OSS Scanner by Anthropic

What is OSS Scanner by Anthropic?

OSS Scanner is Anthropic’s free, opt-in vulnerability-finding service for open-source projects, built on its strongest models including Claude Mythos. Maintainers enroll with a pull request. Each report comes with a reproducer, an explanation, and a candidate patch when available. In an early validation, 85 of 97 critical and high findings (88%) met the disclosure bar. Reports get no human review, so some may be wrong. Modeled on Google OSS-Fuzz.