Design doc for a second M5 entry archetype: enter on retrace to
EMA21/KC-mid in an established trend instead of at Keltner-breakout
extension. Includes detector spec, geometry, validation protocol
(both-halves + quarterly + displacement checks), and the +105R
baseline to beat. Session/frequency knobs (blocked hours, cooldown)
were tested 2026-07-09 and confirmed already optimal — this is the
remaining evidence-backed entry-side direction.
harwinder