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kissgyorgytoday at 12:16 PM1 replyview on HN

I simply forbid or force Claude Code to ask for permission to run a dangerous command. Here are my command validation rules:

    (
        r"\bbfs.*-exec",
        decision("deny", reason="NEVER run commands with bfs"),
    ),
    (
        r"\bbfs.*-delete",
        decision("deny", reason="NEVER delete files with bfs."),
    ),
    (
        r"\bsudo\b",
        decision("ask"),
    ),
    (
        r"\brm.*--no-preserve-root",
        decision("deny"),
    ),
    (
        r"\brm.*(-[rRf]+|--recursive|--force)",
        decision("ask"),
    ),

find and bfs -exec is forbidden, because when the model notices it can't delete, it works around with very creative solutions :)

Replies

Espressosaurustoday at 4:08 PM

This feels a lot like trying to sanitize database inputs instead of using prepared statements.