Fineuralab
How to Read SKILL.md
A practical guide to reading SKILL.md files before installing or adapting an AI Skill.
AI Skills guide
How to Read SKILL.md
SKILL.md is the control surface of a skill. It should explain when the skill applies, what the agent should read next, what scripts or references matter, and where the safety boundary sits.
What to look for first
A useful SKILL.md should be specific enough that you can predict when the agent will use it.
- A clear trigger condition.
- A narrow task or domain.
- References loaded only when needed.
- Any scripts, network use, or file writes explained plainly.
Healthy structure
The best files use progressive disclosure: short main instructions, optional references, and scripts for repeatable mechanical work.
- Main file stays readable.
- References contain deeper policy or workflow details.
- Scripts are small enough to inspect.
- Examples show the expected artifact.
Red flags
A skill can be popular and still be risky. Slow down when the file asks for broad permissions or hides important work in scripts.
- The trigger is so broad that it can hijack unrelated tasks.
- The skill asks for secrets or account access without limits.
- Install commands fetch and execute remote code.
- No examples or validation path are provided.