The previous guard only caught a new name replacing an entry under roles.
A whole-map save could also repoint an existing entry without roles at
that database, or another workspace could point one there, and every
caller of that entry would connect as admin. The rule is now stated on
the saved entries: one that carries no roles and newly points at an
instance database any entry under roles uses, in this workspace or
another, is refused. A declared rename carries its roles and passes.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BjfMkJyKzodxkobqGZ6Lqb