This file is byte-identical to the first copy the registry indexed, one of 5 indexed copies. Same content hash, so the same checks give both the same grade.
scaffold-exercises from mambo-wang/codewiki-plus is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
Create exercise directory structures with sections, problems, solutions, and explainers that pass linting. Use when user wants to scaffold exercises, create exercise stubs, or set up a new course section.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Scaffold Exercises
Create exercise directory structures that pass `pnpm ai-hero-cli internal lint`, then commit with `git commit`.
## Directory naming
- **Sections**: `XX-section-name/` inside `exercises/` (e.g., `01-retrieval-skill-building`)
- **Exercises**: `XX.YY-exercise-name/` inside a section (e.g., `01.03-retrieval-with-bm25`)
- Section number = `XX`, exercise number = `XX.YY`
- Names are dash-case (lowercase, hyphens)
## Exercise variants
Each exercise needs at least one of these subfolders:
- `problem/` - student workspace with TODOs
- `solution/` - reference implementation
- `explainer/` - conceptual material, no TODOs
When stubbing, default to `explainer/` unless the plan specifies otherwise.
## Required files
Each subfolder (`problem/`, `solution/`, `explainer/`) needs a `readme.md` that:
- Is **not empty** (must have real content, even a single title line works)
- Has no broken links
When stubbing, create a minimal readme with a title and a description:
```md
# Exercise Title
Description here
```
If the subfolder has code, it also needs a `main.ts` (>1 line). But for stubs, a readme-only exercise is fine.
## Workflow
…
The line at the top of this page pins the label git:20260916.5a385b8, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_ebxqdn23wulqnb6x
GET https://markdownregistry.com/api/v1/resolve?ref=mambo-wang/codewiki-plus/scaffold-exercises
GET https://markdownregistry.com/api/v1/blob/75f5c9d771606fb9762f16522efc954df11c324f87148d8ff069bce166257de9
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