e2e-harness SKILL.md skillA
e2e-harness from jvoliveiran/constellation-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jvoliveiran/constellation-harness/e2e-harness@git:20260703.a1c7a3fPins git:20260703.a1c7a3f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jvoliveiran/constellation-harness
- Path
plugins/constellation-stack-service/skills/e2e-harness/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260703.a1c7a3f, committed Jul 3, 2026
- Size
- 4,464 bytes
- Repository stars
- 10
- License
- MIT
Running and writing end-to-end tests in a constellation-service–derived backend — dockerized test infra, .env.test, jest e2e config, supertest GraphQL patterns, and auth in test mode.
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
# E2E Test Harness ## Scope Apply this skill when running, writing, or debugging e2e tests (`test/*.e2e-spec.ts`) in a project scaffolded from the **constellation-service** boilerplate. Unit tests (colocated `src/**/*.spec.ts`) need none of this — plain `npm run test`. ## Running e2e tests E2E tests hit a real Postgres and Redis, isolated from the dev stack: ```bash npm run test:e2e:up # docker compose -f docker-compose.test.yml up -d --wait npm run test:e2e # DOTENV_CONFIG_PATH=.env.test jest --runInBand ... --config ./test/jest-e2e.json npm run test:e2e:down # tears down AND wipes volumes (-v) ``` Test infra facts: - **Offset ports** — Postgres on `5433`, Redis on `6380` — so the dev stack (`npm run dev:up`, ports 5432/6379) can stay running. Don't "fix" connection errors by pointing tests at the dev ports. - Postgres uses **tmpfs** — no persistence; every `up` starts clean. State that must exist is created by the specs (factories/seeds), never assumed. …
Read the whole file at its exact version.
How to install
mdr add jvoliveiran/constellation-harness/e2e-harness@sha256:cecc2da39668791eThe line at the top of this page pins the label git:20260703.a1c7a3f, 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_ex62iyhlk7gdsu5a)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 3, 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 (4464 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
jvoliveiran/constellation-harness · 10 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ex62iyhlk7gdsu5a GET https://markdownregistry.com/api/v1/resolve?ref=jvoliveiran/constellation-harness/e2e-harness GET https://markdownregistry.com/api/v1/blob/cecc2da39668791ec8b6b6f2cc2f3437d8945496fb4efd392cfbf0b324920e80
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.