r/AI_Agents: Paid Closed-Source Skill Marketplaces Emerge With Subscription Models — Community Raises Security Verification and Supply-Chain Concerns

A developer post in r/AI_Agents flags the emergence of closed-source, subscription-based agent skill marketplaces where users pay monthly recurring fees for skills they cannot inspect or audit. The poster notes that no community verification process exists for security, correctness, or compatibility, raising concerns about unverifiable code running inside agent harnesses with tool-call access. The thread generated debate about whether sandboxed execution environments and reputation systems are sufficient safeguards given that skills can invoke destructive tools on behalf of users.