{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "cyanheads-biorxiv-mcp-server",
  "component": "biorxiv",
  "generated_at": "2026-11-05T11:54:27.171Z",
  "tracking_since": "2026-09-19",
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  },
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      "occurred_at": "2026-10-23 19:00:56.467196+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “biorxiv_get_published_version” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a16a23-3c4d-7222-9440-108c52bed07f"
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    {
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      "occurred_at": "2026-10-23 19:00:56.467196+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “biorxiv_get_fulltext” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a16a23-3c4b-7965-8c05-681c52789bdd"
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    {
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      "occurred_at": "2026-10-23 19:00:56.467196+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “biorxiv_get_preprint” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a16a23-3c4c-7ba6-8837-d6a3ccd27134"
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    {
      "id": "chg_01a16a23-3c4d-7edc-b675-0b0eeb766df8",
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      "detail": {
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      "occurred_at": "2026-10-23 19:00:56.467196+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “biorxiv_list_published_versions” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a16a23-3c4d-7edc-b675-0b0eeb766df8"
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    {
      "id": "chg_01a16a23-3c4e-7bbd-9fef-f886542629c5",
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      "subject": "biorxiv_list_recent",
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      "materiality": "security",
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      "detail": {
        "tool": "biorxiv_list_recent"
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      "occurred_on": "2026-10-23",
      "occurred_at": "2026-10-23 19:00:56.467196+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "Tool “biorxiv_list_recent” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a16a23-3c4e-7bbd-9fef-f886542629c5"
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    {
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      "family": "",
      "subject_kind": "server",
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      "occurred_on": "2026-10-23",
      "occurred_at": "2026-10-23 19:00:56.467196+00",
      "observed_since": "2026-10-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a16a23-3c4f-770f-849c-4f38e2704a52"
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    {
      "id": "chg_01a15267-0ddb-7567-8036-2788eef1229d",
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      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
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      "occurred_at": "2026-10-19 04:24:07.881712+00",
      "observed_since": "2026-10-18",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a15267-0ddb-7567-8036-2788eef1229d"
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    {
      "id": "chg_01a14d85-5893-7741-a858-cde8c284a6d6",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_get_preprint",
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      "materiality": "security",
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      "detail": {
        "tool": "biorxiv_get_preprint"
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      "occurred_on": "2026-10-18",
      "occurred_at": "2026-10-18 05:39:02.607233+00",
      "observed_since": "2026-10-17",
      "source": "scan",
      "summary": "Tool “biorxiv_get_preprint” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a14d85-5893-7741-a858-cde8c284a6d6"
    },
    {
      "id": "chg_01a14d85-58f0-7147-b01b-0536bfbf004c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_list_published_versions",
      "subject_child": "",
      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
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      "detail": {
        "tool": "biorxiv_list_published_versions"
      },
      "occurred_on": "2026-10-18",
      "occurred_at": "2026-10-18 05:39:02.607233+00",
      "observed_since": "2026-10-17",
      "source": "scan",
      "summary": "Tool “biorxiv_list_published_versions” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a14d85-58f0-7147-b01b-0536bfbf004c"
    },
    {
      "id": "chg_01a13faa-3325-77b8-bf42-9af8577a6c7b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_get_fulltext",
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      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "biorxiv_get_fulltext"
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      "occurred_on": "2026-10-15",
      "occurred_at": "2026-10-15 13:04:41.056948+00",
      "observed_since": "2026-10-15",
      "source": "scan",
      "summary": "Tool “biorxiv_get_fulltext” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a13faa-3325-77b8-bf42-9af8577a6c7b"
    },
    {
      "id": "chg_01a13faa-3372-790c-a246-ebb4fecda421",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
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      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-15",
      "occurred_at": "2026-10-15 13:04:41.056948+00",
      "observed_since": "2026-10-15",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a13faa-3372-790c-a246-ebb4fecda421"
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    {
      "id": "chg_01a0cce1-f605-764b-bc02-be8ce0b8180c",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
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      "from_code": null,
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 06:09:15.698543+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a0cce1-f605-764b-bc02-be8ce0b8180c"
    },
    {
      "id": "chg_01a0cce1-f604-722c-8f0e-58ae4b3997cb",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_search_preprints",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "biorxiv_search_preprints"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 06:09:15.698543+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “biorxiv_search_preprints” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a0cce1-f604-722c-8f0e-58ae4b3997cb"
    },
    {
      "id": "chg_01a0cbce-0e8b-7e02-acd5-597b2009ef8c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_list_recent",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "biorxiv_list_recent"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 01:07:54.05474+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "Tool “biorxiv_list_recent” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a0cbce-0e8b-7e02-acd5-597b2009ef8c"
    },
    {
      "id": "chg_01a0cbce-0e8b-7926-b1e0-1daebf7d6441",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_list_categories",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "biorxiv_list_categories"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 01:07:54.05474+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "Tool “biorxiv_list_categories” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a0cbce-0e8b-7926-b1e0-1daebf7d6441"
    },
    {
      "id": "chg_01a0cbce-0e8a-7e64-bb6a-f0bfd676be4c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_get_published_version",
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      "from_code": null,
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "biorxiv_get_published_version"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 01:07:54.05474+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "Tool “biorxiv_get_published_version” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a0cbce-0e8a-7e64-bb6a-f0bfd676be4c"
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    {
      "id": "chg_01a0cbce-0e8a-7973-9a15-a7bf287f72ac",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_get_preprint",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "biorxiv_get_preprint"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 01:07:54.05474+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "Tool “biorxiv_get_preprint” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a0cbce-0e8a-7973-9a15-a7bf287f72ac"
    },
    {
      "id": "chg_01a0cbce-0e88-7d6b-bf17-634c53827dd3",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "biorxiv_get_fulltext",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "biorxiv_get_fulltext"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 01:07:54.05474+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "Tool “biorxiv_get_fulltext” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/cyanheads-biorxiv-mcp-server/biorxiv#chg-chg_01a0cbce-0e88-7d6b-bf17-634c53827dd3"
    }
  ],
  "days": [
    {
      "date": "2026-10-29",
      "total": 89,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-28",
      "total": 89,
      "delta": 3,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 4
    },
    {
      "date": "2026-10-25",
      "total": 86,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-23",
      "total": 86,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 10
    },
    {
      "date": "2026-10-19",
      "total": 86,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-10-18",
      "total": 86,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-10-17",
      "total": 86,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 90,
        "to": 93,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 27,
          "to_days": 28
        },
        "partial": false,
        "compared_to": "2026-10-16",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-15",
      "total": 85,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    }
  ]
}