Vercel14h agoVercel Ships HarnessAgent for Unified Agent Harness Integration
Vercel launched HarnessAgent in AI SDK v7, a unified API for running agent harnesses including Claude Code, Codex, and Pi. It provides sandboxed sessions and AI SDK-compatible streams, allowing developers to write agent logic once and swap the underlying harness by changing a single import. This experimental release normalizes multi-turn agent workflows across different runtimes.