Agent Skills: The New Supply Chain Attack Vector
Introduction AI agent skills promised to revolutionize productivity—plug-and-play instructions that let your agents book meetings, query databases, or access 1Password vaults. These modular capabilities, distributed through marketplaces like ClawHub and OpenClaw, offer the same convenience that npm and PyPI brought to software development. Organizations rushed to adopt these skills, integrating them into workflows with minimal vetting, trusting the marketplace ecosystem to ensure quality and security. But research reveals a darker reality: 36% of skills in these marketplaces contain vulnerabilities, and hundreds harbor active malicious payloads. Unlike traditional software supply chain attacks that target static packages, agent skills operate dynamically at runtime, executing natural language instructions that evade conventional security tools. This new attack vector combines the weaponization potential of software supply chain compromises with the unique exploitability of AI systems, creating a threat landscape that defenders are only beginning to understand. ...