AI coding assistants like Cursor, Windsurf, and Claude Code write fast code — but not always secure code. They hardcode API keys, use MD5 for passwords, build SQL queries with f-strings, and you won't catch it until something breaks in production. VibeLint is an MCP server that sits between the AI and your files, Every time your AI agent generates code, VibeLint intercepts it first and scans for security risks before it even touches your files.