Client now has three send channels:
- sendHigh (64 slots): DMs, mentions — drained first by writePump
- send (256 slots): chat messages, reactions — drained second
- sendLow (64 slots): typing, presence — drained last, dropped on overflow
writePump drains high-priority messages before checking normal/low.
PubSub gains PublishHigh/PublishLow alongside existing Publish.
EmitEvents routes events by priority:
- High: SequencedDMEvent, UserTargetedEvent
- Normal: ChannelEvent, VoiceChannelEvent
- Low: ExcludeSenderEvent (typing), PresenceEvent
Slow clients get typing/presence dropped first (sendLowMsg silently
drops), then disconnect on normal buffer overflow, ensuring DMs are
never lost to typing indicator backpressure.
https://claude.ai/code/session_01CBFF3r84ywkJRWwuqw8zD8
Claude
1bf3ca5de3