Test Environment Manager
Manage test environments with Docker Compose, Testcontainers, and environment isolation
- Type
- Plugin
- Repository
- jeremylongshore/tons-of-skills-marketplace
- GitHub stars
- 2.8k
- License
- MIT
- Repo last updated
- Sep 27, 2026
- Version
- 1.25.0
- Author
- Claude Code Plugin Hub
What Test Environment Manager is
Test Environment Manager is a plugin published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”
A plugin is a package that bundles skills, slash commands, subagents, hooks, and MCP connectors so they install together. Plugins are plain files with a manifest at .claude-plugin/plugin.json, and they work in both Claude Code and Claude Cowork.
Installing Test Environment Manager adds everything it ships in one step. Connectors inside a plugin still need to be connected separately, and hooks and subagents only run in Cowork and Claude Code, not in regular chat.
How to install Test Environment Manager
Claude Code
- Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace
- Install the plugin: claude plugin install test-environment-manager@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
- Restart the session if the new skills or commands don't appear straight away.
Claude Cowork
- Open Customize → Plugins and choose Add marketplace.
- Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub).
- Find Test Environment Manager in the list, click Install, then connect any connectors it needs from its Connectors tab.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from plugins/testing/test-environment-manager/.claude-plugin/plugin.json, shared under the repository's MIT license. Read the full file on GitHub.
Manage test environments with Docker Compose, Testcontainers, and environment isolation.
Installation
/plugin install test-environment-manager@claude-code-plugins-plusUsage
/env-setupFeatures
- Docker Compose test infrastructure
- Testcontainers integration
- Environment variable management
- Automatic cleanup
- Service health checks
License
MIT
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Test Environment Manager?
Test Environment Manager is a plugin for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Manage test environments with Docker Compose, Testcontainers, and environment isolation
How do I install Test Environment Manager in Claude Code?
Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace Install the plugin: claude plugin install test-environment-manager@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json. Restart the session if the new skills or commands don't appear straight away.
Can I use Test Environment Manager in Claude Cowork?
Open Customize → Plugins and choose Add marketplace. Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub). Find Test Environment Manager in the list, click Install, then connect any connectors it needs from its Connectors tab.
Is Test Environment Manager safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
Similar resources
- Pipeline Optimize Analyze and optimize slow CI/CD pipelines Slash Command · jeremylongshore/tons-of-skills-marketplace
- Plane Plane is a team behavior observatory — synthesize Plane API data into observations about how teams actually behave under pressure (cycle velocity vs. plan, ownership churn, reviewer gate strength, priority drift, cross-project load). Reads from the live mcp__plane MCP server. Plugin · jeremylongshore/tons-of-skills-marketplace
- Plan Week Plan the week with priorities, risks, and success criteria Slash Command · jeremylongshore/tons-of-skills-marketplace
- Plot Selects chart types and encodings, designs EDA workflows, and audits existing visualizations for misleading charts, accessibility failures, and wrong library choices. Use when choosing how to visualize a dataset, building a dashboard spec, or catching bad charts in a notebook. Trigger with \"design this visualization\", \"audit our charts\". Subagent · jeremylongshore/tons-of-skills-marketplace
- Test Orchestrator Orchestrate complex test workflows with dependencies, parallel execution, and smart test selection Plugin · jeremylongshore/tons-of-skills-marketplace
- Test Doubles Generator Generate mocks, stubs, spies, and fakes for unit testing with Jest, Sinon, and test frameworks Plugin · jeremylongshore/tons-of-skills-marketplace
- Test Report Generator Generate comprehensive test reports with coverage, trends, and stakeholder-friendly formats Plugin · jeremylongshore/tons-of-skills-marketplace
- Test Data Generator Generate realistic test data including users, products, orders, and custom schemas for comprehensive testing Plugin · jeremylongshore/tons-of-skills-marketplace