Issue with processing data

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Hi, I was using cursor to process a fairly large data set (3GB) and it report error: An unexpected error occurred. Request ID: 7b869e64-f95d-4357-adff-629c7eb00847

Steps to Reproduce

I asked cursor to do some data cleaning/analysis for a large csv file (~3GB)

Operating System

Windows 10/11

Version Information

Version: 3.8.11 (user setup)
VS Code Extension API: 1.105.1
Commit: e56ad3440df06d22ca7501e65fd518e905486ef0
Date: 2026-06-18T01:40:18.333Z
Layout: glass
Build Type: Stable
Release Track: Default
Electron: 40.10.3
Chromium: 144.0.7559.236
Node.js: 24.15.0
V8: 14.4.258.32-electron.0
xterm.js: 6.1.0-beta.256
OS: Windows_NT x64 10.0.26200

For AI issues: which model did you use?

Auto

Does this stop you from using Cursor

No - Cursor works, but with this issue

7

Hi @Peimin_Suo Thanks for the post!

I checked the request, and this appears to be related to the very large CSV size (It looks like it is several gigabytes). The request failed while Cursor was trying to handle metadata for the file during the agent run, rather than because of your prompt itself.

For now, the best workaround is to avoid having Cursor read the entire multi-GB CSV directly. Instead, ask Cursor to help write a script that processes the file in chunks, for example with pandas chunksize, Polars lazy scanning, or Dask. You can also start with a small sample of the CSV, have Cursor build and validate the cleaning logic there, then run that script against the full dataset locally.