WebSocket agent assist subscription failing with 403 and binary frame parsing errors in Electron

Running into a wall with the WebSocket subscription for agent assist suggestions inside the Electron main process. The ws://api.mypurecloud.com/api/v2/agentassist endpoint is accepting the initial CONNECT frame, but the subsequent SUBSCRIBE payload for suggestions is returning a 403 Forbidden on the server side. The OAuth token definitely has the agentassist:suggestions:read scope.

The subscription JSON looks like this:

{
 "id": "sub-001",
 "event": "suggestions",
 "data": {
 "interactionId": "uuid-here",
 "contextWindow": 500,
 "filters": ["knowledge", "script"],
 "confidenceThreshold": 0.85
 }
}

Validating subscription schemas against concurrent connection quotas is supposed to prevent resource exhaustion, yet the error logs point to a timeout in the content library fetch service. The suggestion type filters are returning empty arrays even though the content library has matching articles. Dropping the raw buffer from the incoming binary frames, the parser is throwing ERR_BUFFER_OUT_OF_BOUNDS because the frame length header doesn’t match the payload size. It’s possible the Genesys WebSocket server is compressing the suggestion objects or using a custom framing format that Node’s standard ws library isn’t handling correctly.

Implementing the suggestion stream handler for automated agent support orchestration requires precise handling of the binary frames, which seems impossible without the frame spec. The confidence threshold evaluation pipeline is stuck waiting for data that never arrives in the correct format. The interaction ID injection is correct, verified via the debug console, but the server rejects the subscription payload after the first successful ping. A backpressure queue exists in the renderer process to handle the burst of suggestions, yet the stream handler is dropping packets whenever the connection drops and auto-reconnects.

The ranking logic based on confidenceScore is working fine locally, but the latency tracking shows a 400ms spike every time the subscription revalidates. Trying to sync suggestion click events with the external knowledge platform via API exports is causing further delays in the relevance scoring algorithm. The assist audit logs for compliance verification are missing entries whenever the stream handler restarts. Anyone else dealing with binary frame parsing for agent assist streams? The documentation is sparse on the exact byte structure for the suggestion updates.

Quick question first: are you passing the subscription identifier directly in the WebSocket message header, or embedding it inside the JSON body payload? The 403 response typically originates from how the platform validates the subscriptionId against the active session token during the handshake phase. When the Electron main process handles incoming frames, the routing engine expects a strict JSON structure for the SUBSCRIBE action. If the payload lacks the required type and config keys, the server rejects the request before it even checks the OAuth scopes. Missing that key breaks the handshake.

The validation sequence checks the message format first. You’ll need to structure the subscription frame exactly like this:

{
 "type": "SUBSCRIBE",
 "subscriptionId": "agent-assist-suggestions-01",
 "config": {
 "suggestionTypes": ["intent", "action"],
 "language": "en-US"
 }
}

Passing the bearer token in the Authorization header remains mandatory. The platform won’t infer context from a malformed frame. If the binary parser throws errors, it’s likely because the WebSocket client is attempting to decode a text frame as binary data. Switch the payload transmission to text mode in the Electron ws configuration. The server drops the connection when frame types mismatch. Keep the timeout values under three seconds during the initial subscribe call. The platform throttles aggressive reconnection attempts.