dotnet-mstest

dotnet-mstest is a skill for Claude Code, Codex from Postpartum-genushyacinthus29/dotnet-skills. It costs 60 tokens per session (1,144 once invoked), scanned A, a copy of mstest, MIT.

A guide for writing, running, and repairing MSTest tests in .NET. MSTest is Microsoft's testing framework for tests marked with attributes such as TestClass and TestMethod.

In plain words
What is it for?
Use it to add or fix MSTest tests, data-driven tests, test commands, project configuration, CI settings, and migrations between .NET test runners.
Why use it?
It helps resolve test-project setup, runner, discovery, and migration problems. It also keeps the testing workflow aligned with the repository's MSTest style.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Good fit Use it to add or fix MSTest tests, data-driven tests, test commands, project configuration, CI settings, and migrations between .NET test runners.

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Install with agentmods
npx agentmods add skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mstest
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Postpartum-genushyacinthus29/dotnet-skills --skill dotnet-mstest
Clone the repo
git clone --depth 1 https://github.com/Postpartum-genushyacinthus29/dotnet-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for dotnet-mstest

README.md
[![agentmods](https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mstest/github.svg)](https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mstest)
Your own site
<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mstest"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mstest/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dotnet-mstest

Your own site · 80×15
<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mstest"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mstest.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,144 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 91% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00060 $0.01144
Opus 5 $0.00030 $0.00572
Sonnet 5 $0.00012 $0.00229
Haiku 4.5 $0.00006 $0.00114

Measured 9d ago against content hash 90f1af67217e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

dotnet-mstest scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

91% identical to mstest — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/dotnet-mstest/SKILL.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MSTest

Trigger On

  • the repo uses MSTest
  • you need to add, run, debug, or repair MSTest tests
  • the repo is moving between VSTest and Microsoft.Testing.Platform

Value

  • produce a concrete project delta: code, docs, config, tests, CI, or review artifact
  • reduce ambiguity through explicit planning, verification, and final validation skills
  • leave reusable project context so future tasks are faster and safer

Do Not Use For

  • xUnit projects
  • TUnit projects
  • generic test strategy with no MSTest-specific mechanics

Inputs

  • the nearest AGENTS.md
  • the test project file and package references
  • the active MSTest runner model

Quick Start

  1. Read the nearest AGENTS.md and confirm scope and constraints.
  2. Run this skill's Workflow through the Ralph Loop until outcomes are acceptable.
  3. Return the Required Result Format with concrete artifacts and verification evidence.

Workflow

  1. Detect the MSTest project style first:
    • MSTest.Sdk project SDK
    • MSTest meta-package
    • legacy package set with explicit Microsoft.NET.Test.Sdk
  2. Read the repo's real test command from AGENTS.md. If the repo has no explicit command yet, start with dotnet test PROJECT_OR_SOLUTION.
  3. Keep the runner model consistent:
    • MSTest.Sdk defaults to the MSTest runner on Microsoft.Testing.Platform
    • VSTest is opt-in with UseVSTest=true or legacy package choices
    • do not pass VSTest-only switches or assume legacy .runsettings behavior on Microsoft.Testing.Platform jobs
  4. Prefer [DataRow] or DynamicData for stable data-driven coverage. Keep test lifecycle hooks minimal and deterministic.
  5. Keep MSTest analyzers enabled and fix findings instead of muting them casually.
  6. Align coverage/reporting packages with the active runner.

Bootstrap When Missing

If MSTest is requested but not configured:

  1. Detect current framework first:
    • rg -n "MSTest\\.Sdk|PackageReference Include=\"MSTest\"|xunit|TUnit|UseVSTest|TestingPlatformDotnetTestSupport" -g '*.csproj' .
  2. If the repo currently uses xUnit or TUnit, do not auto-migrate. Return status: not_applicable unless migration is explicitly requested.
  3. For explicit MSTest adoption, add package(s) to target test project:
    • dotnet add TEST_PROJECT.csproj package MSTest
  4. Document runner model (MSTest.Sdk default MTP vs UseVSTest) in AGENTS.md.
  5. Run dotnet test TEST_PROJECT.csproj and return status: configured or status: improved.

Read the full file on GitHub · 120 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 120 lines · 60 tokens per session scan A 90f1af67217e

Subscribe to this mod's changes

dotnet-mstest is a skill published in the GitHub repository Postpartum-genushyacinthus29/dotnet-skills (10 stars, last pushed 2d ago), licensed MIT. It adds 60 tokens to every session and 1,144 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to mstest, differing in 13 lines, and is treated as a copy.

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