Update Changelog

Update Changelog

Append phase tracking or final summary to thoughts/NNNN-description/changelog.md.

When to Use

During Implementation (after each phase):

• Document what was actually done vs planned
• Note deviations and reasons
• List files changed
• Capture discoveries

At Completion (after all phases):

• Append FINAL SUMMARY section
• Summarize key deviations
• Document lessons learned
• Note technical debt and follow-up work

Phase Update Format

Use template from templates/changelog-document.md Phase section:

## Phase {N}: {Phase Name}
**Completed**: {ISO_DATE}
**Status**: ✅ Complete

### What We Did
- Created slug determination skill
- Added interactive prompting with suggestions

### Deviations from Plan
- **Planned**: Create bash script only
- **Actually**: Created both skill and script
- **Reason**: Skill needed for integration with commands

### Files Changed
- `skills/determine-feature-slug/SKILL.md` - New skill file
- `scripts/next-feature-slug.sh` - Helper script

### Discoveries
- Bash parameter expansion handles leading zeros: `10#$NUM`
- Kebab-case validation regex: `^[a-z0-9-]+$`

Final Summary Format

Use template from templates/changelog-document.md FINAL SUMMARY section:

## 🎯 FINAL SUMMARY
**Completion Date**: 2026-02-05
**Overall Status**: ✅ Complete

### What Was Built
Full plugin restructuring with feature directories, changelog tracking,
milestone grouping, and agent orchestration.

### Key Deviations
1. Added interactive slug prompting (not in original plan)
2. Kept thoughts/notes/ unchanged instead of moving

### Impact on Original Plan
- Plan estimated 11 phases, completed 11
- Added 2 skills not in plan (prompting helpers)
- Simplified 3 phases by combining related changes

[... rest of sections ...]

Important Guidelines

• Read plan first to understand what was intended
• Compare actual vs planned - be specific about deviations
• Capture learnings - what would you do differently?
• Note technical debt - what was compromised for speed?
• Append only - never modify previous phase entries
• Be concise - focus on what matters, skip obvious details

Auto-Correction Loop

The changelog enables auto-correction:

1. Before Phase N: Read both plan.md AND changelog.md
2. Plan shows original intent
3. Changelog shows actual state after Phase N-1
4. Adapt Phase N approach based on actual state
5. After Phase N: Document new deviations

Example:

Phase 3 needs to integrate with auth system
- plan.md says: "Use middleware pattern from Phase 1"
- changelog.md says: "Phase 1 used decorator pattern instead"
- Agent adapts: Uses decorator pattern, not middleware ✅

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