Add chatSessionId to chat.modelChange telemetry#322579
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Pull request overview
This PR adds a chat-session correlation identifier to the chat.modelChange telemetry event so model-picker switches can be associated with the active chat conversation/session.
Changes:
- Extend the model picker delegate API with an optional
getConversationId()hook. - Emit
conversationIdon thechat.modelChangetelemetry event when the user selects a different model. - Wire the chat input’s delegate implementation to derive the ID from the current session resource.
Show a summary per file
| File | Description |
|---|---|
| src/vs/workbench/contrib/chat/browser/widget/input/modelPickerActionItem.ts | Adds optional delegate method for providing the current conversation/session correlation id. |
| src/vs/workbench/contrib/chat/browser/widget/input/chatModelPicker.ts | Extends chat.modelChange telemetry schema and logs the conversation id on model selection. |
| src/vs/workbench/contrib/chat/browser/widget/input/chatInputPart.ts | Implements the delegate hook by converting the current session resource to an id. |
Copilot's findings
- Files reviewed: 3/3 changed files
- Comments generated: 1
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Sid200026
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benibenj
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Jun 23, 2026
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Correlate explicit model-picker switches with the conversation by emitting the chat session id