From dc8c018e28b3e97b043a267cd6e2a5ac8b018331 Mon Sep 17 00:00:00 2001
From: zhsama <torvalds@linux.do>
Date: Tue, 20 Jan 2026 16:48:05 +0800
Subject: [PATCH] refactor: Refactor agent context insertion to use regex

---
 .../tool/components/mixed-variable-text-input/index.tsx  | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/web/app/components/workflow/nodes/tool/components/mixed-variable-text-input/index.tsx b/web/app/components/workflow/nodes/tool/components/mixed-variable-text-input/index.tsx
index cebe4dd18c..a0dbcd1070 100644
--- a/web/app/components/workflow/nodes/tool/components/mixed-variable-text-input/index.tsx
+++ b/web/app/components/workflow/nodes/tool/components/mixed-variable-text-input/index.tsx
@@ -500,13 +500,8 @@ const MixedVariableTextInput = ({
     if (!onChange)
       return
 
-    const valueWithoutTrigger = (() => {
-      const lineStart = value.lastIndexOf('\n') + 1
-      const triggerIndex = value.lastIndexOf('@')
-      if (triggerIndex < lineStart)
-        return value
-      return value.slice(0, triggerIndex)
-    })()
+    // compute words after the latest '@' and delete them
+    const valueWithoutTrigger = value.replace(/@[^@\n]*$/, '')
     const newValue = `{{@${agent.id}.context@}}${valueWithoutTrigger}`
 
     if (toolNodeId && paramKey) {