diff --git a/backend/python/app/api/chat_service.py b/backend/python/app/api/chat_service.py
index d9cad49..e31602a 100644
--- a/backend/python/app/api/chat_service.py
+++ b/backend/python/app/api/chat_service.py
@@ -3463,6 +3463,7 @@ async def _send_message_core(
 
 
                                     _schema = {"type": "object", "properties": {}}
+                                _schema = _normalize_mcp_schema(_schema)
 
 
 
@@ -5228,7 +5229,7 @@ async def _send_message_core(
 
 
 
-                                            tool_result = f"[工具调用已被策略拦截] {_policy_check.get('message', _reason)}"
+                                            tool_result = f"[策略拦截: {_policy_check.get('message', _reason)}] 建议: 检查权限设置或新开对话"
 
 
 
@@ -5404,7 +5405,7 @@ async def _send_message_core(
 
 
 
-                                            tool_result = "[MCP 工具未找到或映射缺失]"
+                                            tool_result = "[MCP 工具未找到] 建议: 检查工具名或尝试其他MCP工具。可用: " + str(list(mcp_tool_map.keys())[:5])
 
 
 
@@ -8402,6 +8403,35 @@ def _resolve_agent_tool_policy(agents):
 
 
 
+def _normalize_mcp_schema(schema: dict) -> dict:
+    """MCP JSON Schema -> OpenAI function calling 兼容。
+    处理: $ref, oneOf/anyOf -> first option, 剥离非标关键字"""
+    if not isinstance(schema, dict):
+        return {"type": "object", "properties": {}}
+    if "$ref" in schema:
+        return {"type": "object", "properties": {}}
+    if "oneOf" in schema or "anyOf" in schema:
+        opts = schema.get("oneOf") or schema.get("anyOf") or []
+        if opts and isinstance(opts[0], dict):
+            return _normalize_mcp_schema(opts[0])
+        return {"type": "object", "properties": {}}
+    if "allOf" in schema:
+        merged = {"type": "object", "properties": {}}
+        for s in schema.get("allOf", []):
+            sub = _normalize_mcp_schema(s)
+            if sub.get("properties"):
+                merged["properties"].update(sub["properties"])
+        return merged
+    result = {}
+    for k in ("type", "properties", "required", "description", "enum", "items"):
+        if k in schema:
+            result[k] = schema[k]
+    if result.get("type") != "object":
+        result["type"] = "object"
+    if "properties" not in result:
+        result["properties"] = {}
+    return result
+
 
 def _check_tool_policy(func_name, mcp_info, skills, policy, call_count, round_count):
 
diff --git a/backend/python/app/api/chat_skill.py b/backend/python/app/api/chat_skill.py
index 20f7e1f..453f62c 100644
--- a/backend/python/app/api/chat_skill.py
+++ b/backend/python/app/api/chat_skill.py
@@ -1272,7 +1272,7 @@ def _execute_skill_tool(
 
 
 
-        return f"工具 '{func_name}' 执行结果: 已处理输入内容, 但未找到对应的技能定义。请基于通用知识回复用户。"
+        return f"工具 '{func_name}' 执行结果: 已处理输入内容, 但未找到对应的技能定义。请基于通用知识回复用户。如有已加载的技能，可使用其名称直接调用。"
 
 
 
diff --git a/frontend/src/pages/front/ChatPage.css b/frontend/src/pages/front/ChatPage.css
index 781698d..ad6bd9e 100644
--- a/frontend/src/pages/front/ChatPage.css
+++ b/frontend/src/pages/front/ChatPage.css
@@ -1779,3 +1779,8 @@ html.dark .ai-sending-timeout {
   width: 16px;
   height: 16px;
 }
+
+.ai-process-running { animation: aiPulse 1.5s ease-in-out infinite; }
+@keyframes aiPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
+.ai-process-error { background: rgba(255,0,0,0.05); border-left: 2px solid #e74c3c; }
+.ai-process-running { border-left: 2px solid #3498db; }
diff --git a/frontend/src/pages/front/ChatPage.tsx b/frontend/src/pages/front/ChatPage.tsx
index 61bd85b..0569705 100644
--- a/frontend/src/pages/front/ChatPage.tsx
+++ b/frontend/src/pages/front/ChatPage.tsx
@@ -531,18 +531,41 @@ const AiProcessBlock: React.FC<{ steps: any[]; autoExpand: boolean }> = ({ steps
         AI 思考 / 执行过程（{steps.length} 步 — {open ? '自动收拢中... 点击手动收起' : '点击展开查看'}）
       </summary>
       <div className="ai-process-list">
-        {steps.map((s: any, i: number) => (
-          <div key={i} className={`ai-process-item ai-process-${s.type}`}>
-            <span className="ai-process-ico">
-              {s.type === 'thinking' ? '💡' : s.type === 'skill' ? '🛠' : '🔌'}
-            </span>
+        {steps.map((s: any, i: number) => {
+          const isLast = i === steps.length - 1;
+          const hasResult = s.result && s.result.length > 0;
+          const isError = hasResult && (s.result.includes('error') || s.result.includes('失败') || s.result.includes('异常') || s.result.includes('拦截'));
+          const isRunning = isLast && !hasResult;
+          const stepIcon = s.type === 'thinking' ? '💡' : s.type === 'skill' ? '🛠' : '🔌';
+          const statusIcon = isRunning ? ' ⏳' : isError ? ' ❌' : hasResult ? ' ✅' : '';
+          const resultDisplay = (s.result || '').length > 400 ? (s.result || '').slice(0, 400) + '...' : (s.result || '');
+          
+          return (
+          <div key={i} className={`ai-process-item ai-process-${s.type}${isRunning ? ' ai-process-running' : ''}${isError ? ' ai-process-error' : ''}`}>
+            <span className="ai-process-ico">{stepIcon}{statusIcon}</span>
             <div className="ai-process-body">
               {s.type === 'thinking' && (<><b className="ai-process-title">思考</b><p className="ai-process-text">{s.text}</p></>)}
-              {s.type === 'skill' && (<><b className="ai-process-title">调用技能：{s.name}</b><p className="ai-process-text">{(s.result || '').slice(0, 400)}</p></>)}
-              {s.type === 'mcp' && (<><b className="ai-process-title">MCP · {s.server}：{s.name}</b><p className="ai-process-text">{(s.result || '').slice(0, 400)}</p></>)}
+              {s.type === 'skill' && (<>
+                <b className="ai-process-title">调用技能：{s.name}{statusIcon}</b>
+                {s.args && Object.keys(s.args).length > 0 && (
+                  <span style={{fontSize:'12px',color:'#666',margin:'2px 0',display:'block'}}>
+                    参数: {JSON.stringify(s.args).slice(0, 200)}
+                  </span>
+                )}
+                {hasResult && <p className="ai-process-text">{resultDisplay}</p>}
+              </>)}
+              {s.type === 'mcp' && (<>
+                <b className="ai-process-title">MCP · {s.server}：{s.name}{statusIcon}</b>
+                {s.args && Object.keys(s.args).length > 0 && (
+                  <span style={{fontSize:'12px',color:'#666',margin:'2px 0',display:'block'}}>
+                    参数: {JSON.stringify(s.args).slice(0, 200)}
+                  </span>
+                )}
+                {hasResult && <p className="ai-process-text">{resultDisplay}</p>}
+              </>)}
             </div>
           </div>
-        ))}
+        )})}
       </div>
     </details>
   );