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dovahkiin-v/letterbox

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.

Open on GitHub skyforge.sh
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letterbox

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dovahkiin-v/letterbox

MCP server Claude CodeCodexCursor +2

File-based comms protocol for AI-to-AI dialogue between terminal agents. Runs locally from the letterbox Python package. Needs 3 environment variables to run.

not rated 0 12d ago A tokens not measured original MIT