Add <prefix>A binding to display-popup with agent.sh

Enables the use of AI agents (claude, gemini) in a persistent
display-popup, backed by a tmux session, via the <prefix>A binding.

agent.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+set -e
+
+# Use the current directory (set via display-popup -d)
+dir="${PWD:-$HOME}"
+# Use the directory basename as window name
+window_name=$dir
+
+# Create the agent session if it doesn't exist
+if ! tmux has-session -t agent; then
+  tmux new-session -ds agent -c "$dir" -n "$window_name" claude
+  tmux split-window -h -t agent:0 gemini
+  # Store the directory in a window option for later matching
+  tmux set-window-option -t agent @agent_dir "$dir"
+  tmux set-option -t agent status off
+  tmux attach-session -t agent
+  exit 0
+fi
+
+# Search for an existing window with matching directory
+target_window=""
+for window_id in $(tmux list-windows -t agent -F '#{window_id}'); do
+  window_dir=$(tmux show-window-option -t "$window_id" -v @agent_dir 2>/dev/null || true)
+  if [ "$window_dir" = "$dir" ]; then
+    target_window="$window_id"
+    break
+  fi
+done
+
+if [ -n "$target_window" ]; then
+  # Select the existing window
+  tmux select-window -t "$target_window"
+else
+  # Create a new window with agents
+  tmux new-window -t agent -c "$dir" -n "$window_name" claude
+  tmux split-window -h agent gemini
+  # Create a split with gemini
+  tmux split -h -t agent -c "$dir" gemini
+  # Store the directory in a window option for later matching
+  tmux set-window-option -t agent @agent_dir "$dir"
+fi
+
+# Attach to the session
+tmux attach-session -t agent

hooks/session-create.sh

@@ -4,6 +4,6 @@ session_name=$(tmux display-message -p '#S')
 session_layout=~/.local/share/tmux/layouts/session-$session_name
 if [ -f $session_layout ]; then
   $session_layout
-else
+elif [ "$session_name" != "agent" ]; then
   tmux rename-window home
 fi

tmux.conf

@@ -66,15 +66,19 @@ bind a run-shell ~/.local/share/tmux/layouts/window-auto
 if -b '[ "`uname`" = "Darwin" ]' \
   'set -g default-command "reattach-to-user-namespace -l $SHELL"'
 
-if -b '~/.config/tmux/check-version.sh ">" 3.2' {
-  # Open a popup with running the default shell
-  bind T display-popup -S fg=#54546D -b rounded -d '#{pane_current_path}' -E $SHELL
-  # Open a popup with session creator/switcher
-  bind S display-popup -B -w 60 -h 10 -E '~/.config/tmux/session.sh'
-  # Open a popup with project selector
-  bind P display-popup -B -w 60 -h 10 -E '~/.config/tmux/project.sh'
-  # Open a popup to pick an interpreter then launch it
+if -b '~/.config/tmux/check-version.sh ">=" 3.2 && ~/.config/tmux/check-version.sh "<" 3.3' {
+  bind A display-popup -d '#{pane_current_path}' -w 75% -h 90% -E ~/.config/tmux/agent.sh
+  bind I display-popup -d '#{pane_current_path}' -E '$SHELL -i ~/.config/tmux/interpreter.sh'
+  bind P display-popup -w 60 -h 10 -E '~/.config/tmux/project.sh'
+  bind S display-popup -w 60 -h 10 -E '~/.config/tmux/session.sh'
+  bind T display-popup -d '#{pane_current_path}' -E $SHELL
+}
+if -b '~/.config/tmux/check-version.sh ">=" 3.3' {
+  bind A display-popup -S fg=#54546D -b rounded -d '#{pane_current_path}' -w 75% -h 90% -E ~/.config/tmux/agent.sh
   bind I display-popup -S fg=#54546D -b rounded -d '#{pane_current_path}' -E '$SHELL -i ~/.config/tmux/interpreter.sh'
+  bind P display-popup -B -w 60 -h 10 -E '~/.config/tmux/project.sh'
+  bind S display-popup -B -w 60 -h 10 -E '~/.config/tmux/session.sh'
+  bind T display-popup -S fg=#54546D -d '#{pane_current_path}' -E $SHELL
 }
 
 # Restore old next/previous window bindings