Summary

Slack DM threading is not working in Clawdbot. Neither the replyToMode: "all" config option nor the [[reply_to_current]] tag cause the bot to reply in a thread within DMs.

Steps to Reproduce

1. Configure Slack with DM threading enabled:

{
  "slack": {
    "dm": {
      "enabled": true,
      "replyToMode": "all"
    }
  }
}

2. Send a message to the bot in a Slack DM
3. Observe that the bot's reply does not create/use a thread

Alternatively:

1. Try using the [[reply_to_current]] tag in the bot's response
2. Observe that it still doesn't thread the reply

Expected Behavior

• With replyToMode: "all", bot replies should automatically thread under the triggering message in DMs
• The [[reply_to_current]] tag should force threading regardless of config

Actual Behavior

Bot replies appear as top-level messages in the DM, not as threaded replies. Threading config/tags are silently ignored.

Environment

• Clawdbot version: 2026.1.16-2+ (likely current)
• OS: macOS
• Channel: Slack (Socket Mode)
• Context: Direct Messages (DMs)

Notes

• Issue Slack: Tool notifications leak to main channel when replyToMode=all #1388 fixed threading for channels with replyToMode=all, but DMs still don't work
• Issue [Bug]: Slack response duplicated in both thread and in channel #1163 reports the opposite problem (duplicate threading in channels)
• This appears to be specific to DM contexts

Related Issues

• Slack: Tool notifications leak to main channel when replyToMode=all #1388 (fixed threading in channels)
• [Bug]: Slack response duplicated in both thread and in channel #1163 (duplicate threading issue)