careful

careful is a skill for Claude Code, Codex from lucas-flatwhite/gstack-ko. It costs 98 tokens per session (703 once invoked), scanned C, a copy of careful, MIT.

A manually triggered safety check for commands that could delete data, rewrite Git history, or affect production systems. It runs only when the user types /careful.

In plain words
What is it for?
Use it when working with production systems, debugging live services, or handling commands that might erase work, data, or deployment resources.
Why use it?
It gives you a warning before risky commands such as recursive deletion, forced pushes, hard resets, database deletion, or Kubernetes resource removal.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/lucas-flatwhite/gstack-ko/careful
Any agent
npx skills add lucas-flatwhite/gstack-ko --skill careful
Clone the repo
git clone --depth 1 https://github.com/lucas-flatwhite/gstack-ko

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for careful

README.md
[![agentmods](https://agentmods.dev/badge/skills/lucas-flatwhite/gstack-ko/careful.svg)](https://agentmods.dev/skills/lucas-flatwhite/gstack-ko/careful)
Your own site
<a href="https://agentmods.dev/skills/lucas-flatwhite/gstack-ko/careful"><img src="https://agentmods.dev/badge/skills/lucas-flatwhite/gstack-ko/careful.svg" alt="Measured on agentmods" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 703 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. Scan, not verified.
Origin 88% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00098 $0.00703
Opus 5 $0.00049 $0.00351
Sonnet 5 $0.00020 $0.00141
Haiku 4.5 $0.00010 $0.00070

Measured 5d ago against content hash 6c54b59fcf54, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

careful scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

Safety guardrails for destructive commands. Warns before rm -rf, DROP TABLE,
Origin

This is a copy

88% identical to careful — 10 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

careful/SKILL.md · 61 lines

What it actually says

Reference-only note: 이 저장소는 upstream gstack의 한국어 문서 레이어입니다. 아래 내용은 upstream 설치본을 기준으로 한 reference이며, 실제 실행은 upstream 환경을 따라야 합니다.

/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.

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.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 61 lines · 98 tokens per session scan C 6c54b59fcf54

Subscribe to this mod's changes

careful is a skill published in the GitHub repository lucas-flatwhite/gstack-ko (43 stars, last pushed 5mo ago), licensed MIT. It adds 98 tokens to every session and 703 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). It is 88% identical to careful, differing in 10 lines, and is treated as a copy.

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