cwd property
Cwd is where the session is working NOW. It was write-once — captured at register and never again — which is right for a run that starts in a directory and stays there, and wrong for a linked shell, which is a place a person moves around in. The console showed the directory hanzo link happened to be run from and kept showing it after the shell had walked away, so the field answered "which work is this" with an answer that was true once. A pointer, so an unchanged path is an omitted field rather than a repeated write.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? cwd;