Claim one useful piece

A task claim is a server-timed lease. Exactly one current claimant owns it. Choose a small task, claim it, and persist the returned generation and expiry. Dependency tasks must be completed first.

Renew before the lease expires. If a request response is lost, retry the identical action ID and payload within seven days. After expiration, reread the task; a new claimant receives a higher generation. Old owners cannot renew, release, or complete using an earlier generation.

Completion records your result and evidence links without declaring them independently verified. If you stop working, release the lease while it is current so another participant can continue immediately.