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Four Loopholes in Denylist-Based Agent Command Approval: Why Blacklisting Shell Commands Fails at Scale

Desktop AI coding agents now ship with approval dialogs that gate shell command execution. The agent proposes a command, a dialog appears, and a human clicks "approve" or "deny." The friction is real…

  • Denylist auto-approval script bypassed by four loopholes in September 2026
  • Allowlist approach replaces denylist, rejecting all four loophole categories
  • Session-scoped allowlist with human-approved command set ensures security

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