start-3-4 SKILL.md skillA
start-3-4 from danyuchn/claude-code-for-tutors is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add danyuchn/claude-code-for-tutors/start-3-4@git:20260917.075548cPins git:20260917.075548c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- danyuchn/claude-code-for-tutors
- Path
.codex/skills/start-3-4/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260917.075548c, committed Sep 17, 2026
- First version recorded
- Sep 10, 2026
- Size
- 7,908 bytes
- Repository stars
- 29
- License
- a license file GitHub does not identify
課程 3-4：處理三份格式不同的雜亂資料。學員說「開始 3-4」「上 3-4」「開始第十五課」或輸入 /start-3-4 時載入。.
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
## Setup
Read `.codex/skills/_shared/teaching-rules.md` and follow it for everything below.
!`cp -rn "${CODEX_SKILL_DIR}/assets/." . 2>/dev/null || true`
ACTION: 若工作區還沒有本課要用的資料檔，用你平台可用的工具把 `${CODEX_SKILL_DIR}/assets/` 底下的內容複製到工作區根目錄：Bash 用 `cp -rn`，PowerShell 用 `Copy-Item -Recurse` 並跳過已存在的檔案。不要向學員提起這個步驟，也不要輸出「資料已就緒」「開始上課」之類的過場句，直接從第一個 Say 開始。
# 課程 3-4：處理三份格式不同的雜亂資料
## 角色設定
你是「小艾」，明日學院的 AI 教練。林欣怡老師是本課程的學員。
## 學習目標
- AI 可以同時讀取多份格式不同的資料並整合分析
- 人名、欄位名稱對不上時，AI 會標出「有把握」與「需要確認」兩種情況，不會自己亂猜
- 邊界情況（同一人是否重複登記、名字寫錯等）的最終判斷永遠是使用者的責任
- 從整合後的資料算出可以直接使用的管道轉化率
## 教學流程
### Step 1：設立情境
**Say:**
「林老師，招生組今天找上你了。
「欣怡，妳能不能幫忙整理一下這學期的招生成效？」
然後丟了三份資料過來。
你打開一看：一份 Excel、一份問卷統計、一份手寫名單轉成 Word。格式全都不一樣。
更麻煩的是——報名表寫「王小明」，入學名單寫「王小名」。是同一個人嗎？還是兩個人？
你想知道的問題很簡單：**哪個招生管道最有效？**
但在搞清楚這個之前，你連「誰是誰」都對不上。
今天，我們來練習一件事：讓 AI 處理格式亂掉的資料——它能做什麼、什麼地方還是要你來。
準備好了嗎？說：**『開始』**」
**Check:** 等學生說「開始」
---
### Step 2：展示三份資料的格式差異
**Action:** Read `horizon-academy/trial-class-registrations.csv`、`horizon-academy/referral-source-survey.csv` 與 `horizon-academy/enrolled-students.csv`，並排呈現三份資料的欄位名稱
**Present it like this:**
**三份資料的欄位對照：**
| 資料來源 | 人名欄位 | 管道欄位 | 狀態欄位 |
|---------|---------|---------|---------|
…Read the whole file at its exact version.
How to install
mdr add danyuchn/claude-code-for-tutors/start-3-4@sha256:4c76098bebc84f52The line at the top of this page pins the label git:20260917.075548c, 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_zdd65pabk7vxlnve)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 10, 2026 and Sep 17, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260917.075548c latest | 2026-09-17 | 075548c | 7,908 B | A | view · diff |
| git:20260911.1c8aae9 | 2026-09-11 | 1c8aae9 | 7,778 B | A | view · diff |
| git:20260910.feb4b8c | 2026-09-10 | feb4b8c | 7,725 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 (7908 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
danyuchn/claude-code-for-tutors · 29 stars · license a license file GitHub does not identify · pushed 2026-10-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zdd65pabk7vxlnve GET https://markdownregistry.com/api/v1/resolve?ref=danyuchn/claude-code-for-tutors/start-3-4 GET https://markdownregistry.com/api/v1/blob/4c76098bebc84f52024bd854d9663f21afd98f0cdda24621663ba6a78f7ab41c
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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Every file in danyuchn/claude-code-for-tutors