diff --git a/dat-was-lib/src/test/java/io/shinhanlife/dat/lib/util/ToolScaffolderTest.java b/dat-was-lib/src/test/java/io/shinhanlife/dat/lib/util/ToolScaffolderTest.java
index 853e2fccb..09c417f17 100644
--- a/dat-was-lib/src/test/java/io/shinhanlife/dat/lib/util/ToolScaffolderTest.java
+++ b/dat-was-lib/src/test/java/io/shinhanlife/dat/lib/util/ToolScaffolderTest.java
@@ -14,6 +14,17 @@ import org.junit.jupiter.api.io.TempDir;
 
 class ToolScaffolderTest {
 
+    @Test
+    void providesBusinessProposalGuideWithContractMasterSample() {
+        String guide = ToolScaffolder.businessProposalGuide();
+
+        assertTrue(guide.contains("업무 제안서 작성 가이드"), guide);
+        assertTrue(guide.contains("통합계약원부 조회"), guide);
+        assertTrue(guide.contains("조회 대상·식별 기준"), guide);
+        assertTrue(guide.contains("계약번호가 있으면 상세 원부를 조회"), guide);
+        assertTrue(guide.contains("해지·대출·보험금 상세는 별도 Tool"), guide);
+    }
+
     @Test
     void exposesGroupedUseCaseScaffoldApi() {
         assertDoesNotThrow(() -> ToolScaffolder.class.getMethod(