The point of failure
Breakdowns happen in the transition between roles, not inside tasks. A handoff is only successful when the receiver gets the right output, in the right place, with enough context to act.
Explicit transitions
Define the sender, the receiver, the output, and the trigger for the next step. If the receiver is unclear, the handoff is incomplete.
Capture the failure mode
Document the common errors (like missing files or wrong status tags) to capture local knowledge before it causes a delay.