From 1cce9ea5499f211cc195037175edbca4527f058d Mon Sep 17 00:00:00 2001
From: Heejae Kim <h16rkim@gmail.com>
Date: Thu, 9 Oct 2025 11:28:27 +0900
Subject: [PATCH] fix: use `truncate_safe` for safer string truncation in
 `chat/checkpoint.rs`.

---
 crates/chat-cli/src/cli/chat/checkpoint.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crates/chat-cli/src/cli/chat/checkpoint.rs b/crates/chat-cli/src/cli/chat/checkpoint.rs
index bbe36be08c..cfe76635ca 100644
--- a/crates/chat-cli/src/cli/chat/checkpoint.rs
+++ b/crates/chat-cli/src/cli/chat/checkpoint.rs
@@ -28,6 +28,7 @@ use serde::{
 use tracing::debug;
 
 use crate::cli::ConversationState;
+use super::util::truncate_safe;
 use crate::cli::chat::conversation::HistoryEntry;
 use crate::os::Os;
 
@@ -370,7 +371,7 @@ pub fn truncate_message(s: &str, max_len: usize) -> String {
         return s.to_string();
     }
 
-    let truncated = &s[..max_len];
+    let truncated = truncate_safe(s, max_len);
     if let Some(pos) = truncated.rfind(' ') {
         format!("{}...", &truncated[..pos])
     } else {