From 763afc5ca26600d8ee2962ea47f504fe9f7e4cb5 Mon Sep 17 00:00:00 2001
From: ABucket <tristanzhang32@gmail.com>
Date: Sat, 11 Oct 2025 12:45:25 +0800
Subject: [PATCH] fix: Quick Assistant fails to correctly inject variables in
 prompts (#10617)

---
 src/renderer/src/aiCore/prepareParams/parameterBuilder.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/renderer/src/aiCore/prepareParams/parameterBuilder.ts b/src/renderer/src/aiCore/prepareParams/parameterBuilder.ts
index 1ad04230b5..e4d7aff615 100644
--- a/src/renderer/src/aiCore/prepareParams/parameterBuilder.ts
+++ b/src/renderer/src/aiCore/prepareParams/parameterBuilder.ts
@@ -23,6 +23,7 @@ import { CherryWebSearchConfig } from '@renderer/store/websearch'
 import { type Assistant, type MCPTool, type Provider } from '@renderer/types'
 import type { StreamTextParams } from '@renderer/types/aiCoreTypes'
 import { mapRegexToPatterns } from '@renderer/utils/blacklistMatchPattern'
+import { replacePromptVariables } from '@renderer/utils/prompt'
 import type { ModelMessage, Tool } from 'ai'
 import { stepCountIs } from 'ai'
 
@@ -166,7 +167,7 @@ export async function buildStreamTextParams(
     params.tools = tools
   }
   if (assistant.prompt) {
-    params.system = assistant.prompt
+    params.system = await replacePromptVariables(assistant.prompt, model.name)
   }
   logger.debug('params', params)
   return {