spec-driven-implementation

Feature implementation using product and technical specifications involves creating a PRODUCT.md file for user-facing behavior and a TECH.md for technical details to guide development. This structured approach ensures precise execution of substantial features.

A spec-first software development workflow prioritizes generating detailed product and technical specifications before coding. It maintains these software documentation files throughout the development cycle to provide structured guidelines and requirements.

To create tech spec documentation, you outline a TECH.md file detailing implementation architecture, specific technical details, and potential risks. This documentation serves as a foundational guide before and during the feature implementation phase.

You need detailed product specifications when implementing substantial software features that require clear definitions of user experience and requirements. Creating a PRODUCT.md file ensures the feature development remains aligned with intended user-facing behavior.

You maintain software documentation during feature development by treating specifications as living documents. The spec update process involves keeping your PRODUCT.md and TECH.md files in sync with the evolving technical implementation and requirements.

No prior software documentation is needed to start a spec-first workflow. You begin a significant feature by creating the initial PRODUCT.md and TECH.md files, which then serve as the detailed guidelines driving your implementation.