From 49a2941e2b25358f63111efb8ef250dbdb89a5ce Mon Sep 17 00:00:00 2001
From: James Robey <james.robey@gmail.com>
Date: Sun, 1 Feb 2026 23:49:59 +0700
Subject: [PATCH] Sanitize prompt before starship init (#4269)

Add prompt sanitization to clear stale terminal line state after abnormal exits, preventing prompt artifacts.
---
 default/bash/init | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/default/bash/init b/default/bash/init
index e9228edb..dba369e0 100644
--- a/default/bash/init
+++ b/default/bash/init
@@ -3,6 +3,9 @@ if command -v mise &> /dev/null; then
 fi
 
 if command -v starship &> /dev/null; then
+  # clear stale readline state before rendering prompt (prevents artifacts in prompt after abnormal exits like SIGQUIT)
+  __sanitize_prompt() { printf '\r\033[K'; }
+  PROMPT_COMMAND="__sanitize_prompt${PROMPT_COMMAND:+;$PROMPT_COMMAND}"
   eval "$(starship init bash)"
 fi