diff --git a/openspec/changes/code-review-fix/tasks.md b/openspec/changes/code-review-fix/tasks.md
index 29e1018..3284f9f 100644
--- a/openspec/changes/code-review-fix/tasks.md
+++ b/openspec/changes/code-review-fix/tasks.md
@@ -117,7 +117,7 @@
 - [x] 12.9 `[haiku]` Add `activeChartId` to primitive cleanup effect dependency arrays in `CandleChart.tsx:1059-1110`
 - [x] 12.10 `[sonnet]` Implement or remove no-op Tooltip component in `ui/tooltip.tsx` (replace with Radix Tooltip if used)
 - [x] 12.11 `[haiku]` Remove `eslint-disable` in `TrainingPanel.tsx:128-129`, include stable callbacks in dependency array
-- [ ] 12.12 `[haiku]` Remove dead filter code (TODO comment, no-op) in `page.tsx:49-53`
+- [x] 12.12 `[haiku]` Remove dead filter code (TODO comment, no-op) in `page.tsx:49-53`
 
 ## 13. Package & Dependencies