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GitHub Copilot CLI Gets Smarter About Subagent Delegation

GitHub says Copilot CLI now uses “smarter subagent delegation,” a behind-the-scenes orchestration improvement rolled out to all production traffic. The change makes the main agent handle focused work directly, while reserving subagents for broader, independent, or parallelizable tasks. In production A/B testing, GitHub reports 23% fewer tool failures per session, lower search and edit failures, reduced wait time, and no quality regression.