test-preserving-refactor SKILL.md skillA
test-preserving-refactor from yeaight7/agent-powerups is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add yeaight7/agent-powerups/test-preserving-refactor@git:20260606.d9d0aabPins git:20260606.d9d0aab in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- yeaight7/agent-powerups
- Path
plugins/codebase-maintenance/skills/test-preserving-refactor/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260606.d9d0aab, committed Jun 6, 2026
- First version recorded
- May 2, 2026
- Size
- 2,516 bytes
- Repository stars
- 8
- License
- Apache-2.0
Use when code needs restructuring and observable behavior must stay unchanged, with existing tests kept green at every step.
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
## Purpose Refactoring is only safe if it is backed by tests. Work in a strict loop — green baseline, one structural change, immediate re-run, revert on red — so you are never trapped in an uncompilable state. ## When to Use - Code needs restructuring (extract/inline/move) without behavior change - A previous refactor spiraled into a broken, hard-to-recover state - Tests covering the target area exist or can be run ## Inputs - The target area and the command that runs just its tests ## Workflow 1. **Run tests first.** Before touching any code, run the tests covering the target area. They MUST be green. If they are red, stop and fix the tests (or the code) first: ```bash npx jest path/to/target # or: pytest tests/test_target.py -q ``` 2. **Small steps.** Make one structural change at a time (e.g., extract a method). 3. **Run tests immediately** after the single structural change. The per-change loop: ```bash # repeat per structural change: edit -> test -> commit (green) | revert (red) npx jest path/to/target && git commit -am "refactor: extract X" || git checkout -- . ``` …
Read the whole file at its exact version.
How to install
mdr add yeaight7/agent-powerups/test-preserving-refactor@sha256:b1a2f6d4b2c1e7abThe line at the top of this page pins the label git:20260606.d9d0aab, 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_s24kqzv7ct3gb6ab)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 2, 2026 and Jun 6, 2026, about one every 17 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260606.d9d0aab latest | 2026-06-06 | d9d0aab | 2,516 B | A | view · diff |
| git:20260502.ff9d243 | 2026-05-02 | ff9d243 | 959 B | A | view · diff |
| git:20260502.1267503 | 2026-05-02 | 1267503 | 145 B | B | view |
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 (2516 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
yeaight7/agent-powerups · 8 stars · license Apache-2.0 · pushed 2026-09-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_s24kqzv7ct3gb6ab GET https://markdownregistry.com/api/v1/resolve?ref=yeaight7/agent-powerups/test-preserving-refactor GET https://markdownregistry.com/api/v1/blob/b1a2f6d4b2c1e7ab3be838ee981c13329c859e0d95f04a1aebab2675cc5d2dd8
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.