tdd SKILL.md skillA
tdd from jellydn/my-ai-tools is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jellydn/my-ai-tools/tdd@git:20261104.30b60dePins git:20261104.30b60de in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jellydn/my-ai-tools
- Path
skills/tdd/SKILL.md- Versions recorded
- 8
- Latest version
- git:20261104.30b60de, committed Nov 4, 2026
- First version recorded
- Apr 5, 2026
- Size
- 5,639 bytes
- Repository stars
- 128
- License
- MIT
Guide through the Red-Green-Refactor cycle for test-driven development.
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
# Test-Driven Development (TDD) Guides you through the complete TDD workflow with Red-Green-Refactor cycle. ## Usage `/tdd <ACTION> [ARGUMENTS]` ## Actions - **start <FEATURE>** - Initialize TDD session for a feature - **red <TEST_NAME>** - Create failing test (Red phase) - **green** - Run tests and implement code (Green phase) - **refactor** - Guide refactoring process (Refactor phase) - **cycle <FEATURE>** - Run complete Red-Green-Refactor cycle - **watch** - Start test watcher for continuous feedback - **status** - Show current test status and next steps ## TDD Principles ### The Red-Green-Refactor Cycle 1. **Red**: Write a failing test that defines desired behavior 2. **Green**: Write minimal code to make the test pass 3. **Refactor**: Improve code quality while keeping tests green ### Best Practices - Write tests first - Tests define the interface and behavior - Small steps - Make tiny, incremental changes - Fast feedback - Run tests frequently for immediate validation - Clean code - Refactor regularly to maintain quality - One concept per test - Keep tests focused and atomic - AAA Pattern - Structure tests as Arrange, Act, Assert …
Read the whole file at its exact version.
How to install
mdr add jellydn/my-ai-tools/tdd@sha256:4dea0558dae95da8The line at the top of this page pins the label git:20261104.30b60de, 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_d7no7o3sbdilikga)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 8 versions of this file, between Apr 5, 2026 and Nov 4, 2026, about one every 30 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261104.30b60de latest | 2026-11-04 | 30b60de | 5,639 B | A | view · diff |
| git:20261007.163951e | 2026-10-07 | 163951e | 4,595 B | A | view · diff |
| git:20261006.f663cbc | 2026-10-06 | f663cbc | 4,306 B | A | view · diff |
| git:20260708.83bb509 | 2026-07-08 | 83bb509 | 3,157 B | A | view · diff |
| git:20260703.cc97b91 | 2026-07-03 | cc97b91 | 3,252 B | A | view · diff |
| git:20260629.a5d98dc | 2026-06-29 | a5d98dc | 3,180 B | A | view · diff |
| git:20260510.4e86848 | 2026-05-10 | 4e86848 | 3,173 B | A | view · diff |
| git:20260405.08fada9 | 2026-04-05 | 08fada9 | 3,181 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 (5639 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
jellydn/my-ai-tools · 128 stars · license MIT · pushed 2026-11-09 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_d7no7o3sbdilikga GET https://markdownregistry.com/api/v1/resolve?ref=jellydn/my-ai-tools/tdd GET https://markdownregistry.com/api/v1/blob/4dea0558dae95da885f6dd8a2c98e126e9228acda91b881ac307d8d786d13ab5
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 jellydn/my-ai-tools
Every file in jellydn/my-ai-tools