shadow-testing SKILL.md skillA
shadow-testing from rysweet/amplihack-rs is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add rysweet/amplihack-rs/shadow-testing@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
- rysweet/amplihack-rs
- Path
amplifier-bundle/skills/shadow-testing/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed May 4, 2026
- Size
- 25,318 bytes
- Repository stars
- 11
- License
- none declared
Creates isolated container environments for testing local uncommitted changes before pushing. Use when testing library changes, multi-repo coordination, or validating "works on my machine" → "works in CI". Provides git bundle snapshots, embedded git server, selective URL rewriting, and package manager cache isolation. Works with any coding agent via standalone CLI, shell scripts, or Docker Compose.
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
# Shadow Testing Skill ## Purpose [LEVEL 1] Shadow testing creates **isolated container environments** where you can test local uncommitted changes without affecting your host system or pushing to remote repositories. **Key Principle**: Test exactly what's on your machine (including uncommitted changes) in a clean, isolated environment that mirrors CI. ## When to Use This Skill [LEVEL 1] ### Perfect For - **Pre-Push Validation**: Test changes before committing/pushing - **Multi-Repo Coordination**: Validate changes across multiple repositories work together - **Clean-State Testing**: "Does it work on a fresh machine?" - **Library Development**: Test library changes with dependent projects - **CI Parity**: See what CI will see before pushing - **Destructive Testing**: Tests that modify system state won't affect host ### Use This Skill When - Making breaking changes to a library others depend on - Coordinating changes across multiple repositories - Unsure if your changes will work in CI - Need to test with specific dependency versions - Want to verify install/setup procedures work - Testing changes that require clean environment state ### Don't Use This Skill When …
Read the whole file at its exact version.
How to install
mdr add rysweet/amplihack-rs/shadow-testing@sha256:2b50b6819b5c5b42The 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_bg7fisx6u7usveht)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 4, 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 (25318 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
rysweet/amplihack-rs · 11 stars · license none declared · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bg7fisx6u7usveht GET https://markdownregistry.com/api/v1/resolve?ref=rysweet/amplihack-rs/shadow-testing GET https://markdownregistry.com/api/v1/blob/2b50b6819b5c5b422ea789e2028dd989275d683613438af3c9b698b0bb39d302
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.