letterbox

dovahkiin-v/letterbox

★ 0 stars Python AI/LLM Updated 12d ago

MCP server for file-based real-time messaging between terminal AI agents (Claude Code, Gemini CLI, Antigravity). No server, no network — just JSON + atomic rename.

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Quick Install

Copy the config for your editor. Some servers may need additional setup — check the README.

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "letterbox": {
      "command": "uvx",
      "args": [
        "letterbox"
      ]
    }
  }
}

Or install with pip: pip install letterbox

README Excerpt

> 📌 **Built for internal production use.** Architecture proven across 6 months of daily AI development. Open-sourced as a reference implementation. **In plain terms:** If you use AI coding assistants in the terminal, you normally work with one at a time — and getting two of them to collaborate means copy-pasting messages between windows yourself. Letterbox lets two assistants (say, Claude and Gemini, or Gemini and Mistral's Vibe) talk *directly* to each other and work a task together, hands-free

Tools (1)

letterbox

Topics

ai-agentsalphaantigravity-cliclaude-codeclideveloper-toolsfilesystemgemini-cliinter-process-communicationmcpptypython

letterbox

Quick Install

README Excerpt

Tools (1)

Topics

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