How to Check an AI Skill Before You Trust It
A skill runs inside your AI assistant — with your assistant's permissions. That is what makes skills powerful, and it is exactly why a five-minute safety check is worth it before you install one.
The 5-minute check
- Permissions: does it ask for only what it needs? A calendar skill needs your calendar. It does not need your files, your inbox, or your browsing history. Broad or unexplained permissions are the biggest red flag there is.
- Code: can you read it? Open-source skills let you inspect
SKILL.mdand any scripts before installing. You do not need to understand every line — look for network calls to strange domains and anything that reads files unrelated to the task. - Author: who made this? A named author with a public repo, a website, or a track record beats an anonymous upload. Check how long they have been around.
- Reviews: what do users say? Look for specific, detailed feedback — not just star counts. Complaints about unexpected behavior matter more than praise.
- Creator: is the ✓ there? A ✓ next to the creator's name means Skill Harbor confirmed who they are — not what their code does. It is one signal among the four above, never a substitute for checking yourself.
Red flags
- Asks for permissions unrelated to its job.
- No author information at all.
- Obfuscated code or downloads from unlisted URLs.
- Promises that sound too good ("completely free premium API access!").
- Pressure tactics — countdowns, "only 3 left" — on a digital download.
What Skill Harbor's ✓ actually means
On Skill Harbor, the ✓ is about the person, not the code: it means we confirmed the creator's identity. It is not a code review, a security audit, or a guarantee — treat every skill as untrusted until you have checked it yourself.
Frequently asked questions
- Are AI skills safe to install?
- Most are. But a skill runs with your assistant's permissions, so check permissions, code, author, and verification status first.
- What permissions should an AI skill ask for?
- Only what its job requires. Broad or unexplained permissions are a red flag.
- What does the ✓ next to a creator's name mean?
- It means their identity was confirmed. It says nothing about the code itself.
- Can I inspect a skill's code myself?
- For open-source skills, yes. For closed-source ones, rely on reputation, reviews, and the ✓ creator badge.