diff --git a/REFDB_FORMAT.txt b/REFDB_FORMAT.txt
index e2c8def..eddebda 100644
--- a/REFDB_FORMAT.txt
+++ b/REFDB_FORMAT.txt
@@ -3564,3 +3564,29 @@ documentation:
     - "AlmaLinux 8/9 compatibility details"
     - "Tool installation instructions"
 
+
+[DOCUMENTATION_PREFERENCES]
+updated: 2025-12-16
+
+DO NOT CREATE:
+  - /tmp/*COMPLETE*.txt (final completion reports)
+  - /tmp/*SUMMARY*.txt (session summaries)
+  - /tmp/*STATUS*.txt (status reports)
+  - Lengthy documentation files in /tmp
+
+User does NOT read lengthy documentation files.
+
+INSTEAD:
+  - Update REFDB_FORMAT.txt as you work (this file)
+  - Brief inline progress (1-2 sentences)
+  - Document changes in relevant sections above
+  - Keep user updates concise
+
+WORKFLOW:
+  1. Make changes
+  2. Test
+  3. Update REFDB_FORMAT.txt
+  4. Commit (no Claude signatures - see line 612)
+  5. Push
+  6. Brief update (1-2 sentences)
+
diff --git a/lib/system-detect.sh b/lib/system-detect.sh
index 30c8693..ab2b060 100755
--- a/lib/system-detect.sh
+++ b/lib/system-detect.sh
@@ -36,7 +36,8 @@ export SYS_FIREWALL_ACTIVE=""
 #############################################################################
 
 detect_control_panel() {
-    print_info "Detecting control panel..."
+    # Silent detection if already detected
+    [ -n "$SYS_DETECTION_COMPLETE" ] || print_info "Detecting control panel..."
 
     # cPanel
     if [ -f "/usr/local/cpanel/version" ]; then
@@ -95,7 +96,7 @@ detect_control_panel() {
 #############################################################################
 
 detect_os() {
-    print_info "Detecting operating system..."
+    [ -n "$SYS_DETECTION_COMPLETE" ] || print_info "Detecting operating system..."
 
     if [ -f /etc/os-release ]; then
         source /etc/os-release
@@ -133,7 +134,7 @@ detect_os() {
 #############################################################################
 
 detect_web_server() {
-    print_info "Detecting web server..."
+    [ -n "$SYS_DETECTION_COMPLETE" ] || print_info "Detecting web server..."
 
     # Apache
     if command_exists httpd; then
@@ -182,7 +183,7 @@ detect_web_server() {
 #############################################################################
 
 detect_database() {
-    print_info "Detecting database server..."
+    [ -n "$SYS_DETECTION_COMPLETE" ] || print_info "Detecting database server..."
 
     if command_exists mysql; then
         local version_output=$(mysql --version 2>/dev/null)
@@ -209,7 +210,7 @@ detect_database() {
 #############################################################################
 
 detect_php_versions() {
-    print_info "Detecting PHP versions..."
+    [ -n "$SYS_DETECTION_COMPLETE" ] || print_info "Detecting PHP versions..."
 
     SYS_PHP_VERSIONS=()
 
@@ -274,7 +275,7 @@ detect_cloudflare() {
 #############################################################################
 
 detect_firewall() {
-    print_info "Detecting firewall..."
+    [ -n "$SYS_DETECTION_COMPLETE" ] || print_info "Detecting firewall..."
 
     # CSF/LFD
     if [ -f "/etc/csf/csf.conf" ]; then