{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "pipeworx-io-klaviyo",
  "component": "klaviyo-mcp",
  "generated_at": "2026-09-20T14:11:58.515Z",
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      "id": "chg_01a089be-a8f0-7eef-9bd1-431979f082e1",
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      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a089be-a8f0-7eef-9bd1-431979f082e1"
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      "id": "chg_01a089be-a8f2-715b-bf96-9643951c3053",
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    {
      "id": "chg_01a089be-a8f3-787e-8d0b-4648d38bbfcb",
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      "observed_since": "2026-09-09",
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    {
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    {
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      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
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    {
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      "occurred_at": "2026-09-09 05:16:03.501063+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a08498-3892-71ae-a410-428830fdc852"
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    {
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      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a08498-3892-7a99-941e-67b688b349e8"
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    {
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        "tool": "deep_research"
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      "occurred_at": "2026-09-09 05:16:03.501063+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a08498-3893-7581-ba47-9e3550680866"
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    {
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      "occurred_at": "2026-09-09 05:16:03.501063+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a08498-3893-7c6b-bb29-2c74a42cd146"
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    {
      "id": "chg_01a07f74-6e37-766d-808f-ac0895bb3929",
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      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 05:18:51.797338+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07f74-6e37-766d-808f-ac0895bb3929"
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    {
      "id": "chg_01a07f74-6e39-70b7-9fbf-08f9ec7185df",
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      "subject_kind": "tool",
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      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 05:18:51.797338+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07f74-6e39-70b7-9fbf-08f9ec7185df"
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    {
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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": "2026-09-08",
      "occurred_at": "2026-09-08 05:18:51.797338+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07f74-6e3a-7064-9da1-761177b5981d"
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    {
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      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "deep_research"
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      "occurred_at": "2026-09-08 05:18:51.797338+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07f74-6e3a-7433-a1be-2f6e3dafc2dd"
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      "subject_kind": "server",
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      "materiality": "security",
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      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 05:18:51.797338+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07f74-6e3a-77dc-8042-3ffd2f6e1603"
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    {
      "id": "chg_01a07a4d-84ad-7808-a32b-6ed0017505ff",
      "kind": "check.reverified",
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      "subject_kind": "check",
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      "from_code": "auth.none_unlisted",
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      "materiality": "critical",
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      "detail": {
        "tool": "forget"
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      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 05:18:15.558735+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07a4d-84ad-7808-a32b-6ed0017505ff"
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    {
      "id": "chg_01a07a4d-84af-76d1-b302-85af5ed68946",
      "kind": "check.reverified",
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      "from_code": "toolsafety.unreachable",
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      "materiality": "security",
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      "occurred_at": "2026-09-07 05:18:15.558735+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07a4d-84af-76d1-b302-85af5ed68946"
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    {
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      "occurred_at": "2026-09-07 05:18:15.558735+00",
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      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07a4d-84b0-706b-b87e-d3d17ab63a27"
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      "from_code": "stability.stable",
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      "occurred_at": "2026-09-06 05:14:32.286287+00",
      "observed_since": "2026-09-05",
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      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07523-c0d1-7f0a-91a1-588b7daa828a"
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    {
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      "subject_kind": "check",
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      "from_code": "auth.none_destructive",
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      "from_value": "fail",
      "to_value": "unverified",
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      "occurred_at": "2026-09-06 05:14:32.286287+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07523-c0d4-7d63-99c3-686180e46376"
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    {
      "id": "chg_01a07523-c0d5-7335-8c2b-e302e80785a3",
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      "subject_kind": "check",
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      "from_code": "toolsafety.injection_clean",
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      "from_value": "pass",
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      "occurred_at": "2026-09-06 05:14:32.286287+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a07523-c0d5-7335-8c2b-e302e80785a3"
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    {
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      "subject_kind": "tool",
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      "materiality": "security",
      "direction": "neutral",
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      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 05:15:00.792374+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-klaviyo/klaviyo-mcp#chg-chg_01a06ffd-d63b-7eac-b56a-6816a9e63cdf"
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      "subject_kind": "tool",
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      "materiality": "security",
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      "occurred_at": "2026-09-05 05:15:00.792374+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-klaviyo/klaviyo-mcp#chg-chg_01a06ffd-d658-75ab-aa0e-ba1a438ea799"
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      "materiality": "security",
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      "occurred_at": "2026-09-05 05:15:00.792374+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-klaviyo/klaviyo-mcp#chg-chg_01a06ffd-d66d-782c-8664-b0d33fae6ed4"
    },
    {
      "id": "chg_01a06ffd-d67b-7edc-b0aa-987718074ff7",
      "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 05:15:00.792374+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-klaviyo/klaviyo-mcp#chg-chg_01a06ffd-d67b-7edc-b0aa-987718074ff7"
    },
    {
      "id": "chg_01a06ffd-d67c-7dcd-ad87-99748a9dfb06",
      "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 05:15:00.792374+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-klaviyo/klaviyo-mcp#chg-chg_01a06ffd-d67c-7dcd-ad87-99748a9dfb06"
    },
    {
      "id": "chg_01a06ad6-ed78-704c-b806-1dc53221d352",
      "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 05:14:25.254999+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a06ad6-ed78-704c-b806-1dc53221d352"
    },
    {
      "id": "chg_01a06ad6-ed7a-7619-ad4e-afc201ac1a82",
      "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 05:14:25.254999+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-klaviyo/klaviyo-mcp#chg-chg_01a06ad6-ed7a-7619-ad4e-afc201ac1a82"
    },
    {
      "id": "chg_01a06ad6-ed7a-7b7d-bd65-2480bef3a415",
      "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 05:14:25.254999+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-klaviyo/klaviyo-mcp#chg-chg_01a06ad6-ed7a-7b7d-bd65-2480bef3a415"
    },
    {
      "id": "chg_01a06ad6-ed7b-720c-aad6-dd22bc1f56e0",
      "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 05:14:25.254999+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-klaviyo/klaviyo-mcp#chg-chg_01a06ad6-ed7b-720c-aad6-dd22bc1f56e0"
    },
    {
      "id": "chg_01a06ad6-ed7d-7ca8-acdc-a30d2966a2c7",
      "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 05:14:25.254999+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-klaviyo/klaviyo-mcp#chg-chg_01a06ad6-ed7d-7ca8-acdc-a30d2966a2c7"
    },
    {
      "id": "chg_01a06ad6-ed7e-732c-ae69-fb8df621630c",
      "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 05:14:25.254999+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-klaviyo/klaviyo-mcp#chg-chg_01a06ad6-ed7e-732c-ae69-fb8df621630c"
    },
    {
      "id": "chg_01a06ad6-ed7f-7b0d-9837-8384f133d456",
      "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 05:14:25.254999+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-klaviyo/klaviyo-mcp#chg-chg_01a06ad6-ed7f-7b0d-9837-8384f133d456"
    },
    {
      "id": "chg_01a065b0-24fe-75f6-84c2-c53a5af657f0",
      "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 05:13:57.523902+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-klaviyo/klaviyo-mcp#chg-chg_01a065b0-24fe-75f6-84c2-c53a5af657f0"
    },
    {
      "id": "chg_01a065b0-2500-7454-a901-940931d73ca4",
      "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 05:13:57.523902+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-klaviyo/klaviyo-mcp#chg-chg_01a065b0-2500-7454-a901-940931d73ca4"
    },
    {
      "id": "chg_01a065b0-2502-749b-9f1a-190ef791ef3a",
      "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 05:13:57.523902+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-klaviyo/klaviyo-mcp#chg-chg_01a065b0-2502-749b-9f1a-190ef791ef3a"
    },
    {
      "id": "chg_01a065b0-2502-78e4-9845-4ede526c7b44",
      "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 05:13:57.523902+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-klaviyo/klaviyo-mcp#chg-chg_01a065b0-2502-78e4-9845-4ede526c7b44"
    },
    {
      "id": "chg_01a065b0-2502-7da5-a1d2-8baf71e9f3a5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "polymarket_kalshi_spread",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "polymarket_kalshi_spread"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 05:13:57.523902+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a065b0-2502-7da5-a1d2-8baf71e9f3a5"
    },
    {
      "id": "chg_01a065b0-2503-779f-963b-f468dbb4b6a4",
      "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 05:13:57.523902+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-klaviyo/klaviyo-mcp#chg-chg_01a065b0-2503-779f-963b-f468dbb4b6a4"
    },
    {
      "id": "chg_01a06089-a586-7437-bfae-e9253de88415",
      "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 05:13:48.557288+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-klaviyo/klaviyo-mcp#chg-chg_01a06089-a586-7437-bfae-e9253de88415"
    },
    {
      "id": "chg_01a06089-a587-7e02-901f-3de771f8ffc1",
      "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 05:13:48.557288+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-klaviyo/klaviyo-mcp#chg-chg_01a06089-a587-7e02-901f-3de771f8ffc1"
    },
    {
      "id": "chg_01a06089-a588-7479-8a7e-d5e76c30b7a4",
      "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 05:13:48.557288+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-klaviyo/klaviyo-mcp#chg-chg_01a06089-a588-7479-8a7e-d5e76c30b7a4"
    },
    {
      "id": "chg_01a06089-a588-795a-8a9a-83f084ba4304",
      "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 05:13:48.557288+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-klaviyo/klaviyo-mcp#chg-chg_01a06089-a588-795a-8a9a-83f084ba4304"
    },
    {
      "id": "chg_01a06089-a588-7dce-822d-148172a80578",
      "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 05:13:48.557288+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-klaviyo/klaviyo-mcp#chg-chg_01a06089-a588-7dce-822d-148172a80578"
    },
    {
      "id": "chg_01a06089-a589-7954-89c8-13b4f2e1fef8",
      "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 05:13:48.557288+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-klaviyo/klaviyo-mcp#chg-chg_01a06089-a589-7954-89c8-13b4f2e1fef8"
    },
    {
      "id": "chg_01a05b63-5447-7dda-a708-34020caf5356",
      "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 05:13:51.361983+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-klaviyo/klaviyo-mcp#chg-chg_01a05b63-5447-7dda-a708-34020caf5356"
    },
    {
      "id": "chg_01a05b63-5448-7506-bdc9-5b0925dbe75b",
      "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 05:13:51.361983+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-klaviyo/klaviyo-mcp#chg-chg_01a05b63-5448-7506-bdc9-5b0925dbe75b"
    },
    {
      "id": "chg_01a05b63-5448-79a3-851e-dd7cd0b20b12",
      "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 05:13:51.361983+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-klaviyo/klaviyo-mcp#chg-chg_01a05b63-5448-79a3-851e-dd7cd0b20b12"
    },
    {
      "id": "chg_01a05b63-5448-7ef8-af18-d603b4f0d674",
      "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 05:13:51.361983+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-klaviyo/klaviyo-mcp#chg-chg_01a05b63-5448-7ef8-af18-d603b4f0d674"
    },
    {
      "id": "chg_01a05b63-5449-780a-a630-49984e267b02",
      "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 05:13:51.361983+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-klaviyo/klaviyo-mcp#chg-chg_01a05b63-5449-780a-a630-49984e267b02"
    },
    {
      "id": "chg_01a0563b-f139-7c67-a4ea-3ac6c5f58a00",
      "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 05:12:43.859215+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-klaviyo/klaviyo-mcp#chg-chg_01a0563b-f139-7c67-a4ea-3ac6c5f58a00"
    },
    {
      "id": "chg_01a0563b-f13c-7b45-8776-6db2d5cba2a6",
      "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 05:12:43.859215+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-klaviyo/klaviyo-mcp#chg-chg_01a0563b-f13c-7b45-8776-6db2d5cba2a6"
    },
    {
      "id": "chg_01a0563b-f13f-76ca-8970-72a004718169",
      "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 05:12:43.859215+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-klaviyo/klaviyo-mcp#chg-chg_01a0563b-f13f-76ca-8970-72a004718169"
    },
    {
      "id": "chg_01a0563b-f140-7dcc-83fb-83e18e8ed145",
      "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 05:12:43.859215+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-klaviyo/klaviyo-mcp#chg-chg_01a0563b-f140-7dcc-83fb-83e18e8ed145"
    },
    {
      "id": "chg_01a0563b-f145-757f-9b0a-3f8318593451",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "polymarket_kalshi_spread",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "polymarket_kalshi_spread"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 05:12:43.859215+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a0563b-f145-757f-9b0a-3f8318593451"
    },
    {
      "id": "chg_01a0563b-f145-7b58-8c2c-45b159e0e344",
      "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 05:12:43.859215+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-klaviyo/klaviyo-mcp#chg-chg_01a0563b-f145-7b58-8c2c-45b159e0e344"
    },
    {
      "id": "chg_01a05115-e91b-7c24-ae60-dffcb7c8090a",
      "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": "2026-08-30",
      "occurred_at": "2026-08-30 05:13:05.44653+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a05115-e91b-7c24-ae60-dffcb7c8090a"
    },
    {
      "id": "chg_01a04bef-9cec-72fe-ba53-96597a69ae6f",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-08-29",
      "occurred_at": "2026-08-29 05:13:09.473462+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a04bef-9cec-72fe-ba53-96597a69ae6f"
    },
    {
      "id": "chg_01a04bef-9cee-7829-8720-8a4bcc855b54",
      "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 05:13:09.473462+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-klaviyo/klaviyo-mcp#chg-chg_01a04bef-9cee-7829-8720-8a4bcc855b54"
    },
    {
      "id": "chg_01a04bef-9cef-72eb-aa7a-f16d06cea739",
      "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 05:13:09.473462+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-klaviyo/klaviyo-mcp#chg-chg_01a04bef-9cef-72eb-aa7a-f16d06cea739"
    },
    {
      "id": "chg_01a04bef-9cef-77db-8a25-18689f11fe49",
      "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 05:13:09.473462+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-klaviyo/klaviyo-mcp#chg-chg_01a04bef-9cef-77db-8a25-18689f11fe49"
    },
    {
      "id": "chg_01a04bef-9cef-7c4a-aef0-2e9c46003c25",
      "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 05:13:09.473462+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-klaviyo/klaviyo-mcp#chg-chg_01a04bef-9cef-7c4a-aef0-2e9c46003c25"
    },
    {
      "id": "chg_01a04bef-9cf0-7146-adab-796e52953f10",
      "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 05:13:09.473462+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-klaviyo/klaviyo-mcp#chg-chg_01a04bef-9cf0-7146-adab-796e52953f10"
    },
    {
      "id": "chg_01a041a2-82c2-72fe-b6e6-6c52df14703d",
      "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 05:12:44.391315+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-klaviyo/klaviyo-mcp#chg-chg_01a041a2-82c2-72fe-b6e6-6c52df14703d"
    },
    {
      "id": "chg_01a041a2-82c3-72e0-922f-0d0ae408a8c4",
      "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 05:12:44.391315+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-klaviyo/klaviyo-mcp#chg-chg_01a041a2-82c3-72e0-922f-0d0ae408a8c4"
    },
    {
      "id": "chg_01a041a2-82c3-785f-8b03-7efbabe21f1a",
      "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 05:12:44.391315+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-klaviyo/klaviyo-mcp#chg-chg_01a041a2-82c3-785f-8b03-7efbabe21f1a"
    },
    {
      "id": "chg_01a041a2-82c3-7ce3-99d1-5d2b20925d2b",
      "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 05:12:44.391315+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-klaviyo/klaviyo-mcp#chg-chg_01a041a2-82c3-7ce3-99d1-5d2b20925d2b"
    },
    {
      "id": "chg_01a041a2-82c4-7205-b6ea-e37605ad9008",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 05:12:44.391315+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a041a2-82c4-7205-b6ea-e37605ad9008"
    },
    {
      "id": "chg_01a03755-bba5-77f5-a66d-0f436c2e04ce",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 05:12:40.347829+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a03755-bba5-77f5-a66d-0f436c2e04ce"
    },
    {
      "id": "chg_01a02d08-9d03-774f-89ba-a1e57fab9221",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 05:12:14.269974+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a02d08-9d03-774f-89ba-a1e57fab9221"
    },
    {
      "id": "chg_01a02d08-9d03-7d7d-bcf1-a28b6a6e003f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 05:12:14.269974+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a02d08-9d03-7d7d-bcf1-a28b6a6e003f"
    },
    {
      "id": "chg_01a02d08-9d04-7354-9773-7cdbd7edb8ca",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 05:12:14.269974+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a02d08-9d04-7354-9773-7cdbd7edb8ca"
    },
    {
      "id": "chg_01a02d08-9d04-78af-9c3b-7f3435c05154",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 05:12:14.269974+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a02d08-9d04-78af-9c3b-7f3435c05154"
    },
    {
      "id": "chg_01a02d08-9d04-7dd3-aab0-01cc48fb527c",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 05:12:14.269974+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a02d08-9d04-7dd3-aab0-01cc48fb527c"
    },
    {
      "id": "chg_01a027e2-423c-7c79-bf06-bc348b884e13",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive_unverified",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 05:12:14.551551+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a027e2-423c-7c79-bf06-bc348b884e13"
    },
    {
      "id": "chg_01a027e2-423d-756e-a822-984e05c0defa",
      "kind": "check.appeared",
      "family": "auth-registration",
      "subject_kind": "check",
      "subject": "auth-registration",
      "subject_child": "",
      "from_code": null,
      "to_code": "auth.registration_cimd",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 05:12:14.551551+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "First check of Authorization (pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a027e2-423d-756e-a822-984e05c0defa"
    },
    {
      "id": "chg_01a027e2-423d-7b02-8eb1-38e17ca22b35",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 05:12:14.551551+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a027e2-423d-7b02-8eb1-38e17ca22b35"
    },
    {
      "id": "chg_01a027e2-423e-7199-ba00-43a15e310264",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 05:12:14.551551+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a027e2-423e-7199-ba00-43a15e310264"
    },
    {
      "id": "chg_01a027e2-423e-7710-8d76-fe3cafaa6037",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 05:12:14.551551+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a027e2-423e-7710-8d76-fe3cafaa6037"
    },
    {
      "id": "chg_01a027e2-423e-7c0f-a1d5-db3a3c91e5d2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 05:12:14.551551+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a027e2-423e-7c0f-a1d5-db3a3c91e5d2"
    },
    {
      "id": "chg_01a027e2-423f-7b2d-be00-6dff41179976",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 05:12:14.551551+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a027e2-423f-7b2d-be00-6dff41179976"
    },
    {
      "id": "chg_01a022bb-4d0c-7918-9928-a766efc1514f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 05:11:35.313611+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a022bb-4d0c-7918-9928-a766efc1514f"
    },
    {
      "id": "chg_01a022bb-4d0d-7863-b206-0d5ab8d10c55",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 05:11:35.313611+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a022bb-4d0d-7863-b206-0d5ab8d10c55"
    },
    {
      "id": "chg_01a022bb-4d0d-7d90-8770-71016a31c02b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 05:11:35.313611+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a022bb-4d0d-7d90-8770-71016a31c02b"
    },
    {
      "id": "chg_01a022bb-4d0e-72a7-b72a-8ab48670bbfb",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 05:11:35.313611+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a022bb-4d0e-72a7-b72a-8ab48670bbfb"
    },
    {
      "id": "chg_01a022bb-4d0e-7731-949c-67fbccdf195d",
      "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",
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      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 05:11:35.313611+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a022bb-4d0e-7731-949c-67fbccdf195d"
    },
    {
      "id": "chg_01a01d97-8fca-7ca9-a7f2-8469050e240a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 05:14:26.791532+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a01d97-8fca-7ca9-a7f2-8469050e240a"
    },
    {
      "id": "chg_01a01d97-8fcd-7544-80d6-a5a0444965ed",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 05:14:26.791532+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a01d97-8fcd-7544-80d6-a5a0444965ed"
    },
    {
      "id": "chg_01a01d97-8fcd-7bd3-9a08-021546334fe6",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 05:14:26.791532+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a01d97-8fcd-7bd3-9a08-021546334fe6"
    },
    {
      "id": "chg_01a01d97-8fce-7225-b30f-8ceaf12c986b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 05:14:26.791532+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a01d97-8fce-7225-b30f-8ceaf12c986b"
    },
    {
      "id": "chg_01a01d97-8fd1-7518-afc7-405dfbbe9124",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 05:14:26.791532+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a01d97-8fd1-7518-afc7-405dfbbe9124"
    },
    {
      "id": "chg_01a0186f-8d52-7d3d-a2c0-58eeaaa83226",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-19",
      "occurred_at": "2026-08-19 05:12:38.847288+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a0186f-8d52-7d3d-a2c0-58eeaaa83226"
    },
    {
      "id": "chg_01a0186f-8d53-7378-a7a6-b13ad2efb5ae",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-19",
      "occurred_at": "2026-08-19 05:12:38.847288+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a0186f-8d53-7378-a7a6-b13ad2efb5ae"
    },
    {
      "id": "chg_01a0186f-8d54-78ca-83bd-bccb99a89487",
      "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": {
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      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a0186f-8d54-78ca-83bd-bccb99a89487"
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      "occurred_at": "2026-08-19 05:12:38.847288+00",
      "observed_since": "2026-08-18",
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      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a0186f-8d54-7d0f-8a40-090ee5b69463"
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      "observed_since": "2026-08-18",
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      "observed_since": "2026-08-17",
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      "observed_since": "2026-08-17",
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      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
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      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-klaviyo/klaviyo-mcp#chg-chg_01a01349-af07-72e8-9a73-0db62ffff014"
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