diff --git a/src/tools/GrepTool/prompt.ts b/src/tools/GrepTool/prompt.ts
index 52960d5..58dca08 100644
--- a/src/tools/GrepTool/prompt.ts
+++ b/src/tools/GrepTool/prompt.ts
@@ -16,3 +16,4 @@ export function getDescription(): string {
   - Multiline matching: By default patterns match within single lines only. For cross-line patterns like \`struct \\{[\\s\\S]*?field\`, use \`multiline: true\`
 `
 }
+