{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "emidlabs-backtest-mcp",
  "component": "mcp",
  "generated_at": "2026-09-21T00:28:19.396Z",
  "tracking_since": "2026-07-27",
  "counts": {
    "critical": 0,
    "security": 15,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a089b8-323e-7150-9b6d-05571e18b4ba",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 05:09:05.10131+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_01a089b8-323e-7150-9b6d-05571e18b4ba"
    },
    {
      "id": "chg_01a0751d-f92a-7695-b8a7-90167c773b01",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 05:08:13.537716+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_01a0751d-f92a-7695-b8a7-90167c773b01"
    },
    {
      "id": "chg_01a06084-de9f-72fe-8612-582d38b3a6de",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_confirmation_source_signals",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_confirmation_source_signals"
      },
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 05:08:35.481789+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool “get_confirmation_source_signals” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_01a06084-de9f-72fe-8612-582d38b3a6de"
    },
    {
      "id": "chg_01a05b5e-8e66-7df3-b94c-77882dca0847",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "submit_backtest",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "submit_backtest"
      },
      "occurred_on": "2026-09-01",
      "occurred_at": "2026-09-01 05:08:38.566879+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “submit_backtest” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_01a05b5e-8e66-7df3-b94c-77882dca0847"
    },
    {
      "id": "chg_01a05b5e-8e69-76b5-bea5-2a504037de03",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "submit_backtest_batch",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "submit_backtest_batch"
      },
      "occurred_on": "2026-09-01",
      "occurred_at": "2026-09-01 05:08:38.566879+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Tool “submit_backtest_batch” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_01a05b5e-8e69-76b5-bea5-2a504037de03"
    },
    {
      "id": "chg_01a003d2-708f-7cd3-a39d-38f25ba1141f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_backtest_result",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_backtest_result"
      },
      "occurred_on": "2026-08-15",
      "occurred_at": "2026-08-15 05:08:38.139765+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Tool “get_backtest_result” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_01a003d2-708f-7cd3-a39d-38f25ba1141f"
    },
    {
      "id": "chg_01a003d2-7090-7892-a0cc-e462dc12f769",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "submit_backtest",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "submit_backtest"
      },
      "occurred_on": "2026-08-15",
      "occurred_at": "2026-08-15 05:08:38.139765+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "Tool “submit_backtest” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_01a003d2-7090-7892-a0cc-e462dc12f769"
    },
    {
      "id": "chg_019ffeab-e7fe-739d-8b11-386517289306",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_backtest_result",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_backtest_result"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 05:08:26.645136+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Tool “get_backtest_result” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_019ffeab-e7fe-739d-8b11-386517289306"
    },
    {
      "id": "chg_019fe4eb-228f-7a66-9bb3-1dd5dbf46153",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.insufficient_history",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 05:07:22.841055+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Stability (fail → unverified)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_019fe4eb-228f-7a66-9bb3-1dd5dbf46153"
    },
    {
      "id": "chg_019fe4eb-2290-791a-b1f1-312b52d285c9",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.http_error",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "status": "503",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 05:07:22.841055+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_019fe4eb-2290-791a-b1f1-312b52d285c9"
    },
    {
      "id": "chg_019fe4eb-2290-7e60-aeca-f09ead849171",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_no_destructive",
      "to_code": "auth.none_unlisted",
      "from_value": "partial",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 05:07:22.841055+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Authorization (partial → unverified)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_019fe4eb-2290-7e60-aeca-f09ead849171"
    },
    {
      "id": "chg_019fe4eb-2292-7b88-8ce4-01784705f931",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 05:07:22.841055+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_019fe4eb-2292-7b88-8ce4-01784705f931"
    },
    {
      "id": "chg_019fda9e-35a7-77f5-a152-ec94a3834ef8",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "0.1.0",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "0.1.0",
      "to_value": "0.1.0",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "0",
        "version": "0.1.0",
        "breaking": "2"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 05:07:09.269348+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 0.1.0)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_019fda9e-35a7-77f5-a152-ec94a3834ef8"
    },
    {
      "id": "chg_019faecb-a0b0-77b6-b863-263cffc93b1c",
      "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": "0",
        "breaks": "3",
        "removed": "0",
        "auth_transport": "0"
      },
      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 16:53:28.35296+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "Stability (0.03 → fail)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_019faecb-a0b0-77b6-b863-263cffc93b1c"
    },
    {
      "id": "chg_019faecb-a0b5-7d25-82e0-0506123036fc",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "0.1.0",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "0.1.0",
      "to_value": "0.1.0",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "0",
        "version": "0.1.0",
        "breaking": "3"
      },
      "occurred_on": "2026-07-29",
      "occurred_at": "2026-07-29 16:53:28.35296+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 0.1.0)",
      "link": "https://verifymcp.io/servers/emidlabs-backtest-mcp/mcp#chg-chg_019faecb-a0b5-7d25-82e0-0506123036fc"
    }
  ],
  "days": [
    {
      "date": "2026-09-10",
      "total": 85,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-09",
      "total": 85,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 93,
        "to": 97,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 28,
          "to_days": 29
        },
        "partial": false,
        "compared_to": "2026-09-08",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-08",
      "total": 84,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-06",
      "total": 85,
      "delta": 5,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-02",
      "total": 80,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-01",
      "total": 80,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-08-28",
      "total": 80,
      "delta": 2,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 46,
        "to": 63,
        "delta": 17,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-08-27",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 46 to 63."
      },
      "event_count": 0
    },
    {
      "date": "2026-08-26",
      "total": 78,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}