Review of Kiro
Kiro is an agentic IDE built by Amazon Web Services that guides developers from prototype to production using spec-driven development. Unlike conventional AI code assistants, Kiro structures each project around three markdown files (requirements.md, design.md, tasks.md). It features agent hooks triggered by file events, MCP support for connecting specialized tools, and an agentic chat interface. Compatible with Python, TypeScript, Go, Rust, Java and more, Kiro targets developers who want a disciplined, structured approach to AI-assisted coding beyond simple vibe coding.
Kiro: L'IDE IA d'AWS pour passer du prototype à la production grâce au développement piloté par spécifications.
Best for
- Developers wanting to go beyond vibe coding
- Teams needing structure and traceability in AI projects
- AWS users wanting a cloud-native IDE experience
- Freelancers and SaaS builders on complex projects
Not ideal for
- Beginners without software development foundations
- Non-developers looking for no-code solutions
- Users who need a non-English interface
- Simple projects that don't require formal specs
Pros & cons
- ✅ Spec-driven development keeps AI actions aligned with project goals
- ✅ Agent hooks auto-trigger on file events for tests, security, docs
- ✅ Support for 20+ languages: Python, TypeScript, Go, Rust, Java…
- ✅ MCP protocol support for connecting external specialized tools
- ✅ Free tier available with no AWS account required
- ✅ Built on Code OSS for a familiar VS Code-like interface
- ⚠️ Revised pricing less generous than at initial launch
- ⚠️ $200/month Power plan expensive for individual developers
- ⚠️ Spec requests consume significantly more credits than simple prompts
- ⚠️ Interface available in English only, no localization
Our verdict
Kiro takes a fundamentally different approach to AI coding assistance. While most AI IDEs focus on autocomplete and snippet generation, Kiro enforces a structured methodology built around formal specifications: requirements, design, and tasks. This spec-driven approach is particularly valuable for ambitious projects where consistency and traceability matter. Kiro's standout feature is its agent hooks system: automated actions triggered by file events (save, create, delete) that handle recurring tasks like test generation, security analysis, or documentation. Combined with MCP support, they make Kiro a genuinely augmented development environment. However, the controversial pricing revision — moving from a model with 1,000 interactions to a more restrictive credit system — has frustrated part of the developer community. The $200/month Power plan may deter independent developers, though the free tier with 50 requests/month allows meaningful evaluation without commitment. Overall, Kiro stands as one of the most serious and structured AI tools available for software development. It targets developers who want to harness AI's full potential while maintaining rigorous design discipline.
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FAQ
Is Kiro free?
Yes, Kiro offers a free tier with 50 agentic interactions per month. No AWS account is required to get started.
What programming languages does Kiro support?
Kiro supports Python, TypeScript, JavaScript, Java, Go, Rust, PHP, Ruby, C#, Kotlin, C/C++, SQL, YAML, and more.
How is Kiro different from GitHub Copilot?
Kiro uses spec-driven development with requirements/design/task markdown files, whereas Copilot focuses on inline autocomplete and on-demand code generation.
What is an agent hook in Kiro?
An agent hook is an automated action triggered by a file event (save, create), such as automatically generating unit tests or running a security review.
Do I need an Amazon account to use Kiro?
No. Kiro supports sign-in via GitHub, Google, or AWS Builder ID. An AWS account is not required.