Plugin · Claude Code · Testing

Testcontainers Claude Skills

testcontainers-claude-skills is a Claude Code plugin for the Ship phase that teaches agents to write multi-language integration tests using Docker Testcontainers.

by testcontainers · github.com/testcontainers/claude-skills

Guide agents to write reliable Docker-based integration tests with Testcontainers across Python, Go, .NET, and common data stores.

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Install

Add it to Claude Code

Install the plugin in Claude Code. One command, paste-ready.

Install the plugin
/plugin install testcontainers-claude-skills@testcontainers/claude-skills
Add to ClaudeUse the Agent APISkillselion is itself an MCP server - your agent can fetch this config directly.
Agent API

Built to be called by your agent

Skillselion is itself an MCP server. Your agent can pull this entry and a paste-ready install config straight from the API - no copy-paste.

Retrieve this entry with skillselion.get_details("plugin:testcontainers/claude-skills") and the paste-ready config with skillselion.get_install_config("plugin:testcontainers/claude-skills").

About

What it does

testcontainers-claude-skills is the public Claude Code plugin bundle from Testcontainers maintainers. Solo builders shipping APIs or services install it when they want agents to propose integration tests that spin real dependencies in Docker—databases, caches, and message queues—using idiomatic Testcontainers APIs. The single plugin encodes how to structure tests, manage container lifecycle, and avoid flaky CI setups across several languages noted in the catalog keywords. Canonical placement is ship testing because the outcome is confidence before release, though you often invoke the same guidance while building backend features or hardening infra scripts. For indie developers without a dedicated QA function, this turns containerized integration testing from tribal knowledge into repeatable agent instructions. It pairs naturally with backend build work: write the feature, then let the skill steer container-backed tests that fail when wiring—not just mocks—breaks.

Highlights

  • Official Testcontainers Claude skills repo with 1 plugin focused on integration testing
  • Patterns for Postgres, MySQL, MongoDB, Redis, SQL Server, Kafka, and RabbitMQ in disposable containers
  • Multi-language coverage: Python, Go, C#/.NET, Entity Framework, and Docker-centric workflows
  • Emphasizes reliable integration tests across services instead of brittle unit-only mocks

Why builders use it

Solo builders ship APIs with mocked databases and broken queue wiring because standing up real integration tests in Docker feels too heavy to document every time.

After adding the plugin, your agent follows Testcontainers patterns to spin real dependencies in tests across supported languages and message brokers.

At a glance

  • Type - Plugin in Testing.
  • Adoption - 0 installs, 12 stars, 0 votes.

FAQ

Who is testcontainers-claude-skills for?

It is for developers writing service-level tests who want Claude to apply official Testcontainers practices across Docker-backed databases and queues.

When should I use testcontainers-claude-skills?

Use it when you are adding or fixing integration tests before ship, especially when tests need real Postgres, Redis, Kafka, RabbitMQ, or SQL Server instances.

How do I add testcontainers-claude-skills to my agent?

Install the testcontainers/claude-skills Claude Code plugin, ensure Docker is available locally and in CI, then invoke the bundled skill while implementing tests in your stack’s Testcontainers library.

Discussion

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