Sublime-MCP: Universal AI Agent Connector for Sublime Text

Gives any MCP-speaking AI agent real control over a running Sublime Text 4 instance: run registered ST commands, read/write views and selections, inspect tabs and project state, and eval_python in Sublime's plugin host for anything the typed tools don't cover.

Two optional companion plugins extend this:

• debugger-mcp — Debugger package DAP tools (breakpoints, stepping, variables, call stacks) over MCP

• lsp-mcp — LSP tools (definition, references, diagnostics, rename, hover) over MCP

Toolset

220 typed sublime-mcp tools cover ST's built-in text/window/application commands plus read-only state getters, a batch tool (max 50 calls per request), and eval_python. debugger-mcp adds 102 debugger_* tools; lsp-mcp adds 123 lsp_* tools.

Agent how-to: docs/AGENT_GUIDE.md (also served live by get_help). Workflow across all three MCPs: docs/agents.md.

Related MCP server: OpenSpec MCP Server

Ports

Each plugin serves MCP SSE (direct clients) and a plain HTTP bridge. The bundled Node/Python proxies use sublime-mcp's HTTP bridge only. Defaults:

SSE URL form: http://127.0.0.1:<sse-port>/sse. The bundled Node/Python proxies talk to sublime-mcp's HTTP bridge, not SSE; override with SUBLIME_MCP_BASE (e.g. http://127.0.0.1:9500).

Installation

1. Clone

git clone https://github.com/dpc00/sublime-mcp.git
cd sublime-mcp

2. Install the Sublime Text plugin

Symlink packages/st-plugin into ST's Packages/ directory as sublime-mcp.

Windows (Command Prompt):

mklink /J "%APPDATA%\Sublime Text\Packages\sublime-mcp" "C:\path\to\sublime-mcp\packages\st-plugin"

macOS:

ln -s "$(pwd)/packages/st-plugin" "$HOME/Library/Application Support/Sublime Text/Packages/sublime-mcp"

Linux:

ln -s "$(pwd)/packages/st-plugin" "$HOME/.config/sublime-text/Packages/sublime-mcp"

3. Optional companion plugins

Same pattern: symlink packages/debugger-mcp and/or packages/lsp-mcp into Packages/ under those names.

Windows:

mklink /J "%APPDATA%\Sublime Text\Packages\debugger-mcp" "C:\path\to\sublime-mcp\packages\debugger-mcp"
mklink /J "%APPDATA%\Sublime Text\Packages\lsp-mcp" "C:\path\to\sublime-mcp\packages\lsp-mcp"

macOS:

ln -s "$(pwd)/packages/debugger-mcp" "$HOME/Library/Application Support/Sublime Text/Packages/debugger-mcp"
ln -s "$(pwd)/packages/lsp-mcp" "$HOME/Library/Application Support/Sublime Text/Packages/lsp-mcp"

Linux:

ln -s "$(pwd)/packages/debugger-mcp" "$HOME/.config/sublime-text/Packages/debugger-mcp"
ln -s "$(pwd)/packages/lsp-mcp" "$HOME/.config/sublime-text/Packages/lsp-mcp"

Restart Sublime Text after linking so the plugins load.

4. Configure your agent

Node:

cd packages/node-proxy
npm install .
npx sublime-mcp

Python:

cd packages/python-proxy
pip install .
sublime-mcp

Or point an MCP client with SSE transport at the SSE URL (Windows example):

{
  "mcpServers": {
    "sublime-mcp": { "type": "sse", "url": "http://127.0.0.1:9502/sse" }
  }
}