An agent patch should stay off a shared eval host until three local lanes agree. The property oracle still holds, the fixture digest matches the locked set, and any flaky assertion sits behind an unexpired freeze that does not switch the other lanes off. Reversing that order spends host time on diffs a laptop can already reject. The steps below are a proposal. Commands and snippets are unexecuted examples, meant to be copied into a branch and adapted. Nothing in this note is a measured pass r...