* 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>
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Add complete Java cookbook matching the pattern of existing .NET, Go,
Node.js, and Python cookbooks. All 7 recipes included:
- Ralph Loop: Autonomous AI task loops with JBang
- Error Handling: try-with-resources, ExecutionException, timeouts
- Multiple Sessions: Parallel sessions with CompletableFuture
- Managing Local Files: AI-powered file organization
- PR Visualization: Interactive PR age charts
- Persisting Sessions: Save/resume with custom IDs
- Accessibility Report: WCAG reports via Playwright MCP
Each recipe includes both markdown documentation and a standalone
JBang-runnable Java file in recipe/.
Add a new cookbook recipe that generates WCAG accessibility reports using
the Playwright MCP server. Includes streaming output, structured report
formatting, and optional Playwright test generation.
- C#, TypeScript, Python, and Go implementations
- Markdown documentation for each language
- Updated cookbook.yml, copilot-sdk README, and package.json
Add iterative RALPH-loop (Read, Act, Log, Persist, Halt) pattern
implementations for all four supported languages:
- C#/.NET: ralph-loop.cs with documentation
- Node.js/TypeScript: ralph-loop.ts with documentation
- Python: ralph_loop.py with documentation (async API)
- Go: ralph-loop.go with documentation
Each recipe demonstrates:
- Self-referential iteration where AI reviews its own output
- Completion promise detection to halt the loop
- Max iteration safety limits
- File persistence between iterations
Verified against real Copilot SDK APIs:
- Python: fully verified end-to-end with github-copilot-sdk
- Node.js: fully verified end-to-end with @github/copilot-sdk
- C#: compiles and runs successfully with GitHub.Copilot.SDK
- Go: compiles against github.com/github/copilot-sdk/go v0.1.23
Jon GallowayandCopilot
Bruno BorgesandCopilot
Aaron Powell
Anthony Shaw