Which package managers are supported?

It provides isolation and caching for popular tools including UV, Pip, npm, Cargo, and Go, preventing conflicts with your host system.

Does it work with uncommitted changes?

Yes, the skill creates Git bundle snapshots of your current working directory, ensuring that what you test is exactly what is currently on your disk.

How does it handle multiple repositories?

It uses Git URL rewriting and an embedded Gitea server to redirect specific repository clones to your local snapshots while letting others fetch from the real GitHub.

What is shadow testing?

Shadow testing creates a temporary, isolated container environment to test your local code changes, including uncommitted work, before you push to a remote repository.

Is Docker required to use this skill?

Yes, Shadow Testing requires either Docker or Podman to be installed and running on your system to create the isolated environments.

Shadow Testing

Name: Shadow Testing
Author: rysweet

byrysweet

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보안 및 테스팅

Creates isolated container environments to test local, uncommitted code changes across multiple repositories before pushing to CI.

Shadow Testing provides a safe, sandboxed environment to validate code changes exactly as they exist on your machine, including uncommitted work. By utilizing Git bundle snapshots and local URL rewriting via an embedded Gitea server, it mirrors CI environments to ensure "works on my machine" translates to "works in production." It is particularly effective for testing library changes against dependent projects and coordinating complex multi-repository updates without affecting your host system's state.

주요 기능

0127 GitHub stars

02Automatic Git bundle snapshots including uncommitted changes

03Package manager cache isolation for UV, npm, Pip, and Cargo

04Automatic API key and environment variable passthrough

05Selective Git URL rewriting to redirect specific repos to local snapshots

06Isolated Docker/Podman container environments for safe testing

사용 사례

01Ensuring local code changes will pass in CI environments (CI Parity)

02Coordinating and testing simultaneous changes across multiple repositories

03Validating breaking library changes against dependent applications before pushing

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add rysweet/amplihack shadow-testing

For use in Claude.ai and ChatGPT

Download Skill