{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "pipeworx-io-mempool-space",
  "component": "mempool-space-mcp",
  "generated_at": "2026-09-20T20:22:55.434Z",
  "tracking_since": "2026-07-26",
  "counts": {
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    "security": 93,
    "functional": 0,
    "cosmetic": 0
  },
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      "id": "chg_01a09e16-a1f8-7a34-b499-2421f94e68a2",
      "kind": "check.verdict",
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      "from_value": "pass",
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      "materiality": "security",
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        "removed": "41",
        "auth_transport": "0"
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      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 04:04:38.405678+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a09e16-a1f8-7a34-b499-2421f94e68a2"
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      "from_value": "fail",
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      "materiality": "security",
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      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 04:04:38.405678+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a09e16-a1f9-7bde-bddc-87035453995d"
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    {
      "id": "chg_01a09e16-a1fa-71c9-83ab-cabc4db97056",
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      "from_value": "pass",
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      "materiality": "security",
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      "occurred_at": "2026-09-14 04:04:38.405678+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a09e16-a1fa-71c9-83ab-cabc4db97056"
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    {
      "id": "chg_01a098ef-dea3-72b1-bbe7-6d8b06179847",
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      "occurred_at": "2026-09-13 04:04:11.936819+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a098ef-dea3-72b1-bbe7-6d8b06179847"
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    {
      "id": "chg_01a098ef-dea4-70cc-a3f6-925b88625096",
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      "family": "tool-safety-injection",
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      "from_value": "unverified",
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      "occurred_at": "2026-09-13 04:04:11.936819+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a098ef-dea4-70cc-a3f6-925b88625096"
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    {
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      "occurred_at": "2026-09-13 04:04:11.936819+00",
      "observed_since": "2026-09-12",
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      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a098ef-dea4-76e0-b0eb-abc83ec4724b"
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    {
      "id": "chg_01a093ca-11ad-7ba8-9055-beda97e02621",
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      "occurred_at": "2026-09-12 04:04:48.570121+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a093ca-11ad-7ba8-9055-beda97e02621"
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    {
      "id": "chg_01a093ca-11ae-7b5c-bf51-f8614934442e",
      "kind": "check.unverifiable",
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      "subject_kind": "check",
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      "from_code": "auth.none_destructive",
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      "from_value": "fail",
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      "materiality": "security",
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      "occurred_at": "2026-09-12 04:04:48.570121+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a093ca-11ae-7b5c-bf51-f8614934442e"
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    {
      "id": "chg_01a093ca-11af-72bd-96b9-da1802cf17e7",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
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      "from_value": "pass",
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      "materiality": "security",
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      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 04:04:48.570121+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a093ca-11af-72bd-96b9-da1802cf17e7"
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    {
      "id": "chg_01a08ea3-e47c-75ad-a337-6d094292834d",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
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      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
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      "score_delta": null,
      "detail": {
        "tool": "forget"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:05:00.567395+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08ea3-e47c-75ad-a337-6d094292834d"
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    {
      "id": "chg_01a08ea3-e47d-75a2-8fe6-cf60c5494c47",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:05:00.567395+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08ea3-e47d-75a2-8fe6-cf60c5494c47"
    },
    {
      "id": "chg_01a08ea3-e47d-7b16-8bfb-ae35e4524b86",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "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_beta"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:05:00.567395+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08ea3-e47d-7b16-8bfb-ae35e4524b86"
    },
    {
      "id": "chg_01a08ea3-e47e-7091-82c1-c360a3f8cc81",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:05:00.567395+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08ea3-e47e-7091-82c1-c360a3f8cc81"
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    {
      "id": "chg_01a08ea3-e47e-761e-b07f-85865f6e1ded",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "deep_research",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:05:00.567395+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08ea3-e47e-761e-b07f-85865f6e1ded"
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    {
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      "subject_kind": "server",
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 04:05:00.567395+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08ea3-e47e-7b32-a26f-2a5cbd299c2d"
    },
    {
      "id": "chg_01a0897e-157f-741f-9260-7c4b2f620e94",
      "kind": "tool.description_changed",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
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      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:05:36.673466+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a0897e-157f-741f-9260-7c4b2f620e94"
    },
    {
      "id": "chg_01a0897e-1580-7d2e-be30-324d0a87d5d9",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
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      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:05:36.673466+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a0897e-1580-7d2e-be30-324d0a87d5d9"
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    {
      "id": "chg_01a0897e-1581-74f4-a9a1-b35d60cf9911",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
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      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:05:36.673466+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a0897e-1581-74f4-a9a1-b35d60cf9911"
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    {
      "id": "chg_01a0897e-1581-7c20-aeec-4c98aa6c54d5",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
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      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:05:36.673466+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a0897e-1581-7c20-aeec-4c98aa6c54d5"
    },
    {
      "id": "chg_01a0897e-1582-782c-9576-dc401348deed",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
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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": {},
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:05:36.673466+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a0897e-1582-782c-9576-dc401348deed"
    },
    {
      "id": "chg_01a08458-6d6f-7c85-9431-86e164781224",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:06:22.721601+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08458-6d6f-7c85-9431-86e164781224"
    },
    {
      "id": "chg_01a08458-6d70-7f05-9ef4-2f0f222c1e63",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:06:22.721601+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08458-6d70-7f05-9ef4-2f0f222c1e63"
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    {
      "id": "chg_01a08458-6d71-74f6-aa48-7015341fe536",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.stable",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:06:22.721601+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a08458-6d71-74f6-aa48-7015341fe536"
    },
    {
      "id": "chg_01a08458-6d72-7bf9-9b7b-716b11347c96",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 04:06:22.721601+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-mempool-space/mempool-space-mcp#chg-chg_01a08458-6d72-7bf9-9b7b-716b11347c96"
    },
    {
      "id": "chg_01a08458-6d73-70f5-9fb7-66ee5000ab85",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 04:06:22.721601+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-mempool-space/mempool-space-mcp#chg-chg_01a08458-6d73-70f5-9fb7-66ee5000ab85"
    },
    {
      "id": "chg_01a08458-6d73-7520-a112-8712c79da322",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 04:06:22.721601+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-mempool-space/mempool-space-mcp#chg-chg_01a08458-6d73-7520-a112-8712c79da322"
    },
    {
      "id": "chg_01a08458-6d73-78df-a35a-0c2cb528e35f",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 04:06:22.721601+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-mempool-space/mempool-space-mcp#chg-chg_01a08458-6d73-78df-a35a-0c2cb528e35f"
    },
    {
      "id": "chg_01a08458-6d73-7cba-9e7b-dce256180c6d",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 04:06:22.721601+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-mempool-space/mempool-space-mcp#chg-chg_01a08458-6d73-7cba-9e7b-dce256180c6d"
    },
    {
      "id": "chg_01a07f34-373c-7daa-8364-8169cd947f18",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.insufficient_history",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 04:08:43.454111+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a07f34-373c-7daa-8364-8169cd947f18"
    },
    {
      "id": "chg_01a07f34-373d-774f-b159-36439d4d21d5",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.none_unlisted",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 04:08:43.454111+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a07f34-373d-774f-b159-36439d4d21d5"
    },
    {
      "id": "chg_01a07f34-373d-7d1a-85b2-f491f7c7cbcc",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 04:08:43.454111+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a07f34-373d-7d1a-85b2-f491f7c7cbcc"
    },
    {
      "id": "chg_01a07f34-373e-7f2a-bdbb-fc86aa43348d",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "unreachable",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "unreachable",
        "from": "verified"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 04:08:43.454111+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → unreachable)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a07f34-373e-7f2a-bdbb-fc86aa43348d"
    },
    {
      "id": "chg_01a07a0c-82e6-7a66-bc9c-09f8c76271be",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_destructive",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 04:07:15.310876+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a07a0c-82e6-7a66-bc9c-09f8c76271be"
    },
    {
      "id": "chg_01a07a0c-82e8-76b7-bee3-e3646d8ffe86",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 04:07:15.310876+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a07a0c-82e8-76b7-bee3-e3646d8ffe86"
    },
    {
      "id": "chg_01a07a0c-82e8-7ab7-8304-6cc4ee4bdcc2",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.stable",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 04:07:15.310876+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a07a0c-82e8-7ab7-8304-6cc4ee4bdcc2"
    },
    {
      "id": "chg_01a074e5-068f-7eaa-ac14-049626a11280",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.churn",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "30",
        "added": "0",
        "breaks": "0",
        "removed": "41",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 04:06:01.475752+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a074e5-068f-7eaa-ac14-049626a11280"
    },
    {
      "id": "chg_01a074e5-0693-72b7-ba8b-4221f5fd46f2",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.none_unlisted",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 04:06:01.475752+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a074e5-0693-72b7-ba8b-4221f5fd46f2"
    },
    {
      "id": "chg_01a074e5-0693-792d-bc34-b86a45728272",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 04:06:01.475752+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a074e5-0693-792d-bc34-b86a45728272"
    },
    {
      "id": "chg_01a06fbe-f752-7897-ae83-72ccdb3cd407",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 04:06:21.163705+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-mempool-space/mempool-space-mcp#chg-chg_01a06fbe-f752-7897-ae83-72ccdb3cd407"
    },
    {
      "id": "chg_01a06fbe-f753-7319-8ee8-b0092f09fdf5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 04:06:21.163705+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-mempool-space/mempool-space-mcp#chg-chg_01a06fbe-f753-7319-8ee8-b0092f09fdf5"
    },
    {
      "id": "chg_01a06fbe-f753-78d5-bd56-2f5d129abad5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 04:06:21.163705+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-mempool-space/mempool-space-mcp#chg-chg_01a06fbe-f753-78d5-bd56-2f5d129abad5"
    },
    {
      "id": "chg_01a06fbe-f753-7dad-98bc-8438bee06443",
      "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 04:06:21.163705+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-mempool-space/mempool-space-mcp#chg-chg_01a06fbe-f753-7dad-98bc-8438bee06443"
    },
    {
      "id": "chg_01a06fbe-f754-73d2-a336-03ccfcaaa3b8",
      "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 04:06:21.163705+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-mempool-space/mempool-space-mcp#chg-chg_01a06fbe-f754-73d2-a336-03ccfcaaa3b8"
    },
    {
      "id": "chg_01a06a98-79cf-78e7-99a1-d67e01b46d76",
      "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 04:06:12.552884+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a06a98-79cf-78e7-99a1-d67e01b46d76"
    },
    {
      "id": "chg_01a06a98-79d0-7c5d-a68f-43daa417be8c",
      "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 04:06:12.552884+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-mempool-space/mempool-space-mcp#chg-chg_01a06a98-79d0-7c5d-a68f-43daa417be8c"
    },
    {
      "id": "chg_01a06a98-79d1-78d1-aa6d-58b9d11fcc27",
      "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 04:06:12.552884+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-mempool-space/mempool-space-mcp#chg-chg_01a06a98-79d1-78d1-aa6d-58b9d11fcc27"
    },
    {
      "id": "chg_01a06a98-79d1-7d27-8573-12ec4244d7db",
      "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 04:06:12.552884+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-mempool-space/mempool-space-mcp#chg-chg_01a06a98-79d1-7d27-8573-12ec4244d7db"
    },
    {
      "id": "chg_01a06a98-79d2-737f-a294-0d0849bf851d",
      "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 04:06:12.552884+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-mempool-space/mempool-space-mcp#chg-chg_01a06a98-79d2-737f-a294-0d0849bf851d"
    },
    {
      "id": "chg_01a06a98-79d2-7cb0-abf2-a7c31d86d6ca",
      "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 04:06:12.552884+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-mempool-space/mempool-space-mcp#chg-chg_01a06a98-79d2-7cb0-abf2-a7c31d86d6ca"
    },
    {
      "id": "chg_01a06a98-79d3-794d-9e81-59d7030ddfef",
      "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 04:06:12.552884+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-mempool-space/mempool-space-mcp#chg-chg_01a06a98-79d3-794d-9e81-59d7030ddfef"
    },
    {
      "id": "chg_01a06572-2aa1-70dc-b8a4-8903e0ab72df",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:06:15.88223+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a06572-2aa1-70dc-b8a4-8903e0ab72df"
    },
    {
      "id": "chg_01a06572-2aa1-7836-9260-7a02e0208942",
      "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 04:06:15.88223+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-mempool-space/mempool-space-mcp#chg-chg_01a06572-2aa1-7836-9260-7a02e0208942"
    },
    {
      "id": "chg_01a06572-2aa1-7dc4-85d6-a760ca9f76bf",
      "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 04:06:15.88223+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-mempool-space/mempool-space-mcp#chg-chg_01a06572-2aa1-7dc4-85d6-a760ca9f76bf"
    },
    {
      "id": "chg_01a06572-2aa2-7360-a0fa-394414a4b7e8",
      "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 04:06:15.88223+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-mempool-space/mempool-space-mcp#chg-chg_01a06572-2aa2-7360-a0fa-394414a4b7e8"
    },
    {
      "id": "chg_01a06572-2aa2-78c8-9746-934cf09ced7a",
      "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 04:06:15.88223+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-mempool-space/mempool-space-mcp#chg-chg_01a06572-2aa2-78c8-9746-934cf09ced7a"
    },
    {
      "id": "chg_01a06572-2aa2-7d72-b301-98f511dd0cdd",
      "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 04:06:15.88223+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-mempool-space/mempool-space-mcp#chg-chg_01a06572-2aa2-7d72-b301-98f511dd0cdd"
    },
    {
      "id": "chg_01a06572-2aa3-72e7-85c9-0e89a0208932",
      "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 04:06:15.88223+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-mempool-space/mempool-space-mcp#chg-chg_01a06572-2aa3-72e7-85c9-0e89a0208932"
    },
    {
      "id": "chg_01a0604b-7924-730c-9945-3564b82906d7",
      "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 04:05:53.977623+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-mempool-space/mempool-space-mcp#chg-chg_01a0604b-7924-730c-9945-3564b82906d7"
    },
    {
      "id": "chg_01a0604b-7921-7242-9899-cf9e9bf0c672",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "forget"
      },
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 04:05:53.977623+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a0604b-7921-7242-9899-cf9e9bf0c672"
    },
    {
      "id": "chg_01a0604b-7922-7e39-b558-05ff3e832e4f",
      "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 04:05:53.977623+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-mempool-space/mempool-space-mcp#chg-chg_01a0604b-7922-7e39-b558-05ff3e832e4f"
    },
    {
      "id": "chg_01a0604b-7923-75a2-a2a3-4b777f22d71c",
      "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 04:05:53.977623+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-mempool-space/mempool-space-mcp#chg-chg_01a0604b-7923-75a2-a2a3-4b777f22d71c"
    },
    {
      "id": "chg_01a0604b-7923-7bb4-aac5-4f27f4cd631e",
      "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 04:05:53.977623+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-mempool-space/mempool-space-mcp#chg-chg_01a0604b-7923-7bb4-aac5-4f27f4cd631e"
    },
    {
      "id": "chg_01a0604b-7925-7944-9119-e674b44ac457",
      "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 04:05:53.977623+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-mempool-space/mempool-space-mcp#chg-chg_01a0604b-7925-7944-9119-e674b44ac457"
    },
    {
      "id": "chg_01a0604b-7927-77c0-b71b-ab0cf691e6eb",
      "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 04:05:53.977623+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-mempool-space/mempool-space-mcp#chg-chg_01a0604b-7927-77c0-b71b-ab0cf691e6eb"
    },
    {
      "id": "chg_01a05b25-20b4-7d78-b705-86e45341dca3",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-01",
      "occurred_at": "2026-09-01 04:05:54.926625+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a05b25-20b4-7d78-b705-86e45341dca3"
    },
    {
      "id": "chg_01a05b25-20b5-7ecf-8be6-bc285ad99aa4",
      "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 04:05:54.926625+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-mempool-space/mempool-space-mcp#chg-chg_01a05b25-20b5-7ecf-8be6-bc285ad99aa4"
    },
    {
      "id": "chg_01a05b25-20b6-7a78-ac9a-68c772839676",
      "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 04:05:54.926625+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-mempool-space/mempool-space-mcp#chg-chg_01a05b25-20b6-7a78-ac9a-68c772839676"
    },
    {
      "id": "chg_01a05b25-20b7-70ba-9e73-5c24c2cf94cc",
      "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 04:05:54.926625+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-mempool-space/mempool-space-mcp#chg-chg_01a05b25-20b7-70ba-9e73-5c24c2cf94cc"
    },
    {
      "id": "chg_01a05b25-20b7-7ac0-b61c-adc503d5c74a",
      "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 04:05:54.926625+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-mempool-space/mempool-space-mcp#chg-chg_01a05b25-20b7-7ac0-b61c-adc503d5c74a"
    },
    {
      "id": "chg_01a05b25-20b8-71a0-ab45-d1b6c4775623",
      "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 04:05:54.926625+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-mempool-space/mempool-space-mcp#chg-chg_01a05b25-20b8-71a0-ab45-d1b6c4775623"
    },
    {
      "id": "chg_01a055fe-b280-7eff-8f2d-0a6d111e2597",
      "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": "2026-08-31",
      "occurred_at": "2026-08-31 04:05:50.228373+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a055fe-b280-7eff-8f2d-0a6d111e2597"
    },
    {
      "id": "chg_01a055fe-b282-713f-a809-f95c7e612efe",
      "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 04:05:50.228373+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-mempool-space/mempool-space-mcp#chg-chg_01a055fe-b282-713f-a809-f95c7e612efe"
    },
    {
      "id": "chg_01a055fe-b282-772e-be23-ca9890962bf1",
      "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 04:05:50.228373+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-mempool-space/mempool-space-mcp#chg-chg_01a055fe-b282-772e-be23-ca9890962bf1"
    },
    {
      "id": "chg_01a055fe-b283-75cf-808b-d931792ccb6c",
      "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 04:05:50.228373+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-mempool-space/mempool-space-mcp#chg-chg_01a055fe-b283-75cf-808b-d931792ccb6c"
    },
    {
      "id": "chg_01a055fe-b283-7a78-9aa2-109f17869440",
      "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 04:05:50.228373+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-mempool-space/mempool-space-mcp#chg-chg_01a055fe-b283-7a78-9aa2-109f17869440"
    },
    {
      "id": "chg_01a055fe-b283-7e89-81e6-5a3c8c106eb1",
      "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 04:05:50.228373+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-mempool-space/mempool-space-mcp#chg-chg_01a055fe-b283-7e89-81e6-5a3c8c106eb1"
    },
    {
      "id": "chg_01a055fe-b284-732f-919d-f5eaaf34c5b2",
      "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 04:05:50.228373+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-mempool-space/mempool-space-mcp#chg-chg_01a055fe-b284-732f-919d-f5eaaf34c5b2"
    },
    {
      "id": "chg_01a050d8-7f00-7941-8c90-e49a0dac7ccd",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 04:06:00.572299+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a050d8-7f00-7941-8c90-e49a0dac7ccd"
    },
    {
      "id": "chg_01a050d8-7f01-7087-a065-995418871019",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_beta",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_beta"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 04:06:00.572299+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a050d8-7f01-7087-a065-995418871019"
    },
    {
      "id": "chg_01a050d8-7f01-75a5-bef6-7ad868d57bf7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "ask_pipeworx_grounded",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "ask_pipeworx_grounded"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 04:06:00.572299+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a050d8-7f01-75a5-bef6-7ad868d57bf7"
    },
    {
      "id": "chg_01a050d8-7f01-7a94-b6e8-0daa1f5d80cd",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "deep_research",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "deep_research"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 04:06:00.572299+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a050d8-7f01-7a94-b6e8-0daa1f5d80cd"
    },
    {
      "id": "chg_01a050d8-7f02-7022-bf54-a1f871fa547f",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 04:06:00.572299+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a050d8-7f02-7022-bf54-a1f871fa547f"
    },
    {
      "id": "chg_01a04bb2-1e81-7110-a588-e102b3c1d587",
      "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 04:05:59.346397+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-mempool-space/mempool-space-mcp#chg-chg_01a04bb2-1e81-7110-a588-e102b3c1d587"
    },
    {
      "id": "chg_01a04bb2-1e82-76b1-b712-9e37586d3b21",
      "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 04:05:59.346397+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-mempool-space/mempool-space-mcp#chg-chg_01a04bb2-1e82-76b1-b712-9e37586d3b21"
    },
    {
      "id": "chg_01a04bb2-1e84-74bb-8164-230f1453ffd3",
      "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 04:05:59.346397+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-mempool-space/mempool-space-mcp#chg-chg_01a04bb2-1e84-74bb-8164-230f1453ffd3"
    },
    {
      "id": "chg_01a04bb2-1e85-76cb-9fd8-c9d19e1a2f7d",
      "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 04:05:59.346397+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-mempool-space/mempool-space-mcp#chg-chg_01a04bb2-1e85-76cb-9fd8-c9d19e1a2f7d"
    },
    {
      "id": "chg_01a04bb2-1e85-7a78-b65d-f73fb18daa5a",
      "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 04:05:59.346397+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-mempool-space/mempool-space-mcp#chg-chg_01a04bb2-1e85-7a78-b65d-f73fb18daa5a"
    },
    {
      "id": "chg_01a04165-08f8-74c4-94bf-c3e039598c8d",
      "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 04:05:35.565306+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-mempool-space/mempool-space-mcp#chg-chg_01a04165-08f8-74c4-94bf-c3e039598c8d"
    },
    {
      "id": "chg_01a04165-08f8-7e4f-aa3e-65999db6b5a8",
      "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 04:05:35.565306+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-mempool-space/mempool-space-mcp#chg-chg_01a04165-08f8-7e4f-aa3e-65999db6b5a8"
    },
    {
      "id": "chg_01a04165-08f9-754f-8935-242c4e35af25",
      "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 04:05:35.565306+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-mempool-space/mempool-space-mcp#chg-chg_01a04165-08f9-754f-8935-242c4e35af25"
    },
    {
      "id": "chg_01a04165-08f9-7ea4-9ebe-2e2bb4004e3c",
      "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 04:05:35.565306+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-mempool-space/mempool-space-mcp#chg-chg_01a04165-08f9-7ea4-9ebe-2e2bb4004e3c"
    },
    {
      "id": "chg_01a04165-08fa-7390-bd95-85279281d327",
      "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 04:05:35.565306+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-mempool-space/mempool-space-mcp#chg-chg_01a04165-08fa-7390-bd95-85279281d327"
    },
    {
      "id": "chg_01a03718-546f-7172-893c-f7cfa0a5f0f5",
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      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
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      "from_value": "pass",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
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      "detail": {
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      "occurred_at": "2026-08-25 04:05:36.399801+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a03718-546f-7172-893c-f7cfa0a5f0f5"
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    {
      "id": "chg_01a03718-546f-7e4a-b816-d78fb83a7bf5",
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      "from_code": "stability.building_history",
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      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
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      "occurred_at": "2026-08-25 04:05:36.399801+00",
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      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a03718-546f-7e4a-b816-d78fb83a7bf5"
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    {
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      "materiality": "security",
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      "occurred_at": "2026-08-24 04:05:24.991634+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a031f1-cbd2-7a6b-9dfd-bb55ad5fd529"
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    {
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      "from_code": null,
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      "materiality": "security",
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      "score_delta": null,
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        "tool": "ask_pipeworx_beta"
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      "occurred_at": "2026-08-24 04:05:24.991634+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a031f1-cbd3-7294-b8a1-4c9cb76123a3"
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    {
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      "subject_kind": "tool",
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      "from_code": null,
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      "from_value": null,
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      "materiality": "security",
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      "occurred_at": "2026-08-24 04:05:24.991634+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a031f1-cbd3-7803-9156-775fa92317d5"
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    {
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
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      "occurred_at": "2026-08-24 04:05:24.991634+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Tool “deep_research” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a031f1-cbd3-7c94-abba-31eda5691491"
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      "materiality": "security",
      "direction": "neutral",
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      "occurred_at": "2026-08-24 04:05:24.991634+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a031f1-cbd4-7146-aa4a-74d70b0d7d08"
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      "id": "chg_01a02ccb-6e14-7a29-93ba-84b5dd6271df",
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      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 04:05:24.57499+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/pipeworx-io-mempool-space/mempool-space-mcp#chg-chg_01a02ccb-6e14-7a29-93ba-84b5dd6271df"
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