Describe the Bug I used Claude 4 Sonnet this morning to create a Jupyter Notebook and everything was working as expected: the LLM could see my notebook, edit it, etc. when coming back from lunch this afternoon nothing works anymore. The agent just tells me that the reading / editing tools are not wo…

Inconsistent Jupyter notebook handling

edervieux August 6, 2025, 8:01am 2

Some more example of Cursor’s disastrous JPNB handling, eating away tokens like crazy:

Pylance not working

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