OptionalbranchOptionalrunName of the session taking the claim, e.g. air/20261102T120733-3f9a.
OptionaltakeoverReplace a live claim another session holds on the item. Without it such a claim is refused.
OptionalttlClaim lifetime in hours; defaults per kind (implementation 24, pr 12).
OptionalworktreeCheckout the implementation runs in; required for a local implementation (one implementation per checkout).
Remote worker run id; required for an implementation with no local worktree.