Connect to a Jupyter kernel. Starts one if not already running.

Open or create a notebook file and attach it to the session.

List all cells in the open notebook with optional detailed content.

Read a single cell by index with its outputs.

Insert a new code or markdown cell at the given index.

Find and replace text in a cell's source code.

Delete a cell by index.

Execute a code cell in the open notebook and save results.

Execute arbitrary Python code directly (outside the notebook context).