A Practical Intro to Spec-Driven Development (SDD)

Spec-Driven Development (SDD) is an approach that focuses on creating a clear, structured description of what software should do before writing code. This helps prevent rework, confusion, and systems that don't match original goals. By starting with a Specification, developers can use AI coding agents to turn it into working code. This approach allows for easier changes to features, eliminates 'spaghetti code', and acts as a permanent memory of why a feature exists. To adopt SDD, create a clear Specification that defines what the system should do, how it should behave, and which constraints it must follow.