From jeremylongshore-claude-code-plugins-plus-skills
Validates CORS (Cross-Origin Resource Sharing) policy configurations and provides best practice recommendations. Auto-activates when working with CORS policies.
How this skill is triggered — by the user, by Claude, or both
Slash command
/jeremylongshore-claude-code-plugins-plus-skills:cors-policy-validatorThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
This skill provides automated assistance for cors policy validator tasks within the Security Fundamentals domain.
This skill provides automated assistance for cors policy validator tasks within the Security Fundamentals domain.
This skill activates automatically when you:
Example: Basic Usage Request: "Help me with cors policy validator" Result: Provides step-by-step guidance and generates appropriate configurations
| Error | Cause | Solution |
|---|---|---|
| Configuration invalid | Missing required fields | Check documentation for required parameters |
| Tool not found | Dependency not installed | Install required tools per prerequisites |
| Permission denied | Insufficient access | Verify credentials and permissions |
Part of the Security Fundamentals skill category. Tags: security, authentication, validation, owasp, secure-coding
npx claudepluginhub jeremylongshore/claude-code-plugins-plus-skills --plugin j-rigValidates CORS configurations in web apps/APIs for security misconfigurations like wildcard origins, origin reflection, permissive methods/headers.
Audits target CORS posture for origin reflection, credentials/wildcard mismatch, missing Vary header, and preflight caching issues. Triggers: 'audit cors', 'check cors policy'.
Verifies CORS policy enforcement by testing origin reflection, null origin, subdomain bypass, wildcard-with-credentials, and preflight correctness using targeted curl and browser tests.