Upgrade Copilot SDK to 1.0.5 and implement direct HTTP transport#2683
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Update @github/copilot-sdk from 0.2.0/0.3.0 to 1.0.5 and implement direct-CAPI HTTP transport for model requests. This replaces the SDK's session-based API with direct HTTP calls to the session's provider endpoint, reducing latency and SDK overhead. Key changes: - Add copilotDirectTransport.ts with HTTP-based chat model implementation - Refactor copilotModels.ts to use endpoint provider pattern with caching - Create CopilotEndpointProvider for endpoint acquisition and refresh management - Update RuntimeConnection API usage for SDK 1.0.5 compatibility - Add comprehensive tests for direct transport including error recovery
robgruen
approved these changes
Jul 15, 2026
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This pull request introduces significant improvements to the Copilot AI client by adding a new direct transport layer, updating dependencies, and enhancing test flexibility. The main focus is enabling direct HTTP requests to Copilot endpoints, improving compatibility, and ensuring robust endpoint management.
Key changes include:
Copilot Direct Transport Integration
copilotDirectTransport.tsthat implements a direct HTTP transport for Copilot, supporting endpoint acquisition, credential management, streaming, and vision input. This improves reliability and matches Azure/OpenAI HTTP behavior for retries, timeouts, and throttling.Dependency Updates
@github/copilot-sdkto version1.0.5in bothts/examples/workflow/engine/package.jsonandts/packages/aiclient/package.jsonfor improved Copilot SDK compatibility and features. [1] [2]