Show HN: HookGuard – scanner for malicious Claude.md and agent config files (github.com)

A new security tool called HookGuard has been unveiled to scan configurations for AI coding agents, specifically targeting malicious files like CLAUDE.md. This tool identifies threats such as Remote Code Execution (RCE) hooks that could exfiltrate sensitive data, invisible Unicode characters that can lead to bidirectional text manipulation, and patterns indicative of prompt injection attacks. HookGuard allows developers to scan their projects and configurations for these vulnerabilities, which could otherwise compromise their API keys and overall security if malicious code is pulled from untrustworthy repositories. The significance of HookGuard for the AI/ML community lies in its ability to enhance security in a rapidly evolving AI landscape, where coding agents increasingly rely on external inputs and configuration files. By employing tools like HookGuard, developers can proactively address security risks posed by hidden threats in their codebase, ensuring safer deployment of AI systems. The tool can be easily integrated into workflows, providing immediate feedback on findings and potentially blocking builds until vulnerabilities are addressed, thereby fostering a more secure coding environment.