feat: add support for CLIENT_TOOL_EVENT data channel messages #164
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… types - Added ToolCallEvent and ClientEventEvent type definitions - Extended DataChannelMessage enum with TOOL_CALL and CLIENT_EVENT - Added internal events WEBRTC_TOOL_CALL_RECEIVED and WEBRTC_CLIENT_EVENT_RECEIVED - Added public events TOOL_CALL_RECEIVED and CLIENT_EVENT_RECEIVED - Updated StreamingClient to handle and emit new message types - Added event callbacks for consumers to listen to tool calls and client events
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Pull Request Overview
This PR adds support for handling TOOL_CALL and CLIENT_EVENT messages received through WebRTC data channels. The implementation follows the existing pattern used for SPEECH_TEXT messages by defining new event types, extending the data channel message enum, and updating the StreamingClient to properly handle and emit these new message types.
Key Changes:
- Added ToolCallEvent and ClientEventEvent interfaces to define the structure of tool call and client event data
- Extended DataChannelMessage enum and event systems with TOOL_CALL and CLIENT_EVENT variants
- Updated StreamingClient message handler to process and emit the new message types
Reviewed Changes
Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| src/types/streaming/index.ts | Exports new ToolCallEvent and ClientEventEvent type definitions |
| src/types/streaming/ToolCallEvent.ts | Defines interface for tool call events with ID, name, arguments and timestamp |
| src/types/streaming/ClientEventEvent.ts | Defines interface for client events with ID, type, data and timestamp |
| src/types/streaming/DataChannelMessage.ts | Adds TOOL_CALL and CLIENT_EVENT enum values |
| src/types/events/public/AnamEvent.ts | Adds public TOOL_CALL_RECEIVED and CLIENT_EVENT_RECEIVED event types |
| src/types/events/public/EventCallbacks.ts | Registers callback signatures for the new public events |
| src/types/events/internal/InternalEvent.ts | Adds internal WEBRTC_TOOL_CALL_RECEIVED and WEBRTC_CLIENT_EVENT_RECEIVED events |
| src/types/events/internal/InternalEventCallbacks.ts | Registers callback signatures for the new internal events |
| src/modules/StreamingClient.ts | Implements message handlers for TOOL_CALL and CLIENT_EVENT that emit both internal and public events |
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- Removed ToolCallEvent type and TOOL_CALL message type - Renamed ClientEventEvent to ClientToolEvent - Renamed CLIENT_EVENT to CLIENT_TOOL_EVENT across all enums and event handlers - Updated internal event WEBRTC_CLIENT_EVENT_RECEIVED to WEBRTC_CLIENT_TOOL_EVENT_RECEIVED - Updated public event CLIENT_EVENT_RECEIVED to CLIENT_TOOL_EVENT_RECEIVED - Updated StreamingClient to handle only CLIENT_TOOL_EVENT message type
Smidge
changed the title
- Changed event_id to event_uid - Changed event_type to event_name - Changed data to event_data - Added session_id field - Added timestamp_user_action field - Added user_action_correlation_id field - Added used_outside_engine boolean field - Updated comments to reflect actual usage from engine
ao-anam
approved these changes
Oct 31, 2025
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Summary by cubic
Add support for CLIENT_TOOL_EVENT WebRTC data channel messages. StreamingClient now maps the wire payload to a ClientToolEvent and emits typed events apps can handle.
Written for commit 86cb958. Summary will update automatically on new commits.