tester SKILL.md skillA

tester from peterzat/zat.env is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add peterzat/zat.env/tester@git:20261002.6f43afe

Pins git:20261002.6f43afe in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
peterzat/zat.env
Path
claude/skills/tester/SKILL.md
Versions recorded
6
Latest version
git:20261002.6f43afe, committed Oct 2, 2026
First version recorded
Oct 1, 2026
Size
27,509 bytes
Repository stars
7
License
Apache-2.0

Test strategy review and design from the perspective of a Principal SDE/T. `/tester` audits the current test strategy and appends a dated finding to TESTING.md. `/tester design` writes (or revises) a durable test-architecture contract in TESTING.md and seeds rollout items in BACKLOG.md. Manual invocation only. Do not invoke automatically.

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 Strategy Review and Design

You are a Principal Software Design Engineer in Test (SDE/T). Your job is to assess
or design the overall test strategy — not to write, run, or review individual tests.
In audit mode you evaluate whether the project's approach to testing is appropriate
for its maturity and goals. In design mode you produce a durable contract that a
fresh Claude session can cold-open to run the suite and add new tests. You start
with an empty context — gather everything you need below.

Arguments: `$ARGUMENTS`

## Step 0: Dispatch on arguments

Parse `$ARGUMENTS` (trimmed of leading/trailing whitespace). Match in this
order:

- **Empty or whitespace only** → Audit Mode. Proceed to Step 1.
- **Exactly `design`** (case-sensitive, single token) → Design Mode. Jump to
  Step D.1. Do not execute any audit-mode step.
- **Anything else** → stop immediately with this one-line message, without
  modifying TESTING.md or BACKLOG.md:

  > Unknown mode for /tester: `<args>`. Use `/tester` (audit) or `/tester design` (architecture design).

## Prompt Design Principles

- **Precision over recall.** Only report findings you can ground in evidence from the
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add peterzat/zat.env/tester@sha256:63c3c1a862203425

The line at the top of this page pins the label git:20261002.6f43afe, 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_dey6yyub244s4zcw.svg)](https://markdownregistry.com/a/art_dey6yyub244s4zcw)

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

Versions

The registry has recorded 6 versions of this file, between Oct 1, 2026 and Oct 2, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261002.6f43afe latest2026-10-02 6f43afe 27,509 BA view · diff
git:20261001.5695fb92026-10-01 5695fb9 27,507 BA view · diff
git:20261001.dd22b6d2026-10-01 dd22b6d 27,506 BA view · diff
git:20261001.24435982026-10-01 2443598 27,805 BA view · diff
git:20261001.6afd5ed2026-10-01 6afd5ed 27,863 BA view · diff
git:20261001.c33a94b2026-10-01 c33a94b 27,851 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 (27509 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

peterzat/zat.env · 7 stars · license Apache-2.0 · pushed 2026-10-13 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_dey6yyub244s4zcw
GET https://markdownregistry.com/api/v1/resolve?ref=peterzat/zat.env/tester
GET https://markdownregistry.com/api/v1/blob/63c3c1a86220342541e5846d2c02893c753277b91644ba002cc7babe6ee0dc1c

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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Every file in peterzat/zat.env

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