Forensic on 2026-06-30: of the bot's 8 traded names, SEVEN graded F (<0.50) and one B —
it sprayed low-quality chop (SLS F0.12 -$412, RIVN F0.19, BB F0.21, CCXI F0.26 +$374,
NVDX F0.33, NOK F0.48, RDW F0.49; GVH B0.71). The trader made +$616 on SVRE — which the
bot SAW but its 35% gap cap excluded; and even graded, SVRE is F (0.35): low computed
RVOL + no clean pullback structure. So the grade cuts chop but does NOT recognise a
vertical catalyst RUNNER.
Adds ExecutionSettings.min_quality_score (env TRADING_MIN_QUALITY_SCORE, default 0.0 =
off) and a gate in request_approvals_for_ready_signals mirroring the VWAP gate: a signal
scoring below the threshold is skipped and logged rule_type=quality_below; fail-open on a
missing score. 3 tests (skip-low-when-enforced / allow-when-off / allow-at-threshold);
44/44 trading-execution tests green.
Honest scope: this is the "trade less chop" lever (evidence: the bot's own labeled data
has q>=0.55 win ~71% vs q<0.55 ~36%). It will NOT catch SVRE-class leading gainers — the
grade rewards pullback structure the runners lack, and the gap cap excludes them upstream.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
