Develop evidence-backed structural and architectural security hardening proposals from vulnerability disclosures, supplied findings, incident or assessment documents, source code, or a completed Codex Security scan.
Install
npx skills add openai/plugins --skill propose-security-hardeningnpx skills add openai/plugins --skill propose-security-hardening -a claude-code -gnpx skills add openai/plugins --skill propose-security-hardening -a codex -ggemini skills install https://github.com/openai/plugins.git --path plugins/codex-security/skills/propose-security-hardeninggh skill install openai/plugins propose-security-hardeninggit clone --depth 1 https://github.com/openai/plugins /tmp/openai__plugins
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/openai__plugins/plugins/codex-security/skills/propose-security-hardening ~/.claude/skills/propose-security-hardening # Claude Code
cp -R /tmp/openai__plugins/plugins/codex-security/skills/propose-security-hardening ~/.agents/skills/propose-security-hardening # Codex, Cursor, Gemini CLI, Copilot, OpenCode