Mid-task rollback points — save/restore state before risky ops (refactors, migrations, destructive edits). For end-of-session save use /handoff. Triggers "checkpoint", "snapshot", "before this risky op", "rollback to", "list checkpoints", pre-refactor save.
$npx -y skills add darkroomengineering/cc-settings --skill checkpointInstalls into the current project.
Run `npx skills use "https://github.com/darkroomengineering/cc-settings" --skill "darkroomengineering/cc-settings/checkpoint"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/darkroomengineering/cc-settings" that are relevant to the current task. Run `npx skills add "https://github.com/darkroomengineering/cc-settings"` and select the relevant skills, then follow their instructions.