context window isolation

Article explicitly describes how each subagent nesting level gets its own context window, preventing context pollution—this is context isolation architecture in practice.

Core architectural choice: 'uses its own context window separate from the main conversation' enables specialization without context contamination

Sub-agents and swarm mode both isolate context windows—preventing context pollution across agents. This is a direct context engineering strategy.

By decomposing into specialized nodes, each agent operates in isolation with focused context rather than maintaining global context—this implicitly manages context window usage