test-strategy SKILL.md skillA

test-strategy from frnkgns/gentjinskills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add frnkgns/gentjinskills/test-strategy@git:20261007.d578084

Pins git:20261007.d578084 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
frnkgns/gentjinskills
Path
skills/test-strategy/SKILL.md
Versions recorded
3
Latest version
git:20261007.d578084, committed Oct 7, 2026
First version recorded
Sep 26, 2026
Size
5,517 bytes
Repository stars
7
License
none declared

Decide what should be tested, at which seam, and at which level before or during implementation. Use when implementing a meaningful feature, creating or changing tests, building a behavior test-first, touching payment/auth/data-integrity logic, when a review finds insufficient verification, or when the user asks what needs testing. For an unexplained failure or regression, load `systematic-debugging` first to find the cause, then this skill to cover the fix.

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

## Principle

Risk-driven, not coverage-driven. Do not optimize for test count or arbitrary coverage percentages.

## Seams

A seam is the public boundary you observe behavior through, without reaching inside the implementation. Tests live at seams, never against internals.

**Name the seams before writing any test, and confirm them.** Everything cannot be tested, so agreeing the seams first is how effort lands on critical paths and complex logic instead of scattered edge cases. For each proposed seam, state in one line what it catches and what it misses.

Prefer existing seams. Where the shape of an interface is itself in question, that is a design question for `architecture-review`, not a testing decision.

## What makes a test worth keeping

A good test reads like a specification and survives refactoring, because it does not care about internal structure. Code can change entirely; the test should not break when behavior is unchanged.

Expected values must come from an independent source of truth: a known-good literal, a worked example, or the stated requirement.

## Anti-patterns
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add frnkgns/gentjinskills/test-strategy@sha256:282dfd16d2fa200f

The line at the top of this page pins the label git:20261007.d578084, 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_xguve2alhwa76rvk.svg)](https://markdownregistry.com/a/art_xguve2alhwa76rvk)

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

Versions

The registry has recorded 3 versions of this file, between Sep 26, 2026 and Oct 7, 2026, about one every 5 days.

versioncommittedcommitsizeaudit
git:20261007.d578084 latest2026-10-07 d578084 5,517 BA view · diff
git:20260928.a1422232026-09-28 a142223 2,657 BA view · diff
git:20260926.3185b842026-09-26 3185b84 2,549 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 (5517 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

frnkgns/gentjinskills · 7 stars · license none declared · pushed 2026-10-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xguve2alhwa76rvk
GET https://markdownregistry.com/api/v1/resolve?ref=frnkgns/gentjinskills/test-strategy
GET https://markdownregistry.com/api/v1/blob/282dfd16d2fa200f781612ecaeefe273e0e343e8e22702aaa292282e2eeea62a

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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