spec-driven-development

Software specifications should define an objective, project structure, code style, testing strategy, and boundaries before coding. Creating this structured spec establishes a single source of truth that prevents miscommunication and scope creep when requirements are evolving.

To create a structured specification before coding, apply a four-phase gated workflow: Specify, Plan, Tasks, and Implement. Start by drafting a high-level objective, then iteratively fill in the plan and task breakdown details to reduce rework before any implementation begins.

Yes, a spec-driven workflow is specifically useful for multi-file or multi-team projects where requirements are ambiguous or evolving. It provides a plan and task breakdown that can be reviewed before implementation to reduce misalignment across modules.

Your software project needs a gated workflow to enforce explicit success criteria before moving between phases. By separating specification, planning, task breakdown, and implementation into distinct gates, you prevent architecture decisions from causing uncoordinated rework across multiple modules.

You should not use a spec-driven development approach for simple, single-file changes that have fully clear requirements. The overhead of defining six core specification sections and enforcing a four-phase gated workflow is designed for complex projects where architecture decisions affect multiple modules.