›_ Claude Code Issues
Claude Code Issues / #35680

[BUG] AskUserQuestion 工具返回空答案导致交互式工作流异常

Resolved 💬 3 comments Opened Mar 18, 2026 by LinStan Closed Mar 21, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

问题摘要

AskUserQuestion 工具在被调用后，即使没有用户交互也会立即返回一个空的 answers: {} 对象，而不是阻塞等待用户响应。这导致交互式工作流无法正常工作。

---
环境信息

┌──────────────────┬─────────────────────┐
│ 项目 │ 值 │
├──────────────────┼─────────────────────┤
│ Claude Code 版本 │ 2.1.63 │
├──────────────────┼─────────────────────┤
│ 操作系统 │ macOS Darwin 24.6.0 │
├──────────────────┼─────────────────────┤
│ Shell │ zsh │
└──────────────────┴─────────────────────┘

---
关键日志证据

证据 1：空答案的立即返回

日志文件: ~/.claude/projects/-Users-nigu-Desktop-credit-portal-repo-V4/45d2f6bf-4853-4dea-80d8-0e73f0b90355.jsonl

// 第 22 行：Agent 调用 AskUserQuestion
{
"timestamp": "2026-03-18T05:47:20.609Z",
"message": {
"content": [{
"type": "tool_use",
"name": "AskUserQuestion",
"input": {
"questions": [{
"question": "当前分支为 master，建议分支为 ZMSUPER-0318_134713-eb826d，是否使用建议分支？",
"header": "分支选择",
"options": [...]
}]
}
}]
}
}

// 第 25 行：仅 88ms 后返回空答案
{
"timestamp": "2026-03-18T05:47:20.697Z", // 与调用时间仅差 88ms
"type": "user",
"message": {
"content": [{
"type": "tool_result",
"content": "User has answered your questions: . You can now continue with the user's answers in mind."
}]
},
"toolUseResult": {
"questions": [...],
"answers": {} // ← 空对象！用户根本没有时间做出选择
}
}

关键发现：

  • 调用时间：05:47:20.609Z
  • 返回时间：05:47:20.697Z
  • 时间差：仅 88 毫秒！ 用户根本不可能在这么短的时间内阅读问题并做出选择。

证据 2：多次调用均为空答案

┌──────────┬───────────────┬───────────────┬────────┬──────┐
│ 调用时间 │ 时间戳 │ 返回时间 │ 时间差 │ 答案 │
├──────────┼───────────────┼───────────────┼────────┼──────┤
│ 第1次 │ 05:47:20.609Z │ 05:47:20.697Z │ 88ms │ {} │
├──────────┼───────────────┼───────────────┼────────┼──────┤
│ 第2次 │ 05:47:26.541Z │ 05:47:26.623Z │ 82ms │ {} │
├──────────┼───────────────┼───────────────┼────────┼──────┤
│ 第3次 │ 05:47:29.889Z │ 05:47:29.996Z │ 107ms │ {} │
└──────────┴───────────────┴───────────────┴────────┴──────┘

证据 3：另一个会话 (26a6bf3b) 的相同问题

日志文件: ~/.claude/projects/-Users-nigu-Desktop-credit-portal-repo-V4/26a6bf3b-2f8d-4b53-8ec8-46d99d77078a.jsonl

{
"timestamp": "2026-03-18T05:44:20.229Z", // 调用
"message": { "content": [{ "name": "AskUserQuestion", ... }] }
}

{
"timestamp": "2026-03-18T05:44:20.348Z", // 返回，仅 119ms 后
"toolUseResult": {
"questions": [...],
"answers": {} // ← 再次是空对象
}
}

证据 4：用户主动取消时返回的错误信息

当用户主动点击取消时，返回的行为是正确的：

{
"type": "tool_result",
"content": "The user doesn't want to proceed with this tool use. The tool use was rejected...",
"is_error": true
}

这说明系统能够正确区分用户取消和用户不操作。

---
复现步骤

  1. 启动 Claude Code CLI
  2. 执行任何包含 AskUserQuestion 的技能或命令
  3. 不要进行任何操作（不点击任何选项）
  4. 观察返回结果

预期行为

  • 应该在 CLI 界面显示交互式选项面板
  • 应该阻塞等待用户点击选择
  • 返回的 answers 应该包含用户选择的选项

实际行为

  • 选项面板可能显示了（也可能没有）
  • 不等待用户操作，立即返回空 answers: {}
  • 返回时间与调用时间差小于 100ms

---
根因分析

根据日志分析，可能的原因：

  1. UI 渲染/事件绑定问题：
  • 选项面板可能没有正确渲染到终端
  • 或者渲染了但点击事件没有被正确监听
  1. 超时机制缺陷：
  • 可能存在一个非常短的超时（约 80-120ms）
  • 超时后自动返回空对象
  1. 并发问题：
  • AskUserQuestion 可能没有正确阻塞主线程
  • 导致立即返回而不等待 UI 交互

What Should Happen?

预期行为

  • 应该在 CLI 界面显示交互式选项面板
  • 应该阻塞等待用户点击选择
  • 返回的 answers 应该包含用户选择的选项

Error Messages/Logs

Steps to Reproduce

复现步骤

  1. 启动 Claude Code CLI
  2. 执行任何包含 AskUserQuestion 的技能或命令
  3. 不要进行任何操作（不点击任何选项）
  4. 观察返回结果

Claude Model

Other - GLM-5

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.63

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

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