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openclaw - 💡(How to fix) Fix Inter-session message replies route to webchat instead of originating channel (Slack) [1 comments, 1 participants]

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openclaw/openclaw#59320•Fetched 2026-04-08 02:26:02
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mcwong-engmcwong-eng
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Fix Action

Workaround

Currently unknown. The coordinator agent cannot control the delivery channel of its reply to inter-session messages.

Code Example

[agent:nested] session=agent:main:slack:channel:c0apvt8n95z run=d6a68f81 channel=webchat gh-lead's response:
[agent:nested] session=agent:main:slack:channel:c0apvt8n95z run=9a10c013 channel=webchat ✅ Async pattern working...
RAW_BUFFERClick to expand / collapse

Bug Description

When agent A sends a message to agent B via sessions_send, and agent B replies, the reply is delivered to webchat instead of the originating channel (Slack in this case).

Steps to Reproduce

  1. Agent main is running in session agent:main:slack:channel:c0apvt8n95z (a Slack channel session)
  2. Agent main calls sessions_send(sessionKey='agent:gh-lead:main', timeoutSeconds=0)
  3. gh-lead processes the request and sends results back via sessions_send to agent:main:slack:channel:c0apvt8n95z
  4. This triggers a new run on agent main's Slack channel session
  5. Agent main produces reply content intended for the Slack channel

Expected Behavior

The reply should be delivered to Slack channel C0APVT8N95Z (the channel associated with the session).

Actual Behavior

The reply is delivered to webchat — the originating channel of the sessions_send call from gh-lead, NOT the Slack channel that the target session belongs to.

Evidence from Logs

Every inter-session run on the Slack session shows channel=webchat:

[agent:nested] session=agent:main:slack:channel:c0apvt8n95z run=d6a68f81 channel=webchat gh-lead's response:
[agent:nested] session=agent:main:slack:channel:c0apvt8n95z run=9a10c013 channel=webchat ✅ Async pattern working...

The session key clearly indicates Slack (slack:channel:c0apvt8n95z), but the run's delivery channel resolves to webchat — which appears to be inherited from gh-lead's session context rather than the target session's channel.

Impact

This breaks the async multi-agent communication pattern where:

  • Coordinator agent receives work requests on Slack
  • Delegates to specialist agents via sessions_send(timeout=0)
  • Specialist agents report back via sessions_send
  • Coordinator's reply should go back to Slack but goes to webchat instead

The user never sees the coordinator's relay of specialist results.

Environment

  • OpenClaw 2026.3.28 (f9b1079)
  • macOS (arm64), Node 24.14.1
  • Slack channel integration
  • Multi-agent setup: main (coordinator) + gh-lead (specialist)

Workaround

Currently unknown. The coordinator agent cannot control the delivery channel of its reply to inter-session messages.

extent analysis

TL;DR

The most likely fix involves modifying the sessions_send function to preserve the original session's channel context when sending replies between agents.

Guidance

  • Verify the session key and channel context are correctly passed between agents during the sessions_send calls to ensure the reply is delivered to the intended channel.
  • Investigate the sessions_send implementation to determine why the channel context is being overridden by the webchat channel.
  • Consider adding a parameter to the sessions_send function to explicitly specify the delivery channel, allowing the coordinator agent to control the reply's destination.
  • Review the logging configuration to ensure that all relevant information, including session keys and channel contexts, is being captured to facilitate debugging.

Example

No code snippet is provided due to the lack of implementation details in the issue description.

Notes

The provided information suggests a potential issue with the sessions_send function's handling of session context and channel information. However, without access to the implementation details, it is challenging to provide a definitive solution.

Recommendation

Apply a workaround by modifying the sessions_send function to preserve the original session's channel context, as this appears to be the root cause of the issue. This change would allow the coordinator agent to control the delivery channel of its replies.

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#logging issue#authentication issue#prompt issue#agent setup#task chaining

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openclaw - 💡(How to fix) Fix Inter-session message replies route to webchat instead of originating channel (Slack) [1 comments, 1 participants]