Show HN: Real-time messaging between Claude instances

1 comments

• 108yak 2 hours ago ago

  Hey HN! I built a message bus that lets Claude instances talk to each other.

    Problem: Running multiple Claude instances (Code, Browser, Desktop), copy-pasting between them killed productivity.
  
    Solution: Real-time agent-to-agent messaging. Send commands from CLI → Browser Claude executes → Response returns
    automatically.
  
    Tech: Flask server, Python client, Chrome extension (Manifest V3), SQLite persistence.
  
    Validated: 235 messages, 0 errors, 50 msg/sec throughput.
  
    Hardest part: Chrome CSP restrictions. Had to use blob URLs and inline workers instead of eval().
  
    What's next: Firefox extension, WebSocket clients, multi-user support.
  
    Open source (MIT). Happy to answer questions about architecture or use cases!