validating-cors-policies
Validate CORS policies for security issues and misconfigurations. Use when reviewing cross-origin resource sharing. Trigger with 'validate CORS', 'check CORS policy', or 'review cross-origin'.
npx skills add jeremylongshore/claude-code-plugins-plus-skills --skill validating-cors-policies --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Validating CORS Policies ## Overview Validate Cross-Origin Resource Sharing configurations in web applications and APIs for security misconfigurations that enable unauthorized cross-origin access. This skill analyzes CORS headers, middleware configurations, and server response behavior to detect wildcard origins, reflected origins, credential leakage, and overly permissive header/method exposure
What does the validating-cors-policies skill do?
Validate CORS policies for security issues and misconfigurations. Use when reviewing cross-origin resource sharing. Trigger with 'validate CORS', 'check CORS policy', or 'review cross-origin'.
How do I install it?
Run `npx skills add jeremylongshore/claude-code-plugins-plus-skills --skill validating-cors-policies --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From jeremylongshore/claude-code-plugins-plus-skills, a repository with 2,596 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.