{"slug": "fx-is-now-available-in-the-ai-sdk-harness-layer", "title": "fx is now available in the AI SDK harness layer", "summary": "Vercel's AI SDK harness layer now supports fx, its lightweight open-source coding agent, via the official @ai-sdk/harness-fx adapter, which connects over the Agent Client Protocol using @ai-sdk/harness-acp. fx joins Claude Code, Cline, Codex, Cursor, Deep Agents, Grok Build, OpenCode, and Pi as supported harnesses, enabling developers to integrate fx into applications with a single API.", "body_md": "The [AI SDK harness layer](https://vercel.com/changelog/program-agent-harnesses-with-ai-sdk) now supports [fx](https://fx.sh), 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.\n\nConfigure `HarnessAgent`\n\nwith the official `@ai-sdk/harness-fx`\n\nadapter:\n\nThe `@ai-sdk/harness-fx`\n\nadapter 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).\n\nfx joins Claude Code, Cline, Codex, Cursor, Deep Agents, Grok Build, OpenCode, and Pi in the list of supported harnesses.\n\nRead the [fx harness documentation](https://ai-sdk.dev/v7/providers/ai-sdk-harnesses/fx) to get started.", "url": "https://wpnews.pro/news/fx-is-now-available-in-the-ai-sdk-harness-layer", "canonical_source": "https://vercel.com/changelog/fx-ai-sdk-harness-adapter", "published_at": "2026-08-31 06:00:00+00:00", "updated_at": "2026-08-31 22:52:41.304840+00:00", "lang": "en", "topics": ["developer-tools", "ai-agents", "ai-tools"], "entities": ["Vercel", "fx", "AI SDK", "@ai-sdk/harness-fx", "@ai-sdk/harness-acp", "Claude Code", "Cline", "Codex"], "alternates": {"html": "https://wpnews.pro/news/fx-is-now-available-in-the-ai-sdk-harness-layer", "markdown": "https://wpnews.pro/news/fx-is-now-available-in-the-ai-sdk-harness-layer.md", "text": "https://wpnews.pro/news/fx-is-now-available-in-the-ai-sdk-harness-layer.txt", "jsonld": "https://wpnews.pro/news/fx-is-now-available-in-the-ai-sdk-harness-layer.jsonld"}}