From c4dcac1d953955568ab6d4084dd2432e5fea511c Mon Sep 17 00:00:00 2001
From: syui <syui@syui.ai>
Date: Wed, 25 Mar 2026 15:20:31 +0900
Subject: [PATCH] fix: prevent underflow in tui previous() when agents list is
 empty

Co-Authored-By: ai.syui.ai
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 src/tui.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tui.rs b/src/tui.rs
index d0fb678..1acc74f 100644
--- a/src/tui.rs
+++ b/src/tui.rs
@@ -414,7 +414,7 @@ impl App {
 
     fn previous(&mut self) {
         if !self.agents.is_empty() {
-            self.selected = self.selected.checked_sub(1).unwrap_or(self.agents.len() - 1);
+            self.selected = self.selected.checked_sub(1).unwrap_or(self.agents.len().saturating_sub(1));
         }
     }