/recap

Generates a one-line summary of the current session on demand.

Best use

Back from a meeting and lost track: /recap.

/clearStart a fresh conversation (the old one stays resumable)
/compactSummarize a long conversation to free space
/contextSee what is filling the context window
/planGet a plan first; edits wait for your approval
/resumeGo back to an earlier conversation
/rewindUndo: roll code and conversation back
/autocompactSets how full the context window gets before automatic compaction, e.g.
/branchCreates a branch of the conversation at this point and switches into it; the original is preserved and reachable via /resume.