Build programmatic agents with the Cursor SDK

April 29, 2026

vsdk-release includes 2 new features and 0 fixes. Added first-class run streaming with SSE events, reconnect support via `Last-Event-ID`, and clearer terminal states.

Added

Added first-class run streaming with SSE events, reconnect support via `Last-Event-ID`, and clearer terminal states.
Added explicit agent lifecycle controls with archive, unarchive, and permanent delete.

Changed

Reworked the API around durable agents and per-prompt runs, so follow-ups, status, streaming, and cancellation are now run-scoped.
Standardized v1 response and error shapes, including structured error codes, `items` list responses, and separate `agent` / `run` objects.