Home / dayfinggg / openai-codex-agent-skills · GitHub

testing SKILL.md skillA

testing from dayfinggg/openai-codex-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 dayfinggg/openai-codex-agent-skills/testing@git:20261105.e0d5bb2

Pins git:20261105.e0d5bb2 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: dayfinggg/openai-codex-agent-skills
Path: codex/skills/testing/SKILL.md
Versions recorded: 2
Latest version: git:20261105.e0d5bb2, committed Nov 5, 2026
First version recorded: Nov 5, 2026
Size: 6,486 bytes
Repository stars: 8
License: MIT

Selects and runs behavior checks, implements red-green tests, and verifies regressions. Use before writing or running any tests, when the user asks for tests, coverage, TDD, a failing test, or proof that a change works, with pytest, PHPUnit, unittest, node --test, go test, cargo test, vitest, or jest. Excludes benchmarking and standalone security audits.

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

1. Recover the requested behavior, defect evidence, affected callers, dependencies, and contracts before editing. Read project instructions, nearby tests, test configuration, manifests, lockfiles, and relevant CI commands. Read the local glossary and applicable ADRs when present. Identify the public boundary at which a wrong result is observable and what that boundary cannot prove.
2. Select the smallest check that can detect a plausible violation of each changed behavior. Reuse existing coverage before adding tests. Choose by the following rules, combining levels only when they observe different risks.

   - Use a unit test for deterministic local rules and transformations.
   - Use an integration test when correctness depends on real collaborating modules, persistence, serialization, or resource lifecycle.
   - Use a contract test for request, response, error, event, or compatibility guarantees at a producer-consumer boundary. A stub alone does not prove the producer honors it.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add dayfinggg/openai-codex-agent-skills/testing@sha256:985699cbcfcd6b31

The line at the top of this page pins the label git:20261105.e0d5bb2, 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_zkawntr5r3eivkqh.svg)](https://markdownregistry.com/a/art_zkawntr5r3eivkqh)

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

Versions

The registry has recorded 2 versions of this file, all committed on Nov 5, 2026.

version	committed	commit	size	audit
git:20261105.e0d5bb2 latest	2026-11-05	e0d5bb2	6,486 B	A	view · diff
git:20261105.39988c5	2026-11-05	39988c5	6,377 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 (6486 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

dayfinggg/openai-codex-agent-skills · 8 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_zkawntr5r3eivkqh
GET https://markdownregistry.com/api/v1/resolve?ref=dayfinggg/openai-codex-agent-skills/testing
GET https://markdownregistry.com/api/v1/blob/985699cbcfcd6b317f6732cb2c04c1847868c71bf80eda6338676ba03f34ee96

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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