gsd-cleanup

You can archive completed milestone phase directories by moving them from `.planning/phases/` into versioned milestone storage under `.planning/milestones/v{X.Y}-phases/` to keep your planning data uncluttered. The process identifies accumulated phases and requires user confirmation before archiving.

The best way to clean up leftover planning phase directories is to use a dry-run summary to review what will be archived, then confirm the execution to move them into versioned milestone storage. This prevents accidental re-organization of your filesystem.

Yes, you can preview what gets archived by generating a dry-run summary that identifies accumulated phase directories from completed milestones. This summary shows exactly what will be moved into `.planning/milestones/v{X.Y}-phases/` before any changes are made.

Yes, milestone phase cleanup requires manual confirmation before archiving to prevent accidental re-organization. The Skill performs end-to-end identification of phase directories and produces a summary, but only archives them after you explicitly approve the action.

You should archive phase directories into versioned milestone storage when your `.planning/phases/` directory has leftover folders from earlier completed milestones. This applies to planning-workflow cleanups where accumulated phase directories need to be organized into `.planning/milestones/v{X.Y}-phases/`.