openclaw - 💡(How to fix) Fix [Feature]: Config option to silently swallow empty-turn responses instead of delivering error text [1 participants]

deliver: silent # error | silent

• error (current default) — existing behavior, delivers a user-visible error text payload
• silent — log the failure at WARN level server-side (still visible via journalctl), deliver nothing to the channel For text-only channels the current behavior is fine — the user sees the error and can retry naturally. On TTS-enabled channels it's actively harmful.
• #70396 [Bug]: Incomplete turn false positive — messages sent but error still surfaced

TL;DR

Add a configuration option incomplete_turns with deliver set to silent to prevent delivering "Agent couldn't generate a response" text to channels.

Guidance

• Review the proposed configuration option incomplete_turns with deliver set to silent to understand its behavior.
• Consider the impact of empty-turn events on different types of channels, such as voice channels with TTS enabled and text-only channels.
• Evaluate the trade-offs between logging failures at WARN level server-side and delivering error text to the channel.
• Test the configuration option in a controlled environment to ensure it resolves the issue without introducing new problems.

Example

incomplete_turns:
  deliver: silent

This configuration option can be added to the existing configuration file to enable silent swallowing of empty-turn responses.

Notes

The solution may not apply to all versions of openclaw, as the issue is specific to version 2026.4.21. Additionally, the configuration option may have unintended consequences in certain environments, so thorough testing is recommended.

Recommendation

Apply the workaround by adding the incomplete_turns configuration option with deliver set to silent, as it provides a targeted solution to the issue without requiring an upgrade to a fixed version.