hor-backend-testing SKILL.md skillA

hor-backend-testing from openreachtech/hora-skills-ort-renchan is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add openreachtech/hora-skills-ort-renchan/hor-backend-testing@git:20261016.ade0c6a

Pins git:20261016.ade0c6a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
openreachtech/hora-skills-ort-renchan
Path
kit/skills/hor-backend-testing/SKILL.md
Versions recorded
2
Latest version
git:20261016.ade0c6a, committed Oct 16, 2026
First version recorded
Sep 5, 2026
Size
7,684 bytes
Repository stars
32
License
Apache-2.0

Organize and run the backend repository's tests: where a test file goes (tests/__tests__ for tests that do not write to the database, tests/_orders for tests that do), how run order among DB-writing tests is guaranteed, how to run the whole suite or a single test, and the purity rules for tests and their doubles. Use whenever the user asks where to place a test, how to guarantee test order, how to run tests, or how to keep tests pure. Manual E2E verification is out of scope.

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

# Backend Testing

A skill for **implementing tests in a backend repository**: **where** each test file belongs, **how**
DB-writing tests are ordered so they do not corrupt each other, **how** to run them, and the
**purity** rules that keep a failing test meaningful. It governs test *organization and discipline* —
the *writing style* of an individual test (describe/test structure, case data, naming) follows the
project's own Jest conventions and is out of scope here.

> This skill states a **general, project-independent rule**, not one repo's current tree. The
> directory names (`tests/__tests__`, `tests/_orders`, `tests/mocks`, `tests/tools`) are the
> **recommended layout** — map them onto your project. Sample code follows the project's lint style
> (no semicolons, 2-space indent, trailing commas).

## Core principle: a test fails only when the code under test is wrong

A test must fail **only** because the code it exercises is wrong — not because another test ran
first, and not because the test itself contains untested logic. Two rules enforce that, and
everything below follows from them:
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add openreachtech/hora-skills-ort-renchan/hor-backend-testing@sha256:d26c592cf05c2164

The line at the top of this page pins the label git:20261016.ade0c6a, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_sn6yjugwjyegyoxx.svg)](https://markdownregistry.com/a/art_sn6yjugwjyegyoxx)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Sep 5, 2026 and Oct 16, 2026, about one every 40 days.

versioncommittedcommitsizeaudit
git:20261016.ade0c6a latest2026-10-16 ade0c6a 7,684 BA view · diff
git:20260905.5a049692026-09-05 5a04969 7,519 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (7684 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

openreachtech/hora-skills-ort-renchan · 32 stars · license Apache-2.0 · pushed 2026-10-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_sn6yjugwjyegyoxx
GET https://markdownregistry.com/api/v1/resolve?ref=openreachtech/hora-skills-ort-renchan/hor-backend-testing
GET https://markdownregistry.com/api/v1/blob/d26c592cf05c2164ad5bb848249615f670955bad5a873131b860369599ce4779

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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