Amazon Kiro hits GA with spec-driven agents

Kiro is betting that "vibe coding" fatigue will push serious engineering teams toward structure, and AWS is uniquely positioned to win that enterprise segment.

• –Spec-first generation (EARS notation, architecture diagrams, task sequencing) is a direct answer to the hallucination and scope-creep problems plaguing agents that just dive into code
• –Agent Hooks enable event-driven automation — security scans, test runs, doc updates firing on file save — a feature Cursor and Windsurf lack entirely
• –Native MCP integration and Kiro Powers (on-demand context modules like IAM Policy Autopilot) give it an AWS ecosystem moat competitors can't easily replicate
• –At $20/mo Pro tier it matches Cursor on price, but its GA launch includes team governance, IAM Identity Center integration, and consolidated billing — enterprise features Cursor still doesn't offer
• –The tradeoff is friction: Kiro is measurably slower to first output, making it a poor fit for solo devs who want instant iteration