diff --git a/.tmux.conf b/.tmux.conf
index 9c49e90..5766e05 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -276,20 +276,20 @@ set-option -g status-right "#(~/.config/tmux/tmux-status/right.sh)"
 
 
 # session index switching
-bind -n C-1 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 1"
-bind -n C-2 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 2"
-bind -n C-3 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 3"
-bind -n C-4 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 4"
-bind -n C-5 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 5"
-bind -n C-6 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 6"
-bind -n C-7 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 7"
-bind -n C-8 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 8"
-bind -n C-9 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 9"
-bind -n F1 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 1"
-bind -n F2 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 2"
-bind -n F3 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 3"
-bind -n F4 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 4"
-bind -n F5 run-shell "~/.config/tmux/scripts/switch_session_by_index.sh 5"
+bind -n C-1 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 1"
+bind -n C-2 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 2"
+bind -n C-3 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 3"
+bind -n C-4 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 4"
+bind -n C-5 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 5"
+bind -n C-6 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 6"
+bind -n C-7 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 7"
+bind -n C-8 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 8"
+bind -n C-9 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 9"
+bind -n F1 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 1"
+bind -n F2 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 2"
+bind -n F3 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 3"
+bind -n F4 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 4"
+bind -n F5 run-shell -b "~/.config/tmux/scripts/switch_session_by_index.sh 5"
 # True color support
 set -g default-terminal "tmux-256color"
 set -as terminal-features ",*256col*:RGB"
diff --git a/tmux/scripts/session_manager.py b/tmux/scripts/session_manager.py
index 4357810..9a4546d 100755
--- a/tmux/scripts/session_manager.py
+++ b/tmux/scripts/session_manager.py
@@ -86,6 +86,7 @@ def command_switch(index_str: str) -> None:
     if index > len(sessions):
         return
     run_tmux(["switch-client", "-t", sessions[index - 1]["id"]], check=False)
+    run_tmux(["refresh-client", "-S"], check=False)
 
 
 def command_rename(label: str) -> None:
diff --git a/tmux/scripts/switch_session_by_index.sh b/tmux/scripts/switch_session_by_index.sh
index e72b9de..093aa6b 100755
--- a/tmux/scripts/switch_session_by_index.sh
+++ b/tmux/scripts/switch_session_by_index.sh
@@ -6,4 +6,10 @@ if [[ -z "$index" || ! "$index" =~ ^[0-9]+$ ]]; then
   exit 0
 fi
 
-python3 "$HOME/.config/tmux/scripts/session_manager.py" switch "$index"
+# Get session matching index prefix (e.g., "1-" for index 1)
+target=$(tmux list-sessions -F '#{session_id} #{session_name}' 2>/dev/null | awk -v idx="$index" '$2 ~ "^"idx"-" {print $1; exit}')
+
+if [[ -n "$target" ]]; then
+  tmux switch-client -t "$target"
+  tmux refresh-client -S
+fi
diff --git a/tmux/tmux-status/left.sh b/tmux/tmux-status/left.sh
index cb59bd3..2b272bd 100755
--- a/tmux/tmux-status/left.sh
+++ b/tmux/tmux-status/left.sh
@@ -4,21 +4,15 @@ set -euo pipefail
 current_session_id="${1:-}"
 current_session_name="${2:-}"
 
-detect_current_session_id=$(tmux display-message -p '#{session_id}')
-detect_current_session_name=$(tmux display-message -p '#{session_name}')
+# Single tmux call to get all needed info
+IFS=$'\t' read -r detect_session_id detect_session_name term_width status_bg < <(
+  tmux display-message -p '#{session_id}	#{session_name}	#{client_width}	#{status-bg}' 2>/dev/null || echo ""
+)
 
-if [[ -z "$current_session_id" ]]; then
-  current_session_id="$detect_current_session_id"
-fi
-
-if [[ -z "$current_session_name" ]]; then
-  current_session_name="$detect_current_session_name"
-fi
-
-status_bg=$(tmux show -gqv status-bg)
-if [[ -z "$status_bg" || "$status_bg" == "default" ]]; then
-  status_bg=black
-fi
+[[ -z "$current_session_id" ]] && current_session_id="$detect_session_id"
+[[ -z "$current_session_name" ]] && current_session_name="$detect_session_name"
+[[ -z "$status_bg" || "$status_bg" == "default" ]] && status_bg=black
+term_width="${term_width:-100}"
 
 inactive_bg="#373b41"
 inactive_fg="#c5c8c6"
@@ -28,22 +22,9 @@ separator=""
 left_cap="█"
 max_width=18
 
-# width-based label policy: when narrow (<80 cols by default),
-# show title for active session and only the numeric index for inactive ones.
 left_narrow_width=${TMUX_LEFT_NARROW_WIDTH:-80}
-term_width=$(tmux display-message -p '#{client_width}' 2>/dev/null || true)
-if [[ -z "${term_width:-}" || "$term_width" == "0" ]]; then
-  term_width=$(tmux display-message -p '#{window_width}' 2>/dev/null || true)
-fi
-if [[ -z "${term_width:-}" || "$term_width" == "0" ]]; then
-  term_width=${COLUMNS:-}
-fi
 is_narrow=0
-if [[ -n "${term_width:-}" && "$term_width" =~ ^[0-9]+$ ]]; then
-  if (( term_width < left_narrow_width )); then
-    is_narrow=1
-  fi
-fi
+[[ "$term_width" =~ ^[0-9]+$ ]] && (( term_width < left_narrow_width )) && is_narrow=1
 
 normalize_session_id() {
   local value="$1"
@@ -69,124 +50,7 @@ extract_index() {
   fi
 }
 
-tracker_pending_sessions=""
-tracker_running_sessions=""
-TRACKER_CACHE_DIR="$HOME/.config/tmux/cache"
-TRACKER_CACHE_FILE="$TRACKER_CACHE_DIR/tracker_state_lines"
-TRACKER_CACHE_TTL=1
 
-file_mtime() {
-  local path="$1"
-  [[ ! -e "$path" ]] && return 1
-
-  local mtime
-  mtime=$(stat -f %m "$path" 2>/dev/null || true)
-  if [[ -n "$mtime" ]]; then
-    printf '%s\n' "$mtime"
-    return 0
-  fi
-
-  mtime=$(stat -c %Y "$path" 2>/dev/null || true)
-  if [[ -n "$mtime" ]]; then
-    printf '%s\n' "$mtime"
-    return 0
-  fi
-
-  return 1
-}
-
-write_tracker_cache() {
-  mkdir -p "$TRACKER_CACHE_DIR"
-  local tmp_file="$TRACKER_CACHE_FILE.$$"
-  printf '%s\n' "$1" > "$tmp_file"
-  mv "$tmp_file" "$TRACKER_CACHE_FILE"
-}
-
-reset_tracker_state() {
-  tracker_pending_sessions=""
-  tracker_running_sessions=""
-}
-
-load_tracker_info() {
-  reset_tracker_state
-
-  if ! command -v jq >/dev/null 2>&1; then
-    return
-  fi
-
-  local tracker_lines=""
-  local now
-  now=$(date +%s 2>/dev/null || true)
-
-  if [[ -f "$TRACKER_CACHE_FILE" && -n "$now" ]]; then
-    local cache_mtime
-    cache_mtime=$(file_mtime "$TRACKER_CACHE_FILE" 2>/dev/null || true)
-    if [[ -n "$cache_mtime" ]]; then
-      local age=$(( now - cache_mtime ))
-      if (( age <= TRACKER_CACHE_TTL )); then
-        tracker_lines=$(cat "$TRACKER_CACHE_FILE" 2>/dev/null || true)
-      fi
-    fi
-  fi
-
-  if [[ -z "$tracker_lines" ]]; then
-    local tracker_bin="$HOME/.config/agent-tracker/bin/tracker-client"
-    if [[ ! -x "$tracker_bin" ]]; then
-      rm -f "$TRACKER_CACHE_FILE" 2>/dev/null || true
-      return
-    fi
-    local tracker_state
-    tracker_state=$("$tracker_bin" state 2>/dev/null || true)
-    if [[ -z "$tracker_state" ]]; then
-      rm -f "$TRACKER_CACHE_FILE" 2>/dev/null || true
-      return
-    fi
-
-    tracker_lines=$(printf '%s\n' "$tracker_state" | jq -r 'select(.kind == "state") | .tasks[] | "\(.session_id)|\(.status)|\(.acknowledged)"' 2>/dev/null || true)
-    if [[ -n "$tracker_lines" ]]; then
-      write_tracker_cache "$tracker_lines"
-    else
-      rm -f "$TRACKER_CACHE_FILE" 2>/dev/null || true
-      return
-    fi
-  fi
-
-  while IFS='|' read -r session_id status acknowledged; do
-    [[ -z "$session_id" ]] && continue
-    case "$status" in
-      in_progress)
-        tracker_running_sessions+="$session_id"$'\n'
-        ;;
-      completed)
-        if [[ "$acknowledged" == "false" ]]; then
-          tracker_pending_sessions+="$session_id"$'\n'
-        fi
-        ;;
-    esac
-  done <<< "$tracker_lines"
-}
-
-value_in_list() {
-  local needle="$1"
-  local list="$2"
-  if [[ -z "$needle" || -z "$list" ]]; then
-    return 1
-  fi
-  while IFS= read -r line; do
-    [[ "$line" == "$needle" ]] && return 0
-  done <<< "$list"
-  return 1
-}
-
-session_has_pending() {
-  value_in_list "$1" "$tracker_pending_sessions"
-}
-
-session_has_running() {
-  value_in_list "$1" "$tracker_running_sessions"
-}
-
-load_tracker_info
 
 sessions=$(tmux list-sessions -F '#{session_id}::#{session_name}' 2>/dev/null || true)
 if [[ -z "$sessions" ]]; then
@@ -232,19 +96,12 @@ while IFS= read -r entry; do
     label="${label:0:max_width-1}…"
   fi
 
-  indicator=""
-  if session_has_pending "$session_id"; then
-    indicator=" #[fg=#a6e3a1,bg=${segment_bg}]●#[fg=${segment_fg},bg=${segment_bg}]"
-  elif session_has_running "$session_id"; then
-    indicator=" #[fg=#f9e2af,bg=${segment_bg}]●#[fg=${segment_fg},bg=${segment_bg}]"
-  fi
-
   if [[ -z "$prev_bg" ]]; then
     rendered+="#[fg=${segment_bg},bg=${status_bg}]${left_cap}"
   else
     rendered+="#[fg=${prev_bg},bg=${segment_bg}]${separator}"
   fi
-  rendered+="#[fg=${segment_fg},bg=${segment_bg}] ${label}${indicator} "
+  rendered+="#[fg=${segment_fg},bg=${segment_bg}] ${label} "
   prev_bg="$segment_bg"
 done <<< "$sessions"