{
  "server": "pipeworx-io-merriam-webster",
  "component": "merriam-webster-mcp",
  "generated_at": "2026-08-03T22:04:14.135Z",
  "tracking_since": "2026-07-26",
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  },
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      "occurred_at": "2026-08-03 02:03:31.139474+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc55c-a5ec-72ab-aba2-cffd5c661b68"
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    {
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      "occurred_at": "2026-08-03 02:03:31.139474+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc55c-a5eb-780e-a8c9-f0fc57c69322"
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    {
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      "occurred_at": "2026-08-03 02:03:31.139474+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc55c-a5eb-730b-ba6f-c514ed097f8d"
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    {
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      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 02:03:31.139474+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc55c-a5ea-7d5f-8b58-be85c5775aad"
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    {
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      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 02:03:31.139474+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc55c-a5ea-7282-a7b7-07a036696beb"
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    {
      "id": "chg_019fc038-dea2-7487-b9eb-11ba71226ca2",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 02:06:20.308242+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc038-dea2-7487-b9eb-11ba71226ca2"
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    {
      "id": "chg_019fc038-dea2-7aa6-8e52-f814f6475386",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 02:06:20.308242+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc038-dea2-7aa6-8e52-f814f6475386"
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    {
      "id": "chg_019fc038-dea3-782a-ab74-420562a8e171",
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      "subject_kind": "server",
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      "materiality": "security",
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      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 02:06:20.308242+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc038-dea3-782a-ab74-420562a8e171"
    },
    {
      "id": "chg_019fc038-dea3-743f-9015-385fcfef17d7",
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      "materiality": "security",
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      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 02:06:20.308242+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc038-dea3-743f-9015-385fcfef17d7"
    },
    {
      "id": "chg_019fc038-dea2-7f11-bd52-8ef2ddf1daf5",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 02:06:20.308242+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fc038-dea2-7f11-bd52-8ef2ddf1daf5"
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    {
      "id": "chg_019fbb11-c822-7dc7-8936-a1ee8a14a0e9",
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      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 02:05:32.561147+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fbb11-c822-7dc7-8936-a1ee8a14a0e9"
    },
    {
      "id": "chg_019fbb11-c824-75c4-b82f-88c9786429ba",
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      "family": "",
      "subject_kind": "server",
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      "from_code": null,
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      "materiality": "security",
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      "detail": {},
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 02:05:32.561147+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fbb11-c824-75c4-b82f-88c9786429ba"
    },
    {
      "id": "chg_019fbb11-c824-701c-86cd-4d649d34d485",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 02:05:32.561147+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fbb11-c824-701c-86cd-4d649d34d485"
    },
    {
      "id": "chg_019fbb11-c823-7a18-a21f-f085cee5725d",
      "kind": "tool.description_changed",
      "family": "",
      "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"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 02:05:32.561147+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fbb11-c823-7a18-a21f-f085cee5725d"
    },
    {
      "id": "chg_019fbb11-c823-7430-956c-b16ce7de1503",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
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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_beta"
      },
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 02:05:32.561147+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fbb11-c823-7430-956c-b16ce7de1503"
    },
    {
      "id": "chg_019fbb11-c822-70e1-8fb8-4102dcc85f6a",
      "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"
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      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 02:05:32.561147+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019fbb11-c822-70e1-8fb8-4102dcc85f6a"
    },
    {
      "id": "chg_019faefc-7f97-754f-8367-ad87de0126d1",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 17:46:51.138236+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faefc-7f97-754f-8367-ad87de0126d1"
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    {
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 17:46:51.138236+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faefc-7f97-713e-92dc-eb6a6a968fad"
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    {
      "id": "chg_019faefc-7f96-7bce-af47-1951b7f4ef52",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 17:46:51.138236+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faefc-7f96-7bce-af47-1951b7f4ef52"
    },
    {
      "id": "chg_019faefc-7f96-7596-b47a-436dfc06c051",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 17:46:51.138236+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faefc-7f96-7596-b47a-436dfc06c051"
    },
    {
      "id": "chg_019faefc-7f97-7a07-bb9c-9abf692ea8ba",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 17:46:51.138236+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faefc-7f97-7a07-bb9c-9abf692ea8ba"
    },
    {
      "id": "chg_019faefc-7f93-7232-8de7-940ea0e65410",
      "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"
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      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 17:46:51.138236+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faefc-7f93-7232-8de7-940ea0e65410"
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    {
      "id": "chg_019faa03-4f4f-7a5e-8b37-09dae1d36fa4",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 18:36:11.456673+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faa03-4f4f-7a5e-8b37-09dae1d36fa4"
    },
    {
      "id": "chg_019faa03-4f51-75c0-a939-161ff48bd77e",
      "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": "2026-07-28",
      "occurred_at": "2026-07-28 18:36:11.456673+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faa03-4f51-75c0-a939-161ff48bd77e"
    },
    {
      "id": "chg_019faa03-4f50-7eb6-bec3-4af293771d25",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "deep_research",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 18:36:11.456673+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faa03-4f50-7eb6-bec3-4af293771d25"
    },
    {
      "id": "chg_019faa03-4f50-732f-bb1a-1b8f0b67ff8b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
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      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-07-28",
      "occurred_at": "2026-07-28 18:36:11.456673+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faa03-4f50-732f-bb1a-1b8f0b67ff8b"
    },
    {
      "id": "chg_019faa03-4f4f-7e15-89d8-378629fd9871",
      "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": "2026-07-28",
      "occurred_at": "2026-07-28 18:36:11.456673+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faa03-4f4f-7e15-89d8-378629fd9871"
    },
    {
      "id": "chg_019faa03-4f4f-747d-ab97-b05884a90634",
      "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": "2026-07-28",
      "occurred_at": "2026-07-28 18:36:11.456673+00",
      "observed_since": "2026-07-27",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-merriam-webster/merriam-webster-mcp#chg-chg_019faa03-4f4f-747d-ab97-b05884a90634"
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}