dispatch-brief

Write the brief that hands a bounded piece of implementation or verification work to a lane or subagent — name the failure with evidence, require a two-directional mutation test, state which failure direction is worse, forbid weakening a guard to reach green, allow "could not measure" as a real verdict, and make posting the result part of the deliverable. Use when composing a brief for a worker that will fix a bug, add a guard, or verify a claim, especially one dispatched to run unattended. Not for reviewing reasoning that has already been produced (sanity-check), a durable architecture document (spec), deciding whether a repeated step should become a tool (mechanize), or judging whether a check already in place can be trusted (verify-the-instrument).