testing SKILL.md skillA
testing from live-codes/livecodes is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add live-codes/livecodes/testing@git:20260914.daf8be4Pins git:20260914.daf8be4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- live-codes/livecodes
- Path
.agents/skills/livecodes/testing/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260914.daf8be4, committed Sep 14, 2026
- First version recorded
- Mar 29, 2026
- Size
- 7,592 bytes
- Repository stars
- 1,526
- License
- MIT
Write and run automated tests with Jest and Testing Library in the browser. Import code from script editor, use watch mode, and run tests programmatically. Load this skill when writing tests for playground code or running tests via SDK.
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
# LiveCodes — Write and Run Tests
LiveCodes includes Jest and Testing Library for automated testing in the browser. Tests run against the result page in real-time.
## Setup
```javascript
import { createPlayground } from 'livecodes';
// Project with tests
createPlayground('#container', {
template: 'jest', // Jest starter template
params: { tests: 'open' }, // Show tests panel
});
// Custom test configuration
createPlayground('#container', {
config: {
activeEditor: 'script',
script: {
language: 'javascript',
content: `
export function add(a, b) {
return a + b;
}
export function greet(name) {
return 'Hello, ' + name;
}
`,
},
tests: {
language: 'javascript',
content: `
import { add, greet } from './script';
describe('add', () => {
test('adds numbers', () => {
expect(add(1, 2)).toBe(3);
});
test('handles negatives', () => {
expect(add(-1, -2)).toBe(-3);
});
});
describe('greet', () => {
test('greets by name', () => {
expect(greet('World')).toBe('Hello, World');
});
});
`,
},
},
params: { tests: 'open' },
});
```
## Core Patterns
### Test exports from script editor
```javascript
…Read the whole file at its exact version.
How to install
mdr add live-codes/livecodes/testing@sha256:b98d4f958fdb41beThe line at the top of this page pins the label git:20260914.daf8be4, 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_v2locej7ufxlesk7)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Mar 29, 2026 and Sep 14, 2026, about one every 169 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260914.daf8be4 latest | 2026-09-14 | daf8be4 | 7,592 B | A | view · diff |
| git:20260329.bca496c | 2026-03-29 | bca496c | 7,586 B | A | 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 (7592 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
live-codes/livecodes · 1,526 stars · license MIT · pushed 2026-10-24 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_v2locej7ufxlesk7 GET https://markdownregistry.com/api/v1/resolve?ref=live-codes/livecodes/testing GET https://markdownregistry.com/api/v1/blob/b98d4f958fdb41beba0c09debf79f1a9a7e1696686a77f4fd42f1e3a42137219
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.
More from live-codes/livecodes
Every file in live-codes/livecodes