diff --git a/git-hangman-lab/scripts/create-repo b/git-hangman-lab/scripts/create-repo
index a0f9bbd..e9595cb 100755
--- a/git-hangman-lab/scripts/create-repo
+++ b/git-hangman-lab/scripts/create-repo
@@ -4,8 +4,10 @@ set -euo pipefail
 # Get the directory where this script is located
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 
-# Default workspace (can be overridden by AGENT_WORKSPACE env var)
-AGENT_WORKSPACE="${AGENT_WORKSPACE:-/root/.openclaw/workspace/workspace-mentor}"
+if [[ -z "${AGENT_WORKSPACE:-}" ]]; then
+  echo "Error: AGENT_WORKSPACE environment variable is not set"
+  exit 1
+fi
 
 usage() {
   echo "Usage: $0 <repo-name>"