Kiro

Every self-improving agent hits the same trap. If it grades its own fixes, it learns to pass the test instead of getting better. The Kiro science team nearly shipped a fix whose entire gain came from one lucky run. Now in kiro-trace, the model proposes, deterministic code decides, and a human merges. The fixes that survived: → Redundant file re-reads down about 83% → Compaction retention up from 0.82 to 0.92 Full breakdown 👉

Re-explaining the same repo conventions? Again? Memory in Kiro IDE + CLI can carry forward your preferences, repo conventions, corrections, debugging insights, and approaches you've already ruled out, then bring them back when they matter. See and manage what Kiro remembers anytime. 👉

Is computer science still relevant?👀 @SwamiSivasubram tells @mndoci the fundamentals still matter. What students can build with them has changed. Kiro for students gives you a free year of kiro to build with. Get started → 📚Want Kiro at your university? Comment your school below!

Why does your coding agent's context fill up with stale copies of files that keep changing? Researchers on the kiro team built CORVUS to fix that: one live copy of each file, 9–50% fewer input tokens, same pass rates. Read the paper accepted to NeurIPS '26 👉

With local sandboxing on, agent-run commands run with scoped access to files and the network. See how it works 👉

Kimi K3 model from Moonshot AI is available in Kiro. It's the first open-weight model with 2.8T parameters, and room to hold your entire repo and spec in a single pass. Get started here:

kiroween is back, and registration is now open. 🎃 Don't build yet: only new projects count. hacking starts 10/30 with full rules and more tracks. $100,000 in cash prizes. Same categories as last year, so start dreaming up your worst nightmares. Register →

Local sandboxing is now generally available in Kiro IDE and CLI. Agent-run commands can now get scoped file and network access when they run locally. macOS, Linux, and Windows. See how it works ↓

Kiro 💜 Manufacturing A 113-year-old, third-generation family-owned manufacturer with 35 developers compressed years of planned software development into weeks, rewriting what a small engineering team can build. 8 production-ready outcomes were delivered in 2 days. Read the full story:

Claude Sonnet 5.5 is now available It is Anthropic's fastest Sonnet model to date and a clear upgrade over Claude Sonnet 5. Built for well-scoped coding and everyday work of building features, fixing bugs, and reviewing code. Available for Kiro Pro, Pro+, Pro Max, and Power tiers. Full breakdown here:

A closer look at Kiro workflows: • specialized agents • parallel branches • test/review gates • conditional loops • model + effort by step The runtime carries the control flow. Each agent handles its part.

Introducing Kiro workflows, now generally available. 👻 Take complex agent orchestration beyond prompts and sessions. Sequence work. Fan it out in parallel. Loop on results. Vary agents, models, and effort by step. All in the workflow itself. Refine it. Save it as a recipe. Run it again. Full breakdown:

Claude Opus 5.5 is now available today Anthropic's most capable Opus model yet, delivering Fable 5.1-level performance on most work at 40% lower cost than Opus 5. Download Kiro or restart the Kiro IDE, CLI, or Crew to check for the latest available models. Learn more here:

Class is dismissed. 📖 This week, we opened the doors to the Kiro University Challenge: a crash course built for builders. What are you building?

Kiro University Challenge, Day 4. Lesson 7: Powers Install and use a Power so Kiro loads its tools and skills on demand. Share what you're building with #KiroUniversity.

Kiro University Challenge, Day 3. 📚 Lesson 5 & 6: MCP + Custom agents Share what you're building with Kiro University. Syllabus 📖 #KiroUniversity

📚Halfway through the Kiro University Challenge, our one week Kiro crash course. Time for a check in on your build. How's your project coming along? Tell us in the comments 👇 Syllabus: #KiroUniversity

"It's never been easier to build something than it is today." A UT Austin sophomore built a 3D explorer of Austin. Runs right in your browser. Started as an idea in his notes app. He typed it into Kiro, reviewed each step as it built, and kept going. Apply today:

Class is back in session 🎓 The Kiro University Challenge starts today. A one week crash course for Kiro. 📚 7 lessons: steering, hooks, MCP, Powers + more 🛠️ Build a project as you go 🏆 Up to 5,250 credits Syllabus here: #KiroUniversity

Claude Fable 5.1 is now available to Kiro enterprise customers. It holds context across long-running, context-heavy agentic sessions, and traces problems to the root causes in the code. Learn more: Stay up to date with the latest models: