By Platform
GitHub Copilot Extensions — indexed and scored
Every Copilot skill in our index — 5 of them. Each one is scored on safety, maintenance, documentation, and adoption so you can compare across the GitHub Copilot Extensions ecosystem without leaving the directory. Vendor: GitHub.
Trending here · top skill scores
Copilot Extensions Preview SDK (JS)
Official JavaScript SDK that handles request verification, response formatting, and prompt streaming for Copilot Extensions.
Blackbeard Copilot Extension
Reference Copilot Extension that responds in the voice of Blackbeard the pirate — the canonical Hello World starter.
RAG Copilot Extension
Reference Go-based Copilot Extension demonstrating retrieval-augmented generation patterns over a custom corpus.
All skills tagged here
5 totalCopilot Extensions Preview SDK (JS)
Official JavaScript SDK that handles request verification, response formatting, and prompt streaming for Copilot Extensions.
Blackbeard Copilot Extension
Reference Copilot Extension that responds in the voice of Blackbeard the pirate — the canonical Hello World starter.
RAG Copilot Extension
Reference Go-based Copilot Extension demonstrating retrieval-augmented generation patterns over a custom corpus.
Function Calling Copilot Extension
Reference Go-based Copilot Extension that demonstrates function calling with confirmation dialogs — issue creation and listing as worked examples.
GitHub Models Copilot Extension
Official Copilot Extension that lets developers list, recommend, and run GitHub Models directly from Copilot Chat — written in TypeScript.