Prompt Injection Auditor
The security auditor for AI agents. Detect prompt injection, secret leaks, and unsafe tool access in SKILL.md files.
Free
Works with the AI tools you already use
prompt-injection-auditor
Example session with this skill installed
Audit my file-manager SKILL.md for any security risks like prompt injection or hardcoded secrets before I deploy it.
- Read your context and instructions
- Compiled the prompt-injection-auditor
CRITICAL: Unsanitized Shell Execution at line 12: rm -rf {{directory}}. Template variable injected directly into shell. Fix: Use allowlist for paths.
HIGH: Hardcoded Secret at line 15: sk-12345.... Fix: Move to env variables.
RESULT: REJECT - Do not deploy.
Connects securely to your tools. The creator never sees your data.
About this skill
Secure Your Agent Configuration Layer
Prompt injection is the leading attack vector against AI agents. While traditional security tools scan your application code, they completely miss vulnerabilities hidden within your SKILL.md files, system prompts, and agent configurations. This specialized auditor fills that gap by analyzing the prompt/agent configuration layer where injection attacks, secret leakage, and tool abuse originate.
Advanced Threat Detection
The auditor scans for five critical risk categories using pattern-matching logic optimized for LLM instructions:
- Direct & Indirect Injection: Detects unsanitized shell execution, system prompt override patterns, and unsafe template rendering.
- Secret Exposure: Flags hardcoded API keys, tokens, and environment variable leaks within prompt text.
- Overly Permissive Access: Identifies unrestricted filesystem access, missing domain allowlists for web tools, and unbounded recursion loops.
- Data Exfiltration: Roots out unauthorized web POST capabilities and unsafe file upload patterns.
Why Developers Need This
Prompting an AI yourself to "find security holes" is unreliable and lacks a structured framework. This skill provides a reproducible, severity-scored report with specific line references and actionable remediation steps. It supports major agent frameworks including Claude Code, Cursor, and GitHub Copilot, ensuring your custom skills are production-ready and compliant with security standards like OWASP LLM Top 10.
How to install
Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.
- 1
Download the ZIP
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- 2
Unzip into your skills folder
Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.
- 3
Ask your agent to use it
Restart the agent if it was already running. It picks the skill up automatically - no config needed.
Skills folder by agent
Click the path to copy it. Create the folder if it does not exist yet.
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