Parallel delegation runs independent work simultaneously, such as security review, test-gap analysis and maintainability review. It improves elapsed time when dependencies are low.
Specialised roles help when responsibilities and outputs are clear. An orchestrator decomposes work, assigns tasks, manages dependencies, resolves results and owns the final synthesis.
A handoff transfers task, context, decisions, artifacts and remaining uncertainty. Loose handoffs lose essential information. Shared artifacts are where agents coordinate, but concurrent writes to the same artifact create conflict risk.
