A practical guide to using session hooks and event handling in the GitHub Copilot SDK for .NET/C#. Covers subscribing to streaming delta events via session.On(), intercepting requests with SessionHooks.OnUserPromptSubmitted for validation and rate limiting, observing tool call lifecycle events, implementing fault-tolerant error handling with Polly retry policies, building an OpenTelemetry-based observability layer, and managing session lifecycle with audit trails. Includes complete C# code examples for each pattern.
Table of contents
Understanding Session Hooks and Event Handling in the Copilot SDKSubscribing to AssistantMessageDeltaEventImplementing Request Interceptors with SessionHooksHandling Tool Call EventsError Handling and Fault ToleranceBuilding an Observability LayerSession Lifecycle HooksFrequently Asked QuestionsConclusionSort: