When One Prompt Becomes a Process: How I Split Responsibility Inside an AI Skill

I started with a simple AI prompt for developer work. It had the usual parts: role, task, output format, a few constraints. That was enough for small jobs: review this function; explain this error; suggest a plan; clean up this note. Then the tasks got closer to real engineering work. One short request changed the shape of the prompt: Review this pull request before merge. That sounds simple. It is not. A useful PR review has to read the change, understand the intent, notice miss...