incremental-implementation

Vertical slicing builds thin, end-to-end observable paths through the software stack one at a time. It ensures that a multi-file change remains compilable and testable after every step, preventing large risky updates.

Use an Implement-Test-Verify-Commit cycle to guide incremental development. This ensures each small slice passes tests, typecheck, and lint before committing, keeping your codebase stable and rollback-friendly during refactoring.

Use contract-first development to coordinate parallel backend and frontend work. By defining interfaces first, you can build observable vertical slices independently and verify them end-to-end before merging.

Structure git commits as small, rollback-friendly savepoints after each vertical slice is verified. Run tests, build, and lint between increments to maintain a clean, testable history throughout feature development.

Avoid large refactoring changes whenever a task spans multiple files or stack layers. Instead, use incremental slices with scope discipline to keep the application working and testable between every checkpoint.

Yes, incremental implementation requires per-slice verification including tests, build, typecheck, and lint. This ensures each vertical slice maintains correctness and simplicity before moving to the next increment.