diff --git a/Agent Builder MCP Integration Blueprint.pptx b/Agent Builder MCP Integration Blueprint.pptx
new file mode 100644
index 0000000..8e0fd2f
Binary files /dev/null and b/Agent Builder MCP Integration Blueprint.pptx differ
diff --git a/McpBridge.java b/McpBridge.java
index 3ca4f32..627e5ec 100644
--- a/McpBridge.java
+++ b/McpBridge.java
@@ -96,13 +96,26 @@ public class McpBridge {
         int idx = line.indexOf("\"id\":");
         if (idx == -1) return "null";
         int start = idx + 5;
-        while (start < line.length() && (line.charAt(start) == ' ' || line.charAt(start) == '\"')) {
+        while (start < line.length() && line.charAt(start) == ' ') {
             start++;
         }
+        if (start >= line.length()) return "null";
+
         int end = start;
-        while (end < line.length() && Character.isDigit(line.charAt(end))) {
-            end++;
+        if (line.charAt(start) == '\"') {
+            end = start + 1;
+            while (end < line.length() && line.charAt(end) != '\"') {
+                end++;
+            }
+            if (end < line.length()) {
+                end++; // include closing quote
+            }
+        } else {
+            while (end < line.length() && Character.isDigit(line.charAt(end))) {
+                end++;
+            }
         }
+
         if (start == end) return "null";
         return line.substring(start, end);
     }
diff --git a/axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/presentation/BusinessToolController.java b/axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/presentation/BusinessToolController.java
index ec7d67d..b496ba9 100644
--- a/axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/presentation/BusinessToolController.java
+++ b/axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/presentation/BusinessToolController.java
@@ -123,9 +123,16 @@ public class BusinessToolController {
                 }
             }
             log.error("[Tool] 실행할 함수(Method)를 찾을 수 없습니다: {}. 현재 스캔된 툴 메서드 목록: {}", functionName, availableFunctions);
+            Map<String, Object> errorDetails = new HashMap<>();
+            errorDetails.put("status", "404");
+            Map<String, Object> errorBody = new HashMap<>();
+            errorBody.put("code", "TOOL_NOT_FOUND");
+            errorBody.put("message", "실행할 함수를 찾을 수 없습니다: " + functionName);
+            errorBody.put("details", errorDetails);
+
             Map<String, Object> error = new HashMap<>();
             error.put("jsonrpc", "2.0");
-            error.put("error", Map.of("code", -32601, "message", "실행할 함수를 찾을 수 없습니다: " + functionName));
+            error.put("error", errorBody);
             error.put("id", payload != null ? payload.get("id") : null);
             return error;
         }
@@ -145,13 +152,20 @@ public class BusinessToolController {
                     Set<ValidationMessage> errors = schema.validate(objectMapper.valueToTree(arguments));
                     if (!errors.isEmpty()) {
                         log.error("[Tool] 파라미터 유효성 검증 실패: {}", errors);
-                        Map<String, Object> error = new HashMap<>();
-                        error.put("jsonrpc", "2.0");
                         List<String> errorMessages = new ArrayList<>();
                         for (ValidationMessage vm : errors) {
                             errorMessages.add(vm.getMessage());
                         }
-                        error.put("error", Map.of("code", -32602, "message", "파라미터 유효성 검증 실패: " + String.join(", ", errorMessages)));
+                        Map<String, Object> errorDetails = new HashMap<>();
+                        errorDetails.put("status", "422");
+                        Map<String, Object> errorBody = new HashMap<>();
+                        errorBody.put("code", "INVALID_PARAM");
+                        errorBody.put("message", "파라미터 유효성 검증 실패: " + String.join(", ", errorMessages));
+                        errorBody.put("details", errorDetails);
+
+                        Map<String, Object> error = new HashMap<>();
+                        error.put("jsonrpc", "2.0");
+                        error.put("error", errorBody);
                         error.put("id", payload != null ? payload.get("id") : null);
                         return error;
                     }
@@ -177,15 +191,23 @@ public class BusinessToolController {
             // 4. 메서드 실행
             Object methodResult = targetMethod.invoke(targetBean, invokeArgument);
             
-            // 5. 결과 조립 (JSON-RPC 응답)
-            Map<String, Object> resultPayload = new HashMap<>();
+            // 5. 결과 조립 (JSON-RPC 응답 - Agent Builder 규격 적용)
+            Map<String, Object> innerResult = new HashMap<>();
             if (methodResult instanceof Map) {
-                resultPayload = (Map<String, Object>) methodResult;
-            } else {
-                resultPayload.put("status", "SUCCESS");
-                resultPayload.put("legacy_response", methodResult);
+                innerResult.putAll((Map<String, Object>) methodResult);
             }
-            resultPayload.put("ai_insight", "다이렉트 메서드(" + targetMethod.getName() + ") 통신이 성공적으로 수행되었습니다.");
+            if (!innerResult.containsKey("contracts")) {
+                List<Object> contracts = new ArrayList<>();
+                if (methodResult != null) {
+                    contracts.add(methodResult);
+                }
+                innerResult.put("contracts", contracts);
+            }
+
+            Map<String, Object> resultPayload = new HashMap<>();
+            resultPayload.put("status", "ok");
+            resultPayload.put("result", innerResult);
+            resultPayload.put("error code", null);
 
             Map<String, Object> rpcResponse = new java.util.LinkedHashMap<>(); // 순서 보장을 위해 LinkedHashMap 사용
             rpcResponse.put("jsonrpc", "2.0");
@@ -201,9 +223,16 @@ public class BusinessToolController {
 
         } catch (Exception e) {
             log.error("[Tool] 리플렉션 실행 중 예외 발생: {}", e.getMessage());
+            Map<String, Object> errorDetails = new HashMap<>();
+            errorDetails.put("status", "500");
+            Map<String, Object> errorBody = new HashMap<>();
+            errorBody.put("code", "TOOL_ERROR");
+            errorBody.put("message", "메서드 실행 중 예외 발생: " + (e.getCause() != null ? e.getCause().getMessage() : e.getMessage()));
+            errorBody.put("details", errorDetails);
+
             Map<String, Object> error = new HashMap<>();
             error.put("jsonrpc", "2.0");
-            error.put("error", Map.of("code", -32000, "message", "메서드 실행 중 예외 발생: " + (e.getCause() != null ? e.getCause().getMessage() : e.getMessage())));
+            error.put("error", errorBody);
             error.put("id", payload != null ? payload.get("id") : null);
             return error;
         }
diff --git a/axhub-tool-hr/Dockerfile b/axhub-tool-hr/Dockerfile
deleted file mode 100644
index 3343e67..0000000
--- a/axhub-tool-hr/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM eclipse-temurin:21-jdk-alpine
-WORKDIR /app
-COPY build/libs/axhub-tool-hr-0.0.1-SNAPSHOT.jar app.jar
-ENTRYPOINT ["java", "-jar", "app.jar"]
diff --git a/axhub-tool-hr/build.gradle b/axhub-tool-hr/build.gradle
deleted file mode 100644
index 997adcb..0000000
--- a/axhub-tool-hr/build.gradle
+++ /dev/null
@@ -1,10 +0,0 @@
-plugins {
-    id 'org.springframework.boot'
-}
-dependencies {
-    implementation project(':axhub-tool-core')
-}
-dependencies {
-    compileOnly 'org.projectlombok:lombok:1.18.32'
-    annotationProcessor 'org.projectlombok:lombok:1.18.32'
-}
diff --git a/axhub-tool-hr/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/hr/HrToolApplication.java b/axhub-tool-hr/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/hr/HrToolApplication.java
deleted file mode 100644
index 11da8ae..0000000
--- a/axhub-tool-hr/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/hr/HrToolApplication.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package io.shinhanlife.axhub.biz.mcp.tool.hr;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.cache.annotation.EnableCaching;
-
-/**
- * @package io.shinhanlife.axhub.biz.mcp.tool.hr
- * @className HrToolApplication
- * @description AX HUB 시스템 처리 클래스
- * @author 
- * @create 
- * <pre>
- * ---------- 개정이력 ----------
- * 수정일      수정자    수정내용
- * ---------- -------- ---------------------------
- *       최초생성
- *
- * </pre>
- */
-@SpringBootApplication(scanBasePackages = {"io.shinhanlife.axhub.biz.mcp.tool", "io.shinhanlife.axhub.biz.mcp.adapter", "io.shinhanlife.axhub.common.mcp", "io.shinhanlife.axhub.common.config"})
-@org.springframework.boot.context.properties.ConfigurationPropertiesScan(basePackages = {"io.shinhanlife.axhub.biz.mcp.tool", "io.shinhanlife.axhub.biz.mcp.adapter", "io.shinhanlife.axhub.common.mcp", "io.shinhanlife.axhub.common.config"})
-@EnableCaching
-public class HrToolApplication {
-    public static void main(String[] args) {
-        SpringApplication.run(HrToolApplication.class, args);
-    }
-}
diff --git a/axhub-tool-hr/src/main/resources/application-local.properties b/axhub-tool-hr/src/main/resources/application-local.properties
deleted file mode 100644
index 54d056d..0000000
--- a/axhub-tool-hr/src/main/resources/application-local.properties
+++ /dev/null
@@ -1,32 +0,0 @@
-# Local 환경 전용 설정 (H2 메모리 DB 등)
-spring.datasource.url=jdbc:p6spy:h2:mem:testdb;DB_CLOSE_DELAY=-1;
-spring.datasource.driverClassName=com.p6spy.engine.spy.P6SpyDriver
-spring.datasource.username=sa
-spring.datasource.password=password
-
-spring.h2.console.enabled=true
-# EIMS 동적 라우팅 접속 정보
-eims.http.url=http://localhost:${server.port}/api/gateway
-eims.tcp.host=127.0.0.1
-eims.tcp.port=8090
-eims.tcp.timeout=5000
-eims.jsp.form.url=http://localhost:${server.port}/mock/jsp-form
-eims.jsp.json.url=http://localhost:${server.port}/mock/jsp-json
-eims.mci.url=http://localhost:${server.port}/api/mock/esb/api
-eims.mcistring.url=http://localhost:${server.port}/api/mock/esb/string
-
-# API 보안 키 설정
-mcp.security.api-keys.SHINHAN_MCP_SECRET_KEY_2026=mcp-client-1
-mcp.security.api-keys.SHINHAN_MCP_TEST_KEY_9999=mcp-client-2
-mcp.security.tenant-domains.mcp-client-1=CUSTOMER,COMMON
-mcp.security.tenant-domains.mcp-client-2=ALL
-
-# Gateway/Tool URLs
-axhub.gateway.url=http://localhost:8081
-axhub.tool.url=http://localhost:${server.port}
-
-# Disable Kafka
-spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration
-
-# Suppress Kafka Connection Logs
-logging.level.org.apache.kafka=ERROR
diff --git a/axhub-tool-hr/src/main/resources/application-local.yml b/axhub-tool-hr/src/main/resources/application-local.yml
deleted file mode 100644
index 2c12d7c..0000000
--- a/axhub-tool-hr/src/main/resources/application-local.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-spring:
-  application:
-    name: axhub-tool-hr
-  config:
-    import: "classpath:config/application-glow-local.yml"
-
-server:
-  port: 8086
-
-axhub:
-  tool:
-    url: "http://tool-hr:8086"
diff --git a/axhub-tool-hr/src/main/resources/application.properties b/axhub-tool-hr/src/main/resources/application.properties
deleted file mode 100644
index 1a4d891..0000000
--- a/axhub-tool-hr/src/main/resources/application.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-spring.profiles.active=local
-mcp.namespace=hr
diff --git a/axhub-tool-other/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/service/BondIssueService.java b/axhub-tool-other/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/service/BondIssueService.java
index 57d638c..e82ed98 100644
--- a/axhub-tool-other/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/service/BondIssueService.java
+++ b/axhub-tool-other/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/service/BondIssueService.java
@@ -30,7 +30,7 @@ public class BondIssueService extends AbstractMcpToolService {
         return executeLegacy("EAI", "BOND_001", data);
     }
 
-    @McpFunction(name = "issue", register = true, description = "증권 발행 테스트", prompt = "디지털 증권 발행 프로세스를 실행해.", mappingId = "BOND_002")
+1    @McpFunction(name = "issue", register = true, description = "증권 발행 테스트1", prompt = "디지털 증권 발행 프로세스를 실행해.", mappingId = "BOND_002")
     public Object issue(BondIssueReq data) {
         return executeLegacy("EAI", "BOND_002", data);
     }