Schema-verified command correctness — every cub command in the dataset validated against the real cobra command tree from github.com/confighub/sdk. A stripped-down stub-cub fork was built to extract the full flag/arg/subcommand schema (266 commands) which was then used to auto-validate every training example.… See the full description on the dataset page: https://huggingface.co/datasets/chanwit/gemma4-cub-agent-v11.