csp-header-generator

Generate deployable CSP plans with staged rollout guidance from live specs.

1|Updated Apr 16, 2026
One-click install
npx skills add https://github.com/FrogAi/Xenopus --skill csp-header-generator-frogai
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: csp-header-generator
Source: https://github.com/FrogAi/Xenopus/tree/main/Gemini/Skills/Gemini%203.1%20Pro/csp-header-generator
Command: npx skills add https://github.com/FrogAi/Xenopus --skill csp-header-generator-frogai

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Produces a safe, deployable Content-Security-Policy for modern web apps without modifying application code, including guidance for rollout, testing, and verification.

Core Features & Use Cases

  • Live spec + rubric fetch from authoritative sources for CSP, Permissions-Policy, Referrer-Policy, COOP/COEP/CORP, and observatory criteria.
  • Every source cited; each directive entry traces to a file:line reference.
  • Prefer nonce-based CSP with strict-dynamic; discuss tradeoffs with hash-based and allowlists.
  • Staged rollout (report-only → enforce) with verification passes.
  • Complementary headers including Permissions-Policy, Referrer-Policy, COOP/COEP/CORP, X-Content-Type-Options, and HSTS.
  • Honest about dynamic content and inline scripts where precise static detection is difficult.
  • Read-only guidance; no automated deployment of CSP.
  • Per-request nonce rotation guidance across SSR frameworks.

Quick Start

Provide your app scope and current CSP needs, and I will generate a production-grade CSP plan with a report-only rollout.

Frequently Asked Questions about csp-header-generator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate a safe Content-Security-Policy header for a modern web app?▼

To generate a safe Content-Security-Policy, this tool synthesizes live specs and tested configurations to produce a deployable policy. It handles external resources, inline scripts, and dynamic content without modifying application code.

How does strict-dynamic with per-request nonce rotation work for CSP?▼

Strict-dynamic with per-request nonce rotation allows trusted scripts to load without explicit allowlists. The generator provides guidance on implementing this approach across SSR frameworks, discussing tradeoffs compared to hash-based methods.

What is the best way to roll out a Content-Security-Policy without breaking my app?▼

The best way to roll out a Content-Security-Policy is a staged approach from report-only to enforcement. This tool provides a rollout plan with verification passes to ensure your policy works correctly before full enforcement.

Does this CSP generator handle complementary security headers like COOP, COEP, and HSTS?▼

Yes, this CSP generator handles complementary security headers including Permissions-Policy, Referrer-Policy, COOP, COEP, CORP, X-Content-Type-Options, and HSTS. It cites authoritative sources for every directive entry.

What are the limitations of using automated CSP generation for dynamic content and inline scripts?▼

Automated CSP generation is honest about limitations where precise static detection of dynamic content and inline scripts is difficult. It provides read-only guidance and configuration plans rather than automatically deploying policies to your application.