Prerequisites Assume the Dune CLI is already installed and authenticated. Do not run upfront install or auth checks. Just execute the requested command directly. If a command fails, inspect the error to determine the cause and follow the recovery steps in install-and-recovery.md: - "command not found" → CLI not installed. See CLI Not Found Recovery. - "missing Sim API key" → No key in flag, env, or config. See Sim Authentication Failure Recovery. - "authentication failed" → Key is invalid, expired, or revoked. See Sim Authentication Failure Recovery. - Unknown subcommand or flag / unexpected…