| Hi HN, I've been using Claude Code (CLI) heavily, but I hit a major friction point: When Claude generates artifacts locally (like a specific SQLite dump, build logs, or a patch), it has no easy way to "hand" them to a coworker. I didn't want to upload sensitive local files to a third-party cloud (S3/Drive) just to send a temporary file to a teammate sitting virtually next to me. So, I built an MCP server (ffl-mcp) that gives Claude the capability to share files directly via P2P. The Workflow: 1. I ask Claude: "Zip the logs and send them to Bob." 2. Claude uses the tool to generate a one-time P2P link. 3. My coworker clicks the link to download immediately (streaming transfer, E2EE). Under the hood: It wraps ffl [0], a CLI tool I built for NAT traversal (WebRTC, relay if failed). (I packaged the core tool as an "Actually Portable Executable" so it runs as a single binary across platforms without Python environment headaches). It's open source and you can try it with uvx:
https://github.com/nuwainfo/ffl-mcp [0] The core ffl tool: https://github.com/nuwainfo/ffl |