n8n community edition blocks env var access in expressions. Hardcoded TELEGRAM_USER_ID for single-user authentication. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Telegram Trigger node listens for messages - IF node authenticates via $env.TELEGRAM_USER_ID - Code node formats echo with timestamp - Telegram Send node replies to authorized users - False branch has no connections (silent ignore)
Lucas Berger