Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
Cursor Tab autocomplete (ghost text) works normally in .py files, but does not in (.ipynb) code cells in the same session/project.
In .ipynb:
- Status bar shows “Cursor Tab”
- Tab Stats are visible (e.g. 0/2)
- Cell language is Python
- No Cursor Tab inline ghost-text suggestions appear
Relevant settings already checked:
- cursor.general.disableHttp2 = true (applied to all profiles)
- editor.inlineSuggest.enabled = true
- cursor.cpp.enablePartialAccepts = true
- No cursor.cpp.disabledLanguages / no Tab disabled for notebooks in settings.json
- In cursor settings HTTP compatibility mode is set to HTTP/1.1 (see screenshot)
This does not look like a settings misconfiguration; it appears as a .ipynb-specific bug.
Is this a known bug? What is the potential issue/solution?
Steps to Reproduce
- Open a .py file in the project and type a simple pattern (e.g. a for-loop / print). Confirm Cursor Tab ghost text appears.
- Open an .ipynb in the same project/session.
- In a Python code cell, type the same pattern.
- Observe: status bar shows Cursor Tab / Tab Stats, IntelliSense works, but no Tab ghost text appears.
Expected Behavior
Autocompletion should work in jupyter notebooks
Screenshots / Screen Recordings
Operating System
MacOS
Version Information
Version: 3.29.9
VS Code Extension API: 1.128.0
Commit: 306d153d51d714882ab7b1bc49649cab624e8a30
Date: 2026-11-05T02:42:01.412Z
Layout: IDE
Build Type: Stable
Release Track: Default
Electron: 43.8.4
Chromium: 150.0.7871.250
Node.js: 24.22.1
V8: 15.0.245.31-electron.0
xterm.js: 6.1.0-beta.291
OS: Darwin arm64 24.6.0
For AI issues: which model did you use?
N.A. — autocompletion model is chosen for me.
Does this stop you from using Cursor
Yes - Cursor is unusable