test-driven-development SKILL.md skillA
test-driven-development from a5c-ai/babysitter is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add a5c-ai/babysitter/test-driven-development@git:20260601.da7723aPins git:20260601.da7723a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- a5c-ai/babysitter
- Path
library/methodologies/cc10x/skills/test-driven-development/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260601.da7723a, committed Jun 1, 2026
- First version recorded
- Mar 25, 2026
- Size
- 1,512 bytes
- Repository stars
- 1,891
- License
- MIT
Strict RED-GREEN-REFACTOR cycle enforcement. Tests are never skipped or deferred. Run mode only, never watch mode. Exit code evidence mandatory.
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
## Non-Negotiable Rules - Always use run mode (`CI=true npm test` or `--run` flag) - NEVER use watch mode (prevents hanging processes) - Use timeout guards (`timeout 60s`) as backup - Record exit codes as evidence at each phase - If tests fail 3 consecutive times in GREEN, report failure status - Never skip RED phase (failing test must exist before implementation) - Never defer tests to "later" -- TDD means tests first ## Scope Discipline - If implementation requires >3 file changes, flag for scope review - Architectural choices require user approval unless pre-approved in plan - New dependencies require user approval ## When to Use - Every feature implementation in BUILD workflow - Every bug fix in DEBUG workflow (regression test) ## Agents Used - `component-builder` (primary consumer) - `bug-investigator` (regression tests)
Read the whole file at its exact version.
How to install
mdr add a5c-ai/babysitter/test-driven-development@sha256:95a11c9ea167ea72The line at the top of this page pins the label git:20260601.da7723a, 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_r67w7hamoo3cod7k)
8 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 25, 2026 and Jun 1, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260601.da7723a latest | 2026-06-01 | da7723a | 1,512 B | A | view · diff |
| git:20260507.9f5be95 | 2026-05-07 | 9f5be95 | 1,544 B | A | view · diff |
| git:20260507.8dfdcb4 | 2026-05-07 | 8dfdcb4 | 1,539 B | C | view · diff |
| git:20260507.56f011d | 2026-05-07 | 56f011d | 1,649 B | A | view · diff |
| git:20260325.a6b3a88 | 2026-03-25 | a6b3a88 | 1,554 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 (1512 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
a5c-ai/babysitter · 1,891 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_r67w7hamoo3cod7k GET https://markdownregistry.com/api/v1/resolve?ref=a5c-ai/babysitter/test-driven-development GET https://markdownregistry.com/api/v1/blob/95a11c9ea167ea724fc11f06e5144ef858a89446ad7e32bf6a4a87bc759e770f
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 a5c-ai/babysitter
Every file in a5c-ai/babysitter