The AI SDK harness layer now supports fx, Vercel's lightweight, open-source coding agent. The harness layer provides one API for running coding agents in your application, so you can add fx without building a separate integration.
Configure HarnessAgent
with the official @ai-sdk/harness-fx
adapter:
The `@ai-sdk/harness-fx`
adapter connects to fx over the Agent Client Protocol (ACP) using [ @ai-sdk/harness-acp](https://vercel.com/changelog/use-acp-compatible-harnesses-with-the-ai-sdk-harness-layer).
fx joins Claude Code, Cline, Codex, Cursor, Deep Agents, Grok Build, OpenCode, and Pi in the list of supported harnesses.
Read the fx harness documentation to get started.
source & further reading
vercel.com — original article
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