Delegate simple, fast tasks to GPT-5-mini Quick-Helper agent. Use when (1) Simple file operations needed (finding files, listing directories, basic grep), (2) Quick validations required (file existence, JSON validation, simple tests), (3) Fast transformations (string manipulation, format conversions), (4) Repetitive tasks (batch operations, loops), (5) Speed matters and task is straightforward. DO NOT use for complex code implementation, user perspective reviews, test writing, or deep analysis - Main Claude handles those.