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davila7__claude-code-templates/cli-tool/components/hooks/security/shell-wrapper-guard.json
yurukusa 5299c0c18d Add shell-wrapper-guard hook to security category
Detects destructive commands hidden in shell wrappers (sh -c, bash -c,
python3 -c, node -e, etc). Complements dangerous-command-blocker by
catching 8 bypass vectors that evade direct command checks.
From cc-safe-setup (667 hooks, 9,200+ tests, 800hrs autonomous operation).
https://github.com/yurukusa/cc-safe-setup
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-13 17:45:08 +09:00

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{
"description": "Detects destructive commands hidden inside shell wrappers (sh -c, bash -c, python3 -c, node -e, perl -e, ruby -e). Complements dangerous-command-blocker by catching bypass vectors like 'sh -c \"rm -rf /\"' that evade direct command checks. Covers 8 bypass patterns: interpreter one-liners, nested wrappers, pipe-to-shell, here-strings, and env-based wrappers.",
"supportingFiles": [
{
"source": "shell-wrapper-guard.sh",
"destination": ".claude/hooks/shell-wrapper-guard.sh",
"executable": true
}
],
"hooks": {
"PreToolUse": [
{
"matcher": "Bash",
"hooks": [
{
"type": "command",
"command": "bash .claude/hooks/shell-wrapper-guard.sh"
}
]
}
]
}
}