pcb-mcp

The server demonstrates strong security practices for its operations. It explicitly implements path validation (`is_safe_path`, `validate_file_path`) to prevent directory traversal attacks and restricts file reading to designated project and task directories. Shell injection is prevented by using `shlex.quote()` when constructing commands for background tasks (e.g., auto-routing). The server does not use `shell=True` for `subprocess.run` by default and does not contain obvious hardcoded secrets. It relies on SSH for secure communication, as it interacts via stdin/stdout rather than directly opening network ports. The main residual risk would stem from vulnerabilities in the underlying KiCad CLI, pcbnew API, or FreeRouting, but the server itself aims to interface with these tools securely.