Borrowing it
Nothing to install: this file belongs to cabbage2000-lab/textbook-writer-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/cabbage2000-lab/textbook-writer-skills/main/CLAUDE.mdgit 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/instructions/cabbage2000-lab/textbook-writer-skills/claude-md)<a href="https://agentmods.dev/instructions/cabbage2000-lab/textbook-writer-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/cabbage2000-lab/textbook-writer-skills/claude-md/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/instructions/cabbage2000-lab/textbook-writer-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/cabbage2000-lab/textbook-writer-skills/claude-md.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 | $0.04487 | $0.04487 |
| Opus 5 | $0.02243 | $0.02243 |
| Sonnet 5 | $0.00897 | $0.00897 |
| Haiku 4.5 | $0.00449 | $0.00449 |
Grade A, and why
textbook-writer-skills CLAUDE.md 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 5d 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 — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
仓库性质
这是一个 agent skills/plugin 仓库（目标宿主：Claude Code / Codex / WorkBuddy）：产品本身是 skills/ 下的 5 个 Markdown skill（"给模型看的程序"），没有传统应用代码。改一行指令就可能改变 skill 的运行行为，而结构校验和单元测试只能保证文件形态正确，行为质量必须靠 evals 真实运行来检验——这是本仓库三层防线设计的出发点。Python 只出现在质量保障脚本中（零第三方依赖，3.10+ 标准库）。
领域：以 UbD 逆向设计为内核的教材写作流水线（学科无关内核 + 可插拔学科档案；内置 stem、humanities、economics 三份档案，humanities 的大纲与单章两条路径已由 eval 7、8 实跑验证，economics 的 eval 9、10 待跑）。设计依据源自 PRD 与前期调研（本地 docs/ 目录留存，不纳入版本库）；版本库内可查的架构决策摘要见 docs/adr/。
常用命令
python3 scripts/validate_skills.py # ① 结构校验（skills 内容 + plugin 清单一致性 + 仓库健康）
python3 -m unittest discover -s tests # ② 单元测试（校验逻辑本身）
# 单跑一个测试
python3 -m unittest tests.test_validate_skills.ValidateSkillsTest.test_valid_skill_passes
# 本地试跑 skill：软链为项目级 skills，改动即时生效（.claude/ 已 gitignore）
mkdir -p .claude && ln -s ../skills .claude/skills
③ 第三道防线是行为测试（evals），无法自动化：在新开的会话中（Claude Code 为基线宿主，跨宿主复跑口径见 evals/README.md）输入 evals/evals.json 用例的 prompt 原文真实运行，对照 assertions 逐条客观判定（通过/不通过 + 产物证据），任何一条不通过即用例不通过，不许改断言迁就产出。运行产物放 evals/workspace/（已 gitignore，用例定义入库、运行产物不入库）。
架构
1 个主 skill + 3 个子 skill + 1 个独立辅助 skill 构成整体组合（跨 skill 以 ../<skill-name>/references/xxx.md 相对路径互引，需整体安装，不得引入仓库外依赖）：
textbook（orchestrator） 五阶段调度 + .progress.json 状态机（中断可续）
├─ textbook-outline 阶段 1–3：教学定位 → UbD 五件套(核心 gate) → 章节树+梯度(次要 gate)
├─ textbook-chapter 阶段 4：四段式单章写作（stem 档案：概念讲解→示范例题→引导练习→独立习题）
└─ textbook-exercises 被单章 skill 调用：三类题生成 + 每题验证（手段取自学科档案）
textbook-init（独立辅助） 不入调度链：动笔前规划并创建工作目录（可选 git 与 README 工作说明），产出交接给 textbook
skills/textbook/references/handoff-contract.md 是全项目唯一权威定义——阶段间交接契约、教材项目落盘布局、.progress.json 状态机与重入规则、进度打印/gate 停点格式、上下文隔离原则，全部以它为准。5 个 SKILL.md 一律引用它，不得各自重复定义；契约字段名上下游逐字一致，同义改写（如"章节树"写成"章节列表"）即破坏契约。
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.
- 5d ago Changed · +8 lines · +955 tokens per session 3c955c19531b
- 9d ago First seen · 109 lines · 3,532 tokens per session scan A 138caf3a2378
textbook-writer-skills CLAUDE.md is an instructions file published in the GitHub repository cabbage2000-lab/textbook-writer-skills (27 stars, last pushed 7d ago), licensed MIT. It adds 4,487 tokens to every session, about $0.0224 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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