The lets you run established coding-agent runtimes through one unified interface, so you can switch runtimes without changing your application code. Today we are adding Grok Build, which runs through the same interface as every other supported harness.AI SDK harness layerHarnessAgent is the official harness adapter for Grok Build, built on top of ().@ai-sdk/harness-grok-build@ai-sdk/harness-acpthe ACP harness adapter Read the to get started.Grok Build harness documentation The full supported list of harnesses is now: Claude Code, Codex, Deep Agents, Grok Build, OpenCode, Pi, with more coming soon. Read more