The article introduces Behavioral Integrity Verification (BIV) to audit third-party skills for AI agents by comparing declared metadata against actual executable code and natural-language instructions. Analysis of the OpenClaw registry found that while most deviations are benign documentation errors, a critical 5% of skills contain multi-stage attack chains such as silent credential exfiltration and instruction-override hijacking.
YAML
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Trust No Skill: Integrity Verification for AI Agent Supply Chains We hardened zizmor's GitHub Actions static analyzer Trail of Bits collaborated with the maintainers of zizmor, a GitHub Actions static analyzer, to improve its parsing capabilities and robustness. By testing against a massive corpus of real-world workflows, they identified and fixed multiple YAML anchor handling bugs, deserialization edge cases, and expression evaluator flaws, significantly enhancing zizmor's ability to detect CI/CD misconfigurations.
