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Rubber Duck

Rubber Duck

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Cross-model reviews in GitHub Copilot CLI

Artificial IntelligenceGitHubDevelopment

What it does

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.

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