AI SDK Harness adds Deep Agents, OpenCode

// 2h agoPRODUCT UPDATE

AI SDK Harness adds Deep Agents, OpenCode

Vercel has added adapters for Deep Agents and OpenCode to the AI SDK Harness API, enabling developers to run both agent runtimes through a single unified interface. The update allows these tools to run inside a secure Vercel Sandbox with automated tool approval support.

// ANALYSIS

Unifying agent runtimes under a single API makes swapping agent frameworks as easy as swapping LLMs. This shifts the competition from proprietary orchestration layers to runtime execution quality inside secure sandboxes.

–The @ai-sdk/harness-deepagents adapter boots a LangGraph-based Deep Agents runtime, streaming filesystem and shell events directly through the harness.
–The @ai-sdk/harness-opencode adapter integrates the terminal-based OpenCode agent, enabling model-agnostic execution and host tool approvals.
–Running both frameworks inside the secure Vercel Sandbox ensures safe execution of LLM-generated code without exposing the host environment.
–Multi-turn orchestration is simplified as developers no longer need to write custom event-streaming code for each distinct agent runtime.

// TAGS

vercel-ai-sdkharnessagentai-codingsdkopencodedeep-agents

DISCOVERED

2h ago

2026-06-26

PUBLISHED

3h ago

2026-06-26

RELEVANCE

9/ 10

AUTHOR

vercel_dev

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