GitHub Copilot is now available in the AI SDK harness layer
By Steven Van ·
GitHub Copilot joins Claude Code, Codex, Cursor and other harnesses the AI SDK can run through one interface.
GitHub Copilot has joined the roster of agent harnesses that Vercel's AI SDK can run through its harness layer, via the official @ai-sdk/harness-github-copilot adapter. Developers pass githubCopilot to HarnessAgent to get the same session, streaming and tool interface used for other harnesses, without changing application code.
Under the hood, the adapter connects to Copilot through @ai-sdk/harness-acp, using the Agent Client Protocol. The harness layer now supports GitHub Copilot alongside Claude Code, Cline, Codex, Cursor, Deep Agents, fx, Grok Build, OpenCode and Pi, with more harnesses planned.
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