diff --git a/.sisyphus/plans/modifier-profiles-t3.md b/.sisyphus/plans/modifier-profiles-t3.md
index 442cea7..5066db2 100644
--- a/.sisyphus/plans/modifier-profiles-t3.md
+++ b/.sisyphus/plans/modifier-profiles-t3.md
@@ -410,7 +410,7 @@ Wave FINAL (4 parallel reviewers):
 
   **Commit**: `feat(engine): multi-profile stacking`
 
-- [ ] 24. **Server custom-modifier.register handler**
+- [x] 24. **Server custom-modifier.register handler**
 
   **What to do**: 
   - New WS message `custom-modifier.register` with full descriptor payload
@@ -461,7 +461,7 @@ Wave FINAL (4 parallel reviewers):
 
   **Commit**: `feat(ui): multi-profile stacking in lobby`
 
-- [ ] 28. **Aura engine integration**
+- [x] 28. **Aura engine integration**
 
   **What to do**: `packages/chess/src/modifiers/auras.ts` — `computeAuraFacts(session)` runs after every move via pseudo-preset. Walks all aura-primitive-declared modifiers, finds affected pieces within radius, updates derived facts.