Multi-Tool Parallel Batch Invocation Protocol

Overview

When an agent needs to inspect 4 related files (e.g., schema.prisma, auth.ts, routes.ts, and types.ts), naive agents execute 4 sequential back-and-forth turns:

• Turn 1: Call view_file("schema.prisma") $\rightarrow$ Wait for response
• Turn 2: Call view_file("auth.ts") $\rightarrow$ Wait for response
• Turn 3: Call view_file("routes.ts") $\rightarrow$ Wait for response
• Turn 4: Call view_file("types.ts") $\rightarrow$ Wait for response

Sequential tool calling re-sends the entire conversation transcript 4 separate times, incurring 4 API roundtrips and 15 to 20 seconds of latency.

The Multi-Tool Batch Invocation Protocol leverages modern function calling specifications to emit multiple tool calls in a single turn (tool_calls: [...]), executing independent operations concurrently via asyncio.gather or Promise.all.

Sequential Single-Tool Turns vs. Parallel Batch Tooling