Overcoming Tool Space Interference: Bridging Google ADK and A2A SDK via Google Apps Script
Abstract
This article introduces a Google Apps Script-based Agent2Agent architecture to solve Tool Space Interference. While the provided demonstration utilizes a single server for testing purposes, the architecture is designed for distributed task execution. By running multiple category-specific A2A servers in parallel, users can achieve scalable, high-efficiency agent networks.
Introduction
As the Model Context Protocol (MCP) standardizes LLM connectivity, the Agent2Agent (A2A) paradigm is becoming essential for executing complex, multi-step tasks. However, integrating a high volume of tools often triggers “Tool Space Interference (TSI)"—a phenomenon where verbose metadata saturates context windows and degrades reasoning accuracy. Ref Ref Current industry guidelines suggest a “soft limit” of 20 functions per agent; exceeding this threshold frequently results in hallucinations and logic failures.