P99 涨到 3 秒，平均值几乎没动
P99 从 80ms 涨到 3 秒，平均值只从 40 涨到 90 —— 你先问什么？
Copy the prompt, then pick a model. It plays the interviewer and asks you through it scene by scene instead of handing you the answer.
On a phone with the app installed, the system opens the app directly. Links cannot open external apps inside WeChat — open it in a browser first.
一个订单查询接口，P99 爆了但平均值几乎没动，错误率和 QPS 都正常。你要做的是提问：要监控、要日志、要拆维度，它按一份你看不见的真相回答，而且只回答你问到的。
这一份的诊断链最干净（理论最短 4 问），适合第一次做，用来熟悉这个形状。
现场里埋了几条会带偏人的观察 —— 同期确实有一次发布、确实有几个指标在涨。收尾时它会告诉你，你在每条伪线索上花了几问。
The move this one drills
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How to use this
It gives you the scene (what the service is, the symptom, when it started, the blast radius) and then goes quiet. You ask questions, request metrics, logs, packet captures, propose hypotheses — it answers from a truth you cannot see.
**It is not allowed to volunteer where to look next.** If you don't ask, it doesn't say — even if you circle for ten minutes. That's deliberate: in real life nobody stands next to you saying "maybe check the flame graph". Troubleshooting *is* the skill of knowing what to ask.
How to start
- Pick one, open it, copy the prompt.
- Paste it into a brand-new conversation.
- It gives you the scene and stops — **now it's your turn to speak.**
Four commands you can call out at any time
给个方向give me a direction, not the answer (counted in the tally)公布真相reveal the truth and wrap up换一个start over with a different incident复盘wrap up now and print the review card
Three traps
- Don't read the truth at the end first — that ruins the whole thing.
- Don't start by guessing the cause. Establish the scope first (how much, which part, when it started); scope tells you whether this is a code problem or an environment problem.
- Every scene has planted false leads: an unrelated deploy at the same time, metrics that are effects rather than causes, the textbook suspect waiting for you. The wrap-up tells you how many questions you spent on each.
Start with the P99 one — its diagnostic chain is the cleanest. Then "only some machines", whose lesson is the most reusable of all. Save the intermittent timeout for later: its answer lives outside your own system. The report mismatch needs no systems knowledge at all.
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