Refusals

Part of team usage — the two things that refuse it at exit 2; everything else is a note line at exit 0.

MessageExit
team usage: <the parser's own error>, with the usage2
team usage: the store folder cannot be read: the owner reads the reason2

Everything else — no file here, a file that does not load, a state that cannot be read, another team's store unreadable — is a note line and exit 0. The command runs no check, opens no pane and calls no CLI, so nothing else can refuse it. The second line is the stores folder itself unreadable; it is the command's one refusal beside the invocation, and the owner reads the folder and the read's own reason in its place (team usage: the store folder <folder> could not be read: <why>) — that message carries a path this machine derived, so it is the owner's.

The exit codes these carry are on the team usage page.