Building Agents: When to Fold Subagents into Your Main Agent Loop
Anthropic, Thursday, October 22nd, 2026
Anthropic explains when replacing subagents with progressively disclosed context and tools improves agent quality, cost and latency.
Anthropic says that when building agents on Claude Platform, using fewer subagents in favor of progressively disclosed context and tools can improve quality while reducing cost and latency.
Subagents, with their own context windows, tools and instructions under a coordinator, remain useful for verification, parallel work and modular permissions.
The post explains when and how to fold subagents into the main agent loop and introduces a migration kit that guides developers through identifying patterns, evaluating alternatives and verifying the best approach, including a demo on a mock system.