Kiro

What it does

Kiro is an AI development environment built by AWS. It turns prompts into requirements, architectural designs, and sequenced tasks, then implements them with parallel agents that run locally or in the cloud. It checks requirements for contradictions and gaps before coding, and uses property-based tests to catch edge cases that unit tests miss.

Kiro is aimed at developers and teams who want more structure than a chat-based coding assistant provides. Instead of jumping straight from prompt to code, it produces requirements, designs, and tasks, then runs parallel agents on your local machine or in the cloud. Property-based tests check behavior against rules that must hold across all inputs, which can catch issues that pass unit tests but break in production. The headless CLI can run in CI/CD to review pull requests and fix bugs without opening an editor. Kiro supports AGENTS.md, Skills.md, and MCP, and the IDE supports Open VSX extensions, themes, and VS Code settings. Pricing is credit-based with no daily or weekly rate limits and pre-paid overages. The Free tier includes 50 credits and access to open weight models and Claude Sonnet 4.5, subject to rate limits. Paid plans start at $20 per user per month for 1,000 credits. Premium models cost more credits than Auto, and not all premium models are available in all countries or regions. Enterprise features such as centralized billing, SSO, usage analytics, and security controls require contacting sales.