diff --git a/boot/common-framework/src/main/java/com/klaro/acquirecore/framework/TxContext.java b/boot/common-framework/src/main/java/com/klaro/acquirecore/framework/TxContext.java
index 1a56634..710de64 100644
--- a/boot/common-framework/src/main/java/com/klaro/acquirecore/framework/TxContext.java
+++ b/boot/common-framework/src/main/java/com/klaro/acquirecore/framework/TxContext.java
@@ -1,31 +1,53 @@
 package com.klaro.acquirecore.framework;
 
-import java.util.HashMap;
 import java.util.Map;
+import java.util.HashMap;
 
 /**
- * 레거시 TxCore {@code TXBUF} (고정 슬롯 키/값 버퍼) 의 Spring 대체 자리표시자.
- *
- * <p>실 전환에서는 요청/응답 DTO(record) 가 정형 필드를 담고, 이 컨텍스트는
- * 서비스 체인({@code tx_call}) 간 전달되는 느슨한 키/값 상태만 보관한다.
+ * Transaction context DTO holding state for a single transaction lifecycle.
+ * Migrated from txcore.h tx_context_t struct.
  */
-public final class TxContext {
+public class TxContext {
 
-    private final Map<String, Object> slots = new HashMap<>();
-
-    /** TXBUF 필드 설정 (레거시 {@code Fchg} 상당). */
-    public TxContext put(String key, Object value) {
-        slots.put(key, value);
-        return this;
+    /** Transaction state enumeration. Migrated from txcore.h tx_state_t. */
+    public enum TxState {
+        IDLE, PENDING, ACTIVE, COMMITTED, ROLLED_BACK, FAILED
     }
 
-    /** TXBUF 필드 조회 (레거시 {@code Fget} 상당). */
-    public Object get(String key) {
-        return slots.get(key);
+    private String txId;
+    private String serviceName;
+    private TxState state;
+    private long startTime;
+    private long endTime;
+    private Map<String, Object> attributes;
+    private String errorMessage;
+
+    public TxContext() {
+        this.attributes = new HashMap<>();
+        this.state = TxState.IDLE;
     }
 
-    /** 적재된 슬롯 개수. */
-    public int size() {
-        return slots.size();
+    public TxContext(String txId, String serviceName) {
+        this();
+        this.txId = txId;
+        this.serviceName = serviceName;
     }
+
+    public String getTxId() { return txId; }
+    public void setTxId(String txId) { this.txId = txId; }
+    public String getServiceName() { return serviceName; }
+    public void setServiceName(String serviceName) { this.serviceName = serviceName; }
+    public TxState getState() { return state; }
+    public void setState(TxState state) { this.state = state; }
+    public long getStartTime() { return startTime; }
+    public void setStartTime(long startTime) { this.startTime = startTime; }
+    public long getEndTime() { return endTime; }
+    public void setEndTime(long endTime) { this.endTime = endTime; }
+    public Map<String, Object> getAttributes() { return attributes; }
+    public void setAttributes(Map<String, Object> attributes) { this.attributes = attributes; }
+    public Object getAttribute(String key) { return attributes.get(key); }
+    public void setAttribute(String key, Object value) { attributes.put(key, value); }
+    public String getErrorMessage() { return errorMessage; }
+    public void setErrorMessage(String errorMessage) { this.errorMessage = errorMessage; }
+    public boolean isActive() { return state == TxState.ACTIVE || state == TxState.PENDING; }
 }