Cursor is now available in the AI SDK harness layer
Source
Felix Arntz
Author
Felix Arntz
Date
Terms in this piece · Glossary
agent harness — The scaffolding around a model that turns it into a working agent — the loop, the tools it can call, and the rules for when to stop.
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
Why it matters
Swapping coding agents behind a single HarnessAgent interface means AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → choice becomes a config line rather than a rewrite — and Cursor is now one of the options over ACP.
