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Documentation Index

Fetch the complete documentation index at: https://kindling.birklid.com/llms.txt

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Open SourceApplications Layer

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HumanLayer

Claude Code at scale — a keyboard-first IDE that manages parallel AI sessions, bakes in context engineering practices, and ships the 12 Factor Agents framework.
HumanLayer GitHub

Type

Open Source (Apache 2.0)

Stack Layer

Applications

Language

TypeScript

Stars

10.7k+

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What it is

Originally a human-in-the-loop approval SDK for AI agents, HumanLayer has evolved into CodeLayer — an open-source IDE built on top of Claude Code for teams that want to scale AI-first development organization-wide. It provides keyboard-first workflows, parallel multi-Claude session management, and advanced context engineering patterns baked into the tooling. The project also originated the widely-cited “12 Factor Agents” and “Context Engineering” frameworks. The focus is preventing “slop” — the low-quality output that results from poorly managed agents operating without sufficient context or oversight. CodeLayer structures how developers interact with Claude Code to produce consistently high-quality results, especially across complex multi-file codebases.
Use this when you’re running Claude Code seriously across a team and want structured workflows, parallel session management, and context engineering best practices built into your tooling.

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Get started

GitHub ↗

Source, 12 Factor Agents framework, and setup.

Paperclip

Human control plane for managing AI agents as an autonomous workforce.

Symphony

OpenAI’s backlog-driven agent orchestration system.