* Update .NET Copilot SDK cookbook: fix On<T> breaking change, add in-process runtime, tool search, and message provenance recipes - Fix breaking change: Session.On is now generic (On<T> where T : SessionEvent). Updated all recipes that used the old non-generic session.On(evt => ...) pattern: error-handling, pr-visualization, managing-local-files, accessibility-report, ralph-loop (both .md and .cs where applicable). - Add new 'In-Process Runtime' recipe (in-process-runtime.md + recipe/in-process-runtime.cs) demonstrating RuntimeConnection.ForInProcess(), live-tested. - Document tool search / deferred loading (SessionConfig.ToolSearch / ToolSearchConfig) in pr-visualization.md, live-tested. - Document typed message provenance (MessageOptions.Source / MessageSource) in error-handling.md, live-tested. - Fix dotnet/README.md recipe index: it was missing Ralph Loop and Accessibility Report entries; also added the new In-Process Runtime entry. - Add In-Process Runtime entry to the top-level cookbook/copilot-sdk/README.md .NET section. - Update dotnet/recipe/README.md runnable-examples table with the new recipe. All existing .NET cookbook recipes were rebuilt and rechecked against the current GitHub Copilot SDK (Copilot CLI 1.0.85); no other breaking changes were found. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Update cookbook model names to current supported models - Replace stale/nonexistent model IDs (gpt-5, claude-sonnet-4.5, claude-opus-4.6, gpt-5.1-codex-mini) with current values from the supported AI models list - Prefer Model = "auto" wherever a specific model isn't load-bearing to the recipe's teaching point - ralph-loop: pin gpt-5.3-codex (current codex-family GA model), since a dedicated coding model is a deliberate, documented choice for the autonomous loop - multiple-sessions: reshape the model narrative so it demonstrates a real explicit-override use case (A/B testing via claude-sonnet-5) instead of two sessions sharing the same hardcoded model Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Use SendAndWaitAsync in in-process runtime recipe Replace the event-based TaskCompletionSource pattern with SendAndWaitAsync so the example waits for the final assistant response, propagates session errors, and uses the SDK timeout behavior. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
🤖 Awesome GitHub Copilot
A community-created collection of custom agents, instructions, skills, hooks, workflows, and plugins to supercharge your GitHub Copilot experience.
Tip
Explore the full collection on the website → awesome-copilot.github.com
The website offers full-text search and filtering across hundreds of resources, plus the Learning Hub for guides and tutorials.
Using this collection in an AI agent? A machine-readable
llms.txtis available with structured listings of all agents, instructions, and skills.
📖 Learning Hub
New to GitHub Copilot customization? The Learning Hub on the website offers curated articles, walkthroughs, and reference material — covering everything from core concepts like agents, skills, and instructions to hands-on guides for hooks, agentic workflows, MCP servers, and the Copilot coding agent.
What's in this repo
| Resource | Description | Browse |
|---|---|---|
| 🤖 Agents | Specialized Copilot agents that integrate with MCP servers | All agents → |
| 📋 Instructions | Coding standards applied automatically by file pattern | All instructions → |
| 🎯 Skills | Self-contained folders with instructions and bundled assets | All skills → |
| 🔌 Plugins | Curated bundles of agents and skills for specific workflows | All plugins → |
| 🍳 Cookbook | Copy-paste-ready recipes for working with Copilot APIs | — |
Install a Plugin
For most users, the Awesome Copilot marketplace is already registered in the Copilot CLI/VS Code, so you can install a plugin directly:
copilot plugin install <plugin-name>@awesome-copilot
If you are using an older Copilot CLI version or a custom setup and see an error that the marketplace is unknown, register it once and then install:
copilot plugin marketplace add github/awesome-copilot
copilot plugin install <plugin-name>@awesome-copilot
Contributing
See CONTRIBUTING.md · AGENTS.md for AI agent guidance · Security · Code of Conduct
The customizations here are sourced from third-party developers. Please inspect any agent and its documentation before installing.
Contributors ✨
Thanks goes to these wonderful people (emoji key):
This project follows the all-contributors specification. Contributions of any kind welcome!
📚 Additional Resources
- VS Code Copilot Customization Documentation - Official Microsoft documentation
- GitHub Copilot Chat Documentation - Complete chat feature guide
- VS Code Settings - General VS Code configuration guide
™️ Trademarks
This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.