Mythos Agent is a cutting-edge, open-source cybersecurity tool designed to aid in the detection of software vulnerabilities. It leverages AI capabilities to scan through 43 distinct categories equipped with more than 329 rules. The tool not only identifies potential security weaknesses but also hypothesizes various CVE (Common Vulnerabilities and Exposures) variants and can generate proof-of-concept exploits for further analysis. Mythos Agent is compatible with popular AI models such as Claude, GPT, and Ollama, ensuring flexibility in its application. It adheres to the MIT license and employs Sigstore signing for added trustworthiness.