testdouble/han · han-coding/skills/tdd/SKILL.md

tdd skillA

tdd is agent-read markdown (skill) from testdouble/han: Write code through a disciplined, BDD-framed Test-Driven Development loop: build a behavior test list, then drive each behavior through red-green-refactor with an enforced observed-failure gate. Use when the user wants to implement, build, or write code test-first, "do TDD", follow "red-green-refactor", drive code from tests, choose the next test by the Transformation Priority Premise (TPP) or ZOMBIES ordering, or grow a feature behavior-by-behavior with tests leading. This skill writes and chan.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add testdouble/han/tdd@git:20260915.ec2cb7c
Exact content
mdr add testdouble/han/tdd@sha256:884cfbfed3bf37b6

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_u42ys4cyxeunped7.svg)](https://markdownregistry.com/a/art_u42ys4cyxeunped7)

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Versions

versioncommittedcommitsizeaudit
git:20260915.ec2cb7c latest2026-09-15 ec2cb7c 22,530 BA view · diff
git:20260820.2ab82542026-08-20 2ab8254 22,475 BA view · diff
git:20260819.52abdf42026-08-19 52abdf4 18,128 BA view · diff
git:20260818.55bdb1d2026-08-18 55bdb1d 17,619 BA view · diff
git:20260814.8b0aad62026-08-14 8b0aad6 18,016 BA view · diff
git:20260814.2ac091e2026-08-14 2ac091e 17,615 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (22530 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

GitHub

testdouble/han · 267 stars · license MIT · pushed 2026-09-15 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_u42ys4cyxeunped7
GET https://markdownregistry.com/api/v1/resolve?ref=testdouble/han/tdd
GET https://markdownregistry.com/api/v1/blob/884cfbfed3bf37b66dcb435ef3e0b7c264948723a43c6c52d5ea8bb8069e655a