SkillTester: Benchmarking Utility and Security of Agent Skills
This technical report presents SkillTester, a tool for evaluating the utility and security of agent skills. Its evaluation framework combines paired baseline and with-skill execution conditions with a separate security probe suite. Grounded in a comparative utility principle and a user-facing simplicity principle, the framework normalizes raw execution artifacts into a utility score, a security score, and a three-level security status label. More broadly, it can be understood as a comparative quality-assurance harness for agent skills in an agent-first world. The public service is deployed at https://skilltester.ai, and the broader project is maintained at https://github.com/skilltester-a...
| Authors | Leye Wang, Zixing Wang, Anjie Xu |
|---|---|
| Primary category | cs.CR |
| Published | 28 March 2026 |
| Last updated at source | 28 March 2026 |
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