A program can only read the clipboard of the machine it runs on. So when your coding agent is running in a tmux session on a remote box, pasting a screenshot into it simply doesn’t work — the one thing you want to do when something looks wrong.
clipwire closes that gap. It takes the image on your local clipboard, hands the remote side a PNG file, and prints its path, which is all the remote program needed.
Built for pasting screenshots into agents over SSH, but there’s nothing agent-specific about it — anything on the far end that can take a file path works.