LaunchDevelopersAugust 18, 2026

Vercel adds Cline to AI SDK harness layer

The new @ai-sdk/harness-cline package runs Cline through AI SDK's HarnessAgent interface, built in collaboration with the Cline team. Cline executes in the host process, using the sandbox only for filesystem and shell, joining Claude Code, Codex, Deep Agents, Grok Build, OpenCode, and Pi in the harness list.

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Vercel adds Cline to AI SDK harness layer — AIBriefs