Specialized agents are built from harnesses.
A harness is a small directory that teaches an AI agent how to do one job well. It can include instructions, scripts, local databases, service integrations, browser actions, and setup notes.
The Opensteer CLI is open source. It lets Claude Code, Codex, Cursor, or another local agent control your browser and call Python code inside the current directory as tools. That is how a generic coding agent becomes specialized for the folder it is in.
$ curl -fsSL https://opensteer.com/install.sh | sh
Installs the CLI and agent skills, then prints the browser setup command for your machine.
› agent harness templates are open source
› each harness is just a directory with skills/, scripts/, home.html, and state
› skills/ tells the agent how to think and operate for that job
› scripts/ is deterministic code the agent can run as tools
› opensteer cli gives the agent browser control when an app has no API
› run the same harness locally, or run it in Opensteer Cloud so it can keep working 24/7