check-understanding SKILL.md skillA
check-understanding from cluster1900/ai-engineering-from-scratch-zh is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cluster1900/ai-engineering-from-scratch-zh/check-understanding@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cluster1900/ai-engineering-from-scratch-zh
- Path
skills/check-understanding/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0.0, committed Oct 8, 2026
- First version recorded
- Oct 8, 2026
- Size
- 8,211 bytes
- Repository stars
- 14
- License
- MIT
Phase quiz for AI Engineering from Scratch. Trigger with "quiz me", "test phase", "check my understanding", "do I know phase 3", or `/check-understanding <phase>`.
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
# Check Understanding Test your knowledge of a completed phase from the AI Engineering from Scratch course. ## Activation This skill activates when the user says things like: - `/check-understanding 3` or `/check-understanding deep-learning` - "quiz me on phase 2" - "test phase 1" - "check my understanding of transformers" - "do I know phase 3" - "am I ready for the next phase" ## Input Accepts a phase number (0-19) or a phase name as argument. If no argument is provided, ask the user which phase they want to be tested on by listing all 20 phases. ## Phase Map Map the argument to the correct phase directory under `phases/`: | Input | Directory | Phase Name | |-------|-----------|------------| | 0, setup, tooling | `00-setup-and-tooling` | Setup & Tooling | | 1, math, math-foundations | `01-math-foundations` | Math Foundations | | 2, ml, ml-fundamentals | `02-ml-fundamentals` | ML Fundamentals | | 3, deep-learning, dl | `03-deep-learning-core` | Deep Learning Core | | 4, cv, computer-vision, vision | `04-computer-vision` | Computer Vision | | 5, nlp | `05-nlp-foundations-to-advanced` | NLP -- Foundations to Advanced | …
Read the whole file at its exact version.
How to install
mdr add cluster1900/ai-engineering-from-scratch-zh/check-understanding@sha256:3ce4576cd89b1f4bThe line at the top of this page pins the label v1.0.0, 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.
[](https://markdownregistry.com/a/art_5fprtsg3pvd4wgvu)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Oct 8, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-10-08 | 71f5604 | 8,211 B | A | view · diff |
| v1.0.0 | 2026-10-08 | c74aa9d | 8,205 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8211 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
cluster1900/ai-engineering-from-scratch-zh · 14 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5fprtsg3pvd4wgvu GET https://markdownregistry.com/api/v1/resolve?ref=cluster1900/ai-engineering-from-scratch-zh/check-understanding GET https://markdownregistry.com/api/v1/blob/3ce4576cd89b1f4b1b1e3ef5c600cb8a1575dd132ec3cd5af76847bc8cbac20f
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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