Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add muyuhill/100books-to-skills --skill mom-testgit clone --depth 1 https://github.com/muyuhill/100books-to-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/muyuhill/100books-to-skills/mom-test)<a href="https://agentmods.dev/skills/muyuhill/100books-to-skills/mom-test"><img src="https://agentmods.dev/badge/skills/muyuhill/100books-to-skills/mom-test/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/muyuhill/100books-to-skills/mom-test"><img src="https://agentmods.dev/badge/skills/muyuhill/100books-to-skills/mom-test.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00059 | $0.00483 |
| Opus 5 | $0.00030 | $0.00242 |
| Sonnet 5 | $0.00012 | $0.00097 |
| Haiku 4.5 | $0.00006 | $0.00048 |
Grade A, and why
mom-test scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
The Mom Test — 客户访谈的正确姿势
你妈会对你说「这是个好主意」——不是因为她真这么想，是因为她爱你。不要问「你会买吗」——你会被撒谎。
Rob Fitzpatrick 教你做不被骗的客户访谈。
三条铁律
1. 谈论他们的生活，而不是你的想法
- ✘ 「如果我做一个 X 产品，你会用吗？」（诱导性问题）
- ✔ 「你最近一次遇到 Y 问题是什么时候？你怎么解决的？」
2. 问过去的具体事实，不问未来的假设意见
- ✘ 「你愿意付多少钱？」
- ✔ 「你上次为了解决这个问题花了多少钱？」
未来意见 = 假的。过去行为 = 真的。
3. 少说多听
你说的越多，他们越会附和。保持沉默，让他们填满空白。
四个危险信号
| 信号 | 他们说什么 | 真实含义 |
|---|---|---|
| 恭维 | 「这个想法挺好的」 | 我不想伤害你 |
| 假设 | 「我肯定会用」 | 我现在不会付钱 |
| 模糊 | 「可能以后会需要」 | 不需要 |
| 推荐 | 「你应该跟 XX 谈」 | 我不感兴趣，但不想拒绝你 |
一句话总结
客户访谈的目的不是确认你的想法是对的——是找出你的想法哪里错了。最好的问题都以「你上一次……」开头。
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 52 lines · 59 tokens per session scan A ee977bc7cba7
mom-test is a skill published in the GitHub repository muyuhill/100books-to-skills (12 stars, last pushed 2mo ago), licensed MIT. It adds 59 tokens to every session and 483 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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