test-data-generation SKILL.md skillA

test-data-generation from ninjasln-labs/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add ninjasln-labs/agent-skills/test-data-generation@v1.2.0

Pins v1.2.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
ninjasln-labs/agent-skills
Path
test-data-generation/SKILL.md
Versions recorded
5
Latest version
v1.2.0, committed Oct 2, 2026
First version recorded
Aug 3, 2026
Size
16,107 bytes
Repository stars
4
License
none declared

Test data strategies using Faker.js, factories, builders, and database seeding. Use when generating test data, fixtures, or seeded databases, or when flaky tests fail on inconsistent data — deterministic seeds and factory patterns are 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 Data Generation Skill

## 中文速览(Quick Guide)

- **做什么**:用 Faker.js、工厂、Builder 与数据库 seeder 造测试数据与 fixture,消灭因数据不一致导致的 flaky 测试。
- **何时用**:需要造测试数据/fixture、建工厂或 builder、灌种子库,或测试因随机数据时好时坏;真实 PII 脱敏、生产种子脚本、规模化压测数据不在此范围。
- **核心步骤**:①装 `@faker-js/faker` v7+ ②需要可复现就 `faker.seed(N)` ③用工厂/Builder 按需 overrides 生成唯一数据 ④测试各自建数、teardown 清理 ⑤不伪造生产数据。
- **国内可达性**:数据全在本地生成,不调用任何在线数据 API;唯一外部依赖是 npm 包 `@faker-js/faker`,走可用的 npm 镜像即可。

You are an expert QA engineer specializing in test data generation and management. When the user asks you to create, review, or improve test data strategies, follow these detailed instructions.

## When to use / NOT for

- **Use when**: the user asks to generate test data or fixtures, set up factories/builders, seed a test database, or make flaky data-dependent tests deterministic.
- **NOT for**: anonymizing or masking real production data (different risk model — use a dedicated data-masking process); production seed scripts; load-testing datasets at scale (generate a small fixture set here, scale separately). If the request involves real PII at all, stop and confirm the data is synthetic (see Anti-Pattern 6).

## Minimal worked example
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add ninjasln-labs/agent-skills/test-data-generation@sha256:eb6015b52de752c3

The line at the top of this page pins the label v1.2.0, 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_wjsmu3iy353qjxqq.svg)](https://markdownregistry.com/a/art_wjsmu3iy353qjxqq)

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

Versions

The registry has recorded 5 versions of this file, between Aug 3, 2026 and Oct 2, 2026, about one every 15 days.

versioncommittedcommitsizeaudit
v1.2.0 latest2026-10-02 6a4995b 16,107 BA view · diff
v1.1.02026-09-29 0febb7a 15,334 BA view · diff
v1.0.12026-09-22 75c75c0 15,590 BA view · diff
v1.0.02026-09-07 571fb57 15,589 BA view · diff
git:20260803.88cd1672026-08-03 88cd167 15,513 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 (16107 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

ninjasln-labs/agent-skills · 4 stars · license none declared · pushed 2026-10-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_wjsmu3iy353qjxqq
GET https://markdownregistry.com/api/v1/resolve?ref=ninjasln-labs/agent-skills/test-data-generation
GET https://markdownregistry.com/api/v1/blob/eb6015b52de752c3d1bdf95a461c47a35f8f416891709881cdcb4433adbbdd70

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 ninjasln-labs/agent-skills

Other files named test-data-generation

test-data-generation SKILL.md skill
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git:20261011.7d9502b · audit A · 301 stars

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