Use in pipelines where the second agent otherwise re-derives work the first already did.
Agent A just finished this sub-task: [paste output]. Write the handoff brief Agent B needs to continue, including what NOT to redo.
Anything in square brackets is meant to be replaced. The builder turns those into fields you can type into.
Tired of re-pasting the same context into every new chat? That is what the Unimatrix MCP server is for.