User revisions to design spec from this session:
1. §2.1 — split anchor into realistic (200 ms, 1 tick) and stress (400 ms,
1.5 tick). Realistic remains the hard verdict gate; stress grades the Pass
into Pass-robust vs Pass-nominal.
2. §2.2 — expand metrics from Sharpe-only to four: annualized daily Sharpe
and max-drawdown are hard gates (median across windows > 1.0 and < 20%
respectively); Sortino and profit factor are diagnostics. Per-window
summary.json schema extended.
3. §2.6 — verdict emitter rewrites to two-anchor logic, tiered output:
Pass-robust / Pass-nominal / Fail-inconclusive / Fail / Fail-degenerate.
4. §3.3 — added max-dd computation and zero-trade-window failure modes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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