Agent Infrastructure Sandboxing DX Tooling

OpenHarness

Build AI Agents in Code

An open-source TypeScript service for building general-purpose AI agents in code, with stateless agents, composable middleware, subagents, tool permissions, and UI integrations.

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releasePRIMARY2026-05-02

Agent Harness Framework launches with Daytona default sandbox

The Agent Harness Framework started rolling out with Daytona as the default sandbox, and Fred Schott reported 35 pull requests on day one. The launch matters because it gives builders a packaged sandbox baseline instead of wiring execution isolation and agent environment management from scratch.