Fix Claude CLI 401 Error by Running auth login, Not auth logout
Users of the Claude CLI may encounter a 401 Unauthorized error with the message that a refresh token was already used, typically triggered when a background process or separate terminal session consumes the single-use credential. Despite the error message instructing users to log out and sign in, running a logout command on an already-expired token is unnecessary and adds no value. The correct fix is to run 'claude auth login' directly, which opens a browser or terminal prompt to complete fresh authentication. Users can confirm the session is restored by running 'claude auth status' afterward. The entire recovery process takes under two minutes once the correct command is identified.
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