McpFunction에 MCP 표준 힌트 4개 추가

dap-tool-core/src/main/java/io/shinhanlife/dap/biz/mcp/tool/annotation/McpFunction.java

@@ -39,5 +39,10 @@ public @interface McpFunction {
     // 추가: HITL 승인 체계 지원 (실행 전 사용자 승인 필요 여부)
     boolean requiresApproval() default false;
 
+    boolean readOnlyHint() default false;
+    boolean destructiveHint() default false;
+    boolean idempotentHint() default false;
+    boolean openWorldHint() default false;
+
     // 추가: 툴 별 기본 Timeout 설정 (기본 300초 = 300000ms)
 }

dap-tool-core/src/main/java/io/shinhanlife/dap/biz/mcp/tool/dto/ToolMetadata.java

@@ -58,6 +58,17 @@ public class ToolMetadata {
     @Builder.Default
     private Boolean requiresApproval = false;
 
+    @Builder.Default
+    private Boolean readOnlyHint = false;
+
+    @Builder.Default
+    private Boolean destructiveHint = false;
+
+    @Builder.Default
+    private Boolean idempotentHint = false;
+
+    @Builder.Default
+    private Boolean openWorldHint = false;
 
 
-}
+}

dap-tool-core/src/main/java/io/shinhanlife/dap/biz/mcp/tool/service/ToolRegistryHeartbeatSender.java

@@ -107,6 +107,10 @@ public class ToolRegistryHeartbeatSender {
                     meta.setVisible(isVisible);
                     meta.setIsRegistered(isRegister);
                     meta.setRequiresApproval(functionAnnotation.requiresApproval());
+                    meta.setReadOnlyHint(functionAnnotation.readOnlyHint());
+                    meta.setDestructiveHint(functionAnnotation.destructiveHint());
+                    meta.setIdempotentHint(functionAnnotation.idempotentHint());
+                    meta.setOpenWorldHint(functionAnnotation.openWorldHint());
                     
                     Map<String, String> prompts = new HashMap<>();
                     String promptText = functionAnnotation.prompt();
@@ -174,4 +178,4 @@ public class ToolRegistryHeartbeatSender {
             log.error(" [HeartbeatSender] 툴 등록 실패: {}", ex.getMessage());
         }
     }
-}
+}