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  "artifacts": {
    "events": null,
    "trades": "stop-backtest-conservative-trades.csv.gz",
    "coverage": "stop-backtest-conservative-coverage.csv",
    "equity": "stop-backtest-conservative-equity.csv.gz",
    "report": "stop-backtest-conservative-report.md",
    "availability": "Large capture/event/trade/equity files are task-local; reproduce with the runner and verified capture. Summary only is committed."
  }
}