AI For Dummies — Skills ← ROUTE MAP 03 / SKILLS review desk ↗ Reusable judgment Teach the decision. A skill changes behavior. Keep the trigger precise, put the workflow in SKILL.md , and move conditional facts, scripts, and examples into focused files. Package anatomy One job. More than one file. Choose a file to see why it belongs in the package. REVIEW-UI / SKILL PACKAGE ├── SKILL.md trigger + workflow ├── references/ conditional facts ├── scripts/ deterministic checks └── assets/ templates + examples Create a skill Observe → trigger → validate 01 Observe friction Find a repeated decision or failure. 02 Define the trigger Say when it should load and when it should stay out. 03 Choose anatomy Use references for facts and scripts for deterministic mechanics. 04 Evaluate behavior Test realistic prompts, edge cases, safety, and evidence. Check yourself Recall it before you ship it. Answer from memory first — the reveal is the feedback. Format specification ↗ Try it on the Tiny Tasks lab → The skill never loads. What is the first suspect? + The trigger. A precise description says when to load the skill — and when to leave it out. A vague one never fires. Where do the workflow, the facts, and the repeated mechanics each go? + The workflow stays in SKILL.md, conditional facts move to references/, and deterministic repeated mechanics become scripts/. What proves a skill works? + Behavior, not headings: realistic prompts, edge cases, and safety checks with observable evidence — the same bar the review desk applies. Agents & trees → Rules case study → Review submitted skills → Full guide: skill forge →