Dangerous permission skip tells Claude Code to stop asking before it acts. It skips nearly every permission gate, including the serious ones: reading, editing, running commands, and overwriting work all happen with far less friction. You gain speed and lose the checks that make you stop and think.
Picture an office master key. An employee normally has keys to the lobby and supply closet, and for the records room they have to ask. This flag hands them the master key and says “just keep working.” Fine if the person is trained and you know the job. Not fine if the rooms are full of client files and nobody’s watching.
Why you care
This flag suits someone who understands the room they’re unlocking: repetitive, low-risk work inside a controlled sandbox, with guardrails like a git branch, a backup, or a review step. It’s a bad idea in a live repo or client folder. Don’t turn it on because you’re tired of clicking yes. Turn it on only when the area is scoped, the risk is understood, and you can recover the work.