Mitosheet - VS Code Extension

[ngafar]

Description

VS Code extension for Mitosheet. Used to write code gen to cells.

Testing

To build and install the extension:

1. Install the packaging tool:

npm install -g @vscode/vsce

2. Package your extension:

vsce package

3. Using the command pallet, select Install from VSIX, and select the file created in step 2.

You should now see the Mitosheet for VSCode extension installed.

Documentation

Yes, but not for now.

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Note

Medium Risk
Adds new extension-host logic that polls local HTTP and programmatically edits notebooks, so bugs could cause noisy polling or unintended cell edits; scope is isolated to the new mitosheet-vscode package.

Overview
Adds a new mitosheet-vscode VS Code extension package that registers a notebook renderer and messaging bridge to the extension host.

When the renderer sees a Mitosheet output item, it posts the session metadata (port + session id) to the extension host, which then polls a local http://localhost:<port>/code endpoint and inserts/replaces a generated Python code cell immediately below the matching output cell (tracked via mito_session_id metadata).

Introduces an esbuild-based build/watch pipeline, TypeScript config, and commits the bundled out/extension.js and out/renderer.js artifacts plus a new package-lock.json.

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Project	Deployment	Actions	Updated (UTC)
monorepo	Ready	Preview, Comment	Mar 9, 2026 10:51pm

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