code-testing SKILL.md skillA
code-testing from dotnet/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dotnet/skills/code-testing@git:20261009.e191d40Pins git:20261009.e191d40 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dotnet/skills
- Path
plugins/dotnet-test/skills/code-testing/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261009.e191d40, committed Oct 9, 2026
- First version recorded
- Oct 8, 2026
- Size
- 22,754 bytes
- Repository stars
- 5,836
- License
- MIT
ALWAYS USE for test work that requires changes: write, add, generate, repair, or strengthen tests for existing code in xUnit, MSTest, NUnit, pytest, Vitest/Jest, Go, or another framework. Includes regression cases, failing or flaky tests, coverage-driven additions, and audit-then-fix requests. Focused work stays direct; broad or multi-stage work invokes test-engineer. DO NOT USE for only running tests, analysis-only audits, framework/platform migrations, a test blocked on a missing production…
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
# Code Testing Skill The reliable implicit entry point for generating, repairing, and strengthening tests. It handles focused work directly and invokes the public `test-engineer` agent for broad or multi-stage requests. ## Non-negotiable execution contract **Check pipeline ownership first.** If the active agent is `test-engineer` (including a plugin-qualified name such as `dotnet-test:test-engineer`), or the caller assigned you a phase of that pipeline, do not delegate to another generator. Continue the assigned work inline. This guard takes precedence over every broad-scope delegation instruction below, even if this skill was loaded automatically. Classify scope **before editing**: - **Broad** (a project/package-wide suite, or multiple production files/modules): create `research.md` and `plan.md` in a resolved non-stageable `<TESTAGENT_DIR>` before implementation, then `status.md` there after the final test-quality review. When `test-engineer` is available, invoke that named custom agent before implementing; do not replace it with a generic subagent carrying the same label or implement the broad request inline. If the state files are absent, the broad workflow is …
Read the whole file at its exact version.
How to install
mdr add dotnet/skills/code-testing@sha256:1a6adfcfe2d3be48The line at the top of this page pins the label git:20261009.e191d40, 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_2atpbi4odr4txiee)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Oct 8, 2026 and Oct 9, 2026, about one every day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261009.e191d40 latest | 2026-10-09 | e191d40 | 22,754 B | A | view · diff |
| git:20261008.a51399b | 2026-10-08 | a51399b | 22,425 B | A | 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 (22754 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
dotnet/skills · 5,836 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2atpbi4odr4txiee GET https://markdownregistry.com/api/v1/resolve?ref=dotnet/skills/code-testing GET https://markdownregistry.com/api/v1/blob/1a6adfcfe2d3be48c7ad2a72b1d1bd09991cfe5f5273708e58c88e84865fb332
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.