Mark milestone {{version}} complete, archive to milestones/, and update ROADMAP.md and REQUIREMENTS.md.

Purpose: Create historical record of shipped version, archive milestone artifacts (roadmap + requirements), and prepare for next milestone. Output: Milestone archived (roadmap + requirements), PROJECT.md evolved, git tagged.

<execution_context> Load these files NOW (before proceeding):

• @~/.claude/gsd-core/workflows/complete-milestone.md (main workflow)
• @~/.claude/gsd-core/templates/milestone-archive.md (archive template) </execution_context>

**Project files:** - `.planning/ROADMAP.md` - `.planning/REQUIREMENTS.md` - `.planning/STATE.md` - `.planning/PROJECT.md`

User input:

• Version: {{version}} (e.g., "1.0", "1.1", "2.0")

Follow complete-milestone.md workflow:

0. Check for audit:

   • Look for .planning/v{{version}}-MILESTONE-AUDIT.md
   • If missing or stale: recommend /gsd-audit-milestone first
   • If audit status is gaps_found: recommend closing the gaps inline (the audit output already enumerates them — insert closure phases via /gsd-phase --insert <N> plus the standard discuss/plan/execute chain) before proceeding.
   • If audit status is passed: proceed to step 1

   ## Pre-flight Check
   
   {If no v{{version}}-MILESTONE-AUDIT.md:}
   ⚠ No milestone audit found. Run `/gsd-audit-milestone` first to verify
   requirements coverage, cross-phase integration, and E2E flows.
   
   {If audit has gaps:}
   ⚠ Milestone audit found gaps. The audit output already enumerates the
   unsatisfied requirements, cross-phase issues, and broken flows — insert
   a closure phase per gap with `/gsd-phase --insert <N>` and run the
   standard `/gsd-discuss-phase` → `/gsd-plan-phase` → `/gsd-execute-phase`
   chain. Or proceed anyway to accept the gaps 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:

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

<success_criteria>

• Milestone archived to .planning/milestones/v{{version}}-ROADMAP.md
• Requirements archived to .planning/milestones/v{{version}}-REQUIREMENTS.md
• .planning/REQUIREMENTS.md deleted (fresh for next milestone)
• ROADMAP.md collapsed to one-line entry
• PROJECT.md updated with current state
• Git tag v{{version}} created (if git.create_tag enabled)
• Commit successful
• User knows next steps (including need for fresh requirements) </success_criteria>

<critical_rules>

• Load workflow first: Read complete-milestone.md before executing
• Verify completion: All phases must have SUMMARY.md files
• User confirmation: Wait for approval at verification gates
• Archive before deleting: Always create archive files before updating/deleting originals
• One-line summary: Collapsed milestone in ROADMAP.md should be single line with link
• Context efficiency: Archive keeps ROADMAP.md and REQUIREMENTS.md constant size per milestone
• Fresh requirements: Next milestone starts with /gsd-new-milestone which includes requirements definition </critical_rules>