openclaw - 💡(How to fix) Fix sessions_spawn tool not available - multi-agent dispatch blocked [1 comments, 2 participants]

TL;DR

The sessions_spawn tool is not available in the agent tool list, so using the exec command with file passing is a potential workaround.

Guidance

• Verify that the OpenClaw version is indeed 2026.4.22 or later, as the issue might be version-specific.
• Check the SOUL.md documentation for any hints on why sessions_spawn is documented but not available.
• Test the suggested workaround using exec and file passing to dispatch sub-agents, and evaluate its reliability compared to the native sessions_spawn tool.
• Review issue #72638 for potential insights into the broken sessions_spawn completion event push.

Notes

The root cause of the missing sessions_spawn tool is unclear, and it's uncertain whether this is a documentation error or a genuine missing feature.

Recommendation

Apply the workaround using exec and file passing, as it seems to be the only available solution until the sessions_spawn tool is made available.