Summary

Sandbox container names are derived from WhatsApp chat IDs which contain @ (e.g. 245234076266625@lid). Docker container names only allow [a-zA-Z0-9][a-zA-Z0-9_.-], causing sandbox creation to fail.

Error

docker: Error response from daemon: Invalid container name
(goclaw-sbx-agent-chloe-whatsapp-direct-245234076266625@lid),
only [a-zA-Z0-9][a-zA-Z0-9_.-] are allowed

Impact

All exec tool calls fail with:

credentialed exec requires sandbox but sandbox is unavailable

This affects all WhatsApp channels since their chat IDs always contain @lid.

Expected Fix

Sanitize the chat ID before using it as part of the Docker container name. Replace invalid characters (@, :, etc.) with valid alternatives (e.g. - or _).

Environment

• GoClaw: Docker (latest)
• Channel: WhatsApp (whatsmeow)
• Chat ID format: 245234076266625@lid or 245234076266625:52@lid