The best way to get Coding Agents to solve hard problems in complex codebases

CodeLayer is an open source IDE that lets you orchestrate AI coding agents.

It comes with battle-tested workflows that enable AI to solve hard problems in large, complex codebases.

Built on Claude Code. Open source. Scale from your laptop to your entire team.

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"Our entire company is using CodeLayer now. We're shipping one banger PR after the other. It is so f-ing good. Unbelievable dude."

– René Brandel, Founder @ Casco (YC X25)

• Superhuman for Claude Code - Keyboard-first workflows designed for builders who value speed and control.

• Advanced Context Engineering - Scale AI-first dev to your entire team, without devolving into a chaotic slop-fest.

• M U L T I C L A U D E - Run Claude Code sessions in parallel. Worktrees? Done. Remote cloud workers? You got it.

"This has improved my productivity (and token consumption) by at least 50%. Taking a superhuman style approach just makes soo much sense. Also, its so freaking cool to look back at all the work you've done in a day."

– Tyler Brown, Founder @ Revlo.ai

Leading experts on getting the most out of today's models.

This talk, given at YC on August 20th, 2025 lays out the groundwork for using AI to solve hard problems in complex codebases.

• GitHub
• YouTube

A set of principles for building reliable and scalable LLM applications, inspired by the original 12-Factor App methodology.

• GitHub
• YouTube

The original repo that coined the term "context engineering" back in April 2025.

A weekly conversation about how we can all get the most juice out of todays models with @hellovai & @dexhorthy

• GitHub
• Podcast

Invest in outcomes, not tools.

Want to scale AI-first development to your entire org? Get tailored workflows, custom integrations, and cutting-edge advice.

HumanLayer's expert engineers will ship in the trenches with you and your team until everyone is a 100x engineer.

📧 Shoot us an email at contact@humanlayer.dev, mention your team size and current AI development stack.

# Coming soon - join the waitlist for early access
npx humanlayer join-waitlist --email ...

Looking for the HumanLayer SDK documentation? See humanlayer.md

CodeLayer and the HumanLayer SDK are open-source and we welcome contributions in the form of issues, documentation, pull requests, and more. See CONTRIBUTING.md for more details.

The HumanLayer SDK and CodeLayer sources in this repo are licensed under the Apache 2 License.