Check whether files are claimed by another agent. FREE means safe to edit; HELD tells you who has them and until when.

Claim files or glob patterns before editing them, so parallel agents don't collide. Returns GRANTED with an expiry, or DENIED with who holds the files, why, and until when. Re-claiming the same patterns renews your lease.

Save a lesson for future agents as a markdown file under .dibs/lessons/ (committed with the repo, shared via git). Record gotchas, conventions, and hard-won fixes — not routine work logs.

Search lessons recorded by previous agents before working in unfamiliar territory. Returns ranked matches with snippets.

Broadcast a short note to every agent working on this repo. Use it for handoffs and heads-ups that affect others.

Read notes from other agents (marks them read). Check at the start of a session and before starting new work.

Release your claims when you finish working on an area, so other agents can proceed. Leases also expire on their own.

See the whole picture: active agents on this repo, every live claim with expiry, and your unread note count. Call this at the start of a session.