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test-the-test SKILL.md skillA

test-the-test from ezra144israel/governed-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add ezra144israel/governed-agent-skills/test-the-test@git:20260917.1684f08

Pins git:20260917.1684f08 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: ezra144israel/governed-agent-skills
Path: skills/test-the-test/SKILL.md
Versions recorded: 1
Latest version: git:20260917.1684f08, committed Sep 17, 2026
Size: 16,164 bytes
Repository stars: 24
License: MIT

Requires behavioral, failure-path, and durable-seam evidence for tests and review. Use when writing tests, reviewing test coverage, assessing behavioral test quality, or accepting high-risk behavior on test evidence.

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 the Test

## Purpose

Use this skill to write, evaluate, and verify tests that prove behavior rather
than implementation details.

## Core Rule

Tests prove behavior through public seams, not implementation internals.

A test that breaks when you rename an internal variable without changing behavior
is testing the wrong thing. A test that passes when the behavior is broken is
worse than no test at all.

## Vertical Slice Discipline

Write one test. Implement to pass it. Repeat.

For every behavior change with testable logic, write the smallest targeted test
and observe it fail for the missing behavior before changing the implementation.
Do not write a broad suite for imagined internals before learning from one
vertical slice.

```text
WRONG (horizontal):
  RED:   write all tests
  GREEN: write all implementation

RIGHT (vertical):
  RED → GREEN: one test → its implementation → repeat
```

For a behavior change in existing code:

```text
diagnose → write targeted behavior test → observe RED → implement narrow behavior → observe GREEN
```

For an extraction or refactor intended to preserve current behavior:

```text
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add ezra144israel/governed-agent-skills/test-the-test@sha256:baa33e9a4ecf34b3

The line at the top of this page pins the label git:20260917.1684f08, 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](https://markdownregistry.com/badge/art_x7zwvqrn3fslibvo.svg)](https://markdownregistry.com/a/art_x7zwvqrn3fslibvo)

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

Versions

The registry has recorded 1 version of this file, committed on Sep 17, 2026.

version	committed	commit	size	audit
git:20260917.1684f08 latest	2026-09-17	1684f08	16,164 B	A	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 (16164 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

ezra144israel/governed-agent-skills · 24 stars · license MIT · pushed 2026-10-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_x7zwvqrn3fslibvo
GET https://markdownregistry.com/api/v1/resolve?ref=ezra144israel/governed-agent-skills/test-the-test
GET https://markdownregistry.com/api/v1/blob/baa33e9a4ecf34b3abbcbb3c3a07eac4779d614934586e7369b96afa36df7655

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.