What problem does it solve? Over time, the .planning/phases/ directory accumulates phase folders from milestones that are already finished, cluttering the active workspace and making it hard to see current work. This Skill archives those completed phase directories into organized milestone storage. ## Core Features & Use Cases - Milestone Detection: Identifies which milestones are complete and which phase directories belong to them. - Dry-Run Summary: Shows a preview of what will be archived before making any changes, so nothing is moved by surprise. - Confirmed Archiving: Moves phase directories into .planning/milestones/v{X.Y}-phases/ only after user confirmation. - Use Case: After shipping version 1.2 of a project, your .planning/phases/ folder still holds six old phase directories. Run this Skill to review them and archive them under .planning/milestones/v1.2-phases/. ## Quick Start Ask the assistant to clean up and archive the phase directories from completed milestones in the .planning folder.