<a href="https://claudecowork-me.com/en/glossary/plugin-workflows/sub-agent/" target="_blank" rel="noopener">Sub-Agent</a> Pooling is a resource management pattern in which an Orchestrator doesn't create a brand-new Sub-agent instance for every task, but instead maintains a pool of pre-initialized, reusable Sub-agent resources — when a task arrives, it borrows an idle Sub-agent from the pool, processes the task, then returns it to the pool, reducing repeated initialization cost and controlling the ceiling on how many Sub-agents can execute concurrently.