What to look for
Read the sections on smaller system prompts, deferred tool loading, cache reuse, file reads, and selective subagents. Together they explain why the way an agent assembles requests matters alongside the model it calls.
Keep in mind
These are Cursor’s own system changes. Some require control of the agent harness. Reported reductions use different measures and should not be added together or treated as a savings promise for your workflow.
Read the original work
Improved token efficiency for longer agent runs ↗By Jediah Katz, Connor O’Keefe & Calvin Yee · Cursor
Published Sep 23, 2026. Source checked Oct 5, 2026.
Reading note by SaveMyToken · Added Oct 5, 2026. This page is a short editorial introduction; the full article belongs to its original publisher.