Function stand_in_name 

pub fn stand_in_name(context: &str, worker: &str) -> String

The Worker name context‘s stand-in for worker runs under. Not the foreign Worker’s own: a -c config’s Worker also registers in wrangler’s dev registry, which every local wrangler dev shares (verified on 4.149.0), so under the real name it would answer other sessions’ bindings to that Worker and, once stopped, could leave a stale entry for --local-worker to connect to. The context’s binding is pointed at this name instead (point_at_stand_ins).

Kept within Cloudflare’s 63-character Worker name limit: a longer name is cut and given a hash of the whole, so two stand-ins never share one.