Cursor releases Agent SDK for building and deploying coding agents

Cursor says its Agent SDK is now available.

Developers define agents as code, writing prompts in Markdown and tools in TypeScript, and can run them on Cursor's hosted infrastructure or on their own systems. Cursor says built-in evals let developers measure each change to an agent over time.

Cursor's Eric Zakariasson later published a setup prompt for a first Agent SDK project. The prompt tells a developer's agent to read the SDK documentation at cursor.com/docs/agent-sdk.md and walk the user through setup. Each Agent SDK docs page is also available as Markdown by adding .md to its URL.