Feishu: streaming replies show up as duplicate messages

Symptoms

• In Feishu group chats, turning on streaming causes two identical replies for a single user message.
• The duplication disappears when you set channels.feishu.streaming: false.
• This can happen with both card and non-card render modes, depending on plugin/core versions.

Cause

Feishu streaming is implemented as a “progressive delivery” mode. If the channel/plugin path sends:

• a streaming update, and
• a final message

as two separate sends (instead of “update in place”), Feishu users will see two messages that look identical.

This is more likely when:

• plugin version and OpenClaw core version are out of sync (especially beta plugin builds), or
• block streaming / coalescing behavior disagrees with the streaming sender’s “final” behavior.

Fix

1) Keep streaming: true, disable block streaming

This is the smallest change that often removes the duplicate “final send” behavior while keeping streaming UX:

{
  channels: {
    feishu: {
      streaming: true,
      blockStreaming: false,
    },
  },
}

Restart the gateway after editing config:

openclaw gateway restart

2) If duplicates remain, disable streaming entirely (most stable)

{
  channels: {
    feishu: {
      streaming: false,
    },
  },
}

Then restart:

openclaw gateway restart

3) Align Feishu plugin version with your OpenClaw version

If you’re running a beta plugin build (or any plugin version far from your OpenClaw core version), update or downgrade so they match more closely, then retest.

Why this helps: streaming/card rendering paths change across versions, and version skew can surface as “double send”.

Verify

• Send a single message in a Feishu group chat.
• Confirm you receive exactly one assistant reply (not two).
• If you keep streaming enabled, confirm you still see progressive output without an extra final duplicate.

If it’s still happening, capture:

• your channels.feishu.* config block
• plugin version + OpenClaw version
• one gateway log snippet around the Feishu send path

Related

• /channels/feishu
• /guides/openclaw-configuration
• OpenClaw docs: Feishu, gateway logging