[F] Fix auto tmux compatibility with ssh agent

config-sync/.config/tmux/tmux.conf

@@ -4,6 +4,7 @@ set-option -g history-limit 10000
 # set -g default-shell zsh
 set -g base-index 1
 set -g renumber-windows on
+set -g update-environment "DISPLAY SSH_ASKPASS SSH_AGENT_PID SSH_CONNECTION WINDOWID XAUTHORITY"
 
 # Status bar background style
 set -g status-style 'bg=#ffffff,fg=#333333'

config-sync/ssh-rc

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+# Keep a stable SSH agent socket path for tmux panes across reconnects.
+if [ -S "$SSH_AUTH_SOCK" ]; then
+    ln -sf "$SSH_AUTH_SOCK" "$HOME/.ssh/current_agent.sock"
+fi