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 cabbage2000-lab/textbook-writer-skills --skill textbook-outlinegit clone --depth 1 https://github.com/cabbage2000-lab/textbook-writer-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/cabbage2000-lab/textbook-writer-skills/textbook-outline)<a href="https://agentmods.dev/skills/cabbage2000-lab/textbook-writer-skills/textbook-outline"><img src="https://agentmods.dev/badge/skills/cabbage2000-lab/textbook-writer-skills/textbook-outline/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/cabbage2000-lab/textbook-writer-skills/textbook-outline"><img src="https://agentmods.dev/badge/skills/cabbage2000-lab/textbook-writer-skills/textbook-outline.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00129 | $0.03699 |
| Opus 5.5 | $0.00052 | $0.01480 |
| Sonnet 5.5 | $0.00026 | $0.00740 |
| Haiku 4.5 | $0.00013 | $0.00370 |
Grade A, and why
textbook-outline 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.
textbook-outline
以 UbD 逆向设计完成教材的阶段 1–3：教学定位 → 预期结果设计（核心 gate）→ 评估与章节设计（次要 gate），产出 00-教材设计.md。本 skill 是"先想清楚学生该带走什么，再倒推章节和例题"的落地执行者。
何时不触发
- 写章节正文（用 textbook-chapter）
- 生成例题/习题（用 textbook-exercises）
- 单篇教程的大纲（用 tutorial-writer）
两种调用模式
- 被 textbook 调度（常规）：输入为
{教材项目目录, 教材名}；产出写入该目录，阶段 1 判定出的学科档案与两个 gate 的确认结果回报主 skill（.progress.json由主 skill 维护，本 skill 不碰）。 - 独立触发：先用一轮提问确认教材名与落盘目录（默认
./<教材名>/），后续流程完全相同，产出00-教材设计.md；不建.progress.json——那是主 skill 的职责。
交接契约、落盘布局、进度打印与 gate 停点格式的权威定义见 ../textbook/references/handoff-contract.md，下文简称"契约文档"。本 skill 的进度行 ▶ 阶段 N/3 是子 skill 内层标尺（契约文档第 5 节：N/M 中 M 为当前 skill 自身的阶段总数）；被调度时全局的 ▶ 阶段 N/5 行由主 skill 打印，两级并存。
作者带来已有讲义、笔记或课程标准时，额外按 ../textbook/references/source-material-workflow.md 建索引并按章映射；没有素材时保持原提问轮数与产出结构。
阶段 1/3：教学定位确认
打印进度：▶ 阶段 1/3：教学定位确认
用 AskUserQuestion 一轮收集四项（对应契约的前四项；第五项 学科档案 由学科判定得出，不问作者）：
- 学科：具体到分支（如"线性代数"而非"数学"）。用户触发时若已说明，此项不再问。
- 读者认知起点：零基础 / 有先修（注明先修什么）
- 教材深度：入门 / 进阶
- 篇幅规模：6–8 章 / 8–12 章 / 12 章以上
若当前环境没有 AskUserQuestion 工具，降级为编号提问并等待文本回复：
请回答以下问题（回复格式如 "1 线性代数 2a 3a 4b"）：
1. 教材学科（请具体到分支）？
2. 读者认知起点？ a) 零基础 b) 有先修（请注明）
3. 教材深度？ a) 入门 b) 进阶
4. 篇幅规模？ a) 6–8 章 b) 8–12 章 c) 12 章以上
按语义宽松解析回复，能定位到各项即可；无法判断时只就有歧义的一项追问。
判定学科档案（契约第五项）：按学科到 ../textbook/references/subject-profile-spec.md 第 5 节索引表定位档案 id。判定一次、全流程沿用，后续阶段不重判。
- 索引里有匹配项 → 取该 id；
- 找不到匹配项（如历史/哲学/文学等答案取决于论证与立场的学科）→ 按该文档第 7 节处理：向作者说明「本学科暂无专属档案，将按
<最接近的 id>档案处理」并指出已知差异（哪些题型在该档案里没有对应验证手段、章内段义是否需要调整），由作者决定继续或改学科范围，不得静默套用。作者决定继续则照该档案执行，学科档案记录实际使用的 id。
档案有前置输入要求时，追加一轮材料提问：判定出的档案第 1 节若写有「前置输入要求」（humanities、economics 有，stem 没有），在写盘前追加一轮提问，按该档案点名的类别向作者索要材料。这一轮之所以必要：四问里第 1 问才问到学科，问完才判定得出档案，届时才知道本学科要不要材料——所以它只能发生在第一轮之后。
这一轮不是 gate：作者答"没有"、答不全、或直接跳过，一律照常放行进入阶段 2，绝不等待确认。它换来的不是许可，是让作者在动笔前就知道代价。两条出口都要落盘：
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 8d ago Changed · +7 lines · -5 tokens per session 37e587bc9437
- 1mo ago Changed · +13 lines · +30 tokens per session 6534f80abe47
- 1mo ago First seen · 112 lines · 104 tokens per session scan A 3ab26cedd0d5
textbook-outline is a skill published in the GitHub repository cabbage2000-lab/textbook-writer-skills (39 stars, last pushed 9d ago), licensed MIT. It adds 129 tokens to every session and 3,699 once invoked, about $0.0005 per session on Opus 5.5. 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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