lh-test-design SKILL.md skillA
lh-test-design from jrodrigopuca/local-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jrodrigopuca/local-agents/lh-test-design@v1.1Pins v1.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jrodrigopuca/local-agents
- Path
qa/skills/lh-test-design/SKILL.md- Versions recorded
- 1
- Latest version
- v1.1, committed Oct 14, 2026
- Size
- 4,324 bytes
- Repository stars
- 2
- License
- Apache-2.0
Judgment for writing and reviewing test code: what to test at which level, how to keep tests trustworthy, and how to audit an existing suite. Trigger: load when writing test code, reviewing a test suite, or deciding what automated coverage a feature needs.
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
## Critical Patterns ### 1. Test at the lowest level that can catch the bug The pyramid is an economics argument, not a dogma: unit tests are cheap, fast, and precise; E2E tests are expensive, slow, and vague about causes. Push each check DOWN: pure logic → unit; component contracts and DB queries → integration; and E2E only for the few journeys where the money is (login, checkout, the core loop) — testing through the UI what a unit test could catch is paying E2E prices for unit information. Inverted pyramids (everything E2E) fail slowly, flake often, and explain nothing. ### 2. Test behavior at the contract, not implementation guts A test that breaks when the code is refactored (behavior unchanged) is friction; a test that survives a bug is dead weight. Aim at the CONTRACT: given these inputs/state, this output/effect. Don't assert internal call sequences or private state — mock at boundaries you don't own (network, clock, randomness), keep real code running everywhere else. The question for every test: "if this fails, does it mean a USER-visible promise broke?" ### 3. Every test tells one story: arrange, act, assert …
Read the whole file at its exact version.
How to install
mdr add jrodrigopuca/local-agents/lh-test-design@sha256:19f28bbbda177d3dThe line at the top of this page pins the label v1.1, 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.
[](https://markdownregistry.com/a/art_n5wbyavqyklewkw3)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 14, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4324 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
jrodrigopuca/local-agents · 2 stars · license Apache-2.0 · pushed 2026-10-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_n5wbyavqyklewkw3 GET https://markdownregistry.com/api/v1/resolve?ref=jrodrigopuca/local-agents/lh-test-design GET https://markdownregistry.com/api/v1/blob/19f28bbbda177d3d32cd92cb652e5cff01e8cfdb312fb7929ff69a9f1929dde0
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.