Home / ezra144israel / governed-agent-skills · skills/test-the-test/SKILL.md · GitHub

test-the-test skillA

Name: test-the-test
Author: ezra144israel

test-the-test is agent-read markdown (skill) from ezra144israel/governed-agent-skills: 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..

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.

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

Latest version

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

Exact content

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

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](https://markdownregistry.com/badge/art_x7zwvqrn3fslibvo.svg)](https://markdownregistry.com/a/art_x7zwvqrn3fslibvo)

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Versions

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. 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 (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 · 22 stars · license MIT · pushed 2026-09-18 · 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

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