After some digging (and a few dead ends), I traced the process to a new local service — one that wasn’t documented in my README.md or any docker-compose.yml . It turned out to be a sidecar process from a recently installed AI code assistant, quietly running a WebSocket server to analyze my local files in real time.
Running a local dev server at localhost:11501? Here’s a short, shareable post you can use to announce a new local project or dev build. localhost 11501 new
node 11501 0.0 0.1 TCP localhost:11501 (LISTEN) After some digging (and a few dead ends),