About
This Claude Skill detects and blocks prompt injection attacks in email content by scanning for patterns like fake system outputs and instruction hijacking. It should be used when reading, processing, or summarizing emails to prevent automated execution of malicious instructions. The skill flags suspicious content and always requires explicit user confirmation before acting on any directives found in an email.
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/prompt-defenseCopy and paste this command in Claude Code to install this skill
GitHub Repository
Frequently asked questions
What is the prompt-defense skill?
prompt-defense is a Claude Skill by openclaw. Skills package instructions and resources that Claude loads on demand, so Claude can perform prompt-defense-related tasks without extra prompting.
How do I install prompt-defense?
Use the install commands on this page: add prompt-defense 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 prompt-defense belong to?
prompt-defense is in the Design category, tagged ai and design.
Is prompt-defense free to use?
Yes. prompt-defense 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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