diff --git a/tools/probes/market-structure-capability.test.mjs b/tools/probes/market-structure-capability.test.mjs
index 5f70261..4ec4301 100644
--- a/tools/probes/market-structure-capability.test.mjs
+++ b/tools/probes/market-structure-capability.test.mjs
@@ -2,7 +2,7 @@ import assert from 'node:assert/strict';
 import test from 'node:test';
 import { spawnSync } from 'node:child_process';
 
-import { analyzeTdxRows } from './market-structure-capability.mjs';
+import { analyzeTdxRows, parseArguments } from './market-structure-capability.mjs';
 
 test('帮助信息声明固定的本机数据源边界', () => {
   const result = spawnSync(
@@ -28,3 +28,11 @@ test('TDX 列式序列在 Date 与 Amount 等长且分钟时间戳完整时标
     { dateAmountAligned: true, timestampsIntraday: true },
   );
 });
+
+test('探针拒绝非回环地址和错误端口', () => {
+  assert.throws(
+    () => parseArguments(['--base-url', 'http://192.168.1.10:8080']),
+    /127\.0\.0\.1:8080/,
+  );
+  assert.throws(() => parseArguments(['--base-url', 'http://127.0.0.1:9000']), /127\.0\.0\.1:8080/);
+});