launchdarkly-testing SKILL.md skillA
launchdarkly-testing from testland/qa is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add testland/qa/launchdarkly-testing@git:20260813.0ecb572Pins git:20260813.0ecb572 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- testland/qa
- Path
plugins/qa-feature-flags/skills/launchdarkly-testing/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260813.0ecb572, committed Aug 13, 2026
- First version recorded
- Jul 18, 2026
- Size
- 5,904 bytes
- Repository stars
- 11
- License
- MIT
Wraps LaunchDarkly server-side SDK testing patterns: TestData data source for hermetic tests (no network), file-based data source for fixture-driven tests, flag override patterns (TestData.update for per-test flag values), and assignment-integrity tests. Use when writing tests for code that uses LaunchDarkly flags; to decide which flag combinations those tests should cover in the first place, see feature-flag-test-matrix-reference.
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
# launchdarkly-testing
## Overview
LaunchDarkly's server-side SDK exposes a `TestData` data source
that lets tests configure flag values without any network call -
the canonical hermetic-test pattern. Per
[launchdarkly.com/docs/sdk](https://launchdarkly.com/docs/sdk),
TestData replaces the production data source; everything else
about the SDK (variation evaluation, targeting rules, default
handling) runs the real code paths.
## When to use
- Unit / integration tests for code that calls
`client.variation()` / `client.boolVariation()`.
- Tests asserting on targeting-rule behaviour (segment matching,
percentage rollout).
- Assignment-integrity tests per `ab-test-validity-checklist`.
## Authoring
### Install
```bash
npm install --save-dev launchdarkly-node-server-sdk
pip install launchdarkly-server-sdk
```
### Initialize with TestData
```typescript
import * as LaunchDarkly from 'launchdarkly-node-server-sdk';
const td = LaunchDarkly.TestData.dataSource();
const client = LaunchDarkly.init('sdk-test-key', {
updateProcessor: td,
sendEvents: false, // No event uploads in tests
});
await client.waitForInitialization();
…Read the whole file at its exact version.
How to install
mdr add testland/qa/launchdarkly-testing@sha256:5d039b04f61ca437The line at the top of this page pins the label git:20260813.0ecb572, 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_a7ksvpiknrff53od)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 18, 2026 and Aug 13, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260813.0ecb572 latest | 2026-08-13 | 0ecb572 | 5,904 B | A | view · diff |
| git:20260807.3cfd225 | 2026-08-07 | 3cfd225 | 5,921 B | A | view · diff |
| git:20260724.d4db756 | 2026-07-24 | d4db756 | 5,573 B | A | view · diff |
| git:20260719.53f73b7 | 2026-07-19 | 53f73b7 | 5,721 B | A | view · diff |
| git:20260718.ab29907 | 2026-07-18 | ab29907 | 5,814 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 (5904 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
testland/qa · 11 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_a7ksvpiknrff53od GET https://markdownregistry.com/api/v1/resolve?ref=testland/qa/launchdarkly-testing GET https://markdownregistry.com/api/v1/blob/5d039b04f61ca43708c6cbbd1f04d07b3fe755a96fa1570b713f5e80d83daf5d
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.