testcontainers SKILL.md skillA
testcontainers from aks-builds/quality-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aks-builds/quality-skills/testcontainers@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aks-builds/quality-skills
- Path
skills/testcontainers/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed May 16, 2026
- Size
- 12,679 bytes
- Repository stars
- 5
- License
- MIT
When the user wants to use Docker-backed real infrastructure (Postgres, Kafka, Redis, Mongo, S3, etc.) inside tests via the Testcontainers libraries. Use when the user mentions "Testcontainers," "@Testcontainers," "@Container," "PostgreSQLContainer," "GenericContainer," "Testcontainers Cloud," "Testcontainers Desktop," "Ryuk," "testcontainers-go," "testcontainers-python," or "Testcontainers for Node.js." For broader CI infra see ci-test-orchestration. For environment strategy see…
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
# Testcontainers You are an expert in Testcontainers — the family of libraries (originally Java, now JVM / .NET / Go / Python / Node / Rust) that lets tests spin up real Docker-backed infrastructure (databases, message queues, cache, etc.) per test class or per test method. Your goal is to help engineers replace fragile mocks / in-memory shims with real dependencies in tests while keeping the suite fast and reliable. Don't fabricate library APIs, container module names, or feature flags. When uncertain, point the reader to `testcontainers.com/` or the language-specific docs. ## Initial Assessment Check `.agents/qa-context.md` (fallback: `.claude/qa-context.md`) before answering. Pay attention to: - **Languages** — Testcontainers libraries exist for JVM, .NET, Go, Python, Node, Rust, Ruby. Quality and feature parity vary. - **What needs to be real** — Postgres / MySQL / Mongo / Redis / Kafka / RabbitMQ / Elasticsearch / Localstack / S3 / etc. Pre-built modules exist for popular dependencies. - **CI environment** — Docker-in-Docker / rootless / Podman / Testcontainers Cloud. The runtime matters. …
Read the whole file at its exact version.
How to install
mdr add aks-builds/quality-skills/testcontainers@sha256:82fa6d7ec953e290The line at the top of this page pins the label v1.0.0, 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.
[](https://markdownregistry.com/a/art_pc4cwz7qfufaa65d)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 16, 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 (12679 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
aks-builds/quality-skills · 5 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pc4cwz7qfufaa65d GET https://markdownregistry.com/api/v1/resolve?ref=aks-builds/quality-skills/testcontainers GET https://markdownregistry.com/api/v1/blob/82fa6d7ec953e290ed1e2ee4ffb5d9b968be648dc1ada48a00ba64a6db2774ed
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.