assay_tradelog

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Use this when you have a raw fill or trade log and want it scanned for internal contradictions -- look-ahead timestamps, pnl that disagrees with the row's own prices, duplicate or out-of-order fills. Interrogate a raw fill log for internal contradictions -- no candles needed. assay_preflight lints shape, assay_reproduce audits arithmetic against candles; this tool needs nothing but the log itself and asks whether it is internally consistent: exact duplicate fills (double counting inflates every headline number: tradelog_duplicate_fills), time travel (exits before entries, decisions stamped AFTER the entry they supposedly caused: tradelog_time_travel -- the anatomy of a look-ahead), PnL or return_pct contradicting the row's own prices (tradelog_pnl_inconsistent), naive/unparseable/future timestamps (tradelog_timestamps_invalid -- ambiguous clocks are the top source of fake edges), and fills booked outside the declared calendar (tradelog_outside_calendar, e.g. weekend fills under trading_calendar='weekdays'). Checks run only where fields exist and the report SAYS which ran (checks_run) -- an absent field is untestable, never innocent. Demote-only: a defect-free log earns 'conditional', because internal consistency is NOT evidence of an edge. Code-computed; no ledger write; structurally invalid input is refunded. NOT financial advice. Price: per check; see https://api.alphaassay.com/v1/meta/pricing (api_key required -- account setup at https://api.alphaassay.com/account).