code-review

Four review:* tokens plus a board validator make agent review debt visible, countable, and batchable, while security surfaces never wait in a queue.

TL;DR: Reviewing every tiny slice cost 50-60k subagent tokens per round regardless of diff size, making review the largest session expense. The fix: every done row must carry a review token, enforced by a board validator, with non-security work batched until the queue hits three or the session closes. Security surfaces skip the queue, and tokens make review debt greppable.