diff --git a/install/agent-install.sh b/install/agent-install.sh
index db7fbf4..19448bc 100644
--- a/install/agent-install.sh
+++ b/install/agent-install.sh
@@ -11,7 +11,7 @@ if [ -z "$SERVER_URL" ] || [ -z "$AGENT_KEY" ]; then
     exit 1
 fi
 
-# Detect if we can run as root (try non-interactive sudo)
+# Detect if we can run as root
 CAN_ROOT=false
 if [ "$(id -u)" -eq 0 ]; then
     CAN_ROOT=true
@@ -20,9 +20,7 @@ elif command -v sudo >/dev/null 2>&1 && sudo -n true 2>/dev/null; then
 fi
 
 if [ "$CAN_ROOT" = true ]; then
-    # ── Root/system mode ──
     if [ "$(id -u)" -ne 0 ]; then
-        # Re-exec with script PTY if available (handles requiretty)
         if command -v script >/dev/null 2>&1; then
             exec script -q -c "sudo bash '$0' '$1' '$2' '$3'" /dev/null
         fi
@@ -30,46 +28,26 @@ if [ "$CAN_ROOT" = true ]; then
     fi
 
     AGENT_BIN="/usr/local/bin/servermanager-agent"
-    CONFIG_DIR="/etc/servermanager"
-    CONFIG_FILE="$CONFIG_DIR/agent.conf"
     SERVICE_FILE="/etc/systemd/system/servermanager-agent.service"
     USE_SYSTEMD=true
     INSTALL_MODE="system"
 else
-    # ── User/no-root mode ──
     AGENT_BIN="$HOME/.local/bin/servermanager-agent"
-    CONFIG_DIR="$HOME/.config/servermanager"
-    CONFIG_FILE="$CONFIG_DIR/agent.conf"
     USE_SYSTEMD=false
     INSTALL_MODE="user"
 fi
 
-echo "[1/4] Creating directories..."
+echo "[1/3] Creating directory..."
 mkdir -p "$(dirname "$AGENT_BIN")"
-mkdir -p "$CONFIG_DIR"
 
-echo "[2/4] Installing agent binary..."
+echo "[2/3] Installing agent binary..."
 cat > "$AGENT_BIN" << 'AGENTSCRIPT'
 #!/bin/bash
 set -e
 
-# Config search order: 1st arg > /etc/servermanager/agent.conf > $HOME/.config/servermanager/agent.conf
-if [ -n "$1" ] && [ -f "$1" ]; then
-    CONFIG_FILE="$1"
-elif [ -f "/etc/servermanager/agent.conf" ]; then
-    CONFIG_FILE="/etc/servermanager/agent.conf"
-else
-    CONFIG_FILE="$HOME/.config/servermanager/agent.conf"
-fi
-
-load_config() {
-    if [ -f "$CONFIG_FILE" ]; then
-        source "$CONFIG_FILE"
-    fi
-    SERVER_URL="${SERVER_URL:-}"
-    AGENT_KEY="${AGENT_KEY:-}"
-    INTERVAL="${INTERVAL:-60}"
-}
+SERVER_URL="@SERVER_URL@"
+AGENT_KEY="@AGENT_KEY@"
+INTERVAL=@INTERVAL@
 
 collect_metrics() {
     CPU=$(top -bn1 2>/dev/null | grep 'Cpu(s)' | awk '{print $2}' | cut -d'%' -f1)
@@ -103,24 +81,22 @@ EOF
         -o /dev/null -w "%{http_code}" 2>/dev/null || echo "000"
 }
 
-run() {
-    load_config
-    if [ -z "$SERVER_URL" ] || [ -z "$AGENT_KEY" ]; then
-        echo "ERROR: SERVER_URL and AGENT_KEY not configured"
-        exit 1
-    fi
-    echo "ServerManager Agent started (interval: ${INTERVAL}s)"
-    sleep 2
-    while true; do
-        collect_metrics
-        http_code=$(push_metrics)
-        echo "[$(date)] HTTP $http_code"
-        sleep "$INTERVAL"
-    done
-}
-
-run
+echo "ServerManager Agent started (interval: ${INTERVAL}s)"
+sleep 2
+while true; do
+    collect_metrics
+    http_code=$(push_metrics)
+    echo "[$(date)] HTTP $http_code"
+    sleep "$INTERVAL"
+done
 AGENTSCRIPT
+
+sed -i \
+    "s|@SERVER_URL@|$SERVER_URL|g" \
+    -e "s|@AGENT_KEY@|$AGENT_KEY|g" \
+    -e "s|@INTERVAL@|$INTERVAL|g" \
+    "$AGENT_BIN"
+
 chmod +x "$AGENT_BIN"
 
 if [ ! -f "$AGENT_BIN" ]; then
@@ -129,15 +105,7 @@ if [ ! -f "$AGENT_BIN" ]; then
 fi
 echo "  Binary: $AGENT_BIN ($(wc -c < "$AGENT_BIN") bytes)"
 
-echo "[3/4] Writing config..."
-cat > "$CONFIG_FILE" << EOF
-SERVER_URL="$SERVER_URL"
-AGENT_KEY="$AGENT_KEY"
-INTERVAL=$INTERVAL
-EOF
-chmod 600 "$CONFIG_FILE"
-
-echo "[4/4] Enabling auto-start..."
+echo "[3/3] Enabling auto-start..."
 
 if [ "$USE_SYSTEMD" = true ]; then
     echo "  Using systemd service..."
@@ -148,7 +116,7 @@ After=network-online.target
 Wants=network-online.target
 [Service]
 Type=simple
-ExecStart=/usr/local/bin/servermanager-agent /etc/servermanager/agent.conf
+ExecStart=/usr/local/bin/servermanager-agent
 Restart=always
 RestartSec=10
 [Install]
@@ -159,9 +127,11 @@ UNIT
     systemctl restart servermanager-agent 2>/dev/null || true
 else
     echo "  Using crontab (@reboot)..."
-    CRON_JOB="@reboot $AGENT_BIN $CONFIG_FILE > $CONFIG_DIR/agent.log 2>&1"
-    (crontab -l 2>/dev/null | grep -v '_sm_agent\|servermanager-agent'; echo "$CRON_JOB") | crontab - 2>/dev/null || {
-        echo "WARNING: Could not install crontab. Agent must be started manually."
+    LOG_DIR="$HOME/.local/share/servermanager"
+    mkdir -p "$LOG_DIR"
+    CRON_JOB="@reboot $AGENT_BIN > $LOG_DIR/agent.log 2>&1"
+    (crontab -l 2>/dev/null | grep -v 'servermanager-agent'; echo "$CRON_JOB") | crontab - 2>/dev/null || {
+        echo "WARNING: Could not install crontab."
         echo "  Run: $AGENT_BIN &"
     }
 fi
@@ -170,4 +140,4 @@ echo ""
 echo "ServerManager Agent installed successfully!"
 echo "  Mode: $INSTALL_MODE"
 echo "  Binary: $AGENT_BIN"
-echo "  Config: $CONFIG_FILE"
+echo "  Config: embedded in binary (no external config file)"