Implement the work described by the user in the spec or tickets on a separate worktree, based off of the current branch. If the user passes a ticket reference, fetch it from the issue tracker and state its title before starting. If the reference is ambiguous, ask. Claim the issue first Before editing any files, claim the issue you are implementing so a colliding agent skips it (see ). If the work maps to an issue number : First, check for an existing claim with . If is already set, another agent may be on it: read the latest comment, inspect that branch's real state (open PR? commits? or an e…