Create numbered plan files in .docs/planning/plans/ before execution begins.
Standardize how plans are captured. Every significant piece of work should start with a plan file that persists the what/why/how before coding begins.
.docs/planning/plans/#-plan-name.md
Auto-increment by scanning existing files: ls .docs/planning/plans/*.md | wc -l + 1
Draft — just created, awaiting reviewApproved — user reviewed and approvedIn Progress — execution has begunCompleted — all phases done