AI BriefingGitHub Copilot Adds Cross-Model Review Feature
·2026.04.08 23:13
Key point
A 'Rubber Duck' mode that reviews code with a different AI model has been added to GitHub Copilot CLI.
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Details
A new experimental mode for GitHub Copilot CLI, Rubber Duck, has been released.
This feature leverages a second model from a different AI model family to review plans, implementations, and tests before the agent performs the task. It is designed to make AI agents go through one more level of verification before writing code.
The main purposes are as follows:
- Catching architectural design errors
- Identifying edge cases
- Early detection of cross-file interaction issues
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