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The Wayback Machine - https://web.archive.org/web/20250124100310/https://docs.github.com/en/copilot/building-copilot-extensions
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Build Copilot Extensions
Building Copilot Extensions
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Quickstart for GitHub Copilot Extensions using agents
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Configuring your GitHub App for your Copilot extension
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Copilot Extensions Glossary
