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The 9th Protocol extension gives you two ways to work in VS Code.

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Commands

Both run against the same engine and the same ~/.9p configuration as the CLI — memory, skills, and MCP servers all apply.

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Panel

A side panel with the conversation, tool activity, inline permission prompts, and the session meter. Good for staying in one window.

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Browser session

Opens the local session server (see 9p serve) in a browser tab. More screen space than a panel, and useful when you want the agent working while the editor is doing something else.

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Setup

The extension uses whatever credentials the CLI has, so:
is all the auth you need. See Authentication for BYOK and environment variables.
During private beta the extension is installed from a .vsix rather than the marketplace. Marketplace publishing lands with general availability.

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Working directory

The extension uses the first workspace folder as the agent’s working directory. In a multi-root workspace, open the folder you want the agent to work in as the primary root.