Make your AI skills more predictable with scripts

This newsletter explains that AI skills are folders containing a SKILL.md file with a name, description and instructions, and can also bundle scripts and other resources that agents run when needed. It walks through a lead-generation skill that starts as a single prompt and is then refactored with three scripts (web_search.js, qualify_lead.js, store_lead.js) plus updated instructions, moving repeatable steps out of the agent's judgement and into code. The author argues this yields more predictable outcomes and is easier to change, since each part of the process lives in one place.