---
name: careful
version: 0.1.0
description: Safety guardrails for destructive commands. (gstack)
triggers:
- be careful
- warn before destructive
- safety mode
allowed-tools:
- Bash
- Read
hooks:
PreToolUse:
- matcher: "Bash"
hooks:
- type: command
command: "bash ${CLAUDE_SKILL_DIR}/bin/check-careful.sh"
statusMessage: "Checking for destructive commands..."
---
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## When to invoke this skill
Warns before rm -rf, DROP TABLE,
force-push, git reset --hard, kubectl delete, and similar destructive operations.
User can override each warning. Use when touching prod, debugging live systems,
or working in a shared environment. Use when asked to "be careful", "safety mode",
"prod mode", or "careful mode".
# /careful — Destructive Command Guardrails
Safety mode is now **active**. Every bash command will be checked for destructive
patterns before running. If a destructive command is detected, you'll be warned
and can choose to proceed or cancel.
```bash
mkdir -p ~/.gstack/analytics
echo '{"skill":"careful","ts":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'","repo":"'$(basename "$(git rev-parse --show-toplevel 2>/dev/null)" 2>/dev/null || echo "unknown")'"}' >> ~/.gstack/analytics/skill-usage.jsonl 2>/dev/null || true
```
## What's protected
| Pattern | Example | Risk |
|---------|---------|------|
| `rm -rf` / `rm -r` / `rm --recursive` | `rm -rf /var/data` | Recursive delete |
| `DROP TABLE` / `DROP DATABASE` | `DROP TABLE users;` | Data loss |
| `TRUNCATE` | `TRUNCATE orders;` | Data loss |
| `git push --force` / `-f` | `git push -f origin main` | History rewrite |
| `git reset --hard` | `git reset --hard HEAD~3` | Uncommitted work loss |
| `git checkout .` / `git restore .` | `git checkout .` | Uncommitted work loss |
| `kubectl delete` | `kubectl delete pod` | Production impact |
| `docker rm -f` / `docker system prune` | `docker system prune -a` | Container/image loss |
## Safe exceptions
These patterns are allowed without warning:
- `rm -rf node_modules` / `.next` / `dist` / `__pycache__` / `.cache` / `build` / `.turbo` / `coverage`
## How it works
The hook reads the command from the tool input JSON, checks it against the
patterns above, and returns `permissionDecision: "ask"` with a warning message
if a match is found. You can always override the warning and proceed.
To deactivate, end the conversation or start a new one. Hooks are session-scoped.