open-harness
A code-first, composable SDK to build powerful AI agents
Build flexible AI agents in code that can perform various tasks and integrate with different tools.
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open-harness has 603 stars on GitHub. It has been forked 101 times. open-harness is written mainly in TypeScript. It has been in active development since 2026. open-harness is available under the MIT license. Its main topics are agents, agentskills, ai, ai-agents.
What is open-harness?
A code-first, composable SDK to build powerful AI agents
Is open-harness open source?
open-harness is an open-source project. It is released under the MIT license.
Is open-harness free?
Yes. open-harness is free and open source — you can use, modify and self-host it.
What license does open-harness use?
open-harness is available under the MIT license.
What language is open-harness written in?
open-harness is written mainly in TypeScript.
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