diff --git a/skills/kugetsu/scripts/release-slot.sh b/skills/kugetsu/scripts/release-slot.sh
new file mode 100755
index 0000000..f112785
--- /dev/null
+++ b/skills/kugetsu/scripts/release-slot.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+KUGETSU_DIR="${KUGETSU_DIR:-$HOME/.kugetsu}"
+AGENT_COUNT_FILE="$KUGETSU_DIR/.agent_count"
+AGENT_LOCK_FILE="$KUGETSU_DIR/.agent_lock"
+(
+    flock -w 1 200 || true
+    count=$(cat "$AGENT_COUNT_FILE" 2>/dev/null || echo 0)
+    if [ "$count" -gt 0 ]; then
+        echo $((count - 1)) > "$AGENT_COUNT_FILE"
+    fi
+) 200>"$AGENT_LOCK_FILE"