Streaming Preview:
- Real-time message preview during agent response (like "typing" indicator)
- Supported on Telegram, Discord, and Feishu
- Configurable interval, min delta chars, and max preview length
Rate Limiting:
- Per-session sliding-window rate limiter
- Prevents users from flooding the bot with messages
- Configurable max messages and window size
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>