Bug type

Regression (worked before, now fails)

Beta release blocker

No

Summary

Bug Report: Discord message tool send fails with "Unknown Channel" in 2026.5.4

OpenClaw version: 2026.5.4 (upgraded from 2026.5.2)
Runtime: Docker on TerraMaster NAS (F2-425), host network
Channel: Discord (bot token, DM-only, allowFrom configured)

Summary

The message tool action=send to Discord fails consistently with "Unknown Channel", even though:

• The bot receives Discord DMs correctly (user can message the bot and I respond)
• openclaw channels resolve discord:1439091261670948987 correctly resolves the user ID
• Cron job announce delivery sometimes works (some Rheinmetall reports were delivered)
• Bot is connected and shows OK in openclaw status

Steps to reproduce

Steps to reproduce

1. Configure Discord channel with bot token, dmPolicy: allowlist, allowFrom: ["<user_id>"]

2. Attempt to send a DM using the message tool:

3. Result: Unknown Channel error

Expected behavior

Expected behavior

Message should be delivered to the user's Discord DM.

Actual behavior

From gateway log:

[tools] message failed: Unknown Channel raw_params={"action":"send","message":"...","target":"1439091261670948987"}

Note: channels.resolve works fine:
discord:1439091261670948987 -> 1439091261670948987

Additional context

• This persisted through upgrade from 2026.5.2 → 2026.5.4
• Restarting the gateway does not fix it
• Cron announce delivery to the same Discord user sometimes works, sometimes fails
• The bot is confirmed connected — user is actively messaging it right now

Suggested investigation

The discrepancy between:

• channels.resolve succeeding (user ID is valid)
• message send failing (Unknown Channel)
• cron announce delivery sometimes succeeding

suggests the issue may be in how the message tool routes the target parameter vs. how the cron announce delivery resolves it. Possibly the tool's Discord send path is not using the resolved user ID correctly.

OpenClaw version

2026.5.4

Operating system

Linux 6.1.120+ x64

Install method

Docker ghcr.io/openclaw/openclaw:2026.5.4

Model

minimax/MiniMax-M2.7

Provider / routing chain

discord:1439091261670948987 (bot token, DM-only)

Additional provider/model setup details

No response

Logs, screenshots, and evidence

Impact and severity

No response

Additional information

No response