Php unserialize audit
Skill califio/skills/plugins/php-unserialize-audit/skills/php-unserialize-audit
Claude Code plugins and Codex skills from Calif.io for AI-assisted security research and code auditingFrom the repository description
npx -y skills add califio/skills --skill php-unserialize-auditAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.