tdd SKILL.md skillC
tdd from chrisreddington/flight-school is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add chrisreddington/flight-school/tdd@git:20260524.78cd692Pins git:20260524.78cd692 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 14 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- chrisreddington/flight-school
- Path
.github/skills/tdd/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260524.78cd692, committed May 24, 2026
- First version recorded
- May 23, 2026
- Size
- 12,507 bytes
- Repository stars
- 30
- License
- MIT
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
# TDD Skill ## Overview Test-Driven Development (TDD) is a tight, behaviour-first development loop: 1. **Red** — write a failing test that describes the next behaviour you want. 2. **Green** — write the smallest amount of production code that makes the test pass. 3. **Refactor** — improve the internal structure of the code (and the test) without changing observable behaviour. The just-written test is your safety net. You repeat the loop one small behaviour at a time. Each cycle is typically seconds to a few minutes — not hours. **Why TDD matters in this codebase**: - **Regression safety** — every behaviour ships with a test that prevents it from silently breaking later. This matters most for security-sensitive code (`src/lib/security/`), multi-tenant isolation, and rate limiting. - **Design feedback** — if a test is painful to write, the design is usually wrong (too many collaborators, hidden globals, time-coupled state). TDD surfaces those problems before the production code calcifies around them. - **Documentation** — the test file is the executable specification. New contributors read `*.test.ts` next to a module to understand what it actually guarantees. …
Read the whole file at its exact version.
How to install
mdr add chrisreddington/flight-school/tdd@sha256:7d91f3c9d15d715aThe line at the top of this page pins the label git:20260524.78cd692, 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_xzvywest44mjrlxl)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between May 23, 2026 and May 24, 2026, about one every day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260524.78cd692 latest | 2026-05-24 | 78cd692 | 12,507 B | C | view · diff |
| git:20260523.deb156a | 2026-05-23 | deb156a | 12,280 B | C | view |
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12507 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
chrisreddington/flight-school · 30 stars · license MIT · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xzvywest44mjrlxl GET https://markdownregistry.com/api/v1/resolve?ref=chrisreddington/flight-school/tdd GET https://markdownregistry.com/api/v1/blob/7d91f3c9d15d715a67154df3bc94fc3f0aaf96c5068f78bd6f7ef35a5bb2f9ef
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.
More from chrisreddington/flight-school
Every file in chrisreddington/flight-school