# invalid-model-skill > Use when testing invalid model validation - Author: Avi Fenesh - Repository: avifenesh/agnix - Version: 20260201064558 - Stars: 6 - Forks: 0 - Last Updated: 2026-02-06 - Source: https://github.com/avifenesh/agnix - Web: https://mule.run/skillshub/@@avifenesh/agnix~invalid-model-skill:20260201064558 --- --- name: invalid-model-skill description: Use when testing invalid model validation model: gpt-4 --- This skill has an invalid model value. The model field must be one of: sonnet, opus, haiku, inherit.