A field guide to the practice that's reshaping how software gets built with AI agents. TL;DR — Spec-Driven Development (SDD) makes a precise, executable specification the source of truth and treats code as a generated, verifiable artifact. The spec declares intent ; the code realizes it.
Source: [Dev.to](https://dev.to/krlz/spec-driven-development-in-2026-what-it-is-the-tooling-and-how-teams-actually-use-it-2fk2)