diff --git a/app/schedule/syncGitAgents.js b/app/schedule/syncGitAgents.js
index 1527900..2e068d8 100644
--- a/app/schedule/syncGitAgents.js
+++ b/app/schedule/syncGitAgents.js
@@ -1,12 +1,9 @@
-module.exports = (app) => {
-    const autoSyncInterval = app.config.agentMarket?.autoSyncInterval;
-
+module.exports = () => {
     return {
         schedule: {
-            interval: autoSyncInterval || '1h',
+            cron: '0 0 * * * *', // 每小时整点执行
             type: 'worker', // 仅由单个 worker 执行，避免多 worker 并发冲突
             immediate: false, // 应用启动后等待到达周期再执行
-            disable: !autoSyncInterval || autoSyncInterval === '0',
         },
         // 定时轮询同步所有已配置 GitLab 仓库的 Agent 插件
         async task(ctx) {
diff --git a/app/service/skills.js b/app/service/skills.js
index a791670..8e1c253 100644
--- a/app/service/skills.js
+++ b/app/service/skills.js
@@ -221,9 +221,19 @@ class SkillsService extends Service {
             await SkillsItem.increment('downloads', {
                 by: 1,
                 where: { slug: value, is_delete: 0 },
-                // Do not bump updated_at — downloads must not reorder "recent" sort.
+                // 不触发 updated_at 变更，下载量增加不应影响最近更新时间与排序
                 silent: true,
+                attributes: {
+                    updated_at: this.app.Sequelize.col('updated_at'),
+                },
             });
+            if (this.skillCache) {
+                const target =
+                    this.skillCache.bySlug?.[value] || this.skillCache.byInstallKey?.[value];
+                if (target) {
+                    target.downloads = (target.downloads || 0) + 1;
+                }
+            }
         } catch (error) {
             this.ctx.logger.warn(
                 `[skills] increment downloads failed for ${value}: ${error.message}`
diff --git a/app/web/pages/agents/detail/AgentDetailContent.tsx b/app/web/pages/agents/detail/AgentDetailContent.tsx
index ae1d490..1237204 100644
--- a/app/web/pages/agents/detail/AgentDetailContent.tsx
+++ b/app/web/pages/agents/detail/AgentDetailContent.tsx
@@ -572,7 +572,7 @@ const AgentDetailContent: React.FC<AgentDetailContentProps> = ({ name, history }
                                     <div className="agent-sync-meta-item">
                                         <span className="meta-label">
                                             最近刷新时间
-                                            <Tooltip title="最近一次向 GitLab 发起检查（确认远端是否有新提交）的时间">
+                                            <Tooltip title="最近一次向 GitLab 发起检查（确认远端是否有新提交）的时间，定时间隔：1小时">
                                                 <QuestionCircleOutlined className="meta-tip-icon" />
                                             </Tooltip>
                                         </span>
@@ -581,7 +581,7 @@ const AgentDetailContent: React.FC<AgentDetailContentProps> = ({ name, history }
                                     <div className="agent-sync-meta-item">
                                         <span className="meta-label">
                                             最近同步代码时间
-                                            <Tooltip title="最近一次成功拉取新代码变动并完成同步入库的时间">
+                                            <Tooltip title="最近一次成功拉取新代码变动并完成同步入库的时间，定时间隔：1小时">
                                                 <QuestionCircleOutlined className="meta-tip-icon" />
                                             </Tooltip>
                                         </span>
diff --git a/app/web/pages/skills/detail/SkillDetailContent.tsx b/app/web/pages/skills/detail/SkillDetailContent.tsx
index ad78eda..eb74233 100644
--- a/app/web/pages/skills/detail/SkillDetailContent.tsx
+++ b/app/web/pages/skills/detail/SkillDetailContent.tsx
@@ -129,6 +129,11 @@ const SkillDetailContent: React.FC<SkillDetailContentProps> = ({
         }
     };
 
+    // 点击下载仅递增下载量，不更新最近更新时间
+    const handleDownload = () => {
+        setDetail((prev) => (prev ? { ...prev, downloads: (prev.downloads || 0) + 1 } : prev));
+    };
+
     useEffect(() => {
         setUiSelectedFilePath('');
         setSelectedFilePath('');
@@ -312,6 +317,7 @@ const SkillDetailContent: React.FC<SkillDetailContentProps> = ({
                         agentTerminalCommand={agentTerminalCommand}
                         manualDownloadUrl={manualDownloadUrl}
                         contributor={detail?.contributor || ''}
+                        onDownload={handleDownload}
                     />
                 ) : null}
             </div>
diff --git a/app/web/pages/skills/detail/components/SkillInstallPanel.tsx b/app/web/pages/skills/detail/components/SkillInstallPanel.tsx
index 3c39fc6..c30d9be 100644
--- a/app/web/pages/skills/detail/components/SkillInstallPanel.tsx
+++ b/app/web/pages/skills/detail/components/SkillInstallPanel.tsx
@@ -38,6 +38,7 @@ interface SkillInstallPanelProps {
     agentTerminalCommand: string;
     manualDownloadUrl: string;
     contributor?: string;
+    onDownload?: () => void;
 }
 
 const renderTerminalCommand = (command: string, copyMessage: string) => (
@@ -77,6 +78,7 @@ export const SkillInstallPanel: React.FC<SkillInstallPanelProps> = ({
     agentTerminalCommand,
     manualDownloadUrl,
     contributor = '',
+    onDownload,
 }) => (
     <aside className="detail-right-sidebar">
         <section className="install-panel">
@@ -179,7 +181,10 @@ export const SkillInstallPanel: React.FC<SkillInstallPanelProps> = ({
                 <Button
                     type="default"
                     className="download-btn"
-                    onClick={() => safeOpenUrl(manualDownloadUrl)}
+                    onClick={() => {
+                        onDownload?.();
+                        safeOpenUrl(manualDownloadUrl);
+                    }}
                 >
                     <DetailIcon src={downloadIcon} className="is-download" />
                     下载 .zip
diff --git a/config/config.default.js b/config/config.default.js
index 7603f89..50aae32 100644
--- a/config/config.default.js
+++ b/config/config.default.js
@@ -47,7 +47,6 @@ module.exports = (app) => {
         storageDir: process.env.AGENT_MARKET_STORAGE_DIR || '/data/doraemon/agent-market',
         gitlabToken: process.env.GITLAB_TOKEN || '',
         gitlabHostWhitelist: ['gitlab.prod.dtstack.cn'],
-        autoSyncInterval: process.env.AGENT_MARKET_AUTO_SYNC_INTERVAL || '1h',
     };
 
     exports.middleware = ['access'];
diff --git a/test/agent-detail-layout.test.js b/test/agent-detail-layout.test.js
index 4aac951..8151ac2 100644
--- a/test/agent-detail-layout.test.js
+++ b/test/agent-detail-layout.test.js
@@ -88,3 +88,16 @@ test('Agent 详情页提供当前原始 ZIP 下载入口（图标与 hover 提
     assert.match(style, /\.agent-side-download-btn/);
     assert.doesNotMatch(component, /agent-archive-download/);
 });
+
+test('Agent 详情页展示刷新和同步代码时间的 hover 提示包含定时间隔', () => {
+    const { component } = readDetailFiles();
+
+    assert.match(
+        component,
+        /Tooltip title="最近一次向 GitLab 发起检查（确认远端是否有新提交）的时间，定时间隔：1小时"/
+    );
+    assert.match(
+        component,
+        /Tooltip title="最近一次成功拉取新代码变动并完成同步入库的时间，定时间隔：1小时"/
+    );
+});
diff --git a/test/agent-schedule-sync.test.js b/test/agent-schedule-sync.test.js
index 530677c..aeab0a5 100644
--- a/test/agent-schedule-sync.test.js
+++ b/test/agent-schedule-sync.test.js
@@ -3,42 +3,16 @@ const assert = require('node:assert/strict');
 
 const syncScheduleFactory = require('../app/schedule/syncGitAgents');
 
-test('syncGitAgents 定时任务默认配置 1h 且工作在 worker 模式', () => {
-    const mockApp = {
-        config: {
-            agentMarket: {
-                autoSyncInterval: '1h',
-            },
-        },
-    };
-    const scheduleDef = syncScheduleFactory(mockApp);
-    assert.equal(scheduleDef.schedule.interval, '1h');
+test('syncGitAgents 定时任务配置每小时整点 cron 且工作在 worker 模式', () => {
+    const scheduleDef = syncScheduleFactory();
+    assert.equal(scheduleDef.schedule.cron, '0 0 * * * *');
     assert.equal(scheduleDef.schedule.type, 'worker');
-    assert.equal(scheduleDef.schedule.disable, false);
-});
-
-test('syncGitAgents 支持禁用定时任务', () => {
-    const mockApp = {
-        config: {
-            agentMarket: {
-                autoSyncInterval: '',
-            },
-        },
-    };
-    const scheduleDef = syncScheduleFactory(mockApp);
-    assert.equal(scheduleDef.schedule.disable, true);
+    assert.equal(scheduleDef.schedule.immediate, false);
 });
 
 test('syncGitAgents 定时任务调用 service.agents.syncAllGitAgents', async () => {
     let called = false;
-    const mockApp = {
-        config: {
-            agentMarket: {
-                autoSyncInterval: '5m',
-            },
-        },
-    };
-    const scheduleDef = syncScheduleFactory(mockApp);
+    const scheduleDef = syncScheduleFactory();
     const mockCtx = {
         logger: {
             info() {},
diff --git a/test/skills-increment-downloads.test.js b/test/skills-increment-downloads.test.js
new file mode 100644
index 0000000..4dd9ed9
--- /dev/null
+++ b/test/skills-increment-downloads.test.js
@@ -0,0 +1,56 @@
+const test = require('node:test');
+const assert = require('node:assert/strict');
+
+const SkillsService = require('../app/service/skills');
+
+test('incrementDownloads increments downloads and preserves updated_at', async () => {
+    let incrementCalledWith = null;
+
+    const mockSkillsItem = {
+        increment: async (field, options) => {
+            incrementCalledWith = { field, options };
+            return [1];
+        },
+    };
+
+    const mockApp = {
+        model: {
+            SkillsItem: mockSkillsItem,
+        },
+        Sequelize: {
+            col: (colName) => `COL(${colName})`,
+        },
+    };
+
+    const mockCtx = {
+        logger: {
+            warn: () => {},
+        },
+    };
+
+    const service = Object.create(SkillsService.prototype);
+    service.app = mockApp;
+    service.ctx = mockCtx;
+    service.ensureStorageReady = async () => {};
+    service.skillCache = {
+        bySlug: {
+            'test-skill': {
+                slug: 'test-skill',
+                downloads: 3,
+                updatedAt: '2026-10-20T10:00:00.000Z',
+            },
+        },
+    };
+
+    await service.incrementDownloads('test-skill');
+
+    assert.equal(incrementCalledWith.field, 'downloads');
+    assert.equal(incrementCalledWith.options.by, 1);
+    assert.deepEqual(incrementCalledWith.options.where, { slug: 'test-skill', is_delete: 0 });
+    assert.equal(incrementCalledWith.options.silent, true);
+    assert.equal(incrementCalledWith.options.attributes.updated_at, 'COL(updated_at)');
+
+    // 验证内存缓存中的下载量已递增，且 updatedAt 保持不变
+    assert.equal(service.skillCache.bySlug['test-skill'].downloads, 4);
+    assert.equal(service.skillCache.bySlug['test-skill'].updatedAt, '2026-10-20T10:00:00.000Z');
+});