Get a second-opinion code review from OpenAI Codex CLI (GPT-5.6-Sol xhigh). Use when the user asks for a code review, wants a second pair of eyes, or you want to validate significant changes.
Route implementation work to Codex CLI; Claude specs, reviews, verifies. Use when a task is a work order — implementation from a settled spec, refactors, mechanical migrations, bug fixes with a known repro, test writing, CI fixes, dependency bumps, or bulk codebase exploration.
Avoid useEffect as a best practice. Use this skill when writing React components or refactoring existing useEffect calls or when explicitly asked to remove useEffect. Provides the five replacement patterns and the useMountEffect escape hatch.
Brainstorm brandable domain names and check availability in real time via RDAP. Use this skill when the user asks for domain name suggestions.