practice-walking-skeleton

A walking skeleton workflow validates end-to-end integration early by using thin stubs that traverse the full pipeline, surfacing integration risks before you commit real logic. You progressively replace these stubs with actual implementations.

A walking skeleton in phased software development is a minimal implementation that traverses the entire system flow using stubs. It enforces skeleton-phase discipline so no business logic is committed during early stages of feature pipelines or multi-module systems.

You can keep end-to-end tests green during transitions by using changelog-driven phase markers and phase-locking via a lock file. These guardrails ensure safe rollbacks and traceability when you gradually replace stubs with fleshed-out implementations.

Yes, the walking skeleton approach is specifically applicable to feature pipelines and multi-module systems where early integration visibility is critical. It uses Flesh phases to gradually replace stubs with real implementations while preserving test coverage.

You should avoid a skeleton-first workflow if your project does not require early integration visibility or lacks end-to-end test infrastructure. The workflow strictly enforces skeleton-phase discipline, preventing any business logic from being committed during early stages.

The best way to enforce phase gates in phased development is by using a lock file for phase-locking combined with changelog markers. This guards transitions between Flesh phases, ensuring safe rollbacks and traceability while keeping end-to-end tests green.