# Deep Agents and OpenCode are now available in the AI SDK Harness

> Source: <https://vercel.com/changelog/deepagents-and-opencode-harness-adapters>
> Published: 2026-06-25 00:00:00+00:00

The [AI SDK Harness](https://vercel.com/changelog/program-agent-harnesses-with-ai-sdk) lets you run established coding-agent runtimes through one unified interface, so you can switch runtimes without changing your application code. Today we're adding two new adapters, Deep Agents and OpenCode, both running inside a Vercel Sandbox.

[ @ai-sdk/harness-deepagents](https://ai-sdk.dev/providers/ai-sdk-harnesses/deepagents) adapts LangChain's

`deepagents`

runtime, with built-in file and shell tools, skills, host tools, multi-turn sessions, attach and resume, and built-in tool approvals.Read the [Deep Agents harness documentation](https://ai-sdk.dev/v7/providers/ai-sdk-harnesses/deepagents) to get started.

[ @ai-sdk/harness-opencode](https://ai-sdk.dev/providers/ai-sdk-harnesses/opencode) boots a real OpenCode server inside the sandbox via

`@opencode-ai/sdk`

and streams its session events through the harness. It exposes OpenCode's built-in tools, supports both built-in and host tool approvals, and lets you pick the model, provider, and reasoning variant.Read the [OpenCode harness documentation](https://ai-sdk.dev/v7/providers/ai-sdk-harnesses/opencode) to get started.

The full supported list of harnesses is now: Claude Code, Codex, Deep Agents, OpenCode, Pi, with more coming soon.
