Formally adopted since 2025 H2 as the primary way to guide AI agent implementation. Paired with a custom Spec Agent Skill that maintains a living SPEC.md alongside the code, keeping the specification executable and the agent grounded in the intended design throughout the build.
Assess
A methodology pioneered by AWS Kiro that treats specifications as executable first-class artifacts driving the entire development lifecycle, gaining momentum as a structured approach to leverage AI coding agents effectively.