No useEffect

Never call useEffect directly. Use derived state, event handlers, data-fetching libraries, or useMountEffect instead.

Quick Reference

• Repo linting: bun lint --format json <package-path>
• Escape hatch hook: useMountEffect from @onequery/ui/hooks/use-mount-effect
• React docs: You Might Not Need an Effect
• Origin: https://x.com/alvinsng/status/2033969062834045089

Comment: the repo currently has useMountEffect, but it does not appear to have a global lint rule that already bans useEffect. Treat this skill as the policy source unless that restriction is added later.