diff --git a/scripts/cli/upgrade b/scripts/cli/upgrade
new file mode 100755
index 0000000..4c15aea
--- /dev/null
+++ b/scripts/cli/upgrade
@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+#
+# Upgrade auto-commit-service
+#
+# Gracefully stops the running service and restarts with latest code.
+#
+# Usage:
+#   ./scripts/cli/upgrade
+#
+
+set -euo pipefail
+
+SERVICE_URL="${AUTO_COMMIT_URL:-http://localhost:8200}"
+SERVICE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+log_info() { echo -e "${GREEN}[INFO]${NC} $1"; }
+log_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
+log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
+
+# Step 1: Disable daemon (graceful stop)
+log_info "Disabling daemon..."
+if curl -s -X POST "${SERVICE_URL}/disable" > /dev/null 2>&1; then
+    log_info "Daemon disabled, waiting for current cycle to complete..."
+    sleep 2
+else
+    log_warn "Service not responding (may not be running)"
+fi
+
+# Step 2: Kill existing process
+log_info "Stopping existing process..."
+pkill -f "auto_commit_service" 2>/dev/null || true
+sleep 2
+
+# Step 3: Verify stopped
+if curl -s "${SERVICE_URL}/health" > /dev/null 2>&1; then
+    log_error "Service still running, force killing..."
+    pkill -9 -f "auto_commit_service" 2>/dev/null || true
+    sleep 2
+fi
+
+# Step 4: Start new process
+log_info "Starting service from ${SERVICE_DIR}..."
+cd "${SERVICE_DIR}"
+nohup python -m auto_commit_service > /tmp/auto-commit.log 2>&1 &
+
+# Step 5: Wait for startup
+log_info "Waiting for service to start..."
+for i in {1..10}; do
+    sleep 1
+    if curl -s "${SERVICE_URL}/health" > /dev/null 2>&1; then
+        break
+    fi
+    echo -n "."
+done
+echo ""
+
+# Step 6: Verify health
+if curl -s "${SERVICE_URL}/health" | grep -q '"status":"ok"'; then
+    log_info "Service upgraded successfully"
+    curl -s "${SERVICE_URL}/health" | python3 -m json.tool 2>/dev/null || cat
+else
+    log_error "Service failed to start"
+    log_error "Check logs: tail -f /tmp/auto-commit.log"
+    exit 1
+fi