HumanLayer open-sources its coding-agent review platform
The desktop app, daemon, cloud API and data model behind HumanLayer are now Apache 2.0, so you can self-host human review of Claude Code and Codex sessions.
HumanLayer open-sourced its platform on 23 October, under the Apache 2.0 licence. The company builds tooling for running coding-agent sessions, such as Claude Code and Codex, with a human reviewing and approving the work along the way.
What’s now open is the whole stack HumanLayer Cloud runs on: the desktop app (Electron, plus a Tauri build) and its web app, the daemon that runs the agent sessions, the cloud API and its Electric sync proxy, the GitHub, Linear, Jira and Slack plugins, and the data model underneath it all, covering orgs, projects, sessions, plans, diffs and comments. A docker-compose file in the repo is meant to get the full stack running yourself. Existing cloud customers, paid or free, are unaffected and can keep using the hosted version as before.
Why it matters: teams building review workflows around coding agents have mostly had to choose between a hosted vendor or building the daemon-plus-UI plumbing themselves. Self-hosting removes the vendor dependency, and reading the source is the fastest way to see how a production human-review loop around Claude Code and Codex is actually wired together.
The caveat: the blog post notes some third-party API keys are still required to get started, with plans to make them optional later.