This is a live verification. Call the T3 tool delegate_task exactly once with mode="async", provider instance claudeAgent, model claude-sonnet-5-5, options {"effort":"low"}, and this task text verbatim: "Call the T3 tool t3_worktree_status once. Then, as your final action, call t3_worktree_handoff with exactly these arguments: {"branch":"handoff-r2-34936ea6","baseRef":"main","startFromOrigin":false,"runSetupScript":false,"continuationPrompt":"Count from 1 to 400, one number per line. No tools."}. Do not call any other tool, do not run shell commands, do not read or edit files, and do not delegate. After the handoff call returns, end your turn immediately with no further text." After delegate_task returns, end your turn with exactly WAITING. When a completion notification for that task arrives, call task_status once for it and reply with exactly ACK: followed by its status. Do not call any other tool, do not run shell commands, do not read or edit files, and do not delegate.