What is an AI skill checker?

An AI skill checker reviews an agent skill before installation so you can identify security, permission, compatibility, and supply-chain risks in its instructions and supporting files.

Can I check a SKILL.md file?

Yes. You can paste SKILL.md content, upload a skill package, or provide a public GitHub repository URL for review.

Does it inspect GitHub repositories?

Repository scans can assess the skill files alongside install scripts, workflows, registries, submodules, and repository trust evidence.

Pre-install skill security

Free AI Skill Checker and Validator

Check an AI agent skill before you install it. AI Skill Shield scans SKILL.md files, skill packages, and public GitHub repositories for the risks that matter when an agent can run code or access your environment.

Start a free scan

What the checker looks for

Prompt injection and suspicious instructions
Exposed API keys, tokens, and credentials
Dangerous shell commands and dynamic execution
Network, filesystem, and environment access
Install scripts, dependencies, workflows, and repository risks

How to check an agent skill

1. Provide a source. Paste SKILL.md content, upload files, or add a public GitHub URL.
2. Review the evidence. Inspect findings, severity, affected files, and repository signals.
3. Decide before installation. Use the report to understand risk and choose whether to proceed.

Learn about SKILL.md validation →Explore security rules →Read the API docs →

AI skill checker FAQ

What is an AI skill checker?: An AI skill checker reviews an agent skill before installation so you can identify security, permission, compatibility, and supply-chain risks in its instructions and supporting files.
Can I check a SKILL.md file?: Yes. You can paste SKILL.md content, upload a skill package, or provide a public GitHub repository URL for review.
Does it inspect GitHub repositories?: Repository scans can assess the skill files alongside install scripts, workflows, registries, submodules, and repository trust evidence.