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scaffold-exercises

vinvcn/mattpocock-skills-zh-cn

Scaffold exercise directory structures with sections, problems, solutions, and explainers that pass linting.

What is scaffold-exercises?

Creates properly-structured exercise directories for course content with automatic validation. Use this when setting up new course sections, creating exercise stubs, or organizing educational materials that need to pass the ai-hero-cli linter.

  • Generates exercise directory hierarchies with sections (XX-name) and exercises (XX.YY-name) following naming conventions
  • Creates stub readme.md files for problem/, solution/, and explainer/ variants with minimal required content
  • Validates directory structure and content against linting rules (non-empty readmes, no broken links, required main.ts files)
  • Supports moving and renaming exercises while preserving git history using git mv
  • Handles multiple exercise variants (problem, solution, explainer) with flexible subfolder combinations
  • Runs pnpm ai-hero-cli internal lint to verify structure before committing

How to install scaffold-exercises

npx skills add https://github.com/vinvcn/mattpocock-skills-zh-cn --skill scaffold-exercises
Prerequisites
  • pnpm installed and available in PATH
  • ai-hero-cli accessible via pnpm (pnpm ai-hero-cli internal lint command)
  • Git repository initialized in the project root
  • exercises/ directory exists or will be created
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How to use scaffold-exercises

  1. 1.Parse your exercise plan to extract section names, exercise names, and variant types (problem/solution/explainer)
  2. 2.Run the skill with your plan to create all required directories using mkdir -p
  3. 3.Verify that stub readme.md files are generated in each variant subfolder with title and description
  4. 4.Execute pnpm ai-hero-cli internal lint to validate the structure
  5. 5.Fix any lint errors (missing readmes, broken links, etc.) and re-run lint until passing
  6. 6.Commit the scaffolded structure with git commit

Use cases

Good for
  • Scaffold a new course section with multiple exercises from a structured plan
  • Create exercise stubs for a TypeScript course with problem/solution/explainer variants
  • Reorganize and renumber existing exercises while maintaining git history
  • Set up a single exercise with multiple learning paths (conceptual explainer + hands-on problem)
  • Validate that an exercise directory meets all linting requirements before publishing
Who it's for
  • Course creators and instructors building educational content
  • Technical educators structuring TypeScript or programming exercises
  • Content teams organizing multi-variant learning materials
  • Developers maintaining ai-hero-cli compatible exercise repositories

scaffold-exercises FAQ

What's the default variant when creating exercise stubs?

The default is explainer/ unless your plan specifies other variants like problem/ or solution/.

Do I need main.ts files for stub exercises?

No, readme-only exercises are acceptable for stubs. main.ts is only required if the subfolder contains code.

How do I rename or move exercises without losing git history?

Use git mv instead of mv to rename directories, update numeric prefixes to maintain order, then re-run lint.

What does the linter check for?

Non-empty readmes, no broken links, proper subfolder structure (at least problem/, explainer/, or explainer.1/), no .gitkeep or speaker-notes.md files, and main.ts files where needed.

Can I have multiple explainer variants?

Yes, the linter accepts explainer/ or explainer.1/, explainer.2/, etc. for multiple conceptual variants.

Full instructions (SKILL.md)

Source of truth, from vinvcn/mattpocock-skills-zh-cn.


name: scaffold-exercises description: 创建包含 sections、problems、solutions 和 explainers 的 exercise directory structures,并确保通过 linting。Use when user wants to scaffold exercises, create exercise stubs, or set up a new course section.

Scaffold Exercises

创建能通过 pnpm ai-hero-cli internal lint 的 exercise directory structures,然后用 git commit 提交。

Directory naming

  • Sectionsexercises/ 下的 XX-section-name/(例如 01-retrieval-skill-building
  • Exercises:section 下的 XX.YY-exercise-name/(例如 01.03-retrieval-with-bm25
  • Section number = XX,exercise number = XX.YY
  • Names 使用 dash-case(小写、连字符)

Exercise variants

每个 exercise 至少需要这些 subfolders 中的一个:

  • problem/ — student workspace,包含 TODOs
  • solution/ — reference implementation
  • explainer/ — conceptual material,不含 TODOs

创建 stub 时,除非 plan 指定其他 variant,否则默认使用 explainer/

Required files

每个 subfolder(problem/solution/explainer/)都需要一个 readme.md,要求:

  • 非空(必须有真实内容,即使只有一行 title 也可以)
  • 没有 broken links

创建 stub 时,生成带 title 和 description 的最小 readme:

# Exercise Title

Description here

如果 subfolder 有 code,还需要 main.ts(>1 行)。但对 stubs 来说,readme-only exercise 可以接受。

Workflow

  1. Parse the plan — 提取 section names、exercise names 和 variant types
  2. Create directories — 对每个 path 执行 mkdir -p
  3. Create stub readmes — 每个 variant folder 一个带 title 的 readme.md
  4. Run lint — 执行 pnpm ai-hero-cli internal lint 验证
  5. Fix any errors — 迭代直到 lint 通过

Lint rules summary

linter(pnpm ai-hero-cli internal lint)检查:

  • 每个 exercise 有 subfolders(problem/solution/explainer/
  • 至少存在 problem/explainer/explainer.1/ 之一
  • primary subfolder 中存在非空 readme.md
  • 没有 .gitkeep files
  • 没有 speaker-notes.md files
  • readmes 中没有 broken links
  • readmes 中没有 pnpm run exercise commands
  • 除非是 readme-only,否则每个 subfolder 都需要 main.ts

Moving/renaming exercises

重新编号或移动 exercises 时:

  1. 使用 git mv(不是 mv)重命名 directories,保留 git history
  2. 更新 numeric prefix 以维持顺序
  3. 移动后重新运行 lint

Example:

git mv exercises/01-retrieval/01.03-embeddings exercises/01-retrieval/01.04-embeddings

Example: stubbing from a plan

给定这样的 plan:

Section 05: Memory Skill Building
- 05.01 Introduction to Memory
- 05.02 Short-term Memory (explainer + problem + solution)
- 05.03 Long-term Memory

创建:

mkdir -p exercises/05-memory-skill-building/05.01-introduction-to-memory/explainer
mkdir -p exercises/05-memory-skill-building/05.02-short-term-memory/{explainer,problem,solution}
mkdir -p exercises/05-memory-skill-building/05.03-long-term-memory/explainer

然后创建 readme stubs:

exercises/05-memory-skill-building/05.01-introduction-to-memory/explainer/readme.md -> "# Introduction to Memory"
exercises/05-memory-skill-building/05.02-short-term-memory/explainer/readme.md -> "# Short-term Memory"
exercises/05-memory-skill-building/05.02-short-term-memory/problem/readme.md -> "# Short-term Memory"
exercises/05-memory-skill-building/05.02-short-term-memory/solution/readme.md -> "# Short-term Memory"
exercises/05-memory-skill-building/05.03-long-term-memory/explainer/readme.md -> "# Long-term Memory"