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Vercel AI SDK 7 adds HarnessAgent for coding-agent harnesses

Vercel released AI SDK 7 with HarnessAgent, an experimental API that provides a unified programming model for running coding agent harnesses like Claude Code, Codex, and Pi harness, supporting sandboxed sessions and SDK-compatible streams.

read1 min publishedJun 12, 2026

Vercel Developers (@vercel dev) said Friday that Vercel's AI SDK now supports agent harnesses for Claude Code, Codex and the Pi harness, with sandboxed sessions and SDK compatible streams, in a post on X. Vercel detailed the release in a changelog post, saying AI SDK 7 introduces HarnessAgent , an experimental canary API meant to give developers one programming model for running established coding agent harnesses. https://x.com/vercel dev/status/2065509970775519569 The move pushes the AI SDK ...

source & further reading
runtimewire.com — original article Zyphra Releases ZONOS2, an Open-Weight Real-Time Voice-Cloning Model RuntimeWire — Weekly Report Week 2 · June 5 – June 11, 2026 General-purpose LLMs beat specialized AI tools in Nature Medicine study
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