diff --git a/packages/core/src/tools/read-file.ts b/packages/core/src/tools/read-file.ts
index 4bb3bd56..f92885ea 100644
--- a/packages/core/src/tools/read-file.ts
+++ b/packages/core/src/tools/read-file.ts
@@ -93,6 +93,13 @@ export class ReadFileTool extends BaseTool<ReadFileToolParams, ToolResult> {
   }
 
   getDescription(params: ReadFileToolParams): string {
+    if (
+      !params ||
+      typeof params.path !== 'string' ||
+      params.path.trim() === ''
+    ) {
+      return `Path unavailable`;
+    }
     const relativePath = makeRelative(params.path, this.rootDirectory);
     return shortenPath(relativePath);
   }