What problem does it solve? Finished plan files pile up in the active plans directory and closed milestones clutter ROADMAP.md, making it hard to see what work remains. This Skill moves completed plans into an archive directory and snapshots closed roadmap milestones, keeping the active workspace clean. ## Core Features & Use Cases - Plan Archiving: Detects plans whose task checkboxes are all complete and moves them to the archive directory with an archived date added to YAML frontmatter. - Roadmap Trimming: Extracts closed milestones from ROADMAP.md into dated snapshot files under the archive's roadmap folder. - Collision Safety: Checks for existing archive files before moving, stopping or skipping instead of overwriting previously archived plans. - Use Case: After finishing a sprint, run the archive command to move all completed plan files out of the active plans folder and snapshot the closed milestones, leaving only in-progress work visible. ## Quick Start Ask the AI to archive all completed plans and trim the closed milestones from the roadmap.