How does locking work? Coordination of different agents

Hi there, with multiple developer agents, I am getting the impression that multiple agents can start work on the same file. I am then wondering, whether there is any locking taking place, or if they try to edit the same file, resulting in errors (this is my impression).

Thanks, Beet

No file, test, or entry point is named. Start by locating the agent-coordination and file-editing paths, then verify whether concurrent edits are locked or rejected; done means the behavior is confirmed and documented with a reproducible explanation.

Written by the indexing model from the issue text.