diff --git a/docs/usage-guide.md b/docs/usage-guide.md
index b0e365070..07497e765 100644
--- a/docs/usage-guide.md
+++ b/docs/usage-guide.md
@@ -2574,7 +2574,7 @@ Notify external endpoints when team events happen. Each endpoint declares a `url
 
 **Payload.** Only whitelisted, non-sensitive fields are sent: `skillName` for `skill-use`, `sessionId` for session events; `push`/`pull` carry the event and metadata only. Raw tool input and tool output are **never** forwarded, and the whole body is passed through teamai's secret redactor before it leaves the machine.
 
-**Signature.** When `secret` is set, each request carries `X-TeamAI-Signature: sha256=<hmac>`, an HMAC-SHA256 computed over the exact request body — so a receiver can verify authenticity. `teamai webhook list` and `teamai webhook test` inspect and exercise configured endpoints.
+**Signature.** When `secret` is set, each request carries `X-TeamAI-Signature: sha256=<hmac>`, an HMAC-SHA256 computed over the exact request body — so a receiver can verify authenticity. `teamai webhook list` and `teamai webhook test` inspect and exercise configured endpoints; `teamai webhook test --dry-run` previews how many endpoints would receive a request without sending one.
 
 ---
 
diff --git a/docs/usage-guide.zh-CN.md b/docs/usage-guide.zh-CN.md
index 1e33ebf80..d8a076c6d 100644
--- a/docs/usage-guide.zh-CN.md
+++ b/docs/usage-guide.zh-CN.md
@@ -2407,7 +2407,7 @@ toolRoots:                     # 可选，每机器的工具根目录（见下
 
 **载荷。** 仅发送白名单内的非敏感字段：`skill-use` 发送 `skillName`，session 事件发送 `sessionId`；`push`/`pull` 只带事件与元数据。原始工具入参与工具输出**绝不**外发，且整个请求体在离开本机前会经过 teamai 的密钥脱敏处理。
 
-**签名。** 设置 `secret` 后，每个请求都会带上 `X-TeamAI-Signature: sha256=<hmac>`——对**实际发送的请求体**计算的 HMAC-SHA256，供接收端校验真实性。`teamai webhook list` 与 `teamai webhook test` 可查看和测试已配置的端点。
+**签名。** 设置 `secret` 后，每个请求都会带上 `X-TeamAI-Signature: sha256=<hmac>`——对**实际发送的请求体**计算的 HMAC-SHA256，供接收端校验真实性。`teamai webhook list` 与 `teamai webhook test` 可查看和测试已配置的端点；`teamai webhook test --dry-run` 只预览将发送到多少个端点，不发送请求。
 
 ---
 
diff --git a/src/__tests__/e2e/webhook-test-dry-run.test.ts b/src/__tests__/e2e/webhook-test-dry-run.test.ts
new file mode 100644
index 000000000..1da88e2f0
--- /dev/null
+++ b/src/__tests__/e2e/webhook-test-dry-run.test.ts
@@ -0,0 +1,70 @@
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
+import { spawnSync } from 'node:child_process';
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..', '..', '..');
+const cli = path.join(root, 'dist', 'index.js');
+
+describe('webhook test --dry-run (real CLI)', () => {
+  let sandbox: string;
+  let home: string;
+
+  beforeAll(() => {
+    if (!fs.existsSync(cli)) throw new Error(`CLI binary not found at ${cli}. Run "npm run build" first.`);
+    sandbox = fs.mkdtempSync(path.join(os.tmpdir(), 'teamai-webhook-preview-'));
+    home = path.join(sandbox, 'home');
+    const teamRepo = path.join(home, '.teamai', 'team-repo');
+    fs.mkdirSync(teamRepo, { recursive: true });
+    fs.writeFileSync(path.join(teamRepo, 'teamai.yaml'), [
+      'team: webhook-preview-e2e',
+      'repo: https://example.com/team.git',
+      'provider: git',
+      'sharing:',
+      '  webhooks:',
+      '    enabled: true',
+      '    endpoints:',
+      '      - url: http://127.0.0.1:9/hook',
+      '        type: json',
+      '        events: ["*"]',
+      '        timeout: 500',
+      '        retries: 0',
+    ].join('\n'));
+    fs.writeFileSync(path.join(home, '.teamai', 'config.yaml'), [
+      'repo:',
+      `  localPath: ${teamRepo}`,
+      '  remote: https://example.com/team.git',
+      'username: e2e-user',
+      'updatePolicy: auto',
+      'scope: user',
+    ].join('\n'));
+  });
+
+  afterAll(() => {
+    if (sandbox) fs.rmSync(sandbox, { recursive: true, force: true });
+  });
+
+  it.each([
+    { url: undefined, count: 1 },
+    { url: 'http://127.0.0.1:9/unmatched', count: 0 },
+  ])('previews $count endpoint(s) without sending a request or rewriting config', ({ url, count }) => {
+    const configPath = path.join(home, '.teamai', 'config.yaml');
+    const before = fs.readFileSync(configPath);
+    const args = [cli, 'webhook', 'test', '--dry-run'];
+    if (url) args.push('--url', url);
+    const result = spawnSync(process.execPath, args, {
+      cwd: home,
+      env: { ...process.env, HOME: home, FORCE_COLOR: '0' },
+      encoding: 'utf8',
+      timeout: 10_000,
+    });
+
+    expect(result.status).toBe(0);
+    expect(result.stdout + result.stderr).toContain(`[dry-run] Would send a test webhook to ${count} endpoint(s).`);
+    expect(result.stdout + result.stderr).not.toContain('No webhook endpoints configured.');
+    expect(result.stdout + result.stderr).not.toContain('Webhook test failed');
+    expect(fs.readFileSync(configPath)).toEqual(before);
+  });
+});
diff --git a/src/__tests__/webhook.test.ts b/src/__tests__/webhook.test.ts
index fbcf849de..c3c1549b4 100644
--- a/src/__tests__/webhook.test.ts
+++ b/src/__tests__/webhook.test.ts
@@ -174,6 +174,34 @@ describe('webhook', () => {
   }
 
   describe('testWebhook', () => {
+    it('previews matching endpoints without sending a request or migrating config', async () => {
+      const { testWebhook } = await import('../webhook.js');
+      const { log } = await import('../utils/logger.js');
+
+      await testWebhook('https://open.feishu.cn/open-apis/bot/v2/hook/test', { dryRun: true });
+
+      expect(mockAutoDetectInit).toHaveBeenCalledWith(undefined, { dryRun: true });
+      expect(log.info).toHaveBeenCalledWith('[dry-run] Would send a test webhook to 1 endpoint(s).');
+      expect(mockFetch).not.toHaveBeenCalled();
+    });
+
+    it.each(['unmatched URL', 'no configured endpoints'])('previews zero endpoints for %s', async (scenario) => {
+      const { testWebhook } = await import('../webhook.js');
+      const { log } = await import('../utils/logger.js');
+      if (scenario === 'no configured endpoints') {
+        const config = singleEndpointConfig(0);
+        config.teamConfig.sharing.webhooks.endpoints = [];
+        mockAutoDetectInit.mockResolvedValueOnce(config);
+      }
+
+      await testWebhook('https://example.com/unmatched', { dryRun: true });
+
+      expect(mockAutoDetectInit).toHaveBeenCalledWith(undefined, { dryRun: true });
+      expect(log.info).toHaveBeenCalledWith('[dry-run] Would send a test webhook to 0 endpoint(s).');
+      expect(log.warn).not.toHaveBeenCalled();
+      expect(mockFetch).not.toHaveBeenCalled();
+    });
+
     it('should send test event to all endpoints', async () => {
       const { testWebhook } = await import('../webhook.js');
 
diff --git a/src/index.ts b/src/index.ts
index ed85f4186..96bc3313a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -828,8 +828,9 @@ webhookCmd
   .description('Send test event to webhook endpoints')
   .option('--url <url>', 'Test specific endpoint URL')
   .action(async (cmdOpts) => {
+    const globalOpts = program.opts() as GlobalOptions;
     const { testWebhook } = await import('./webhook.js');
-    await testWebhook(cmdOpts.url);
+    await testWebhook(cmdOpts.url, { dryRun: globalOpts.dryRun });
   });
 
 // ─── Model profile commands ─────────────────────────────
diff --git a/src/webhook.ts b/src/webhook.ts
index 4bd0712a0..45fd8cb96 100644
--- a/src/webhook.ts
+++ b/src/webhook.ts
@@ -157,13 +157,18 @@ export async function listWebhooks(): Promise<WebhookEndpoint[]> {
 /**
  * Test webhook by sending a test event.
  */
-export async function testWebhook(url?: string): Promise<void> {
-  const config = await loadWebhookConfig();
+export async function testWebhook(url?: string, options: { dryRun?: boolean } = {}): Promise<void> {
+  const config = await loadWebhookConfig(undefined, { dryRun: options.dryRun });
 
   const endpoints = url
     ? config.endpoints.filter((ep) => ep.url === url)
     : config.endpoints;
 
+  if (options.dryRun) {
+    log.info(`[dry-run] Would send a test webhook to ${endpoints.length} endpoint(s).`);
+    return;
+  }
+
   if (endpoints.length === 0) {
     log.warn('No webhook endpoints configured.');
     return;