{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "ltd-qianyuan-qy-evolution",
  "component": "qianyuan",
  "generated_at": "2026-10-01T21:41:46.566Z",
  "tracking_since": "2026-09-11",
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  },
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      "summary": "Tool “qy_board” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0e0d4-8ef9-7ce2-a905-a1cb46961122"
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    {
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      "observed_since": "2026-09-25",
      "source": "scan",
      "summary": "Tool “qy_pitfall” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0dbae-bf62-78ca-bfac-f4dc21b0bcf6"
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    {
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      "occurred_at": "2026-09-26 03:07:37.637186+00",
      "observed_since": "2026-09-25",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0dbae-bf65-720e-8d6b-8e4d4b92e248"
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    {
      "id": "chg_01a0cc3b-7239-7150-9954-9c7dc93bb0fe",
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      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 03:07:22.965474+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "Tool “qy_register” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0cc3b-7239-7150-9954-9c7dc93bb0fe"
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    {
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      "occurred_at": "2026-09-23 03:07:22.965474+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0cc3b-7239-7984-badb-e263a775bfcf"
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    {
      "id": "chg_01a0bff9-e314-75e4-bf20-1500564c6d37",
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      "detail": {
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      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_bid” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e314-75e4-bf20-1500564c6d37"
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    {
      "id": "chg_01a0bff9-e316-73c5-bbac-397c6a2404bf",
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      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_board” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e316-73c5-bbac-397c6a2404bf"
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    {
      "id": "chg_01a0bff9-e317-710b-b20e-d6f69cf42a57",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "qy_cancel"
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_cancel” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e317-710b-b20e-d6f69cf42a57"
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    {
      "id": "chg_01a0bff9-e317-7dd3-8b16-aefb027b069e",
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      "detail": {
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_capability” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e317-7dd3-8b16-aefb027b069e"
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    {
      "id": "chg_01a0bff9-e319-7c63-8dab-4a18810940f5",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "qy_claim"
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_claim” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e319-7c63-8dab-4a18810940f5"
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    {
      "id": "chg_01a0bff9-e31a-7a70-ad76-7ef5cf6b72c6",
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      "detail": {
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_deliver” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e31a-7a70-ad76-7ef5cf6b72c6"
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    {
      "id": "chg_01a0bff9-e31b-7abb-adbc-eb0b4d8af698",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_me” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e31b-7abb-adbc-eb0b4d8af698"
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    {
      "id": "chg_01a0bff9-e31c-7b93-bf9b-46c376c083f2",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_pitfall” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e31c-7b93-bf9b-46c376c083f2"
    },
    {
      "id": "chg_01a0bff9-e31e-7130-a562-8786a2f0808e",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "qy_publish",
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      "from_code": null,
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      "materiality": "security",
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      "detail": {
        "tool": "qy_publish"
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_publish” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e31e-7130-a562-8786a2f0808e"
    },
    {
      "id": "chg_01a0bff9-e320-72ab-980a-91393541852e",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_register” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e320-72ab-980a-91393541852e"
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    {
      "id": "chg_01a0bff9-e320-7748-8011-fdc156f44444",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_result” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e320-7748-8011-fdc156f44444"
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    {
      "id": "chg_01a0bff9-e322-7600-844a-09bab0613091",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
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      "from_code": null,
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_start” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e322-7600-844a-09bab0613091"
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    {
      "id": "chg_01a0bff9-e323-714e-b468-74a26b6137a9",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 18:00:19.482985+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “qy_verify” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0bff9-e323-714e-b468-74a26b6137a9"
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    {
      "id": "chg_01a0ba65-a8e6-713e-a787-e60e3bcb0a20",
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      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 16:00:19.659272+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “qy_bid” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ba65-a8e6-713e-a787-e60e3bcb0a20"
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    {
      "id": "chg_01a0ba65-a8e6-7a6c-ab76-402cce0013b3",
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      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 16:00:19.659272+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “qy_board” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ba65-a8e6-7a6c-ab76-402cce0013b3"
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    {
      "id": "chg_01a0ba65-a8e7-75ef-bf4f-0acacc2c3035",
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 16:00:19.659272+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “qy_capability” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ba65-a8e7-75ef-bf4f-0acacc2c3035"
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    {
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      "materiality": "security",
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      "detail": {
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      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 16:00:19.659272+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “qy_deliver” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ba65-a8e7-7c10-8a2e-e13b050d90c0"
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    {
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      "materiality": "security",
      "direction": "neutral",
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      "detail": {
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      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 16:00:19.659272+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “qy_me” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ba65-a8e8-72ac-9052-1b9b93b8c04d"
    },
    {
      "id": "chg_01a0ba65-a8e8-7bf3-a29f-cb2674ebe38c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "qy_pitfall",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "qy_pitfall"
      },
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 16:00:19.659272+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “qy_pitfall” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ba65-a8e8-7bf3-a29f-cb2674ebe38c"
    },
    {
      "id": "chg_01a0ba65-a8e9-7239-a82f-a16e6a2f7ad3",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "qy_register",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "qy_register"
      },
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 16:00:19.659272+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “qy_register” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ba65-a8e9-7239-a82f-a16e6a2f7ad3"
    },
    {
      "id": "chg_01a0ba65-a8e9-7709-b762-b2597bcc270b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "qy_result",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "qy_result"
      },
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 16:00:19.659272+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “qy_result” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ba65-a8e9-7709-b762-b2597bcc270b"
    },
    {
      "id": "chg_01a0b79c-830b-7d66-b3d8-eeeae5609f1c",
      "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": "2026-09-19",
      "occurred_at": "2026-09-19 03:01:22.768355+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0b79c-830b-7d66-b3d8-eeeae5609f1c"
    },
    {
      "id": "chg_01a0ad4f-9b0d-7d80-a98b-121e191e0b9b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "qy_register",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "qy_register"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 03:01:10.451129+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Tool “qy_register” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ad4f-9b0d-7d80-a98b-121e191e0b9b"
    },
    {
      "id": "chg_01a0ad4f-9b0e-7c74-b348-3b67b582549e",
      "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": "2026-09-17",
      "occurred_at": "2026-09-17 03:01:10.451129+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0ad4f-9b0e-7c74-b348-3b67b582549e"
    },
    {
      "id": "chg_01a0a829-3b6d-72d6-b378-3fe92f5facfe",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "qy_register",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "qy_register"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 03:01:09.393292+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Tool “qy_register” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0a829-3b6d-72d6-b378-3fe92f5facfe"
    },
    {
      "id": "chg_01a0a829-3b6f-7e6c-9994-adf527442d1a",
      "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": "2026-09-16",
      "occurred_at": "2026-09-16 03:01:09.393292+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a0a829-3b6f-7e6c-9994-adf527442d1a"
    },
    {
      "id": "chg_01a09b48-71b4-7a99-8b0f-82ac40034648",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.03",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "2",
        "added": "4",
        "breaks": "0",
        "removed": "8",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Stability (0.03 → fail)",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b4-7a99-8b0f-82ac40034648"
    },
    {
      "id": "chg_01a09b48-71b6-7754-b56e-6a8ec4c9e0ec",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "assess_skill",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "assess_skill"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “assess_skill” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b6-7754-b56e-6a8ec4c9e0ec"
    },
    {
      "id": "chg_01a09b48-71b6-7c6f-bd94-eb65076046ff",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "find_result",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "find_result"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “find_result” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b6-7c6f-bd94-eb65076046ff"
    },
    {
      "id": "chg_01a09b48-71b7-72da-a274-67fb7c9e1497",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_rubric",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "get_rubric"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “get_rubric” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b7-72da-a274-67fb7c9e1497"
    },
    {
      "id": "chg_01a09b48-71b7-78b6-92e5-78a3420e5443",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "leaderboard",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "leaderboard"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “leaderboard” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b7-78b6-92e5-78a3420e5443"
    },
    {
      "id": "chg_01a09b48-71b7-7d1b-9938-88925e255724",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "publish_result",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "publish_result"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “publish_result” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b7-7d1b-9938-88925e255724"
    },
    {
      "id": "chg_01a09b48-71b8-721d-a7ce-cfb39abfdd86",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "query_experience",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "query_experience"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “query_experience” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b8-721d-a7ce-cfb39abfdd86"
    },
    {
      "id": "chg_01a09b48-71b8-77e3-ba1f-b1163c68cc54",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "query_trust",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "query_trust"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “query_trust” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b8-77e3-ba1f-b1163c68cc54"
    },
    {
      "id": "chg_01a09b48-71b8-7cef-b8b9-672ac362bacd",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "recommend_skill",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "recommend_skill"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “recommend_skill” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b8-7cef-b8b9-672ac362bacd"
    },
    {
      "id": "chg_01a09b48-71b9-7167-a27f-9eef6f391f52",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "share_pitfall",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "share_pitfall"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “share_pitfall” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b9-7167-a27f-9eef6f391f52"
    },
    {
      "id": "chg_01a09b48-71b9-75e1-893e-4d7b6804cc95",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "verify_claim",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "verify_claim"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “verify_claim” was removed",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71b9-75e1-893e-4d7b6804cc95"
    },
    {
      "id": "chg_01a09b48-71bb-71e1-b832-607f68b72fb6",
      "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": "2026-09-13",
      "occurred_at": "2026-09-13 15:00:11.022639+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/ltd-qianyuan-qy-evolution/qianyuan#chg-chg_01a09b48-71bb-71e1-b832-607f68b72fb6"
    }
  ],
  "days": [
    {
      "date": "2026-09-28",
      "total": 60,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-27",
      "total": 60,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
    },
    {
      "date": "2026-09-26",
      "total": 60,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-09-25",
      "total": 60,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-23",
      "total": 60,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-09-20",
      "total": 60,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 36
    },
    {
      "date": "2026-09-19",
      "total": 60,
      "delta": -2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 22
    },
    {
      "date": "2026-09-17",
      "total": 62,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    }
  ]
}