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GitHub Copilot CLI Launches 'Rubber Duck' Feature for AI-Powered Code Review

By

Zac Zuo

1mo ago· 2 min readenProduct

Summary

GitHub Copilot has launched a new experimental feature called 'Rubber Duck' in its CLI tool. This feature uses a second AI model from a different family to review plans, implementations, and tests before the agent proceeds, aiming to catch architectural mistakes, edge cases, and cross-file issues earlier. GitHub Copilot is an AI pair programmer that works directly in code editors, suggesting lines or entire functions, powered by OpenAI and trained on billions of lines of public code.

Key quotes

· 4 pulled
Rubber Duck is a new experimental mode in GitHub Copilot CLI that uses a second model from a different AI family to review plans, implementations, and tests before the agent moves forward.
It is designed to catch architectural mistakes, edge cases, and cross-file issues earlier.
GitHub Copilot works alongside you directly in your editor, suggesting whole lines or entire functions for you.
Powered by OpenAI its trained on billions of lines of public code, saving you time and helping you stay focused.
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GitHub Copilot works alongside you directly in your editor, suggesting whole lines or entire functions for you. Powered by OpenAI its trained on billions of lines of public code, saving you time and helping you stay focused.

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