fs-mcp

The `validate_path` function is robust, ensuring all file operations are strictly confined to explicitly allowed directories and the system's temporary directory. Access to the temporary directory is further restricted to specific patterns (e.g., `mcp_review_` directories and `current_`/`future_` files within them), preventing arbitrary file creation or access in `/tmp`. The use of `subprocess.Popen(..., shell=True)` for launching VS Code is generally a risk, but in this implementation, the command's arguments are carefully constructed from validated path components, minimizing shell injection risks.