AI Agent Skill: Live Exposure Check for App Security

AI Agent Skill: Live Exposure Check for App Security

The Live Exposure Check for App Security skill enables developers to assess an application's exposed elements from its running URL. It identifies potential security issues, such as exposed secrets, accessible configuration files, and improper security settings.

What this skill does

• Analyzes the JavaScript bundle for any exposed secrets.
• Detects the presence of accessible configuration files like .env or .git.
• Identifies missing security headers and weak cookie flags.
• Evaluates Cross-Origin Resource Sharing (CORS) policy for excessive permissiveness.
• Verifies if Stripe webhooks are unverified.
• Checks for unthrottled endpoints, improving security by highlighting areas vulnerable to abuse.
• Examines Supabase or Firebase setups to identify data access weaknesses with anonymous keys.
• Requires explicit confirmation of host ownership to run checks on non-localhost environments.

Who it is for

This skill is designed for developers and software teams using AI coding assistants like Claude Code, Cursor, or Codex to ensure their applications are secure before deployment or further testing.

Use cases

• Pre-launch security verification: Ensures that a staging or live application does not leak sensitive data before going public.
• Continuous security review: Assists teams in routine assessments of their applications for potential vulnerabilities.
• Educational purposes: Helps developers learn about common security concerns and how they might manifest in a running application.

Technical details

• Requires user-provided URLs; checks restricted to owned applications only.
• By default, performs read-only operations using HTTP methods like GET, HEAD, and OPTIONS.
• Optional probes, such as webhooks and rate-limits, utilize POST requests.
• Automatic adaptation for Python execution across different systems.

For authorised security testing, defensive research and educational use only.

Source & Licence

This package is built on open-source work published by ReazGan (ReazGan/ward) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.