env -i starts with an empty environment, so nothing leaks from my shell. The home directory is empty: no config, skills, memory, or history. The token is the same as for my current session; /ccu retrieves it from macOS Keychain. The subscription is the same, but there is no email: the Claude Code account profile is stored in .claude.json, which is written upon login, while home is clean here.Permissions must be granted in advanceclaude -p rejects any tool