Cursor Slashes Code Indexing Time from Hours to Seconds by Sharing Indexes Between Teammates

Jan 28, 2026
Cursor
Article image for Cursor Slashes Code Indexing Time from Hours to Seconds by Sharing Indexes Between Teammates

Summary

Cursor revolutionizes code development by reducing codebase indexing time from over 4 hours to just 21 seconds through a breakthrough system that shares indexes between teammates, leveraging 92% similarity in codebases and cryptographic security to deliver instant search results.

Key Points

  • Cursor speeds up codebase indexing by reusing existing indexes from teammates since clones of the same codebase average 92% similarity across users within an organization
  • The system uses Merkle trees with cryptographic hashes to detect file changes and content proofs to ensure users only see results for code they already have access to
  • Index reusing reduces time-to-first-query from hours to seconds for large repositories, with the 99th percentile dropping from 4.03 hours to 21 seconds

Tags

Read Original Article