Spec Kit vs Kiro vs Claude Code: Picking an SDD Setup by Tradeoff, Not Hype
Developers comparing spec-driven setups in 2026 usually aren’t asking which model is smartest. They’re asking which workflow keeps an AI agent aligned without burying them in ceremony. Spec Kit, Kiro, and Claude Code custom workflows all implement specify-plan-tasks-implement-validate — but they bet differently on portability versus integration depth.