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@plutojl/cli

v0.5.5

Published

Standalone MCP server for Pluto.jl notebooks — run with npx @plutojl/cli

Readme

@plutojl/cli

Standalone MCP (Model Context Protocol) server for Pluto.jl notebooks. Enables AI assistants like Claude and GitHub Copilot to interact with Julia Pluto notebooks.

Quick Start

# Start the MCP server (also starts a Pluto server)
npx @plutojl/cli run

# Install MCP config for Claude Code
npx @plutojl/cli install

Prerequisites

  • Node.js >= 18
  • Julia — install from julialang.org or via juliaup
  • Pluto.jl — installed automatically on first run

Commands

run

Start the MCP server (and a Pluto server if needed).

npx @plutojl/cli run [options]

| Option | Default | Description | | ----------------------- | -------- | ---------------------------------------------------- | | --mcp-port <port> | 3100 | MCP server port | | --pluto-port <port> | 1234 | Pluto server port | | --pluto-url <url> | — | Connect to existing Pluto server (skip starting one) | | --julia-version <ver> | 1.11.7 | Julia version via juliaup |

install

Add MCP configuration files for AI assistants.

npx @plutojl/cli install [options]

| Option | Default | Description | | ------------------- | ------------- | ------------------------------------------------- | | --target <target> | claude-code | Config target: claude-code, copilot, or all | | --mcp-port <port> | 3100 | MCP server port to configure | | --global | — | Write to ~/.claude/ instead of ./.claude/ | | --dry-run | — | Print config without writing | | --force | — | Overwrite existing config |

Configuration

Configuration is resolved in priority order:

  1. CLI arguments
  2. Environment variables (PLUTO_MCP_PORT, PLUTO_PORT, PLUTO_SERVER_URL, JULIA_VERSION)
  3. .plutomcp.json in current directory
  4. Defaults

Example .plutomcp.json:

{
  "mcpPort": 3100,
  "plutoPort": 1234,
  "juliaVersion": "1.11.7"
}

MCP Tools

The server exposes these tools to AI assistants:

| Tool | Description | | ------------------------- | ---------------------------------- | | learn_pluto_basics | Get a comprehensive Pluto.jl guide | | start_pluto_server | Start the Pluto server | | stop_pluto_server | Stop the Pluto server | | connect_to_pluto_server | Connect to an existing server | | get_notebook_status | Check server status | | open_notebook | Open a notebook file | | list_notebooks | List all open notebooks | | create_cell | Create and execute a new cell | | read_cell | Read cell code and output | | edit_cell | Update cell code | | execute_cell | Run an existing cell | | execute_code | Execute code ephemerally | | get_docs | Get Julia symbol documentation | | introspect_notebook | List all symbols in a notebook |

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