Agree on interfaces before fan-out
Use contracts to make task boundaries legible before multiple implementations proceed.
Trade-off: Contracts add coordination before implementation.
Tool / Integration flow
Ordewell
Run tasks separately, then bring successful results into an integration branch.
The summary describes what the project says it does; inclusion is not an endorsement.
Getting close operationally: tasks run separately, and successful ones land in an integration branch, including all-or-nothing behavior across several repositories.