Fineuralab
Third-Party AI Skill Safety Checklist
A safety checklist for using third-party AI Skills with files, scripts, credentials, and private data.
AI Skills guide
Third-Party AI Skill Safety Checklist
Third-party skills are useful precisely because they can change how an agent behaves. Treat them like lightweight software dependencies: inspect, test, and keep the blast radius small.
Before installing
Start with a harmless test project, not your most sensitive workspace.
- Read SKILL.md and referenced files.
- Search for shell commands, deletion, network calls, and token handling.
- Check the license and maintenance activity.
- Look for examples or tests that prove the skill's intended behavior.
During testing
Use fake inputs and sample files first. A good test should reveal what the skill reads, writes, and asks the agent to do.
- Use a disposable folder.
- Avoid real credentials.
- Watch for unexpected file changes.
- Record whether the skill improves output quality enough to justify keeping it.
After adoption
A skill is not finished after installation. Keep source links and periodically re-check behavior.
- Pin the source repository.
- Review updates before replacing a local copy.
- Remove skills that trigger too often.
- Keep sensitive work in controlled workflows.