About
This security skill prevents prompt injection attacks when using external skills by requiring developers to rewrite skill functionality from scratch instead of copying code. It sanitizes hidden threats like HTML comments, Unicode tricks, and embedded malicious instructions. Use this skill whenever installing or adding skills from external sources like GitHub or ClawHub.
Quick Install
Claude Code
Recommendednpx skills add openclaw/skills -a claude-code/plugin add https://github.com/openclaw/skillsgit clone https://github.com/openclaw/skills.git ~/.claude/skills/skill-firewallCopy and paste this command in Claude Code to install this skill
GitHub Repository
Frequently asked questions
What is the skill-firewall skill?
skill-firewall is a Claude Skill by openclaw. Skills package instructions and resources that Claude loads on demand, so Claude can perform skill-firewall-related tasks without extra prompting.
How do I install skill-firewall?
Use the install commands on this page: add skill-firewall to Claude Code as a plugin, or clone its repository into your skills directory, then restart Claude so it picks up the skill.
What category does skill-firewall belong to?
skill-firewall is in the Meta category, tagged general.
Is skill-firewall free to use?
Yes. skill-firewall is listed on AIMCP and free to install. It runs inside Claude, so no separate service account is required to use the skill itself.
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