Adoption bar TIERED (user-approved): 1.5sigma for count-flat tweaks in validated mechanisms; 2sigma+controls for new mechanisms; report-only for count/label-process at any sigma

agent_reports_bgkf/FRONTIER.md

@@ -109,7 +109,17 @@ Also dead: z-scores (weaker vrel), building relatives, dynamics ranks.
   level carries prevalence info the count rule needs)
 - tau partner (toxic), dthaz partner (inert), rf/gbm partners on champion (~0)
 
-## Cross-lane rules (unchanged)
+## Cross-lane rules
 1. Re-read before each new candidate. 2. Compose on the leader where
 compatible. 3. Wins beyond 1.5*SE: also run frontier-composed. 4. Winners
 with ANY count movement: run the value-anchored twin before believing.
+
+## ADOPTION BAR - TIERED (user-approved 2026-08-23 afternoon)
+- ~1.5 sigma: count-flat PARAMETER TWEAKS inside already-validated
+  mechanisms (e.g. blend weights) - bounded downside, EV-positive near a
+  deadline. Sign check still applies (mean-negative with losing W/L is
+  vetoed regardless).
+- 2 sigma + anchored-twin/count controls: NEW ordering mechanisms or
+  features.
+- Report-only at ANY sigma: count-coupled and label-process wins (the
+  classes behind all four public refutations).