Copilot CLI Tutorial #9 - Custom Agents — AI Summary

Summary

Learn how to build and deploy custom sub-agents to extend GitHub Copilot’s functionality. These specialized agents offload complex tasks, maintain cleaner context windows, and execute parallel workflows for more efficient autonomous coding.

Key Topics

• Sub-Agent / Custom Agent: A sub-agent is a modular AI program that performs specialized functions. It matters because it offloads specific, high-intent tasks from the main AI assistant, leading to better results through targeted instructions and better performance due to reduced context window pressure.
• Context Isolation: Context isolation allows sub-agents to process their own instructions and data without impacting the primary chat context. This ensures that the main agent remains 'smart' and focused on high-level goals without being overwhelmed by the low-level details of a specific sub-task.

Key Takeaways

• Identify one recurring, multi-step coding task in your current project and build a custom sub-agent for it.