improving-tests SKILL.md skillA
improving-tests from alexei-led/cc-thingz is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add alexei-led/cc-thingz/improving-tests@git:20261021.2f01d27Pins git:20261021.2f01d27 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- alexei-led/cc-thingz
- Path
src/skills/improving-tests/SKILL.md- Versions recorded
- 8
- Latest version
- git:20261021.2f01d27, committed Oct 21, 2026
- First version recorded
- Jun 27, 2026
- Size
- 4,238 bytes
- Repository stars
- 38
- License
- MIT
Improve test design, speed, and coverage with behavior-focused tests,.
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 Improvement Make tests catch real behavior regressions without blocking safe changes. Suite latency is a quality attribute; coverage is a signal, not the goal. The optional coding-posture plugin owns general test-first and refactoring procedure. This skill adds test-design and language-specific guidance; do not load both merely to repeat a checklist. Without write access, return proposed changes (file, change, reason) instead of applying them. Read the reference for each language in scope; it covers test patterns and suite speed. Use the matching `writing-<lang>` skill for toolchain commands. - C#: `references/csharp.md` - Go: `references/go.md` - Java/Kotlin: `references/java-kotlin.md` - Python: `references/python.md` - Rust: `references/rust.md` - TypeScript/JavaScript: `references/typescript.md` - Browser, Playwright, HTMX: `references/web.md` ## Modes Choose the mode from the request. Ask only when the choice changes the scope: - `review`: find weak, duplicate, brittle, missing, slow, or flaky tests. - `refactor`: simplify tests without changing covered behavior. - `coverage`: add tests for uncovered business behavior and error paths. …
Read the whole file at its exact version.
How to install
mdr add alexei-led/cc-thingz/improving-tests@sha256:2045aea3f640f1a2The line at the top of this page pins the label git:20261021.2f01d27, 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_3nidyujpbiz7nbgj)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 8 versions of this file, between Jun 27, 2026 and Oct 21, 2026, about one every 17 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261021.2f01d27 latest | 2026-10-21 | 2f01d27 | 4,238 B | A | view · diff |
| git:20260929.69685c3 | 2026-09-29 | 69685c3 | 4,206 B | A | view · diff |
| git:20260928.d0a85d1 | 2026-09-28 | d0a85d1 | 4,258 B | A | view · diff |
| git:20260716.29b4d22 | 2026-07-16 | 29b4d22 | 7,947 B | A | view · diff |
| git:20260702.b086cc7 | 2026-07-02 | b086cc7 | 7,950 B | B | view · diff |
| git:20260627.b14ceca | 2026-06-27 | b14ceca | 8,386 B | B | view · diff |
| git:20260627.3f70af5 | 2026-06-27 | 3f70af5 | 8,195 B | B | view · diff |
| git:20260627.a4cca8d | 2026-06-27 | a4cca8d | 8,102 B | B | view |
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 (4238 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
alexei-led/cc-thingz · 38 stars · license MIT · pushed 2026-10-25 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_3nidyujpbiz7nbgj GET https://markdownregistry.com/api/v1/resolve?ref=alexei-led/cc-thingz/improving-tests GET https://markdownregistry.com/api/v1/blob/2045aea3f640f1a262e4e4be2283b41b0b4351a71ae54cae49a5cf554b6ff8df
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.