Hydrator round-trips both cwds. They are operational state but persist across logins so the avatar's session resumes where it left off.
Workspace-tier settings. workspace.editor and
workspace.pageSize are declared in v1 even though only
pageSize is consumed (by the cat controller's soft cap);
editor ships as a stub so future external-editor handoff
can read the player's preference without a schema migration.
workspace.tree is the default-tree selector — content,
source, or mirror. Per-command -c / -s flags
override the default for that invocation.
Synthetic shell vars. Read-only — var set PWD foo is rejected
by EnvironmentMixin.setVar because the ShellApi resolution
order picks synthetic vars first.
Player-facing commands contributed via the
selfslot.