Greybeard is a new CLI tool that wraps Snyk's security scanning capabilities in the personality of a grumpy, seasoned security engineer. It provides no-nonsense feedback, contextual wisdom, and motivational insults to motivate developers to fix vulnerabilities. Greybeard uses AI to enhance the original Snyk output with its greybeard personality, making security feedback more engaging and memorable. The tool is built in Go, is fully open source, and runs on multiple platforms. It aims to bridge the gap between security findings and developer action by adding a touch of humor and personality to security messages, potentially making it more accessible and less intimidating for developers.