Cline is now available in the AI SDK harness layer
Vercel's AI SDK now runs Cline through a unified harness layer — switch coding agents without rewriting your app.
Why it matters
Developer tooling consolidation: Vercel is standardizing how coding agents integrate into applications, reducing switching costs and fragmentation. This matters for teams evaluating or deploying multiple agent runtimes in production.
The key facts
13 to knowCline harness adapter released for Vercel's AI SDK
Unified harness interface enables runtime switching without code changes
Cline runs in host process; tools operate in sandbox only (no bridge process)
Supported harnesses now: Claude Code, Cline, Codex, Deep Agents, Grok Build, OpenCode, Pi
Collaboration between Vercel and Cline team
Reduces developer friction for multi-agent deployments
Cline now integrated into Vercel AI SDK harness layer
Unified interface for switching between runtimes without application code changes
Cline runs in host process; tools operate in sandbox only
Seven supported harnesses: Claude Code, Cline, Codex, Deep Agents, Grok Build, OpenCode, Pi
Implemented in collaboration with Cline team
@ai-sdk/harness-cline adapter available
More harnesses coming soon
Go to the source
Vercel Blogvercel.com
Publisher excerpt: 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 Cline, which runs through the same interface as other supported harness.AI SDK harness layerHarnessAgent is the official harness…