CLAUDE.md had grown to 4,046 lines, ~3,300 of them per-component write-ups: why a breakpoint is 500px, why a cap is a quarter, what a spec once missed. Every session loaded all of it, and the rules that apply to every change were buried among decisions that apply to one. Those write-ups were already duplicated as comments beside the code they describe -- every issue number they cite also appears in a code comment -- so they are deleted rather than moved. What is left is the tracker workflow, the commands, the verification tiers and a set of broad engineering rules distilled from them, each pointing at where its example lives. Three declined decisions recorded nowhere else go to NOTES.md, and three code comments that cited CLAUDE.md sections by name no longer do. Closes #256 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>