gad:complete-milestone

Follow complete-milestone.md workflow:

0. Check for audit:

   • Look for .planning/v{{version}}-MILESTONE-AUDIT.md
   • If missing or stale: recommend /gad:audit-milestone first
   • If audit status is gaps_found: recommend /gad:plan-milestone-gaps first
   • If audit status is passed: proceed to step 1

   ## Pre-flight Check
   
   {If no v{{version}}-MILESTONE-AUDIT.md:}
   ⚠ No milestone audit found. Run `/gad:audit-milestone` first to verify
   requirements coverage, cross-phase integration, and E2E flows.
   
   {If audit has gaps:}
   ⚠ Milestone audit found gaps. Run `/gad:plan-milestone-gaps` to create
   phases that close the gaps, or proceed anyway to accept as tech debt.
   
   {If audit passed:}
   ✓ Milestone audit passed. Proceeding with completion.
   

1. Verify readiness:

   • Check all phases in milestone have completed plans (SUMMARY.md exists)
   • Present milestone scope and stats
   • Wait for confirmation

2. Gather stats:

   • Count phases, plans, tasks
   • Calculate git range, file changes, LOC
   • Extract timeline from git log
   • Present summary, confirm

3. Extract accomplishments:

   • Read all phase SUMMARY.md files in milestone range
   • Extract 4-6 key accomplishments
   • Present for approval

4. Archive milestone:

   • Create .planning/milestones/v{{version}}-ROADMAP.md
   • Extract full phase details from ROADMAP.md
   • Fill milestone-archive.md template
   • Update ROADMAP.md to one-line summary with link

5. Archive requirements:

   • Create .planning/milestones/v{{version}}-REQUIREMENTS.md
   • Mark all v1 requirements as complete (checkboxes checked)
   • Note requirement outcomes (validated, adjusted, dropped)
   • Delete .planning/REQUIREMENTS.md (fresh one created for next milestone)

6. Update PROJECT.md:

   • Add "Current State" section with shipped version
   • Add "Next Milestone Goals" section
   • Archive previous content in <details> (if v1.1+)

7. Commit and tag:

   • Stage: MILESTONES.md, PROJECT.md, ROADMAP.md, STATE.md, archive files
   • Commit: chore: archive v{{version}} milestone
   • Tag: git tag -a v{{version}} -m "[milestone summary]"
   • Ask about pushing tag

8. Offer next steps:

   • /gad:new-milestone — start next milestone (questioning → research → requirements → roadmap)