diff --git a/docs/tool-reference.md b/docs/tool-reference.md
index e13e94445..219b965c7 100644
--- a/docs/tool-reference.md
+++ b/docs/tool-reference.md
@@ -1,6 +1,6 @@
 <!-- AUTO GENERATED DO NOT EDIT - run 'npm run docs' to update-->
 
-# Chrome DevTools MCP Tool Reference (~6927 cl100k_base tokens)
+# Chrome DevTools MCP Tool Reference (~6940 cl100k_base tokens)
 
 - **[Input automation](#input-automation)** (9 tools)
   - [`click`](#click)
@@ -348,7 +348,7 @@ so returned values have to be JSON-serializable.
 
 ### `lighthouse_audit`
 
-**Description:** Get Lighthouse score and reports for accessibility, SEO and best practices.
+**Description:** Get Lighthouse score and reports for accessibility, SEO and best practices. This excludes performance. For performance audits, run [`performance_start_trace`](#performance_start_trace)
 
 **Parameters:**
 
diff --git a/src/tools/lighthouse.ts b/src/tools/lighthouse.ts
index 0c46c3ac5..3c831d815 100644
--- a/src/tools/lighthouse.ts
+++ b/src/tools/lighthouse.ts
@@ -17,11 +17,12 @@ import {
 } from '../third_party/index.js';
 
 import {ToolCategory} from './categories.js';
+import {startTrace} from './performance.js';
 import {definePageTool} from './ToolDefinition.js';
 
 export const lighthouseAudit = definePageTool({
   name: 'lighthouse_audit',
-  description: `Get Lighthouse score and reports for accessibility, SEO and best practices.`,
+  description: `Get Lighthouse score and reports for accessibility, SEO and best practices. This excludes performance. For performance audits, run ${startTrace.name}`,
   annotations: {
     category: ToolCategory.DEBUGGING,
     readOnlyHint: true,