Description

Peridically (30min) HEATBEAT related info floods the NemoClaw dashboard and during that period, there is no response for the prompt. Basically agent's ongoing task is broken to handle heartbeat. Please refer to the attachement.

Currently NemoClaw document doesn't mention how to disable Hearbeat. There is a OpenClaw command to set this config related to the HB disable but we can't perform this command inside the sandbox-

openclaw config set agents.defaults.heartbeat.every "0m"
Error: 'openclaw config set' cannot modify config inside the sandbox.
Changes inside the sandbox do not persist across rebuilds.
To change your configuration, exit the sandbox and run:
nemoclaw onboard --resume
This rebuilds the sandbox with your updated settings.

Reproduction Steps

NemoClaw installation is performed as per https://developer.nvidia.com/blog/build-a-secure-always-on-local-ai-agent-with-nvidia-nemoclaw-and-openclaw/.

Open the UI http://127.0.0.1:18789/#token=xxxx or inside the sandbox, "openclaw tui".

Periodic flooding of HB messages would be seen.

Environment

DGX spark.
uname -a
Linux cdm-spark 6.17.0-1014-nvidia #14-Ubuntu SMP PREEMPT_DYNAMIC Tue Mar 17 19:01:40 UTC 2026 aarch64 aarch64 aarch64 GNU/Linux

nemoclaw --version
nemoclaw v0.0.31

Debug Output

Logs

Checklist

• I confirmed this bug is reproducible
• I searched existing issues and this is not a duplicate