8816f3c"
    },
    {
      "id": "chg_01a07409-1822-788f-8cca-bd5334a47281",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 00:05:47.754096+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07409-1822-788f-8cca-bd5334a47281"
    },
    {
      "id": "chg_01a07409-1822-7edc-9feb-8563d297b9a0",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 00:05:47.754096+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07409-1822-7edc-9feb-8563d297b9a0"
    },
    {
      "id": "chg_01a07409-1823-75be-9a02-f557158a2d91",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 00:05:47.754096+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a07409-1823-75be-9a02-f557158a2d91"
    },
    {
      "id": "chg_01a06ee3-bc2a-710a-90f2-ccbf624d810d",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 00:06:53.641291+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a06ee3-bc2a-710a-90f2-ccbf624d810d"
    },
    {
      "id": "chg_01a06ee3-bc2b-7bd1-a9bf-bf2807a0f308",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 00:06:53.641291+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a06ee3-bc2b-7bd1-a9bf-bf2807a0f308"
    },
    {
      "id": "chg_01a06ee3-bc2f-74af-b529-f5ff10adcb29",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 00:06:53.641291+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a06ee3-bc2f-74af-b529-f5ff10adcb29"
    },
    {
      "id": "chg_01a06ee3-bc2f-79c2-9bd7-46426d336893",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 00:06:53.641291+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a06ee3-bc2f-79c2-9bd7-46426d336893"
    },
    {
      "id": "chg_01a06ee3-bc33-774b-8e54-e45349c5d2b2",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 00:06:53.641291+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a06ee3-bc33-774b-8e54-e45349c5d2b2"
    },
    {
      "id": "chg_01a069c1-9098-7b4d-a498-698afd27c4bd",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 00:11:28.236637+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a069c1-9098-7b4d-a498-698afd27c4bd"
    },
    {
      "id": "chg_01a069c1-909a-707d-8605-7058bf09d4a9",
      "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 00:11:28.236637+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a069c1-909a-707d-8605-7058bf09d4a9"
    },
    {
      "id": "chg_01a069c1-909b-74ea-b17f-f52f2c4bf183",
      "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 00:11:28.236637+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a069c1-909b-74ea-b17f-f52f2c4bf183"
    },
    {
      "id": "chg_01a069c1-909b-79ea-8fa2-f44a06542d90",
      "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 00:11:28.236637+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a069c1-909b-79ea-8fa2-f44a06542d90"
    },
    {
      "id": "chg_01a069c1-909b-7e6a-bb93-007977ac1641",
      "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 00:11:28.236637+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a069c1-909b-7e6a-bb93-007977ac1641"
    },
    {
      "id": "chg_01a069c1-909c-73a7-b8d4-1cea2a7da084",
      "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 00:11:28.236637+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a069c1-909c-73a7-b8d4-1cea2a7da084"
    },
    {
      "id": "chg_01a069c1-909d-7747-850d-22e57005ed2f",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 00:11:28.236637+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a069c1-909d-7747-850d-22e57005ed2f"
    },
    {
      "id": "chg_01a069c1-909d-7c84-88c4-966e330e68aa",
      "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 00:11:28.236637+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a069c1-909d-7c84-88c4-966e330e68aa"
    },
    {
      "id": "chg_01a0649c-7bbc-7b59-8de0-f59e2e6bfcf8",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 00:12:51.956045+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a0649c-7bbc-7b59-8de0-f59e2e6bfcf8"
    },
    {
      "id": "chg_01a0649c-7bbe-74eb-9e07-fba8db1a7c7f",
      "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 00:12:51.956045+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a0649c-7bbe-74eb-9e07-fba8db1a7c7f"
    },
    {
      "id": "chg_01a0649c-7bbe-7c16-bba5-5269b5f66133",
      "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 00:12:51.956045+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a0649c-7bbe-7c16-bba5-5269b5f66133"
    },
    {
      "id": "chg_01a0649c-7bbf-77ab-b5e1-6f155598f1e2",
      "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 00:12:51.956045+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a0649c-7bbf-77ab-b5e1-6f155598f1e2"
    },
    {
      "id": "chg_01a0649c-7bc0-736e-a931-b4fe34e44081",
      "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 00:12:51.956045+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a0649c-7bc0-736e-a931-b4fe34e44081"
    },
    {
      "id": "chg_01a0649c-7bc0-7b1b-b697-5b2c8b1925ed",
      "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 00:12:51.956045+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a0649c-7bc0-7b1b-b697-5b2c8b1925ed"
    },
    {
      "id": "chg_01a05f71-d557-745a-9aa4-37aee7db319d",
      "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": "2026-09-02",
      "occurred_at": "2026-09-02 00:08:10.788552+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05f71-d557-745a-9aa4-37aee7db319d"
    },
    {
      "id": "chg_01a05f71-d558-7a54-98eb-84950d8b8a1d",
      "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 00:08:10.788552+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05f71-d558-7a54-98eb-84950d8b8a1d"
    },
    {
      "id": "chg_01a05f71-d559-76ad-b965-c41afa854c75",
      "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 00:08:10.788552+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05f71-d559-76ad-b965-c41afa854c75"
    },
    {
      "id": "chg_01a05f71-d55b-7a82-abcc-5b0e09e892cb",
      "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 00:08:10.788552+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05f71-d55b-7a82-abcc-5b0e09e892cb"
    },
    {
      "id": "chg_01a05f71-d55e-7bff-a242-43438ead01f6",
      "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 00:08:10.788552+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05f71-d55e-7bff-a242-43438ead01f6"
    },
    {
      "id": "chg_01a05f71-d55f-7e92-bbb7-4ca58f024f52",
      "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 00:08:10.788552+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05f71-d55f-7e92-bbb7-4ca58f024f52"
    },
    {
      "id": "chg_01a05f71-d560-7e57-a5e1-7c8169b564f2",
      "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 00:08:10.788552+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05f71-d560-7e57-a5e1-7c8169b564f2"
    },
    {
      "id": "chg_01a05a4a-0611-7b7d-b519-428d0233581e",
      "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 00:06:35.759848+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05a4a-0611-7b7d-b519-428d0233581e"
    },
    {
      "id": "chg_01a05a4a-0613-7152-9f24-a59c3156a710",
      "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 00:06:35.759848+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05a4a-0613-7152-9f24-a59c3156a710"
    },
    {
      "id": "chg_01a05a4a-0613-771e-b091-fb6912e5144e",
      "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 00:06:35.759848+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05a4a-0613-771e-b091-fb6912e5144e"
    },
    {
      "id": "chg_01a05a4a-0613-7baf-881a-19cfa79f10dc",
      "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 00:06:35.759848+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05a4a-0613-7baf-881a-19cfa79f10dc"
    },
    {
      "id": "chg_01a05a4a-0614-70fb-9504-5d4c11fcffcc",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 00:06:35.759848+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05a4a-0614-70fb-9504-5d4c11fcffcc"
    },
    {
      "id": "chg_01a05a4a-0614-764f-bad2-acbe7e8ee925",
      "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 00:06:35.759848+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05a4a-0614-764f-bad2-acbe7e8ee925"
    },
    {
      "id": "chg_01a05524-7656-7c0e-9fc2-771cbb4c959a",
      "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 00:07:27.927156+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05524-7656-7c0e-9fc2-771cbb4c959a"
    },
    {
      "id": "chg_01a05524-766e-740d-9d34-fc09a88d5730",
      "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 00:07:27.927156+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05524-766e-740d-9d34-fc09a88d5730"
    },
    {
      "id": "chg_01a05524-7683-7da7-9c04-f69922f7215b",
      "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 00:07:27.927156+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05524-7683-7da7-9c04-f69922f7215b"
    },
    {
      "id": "chg_01a05524-7687-72c5-baa9-21423d6d9179",
      "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 00:07:27.927156+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05524-7687-72c5-baa9-21423d6d9179"
    },
    {
      "id": "chg_01a05524-7694-74ed-b681-a3f501d6d115",
      "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 00:07:27.927156+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a05524-7694-74ed-b681-a3f501d6d115"
    },
    {
      "id": "chg_01a04ffd-7d80-7c22-9f84-d2c0bab6b520",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 00:06:47.889004+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ffd-7d80-7c22-9f84-d2c0bab6b520"
    },
    {
      "id": "chg_01a04ffd-7d81-7c84-9c50-3329222221a7",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 00:06:47.889004+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ffd-7d81-7c84-9c50-3329222221a7"
    },
    {
      "id": "chg_01a04ffd-7d82-7102-b258-eedb683727e3",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 00:06:47.889004+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ffd-7d82-7102-b258-eedb683727e3"
    },
    {
      "id": "chg_01a04ffd-7d82-74b8-8836-fa4a2b676d08",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 00:06:47.889004+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ffd-7d82-74b8-8836-fa4a2b676d08"
    },
    {
      "id": "chg_01a04ffd-7d82-7879-9d79-493700a38fef",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 00:06:47.889004+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ffd-7d82-7879-9d79-493700a38fef"
    },
    {
      "id": "chg_01a04ad6-e900-7d25-8eb2-83d76bed1d3d",
      "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 00:06:33.39801+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ad6-e900-7d25-8eb2-83d76bed1d3d"
    },
    {
      "id": "chg_01a04ad6-e902-759d-8428-cc945815f825",
      "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 00:06:33.39801+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ad6-e902-759d-8428-cc945815f825"
    },
    {
      "id": "chg_01a04ad6-e904-708d-99d7-688ce4cf053a",
      "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 00:06:33.39801+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ad6-e904-708d-99d7-688ce4cf053a"
    },
    {
      "id": "chg_01a04ad6-e904-78d6-a67c-178e96fd1c16",
      "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 00:06:33.39801+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ad6-e904-78d6-a67c-178e96fd1c16"
    },
    {
      "id": "chg_01a04ad6-e905-7263-bf8b-d6275206fdc0",
      "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 00:06:33.39801+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04ad6-e905-7263-bf8b-d6275206fdc0"
    },
    {
      "id": "chg_01a045b0-0732-7aaa-819e-cf3af4f7cf6a",
      "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": "2026-08-28",
      "occurred_at": "2026-08-28 00:05:58.710722+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a045b0-0732-7aaa-819e-cf3af4f7cf6a"
    },
    {
      "id": "chg_01a04088-6666-7819-aaa1-1fdd924a161b",
      "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 00:04:35.975071+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04088-6666-7819-aaa1-1fdd924a161b"
    },
    {
      "id": "chg_01a04088-666c-764b-af4b-abe53600099b",
      "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 00:04:35.975071+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04088-666c-764b-af4b-abe53600099b"
    },
    {
      "id": "chg_01a04088-666d-7258-9de3-6f3e7f557d73",
      "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 00:04:35.975071+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04088-666d-7258-9de3-6f3e7f557d73"
    },
    {
      "id": "chg_01a04088-666f-7b2f-8e57-54acaf4f6c72",
      "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 00:04:35.975071+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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04088-666f-7b2f-8e57-54acaf4f6c72"
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      "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-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a04088-6670-73a5-9d1f-1dad1c67f67f"
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      "summary": "Stability (0.97 → pass)",
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      "source": "scan",
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      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
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      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-arcgis-chatham/arcgis-chatham-mcp#chg-chg_01a03115-e496-7dda-a6fd-f263b97a971d"
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