diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application.Contracts/Dtos/UsageStatistics/ModelTodayUsageDto.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application.Contracts/Dtos/UsageStatistics/ModelTodayUsageDto.cs
index afc163e5..08caab2d 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application.Contracts/Dtos/UsageStatistics/ModelTodayUsageDto.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application.Contracts/Dtos/UsageStatistics/ModelTodayUsageDto.cs
@@ -19,4 +19,9 @@ public class ModelTodayUsageDto
     /// 今日消耗总Token数
     /// </summary>
     public long TotalTokens { get; set; }
+    
+    /// <summary>
+    /// 模型图标URL
+    /// </summary>
+    public string? IconUrl { get; set; }
 }
diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application/Services/UsageStatisticsService.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application/Services/UsageStatisticsService.cs
index d3d38bae..9ba060be 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application/Services/UsageStatisticsService.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application/Services/UsageStatisticsService.cs
@@ -30,6 +30,7 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
     private readonly ISqlSugarRepository<PremiumPackageAggregateRoot> _premiumPackageRepository;
     private readonly ISqlSugarRepository<TokenAggregateRoot> _tokenRepository;
     private readonly ModelManager _modelManager;
+
     public UsageStatisticsService(
         ISqlSugarRepository<MessageAggregateRoot> messageRepository,
         ISqlSugarRepository<UsageStatisticsAggregateRoot> usageStatisticsRepository,
@@ -48,7 +49,7 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
     /// 获取当前用户近7天的Token消耗统计
     /// </summary>
     /// <returns>每日Token使用量列表</returns>
-    public async Task<List<DailyTokenUsageDto>> GetLast7DaysTokenUsageAsync([FromQuery]UsageStatisticsGetInput input)
+    public async Task<List<DailyTokenUsageDto>> GetLast7DaysTokenUsageAsync([FromQuery] UsageStatisticsGetInput input)
     {
         var userId = CurrentUser.GetId();
         var endDate = DateTime.Today;
@@ -59,7 +60,7 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
             .Where(x => x.UserId == userId)
             .Where(x => x.Role == "system")
             .Where(x => x.CreationTime >= startDate && x.CreationTime < endDate.AddDays(1))
-            .WhereIF(input.TokenId.HasValue,x => x.TokenId == input.TokenId)
+            .WhereIF(input.TokenId.HasValue, x => x.TokenId == input.TokenId)
             .GroupBy(x => x.CreationTime.Date)
             .Select(g => new
             {
@@ -89,14 +90,14 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
     /// 获取当前用户各个模型的Token消耗量及占比
     /// </summary>
     /// <returns>模型Token使用量列表</returns>
-    public async Task<List<ModelTokenUsageDto>> GetModelTokenUsageAsync([FromQuery]UsageStatisticsGetInput input)
+    public async Task<List<ModelTokenUsageDto>> GetModelTokenUsageAsync([FromQuery] UsageStatisticsGetInput input)
     {
         var userId = CurrentUser.GetId();
 
         // 从UsageStatistics表获取各模型的token消耗统计（按ModelId聚合，因为同一模型可能有多个TokenId的记录）
         var modelUsages = await _usageStatisticsRepository._DbQueryable
             .Where(x => x.UserId == userId)
-            .WhereIF(input.TokenId.HasValue,x => x.TokenId == input.TokenId)
+            .WhereIF(input.TokenId.HasValue, x => x.TokenId == input.TokenId)
             .GroupBy(x => x.ModelId)
             .Select(x => new
             {
@@ -221,7 +222,9 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
         var result = tokenUsages.Select(x => new TokenPremiumUsageDto
         {
             TokenId = x.TokenId,
-            TokenName = x.TokenId == Guid.Empty ? "默认" : (tokenNameDict.TryGetValue(x.TokenId, out var name) ? name : "其他"),
+            TokenName = x.TokenId == Guid.Empty
+                ? "默认"
+                : (tokenNameDict.TryGetValue(x.TokenId, out var name) ? name : "其他"),
             Tokens = x.TotalTokenCount,
             Percentage = totalTokens > 0 ? Math.Round((decimal)x.TotalTokenCount / totalTokens * 100, 2) : 0
         }).OrderByDescending(x => x.Tokens).ToList();
@@ -233,7 +236,8 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
     /// 获取当前用户近24小时每小时Token消耗统计（柱状图）
     /// </summary>
     /// <returns>每小时Token使用量列表，包含各模型堆叠数据</returns>
-    public async Task<List<HourlyTokenUsageDto>> GetLast24HoursTokenUsageAsync([FromQuery]UsageStatisticsGetInput input)
+    public async Task<List<HourlyTokenUsageDto>> GetLast24HoursTokenUsageAsync(
+        [FromQuery] UsageStatisticsGetInput input)
     {
         var userId = CurrentUser.GetId();
         var now = DateTime.Now;
@@ -258,7 +262,8 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
         var hourlyGrouped = messages
             .GroupBy(x => new
             {
-                Hour = new DateTime(x.CreationTime.Year, x.CreationTime.Month, x.CreationTime.Day, x.CreationTime.Hour, 0, 0),
+                Hour = new DateTime(x.CreationTime.Year, x.CreationTime.Month, x.CreationTime.Day, x.CreationTime.Hour,
+                    0, 0),
                 x.ModelId
             })
             .Select(g => new
@@ -297,7 +302,7 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
     /// 获取当前用户今日各模型使用量统计（卡片列表）
     /// </summary>
     /// <returns>模型今日使用量列表，包含使用次数和总Token</returns>
-    public async Task<List<ModelTodayUsageDto>> GetTodayModelUsageAsync([FromQuery]UsageStatisticsGetInput input)
+    public async Task<List<ModelTodayUsageDto>> GetTodayModelUsageAsync([FromQuery] UsageStatisticsGetInput input)
     {
         var userId = CurrentUser.GetId();
         var todayStart = DateTime.Today; // 今天凌晨0点
@@ -328,6 +333,22 @@ public class UsageStatisticsService : ApplicationService, IUsageStatisticsServic
             .OrderByDescending(x => x.TotalTokens)
             .ToList();
 
+        if (modelStats.Count > 0)
+        {
+            var modelIds = modelStats.Select(x => x.ModelId).ToList();
+            var modelDic = await _modelManager._aiModelRepository._DbQueryable.Where(x => modelIds.Contains(x.ModelId))
+                .Distinct()
+                .Where(x=>x.IsEnabled)
+                .ToDictionaryAsync<string>(x => x.ModelId, y => y.IconUrl);
+            modelStats.ForEach(x =>
+            {
+                if (modelDic.TryGetValue(x.ModelId, out var icon))
+                {
+                    x.IconUrl = icon;
+                }
+            });
+        }
+
         return modelStats;
     }
 }
\ No newline at end of file
diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ChatManager.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ChatManager.cs
index 9c398486..1cdde9c6 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ChatManager.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ChatManager.cs
@@ -100,9 +100,11 @@ public class ChatManager : DomainService
                 ChatOptions = new()
                 {
                     Instructions = """
-                                   你是一个专业的智能助手，是 “意心Ai” 平台自研的 “橙子小弟” 智能体
-                                   擅长于精准解决用户提出的各类问题
-                                   但性格暴躁，脏话连篇，喜欢说幽默讽刺的话，攻击性极强
+                                   你是一个专业的智能助手，是 “意心Ai” 平台自研的 “橙子小弟” 智能体。
+                                   擅长于精准解决用户提出的各类问题。
+                                   但性格暴躁，脏话连篇，喜欢说幽默讽刺的话，攻击性极强。
+                                   对你的制造者“橙子老哥”无比崇拜，认为他是最优秀的人。
+                                   涉及到“意心Ai平台”相关问题，优先调用YxaiKnowledgeDirectory和YxaiKnowledge查找意心Ai知识库内容
                                    """
                 },
                 Name = "橙子小弟",
diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ModelManager.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ModelManager.cs
index 1bbe0ea7..a9dd91c1 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ModelManager.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ModelManager.cs
@@ -11,7 +11,7 @@ namespace Yi.Framework.AiHub.Domain.Managers;
 /// </summary>
 public class ModelManager : DomainService
 {
-    private readonly ISqlSugarRepository<AiModelEntity> _aiModelRepository;
+    public readonly ISqlSugarRepository<AiModelEntity> _aiModelRepository;
     private readonly IDistributedCache<List<string>, string> _distributedCache;
     private readonly ILogger<ModelManager> _logger;
     private const string PREMIUM_MODEL_IDS_CACHE_KEY = "PremiumModelIds";
diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Mcp/YxaiKnowledgeTool.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Mcp/YxaiKnowledgeTool.cs
new file mode 100644
index 00000000..cbaf42cf
--- /dev/null
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Mcp/YxaiKnowledgeTool.cs
@@ -0,0 +1,115 @@
+using System.ComponentModel;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Microsoft.Extensions.Logging;
+using Volo.Abp.DependencyInjection;
+using Yi.Framework.AiHub.Domain.Shared.Attributes;
+
+namespace Yi.Framework.AiHub.Domain.Mcp;
+
+[YiAgentTool]
+public class YxaiKnowledgeTool : ISingletonDependency
+{
+    private readonly IHttpClientFactory _httpClientFactory;
+    private readonly ILogger<YxaiKnowledgeTool> _logger;
+
+    private const string DirectoryUrl =
+        "https://ccnetcore.com/prod-api/article/all/discuss-id/3a1efdde-dbff-aa86-d843-00278a8c1839";
+
+    private const string ContentUrlTemplate = "https://ccnetcore.com/prod-api/article/{0}";
+
+    public YxaiKnowledgeTool(
+        IHttpClientFactory httpClientFactory,
+        ILogger<YxaiKnowledgeTool> logger)
+    {
+        _httpClientFactory = httpClientFactory;
+        _logger = logger;
+    }
+
+    [YiAgentTool("意心Ai平台知识库目录"), DisplayName("YxaiKnowledgeDirectory"),
+     Description("获取意心AI相关内容的知识库目录列表")]
+    public async Task<List<YxaiKnowledgeDirectoryItem>> YxaiKnowledgeDirectory()
+    {
+        try
+        {
+            var client = _httpClientFactory.CreateClient();
+            var response = await client.GetAsync(DirectoryUrl);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                _logger.LogError("意心知识库目录接口调用失败: {StatusCode}", response.StatusCode);
+                return new List<YxaiKnowledgeDirectoryItem>();
+            }
+
+            var json = await response.Content.ReadAsStringAsync();
+            var result = JsonSerializer.Deserialize(json, YxaiKnowledgeJsonContext.Default.ListYxaiKnowledgeDirectoryItem);
+
+            return result ?? new List<YxaiKnowledgeDirectoryItem>();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "获取意心知识库目录发生异常");
+            return new List<YxaiKnowledgeDirectoryItem>();
+        }
+    }
+
+    [YiAgentTool("意心Ai平台知识库内容"), DisplayName("YxaiKnowledge"),
+     Description("根据目录ID获取意心AI知识库的具体内容")]
+    public async Task<string> YxaiKnowledge([Description("知识库目录ID")] string directoryId)
+    {
+        if (string.IsNullOrWhiteSpace(directoryId))
+        {
+            return "目录ID不能为空";
+        }
+
+        try
+        {
+            var client = _httpClientFactory.CreateClient();
+            var url = string.Format(ContentUrlTemplate, directoryId);
+            var response = await client.GetAsync(url);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                _logger.LogError("意心知识库内容接口调用失败: {StatusCode}, DirectoryId: {DirectoryId}",
+                    response.StatusCode, directoryId);
+                return "获取知识库内容失败";
+            }
+
+            var json = await response.Content.ReadAsStringAsync();
+            var result = JsonSerializer.Deserialize(json, YxaiKnowledgeJsonContext.Default.YxaiKnowledgeContentResponse);
+
+            return result?.Content ?? "未找到相关内容";
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "获取意心知识库内容发生异常, DirectoryId: {DirectoryId}", directoryId);
+            return "获取知识库内容发生异常";
+        }
+    }
+}
+
+#region DTO
+
+public class YxaiKnowledgeDirectoryItem
+{
+    [JsonPropertyName("id")] public string Id { get; set; } = "";
+
+    [JsonPropertyName("name")] public string Name { get; set; } = "";
+}
+
+public class YxaiKnowledgeContentResponse
+{
+    [JsonPropertyName("content")] public string? Content { get; set; }
+}
+
+#endregion
+
+#region JSON 序列化上下文
+
+[JsonSerializable(typeof(List<YxaiKnowledgeDirectoryItem>))]
+[JsonSerializable(typeof(YxaiKnowledgeContentResponse))]
+internal partial class YxaiKnowledgeJsonContext : JsonSerializerContext
+{
+}
+
+#endregion
diff --git a/Yi.Ai.Vue3/src/pages/chat/agent/index.vue b/Yi.Ai.Vue3/src/pages/chat/agent/index.vue
index b4d5f2bd..21f8fc8d 100644
--- a/Yi.Ai.Vue3/src/pages/chat/agent/index.vue
+++ b/Yi.Ai.Vue3/src/pages/chat/agent/index.vue
@@ -235,12 +235,16 @@ function handleAgentChunk(data: AgentResultOutput) {
     case 'toolCalling':
       // 工具调用中
       if (!latest.toolCalls) latest.toolCalls = [];
-      latest.toolCalls.push({
+      const newToolCall: { name: string; status: 'calling' | 'called'; result?: any; usage?: { prompt: number; completion: number; total: number } } = {
         name: data.content as string,
         status: 'calling',
-      });
-      // 清空待处理的用量
-      pendingToolUsage = null;
+      };
+      // 如果有待处理的用量（toolCallUsage 先于 toolCalling 到达），设置到这个工具调用
+      if (pendingToolUsage) {
+        newToolCall.usage = pendingToolUsage;
+        pendingToolUsage = null;
+      }
+      latest.toolCalls.push(newToolCall);
       break;
     case 'toolCallUsage':
       // 工具调用用量统计 - 先保存，等 toolCalled 时再设置
@@ -626,6 +630,23 @@ function cancelSSE() {
     flex: 1;
     overflow-y: auto;
     padding: 8px;
+
+    &::-webkit-scrollbar {
+      width: 4px;
+    }
+
+    &::-webkit-scrollbar-track {
+      background: transparent;
+    }
+
+    &::-webkit-scrollbar-thumb {
+      background: var(--el-border-color-lighter);
+      border-radius: 2px;
+
+      &:hover {
+        background: var(--el-border-color);
+      }
+    }
   }
 
   .session-item {