clean-architecture-testing SKILL.md skillA

clean-architecture-testing from sebastiendegodez/skraft-plugin is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sebastiendegodez/skraft-plugin/clean-architecture-testing@git:20261009.902d3e6

Pins git:20261009.902d3e6 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sebastiendegodez/skraft-plugin
Path
plugins/skraft-framework/skills/clean-architecture-testing/SKILL.md
Versions recorded
7
Latest version
git:20261009.902d3e6, committed Oct 9, 2026
First version recorded
Aug 6, 2026
Size
12,534 bytes
Repository stars
12
License
GPL-3.0

Use when it is unclear where a test belongs and what it is allowed to talk to — which test project and layer it goes in, whether it gets a real database, an in-memory fake, or no double at all, and whether a value object or a constructor is worth a test of its own. Also use when covering an adapter that calls an external API, a database or the file system, and when layer dependencies must be enforced by the build instead of by review.

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

# Clean Architecture Testing

## Overview

Defines **where** to test and **with which doubles** in a Clean Architecture solution. Language-agnostic. Does NOT redefine the TDD cycle — that is owned by `outside-in-tdd`.

**Core principle:** every test enters through **one boundary** and asserts at the next boundary. Choice of double follows the layer, not convenience.

**REQUIRED SUB-SKILL:** Use `outside-in-tdd` for the RED → SYNTHESIZE-GREEN → COMMIT cycle. This skill only routes you to the correct layer and doubles.

## The Iron Rule for Domain Tests

**Default = Application-level acceptance test.** Do NOT write Domain tests by default.

Extract a Domain test ONLY when a business rule:
- Has complex invariants or a large edge-case matrix, AND
- Is extracted into a reusable Policy / Domain Service / Specification.

**NEVER test directly:**
- Constructors (unless they enforce complex invariants)
- Simple value objects (covered by usage in Application acceptance tests)
- Getters / setters / DTOs / ViewModels / passive data structures

A test asserting `new PolicyNumber("abc").value == "abc"` is noise. It tests the compiler, not behavior.

## Test Project Organization
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sebastiendegodez/skraft-plugin/clean-architecture-testing@sha256:bdcabe99beb4a9c5

The line at the top of this page pins the label git:20261009.902d3e6, 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_gdqtog4hudcmt4vy.svg)](https://markdownregistry.com/a/art_gdqtog4hudcmt4vy)

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

Versions

The registry has recorded 7 versions of this file, between Aug 6, 2026 and Oct 9, 2026, about one every 11 days.

versioncommittedcommitsizeaudit
git:20261009.902d3e6 latest2026-10-09 902d3e6 12,534 BA view · diff
git:20261008.193dd3e2026-10-08 193dd3e 12,236 BA view · diff
git:20261002.4f6979e2026-10-02 4f6979e 12,001 BA view · diff
git:20261002.6c38cf92026-10-02 6c38cf9 12,902 BA view · diff
git:20261002.d745e452026-10-02 d745e45 12,814 BA view · diff
git:20260825.81319f42026-08-25 81319f4 12,174 BA view · diff
git:20260806.b506b652026-08-06 b506b65 12,113 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 (12534 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

sebastiendegodez/skraft-plugin · 12 stars · license GPL-3.0 · pushed 2026-10-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gdqtog4hudcmt4vy
GET https://markdownregistry.com/api/v1/resolve?ref=sebastiendegodez/skraft-plugin/clean-architecture-testing
GET https://markdownregistry.com/api/v1/blob/bdcabe99beb4a9c5cc635fb099f715a8287e6cd809a2e6a851bd537ee97e03a6

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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