implement-feature

To implement features with stable contracts and runnable states, define interfaces before coding, break work into small testable increments, and verify with tests at each commit. This incremental delivery approach reduces regression risk throughout feature development.

Contract-first design for incremental feature delivery means establishing stable interfaces and specifications before writing implementation code. It ensures each development milestone maintains a runnable repository with passing tests, reducing integration risks.

Break feature development into small testable increments by defining clear milestones, implementing code in small commits, and running spec-driven verification after each change. This cadence ensures the repository remains runnable at every step.

Yes, the spec-kit workflow supports test-driven milestones for RFC implementation by enforcing contract definition before coding, incremental implementation with small commits, and continuous test verification to maintain passing states throughout the process.

Use incremental feature implementation instead of bulk delivery when reducing regression risk is critical or when applying test-driven milestones. It suits new functionality and RFC implementation where stable contracts and runnable repository states must be preserved.

Repositories lose runnable states during feature development when contracts are not defined before coding or when changes are committed without test verification. Enforcing incremental delivery with spec-driven tests at each step prevents this regression risk.