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. Agents & trees → Rules case study → Review submitted skills → Full guide: skill forge →