Google Ads API Developer Assistant v4.0.0 Overhauls Tool with Unified Plugin Architecture and AI Agent Support

Google unveiled a major overhaul of its Google Ads API Developer Assistant, shifting from a standalone local tool to a unified plugin architecture that integrates with AI coding environments like Antigravity and Claude Code. The new version includes GAQL query validation, ad hoc performance reporting via natural language, troubleshooting diagnostics, and schema inspection—capabilities designed to ground AI-assisted development in actual Google Ads API definitions rather than relying solely on model hallucinations, according to the announcement. The update promises faster performance, lower resource consumption, and reduced token usage through more efficient schema loading and caching.