Cloud Firestore Database and Operations [!IMPORTANT] Security Rules Authoring ( ) Whenever your task requires creating, authoring, or modifying : - If subagent delegation AND the subagent are available : delegate authoring to the subagent rather than writing directly in the main agent. - If subagent delegation is unavailable (e.g., subagents not enabled in the IDE) OR is not installed : read and follow the skill to write directly. Before setting up dependencies, writing data models, or configuring security rules, you MUST always identify the Firestore instance edition. 1. Instance Selection a…