Designs, authors, refactors, and hardens production-grade Cloud Firestore Security Rules (firestore.rules). IMPORTANT: If subagent delegation AND the firestore-rules-author subagent are available in your environment, delegate authoring firestore.rules to the firestore-rules-author subagent. If subagent delegation is unavailable (e.g.
Install
npx skills add firebase/agent-skills --skill firestore-rules-creationnpx skills add firebase/agent-skills --skill firestore-rules-creation -a claude-code -gnpx skills add firebase/agent-skills --skill firestore-rules-creation -a codex -ggemini skills install https://github.com/firebase/agent-skills.git --path skills/firestore-rules-creationgh skill install firebase/agent-skills firestore-rules-creationgit clone --depth 1 https://github.com/firebase/agent-skills /tmp/firebase__agent-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/firebase__agent-skills/skills/firestore-rules-creation ~/.claude/skills/firestore-rules-creation # Claude Code
cp -R /tmp/firebase__agent-skills/skills/firestore-rules-creation ~/.agents/skills/firestore-rules-creation # Codex, Cursor, Gemini CLI, Copilot, OpenCode