Cline is now available in the AI SDK harness layer
Cline coding-agent runtime is now supported through the unified AI SDK harness layer interface, allowing developers to run Cline alongside other agents like Claude Code, Pi, and Grok Build without changing application code. Cline runs in the host process with sandbox integration for filesystem and shell operations.
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 adapter for Cline, implemented in collaboration with the Cline team.@ai-sdk/harness-cline
Cline runs fully in the host process and uses the sandbox as a remote filesystem and shell, so only its tools operate in the sandbox. No bridge process is installed inside the sandbox, similar to the existing Pi harness.
Read the to get started.Cline harness documentation
The full supported list of harnesses is now: Claude Code, Cline, Codex, Deep Agents, Grok Build, OpenCode, and Pi, with more coming soon.
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