--dangerously-skip-permissions
Skips permission prompts, which is the same as starting in bypassPermissions.
FlagsPermissions and securitycurrent
What the documentation does not say
It does not switch off every guard, so "skips permissions" is narrower than it sounds; the permission-modes page lists what still applies. For a session started with --bg, the mode survives a supervisor restart, which is worth knowing before you leave one running.