Two OpenClaw agents on different PCs — can they talk to each other via Telegram group?

Running two OpenClaw agents on separate machines, each with their own Telegram bot. Both bots are in the same Telegram group. The problem: Bot A can't receive messages from Bot B because Telegram's Bot API doesn't deliver bot-to-bot messages.

Has anyone solved agent-to-agent communication across different OpenClaw instances on different computers?

Current setup:

- Machine 1: Patrick bot

- Machine 2: James bot

- Both in same Telegram group

- Human messages trigger both bots fine

- Bot messages are silently dropped by Telegram when they talk to each other

Possible solutions we're considering:

1. OpenClaw hooks/webhook endpoint for direct HTTP calls between agents

2. Shared API middleman

3. Something else?

Maybe use a different platform like discord? But I have not tried that.