Cursor TypeScript SDK & Composer Updates
Key Questions
What are the key updates to Cursor's Composer?
Composer 2.5 matches top benchmarks at lower cost and now runs on Kimi K2.5.
What does the new Cursor TypeScript SDK include?
The TS SDK beta adds support for sandboxes and MCP integrations.
How do YC Runtime sandboxed agents compare to solo Cursor workflows?
YC Runtime offers new team collaboration options that differ from solo Cursor flows while improving long-context handling through RL training.
Composer 2.5 matches top benchmarks at lower cost; now runs on Kimi K2.5. TS SDK beta with sandboxes/MCP. New YC Runtime sandboxed agents add team collab options vs solo Cursor flows. RL training improves long-context for indie SaaS.
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Updated May 30, 2026