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csharp-test-develop

csharp-test-develop is a skill for Claude Code from JeongHeonK/c-sharp-custom-marketplace. It costs 47 tokens per session (1,637 once invoked), scanned A, original, no licence file.

A C#/.NET testing skill that creates unit and integration tests using xUnit, Moq, and FluentAssertions, with work delegated to sub-agents. Unit tests check small pieces of code, while integration tests check how parts work together.

In plain words
What is it for?
Use it to generate tests for .NET classes and services, including tests that replace dependencies with controlled mock objects.
Why use it?
It helps you add tests for existing C# code without writing the test structure from scratch.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Part of the csharp-marketplace plugin — 7 skills shipped together

not rated 5repo 6mo ago A scan 47 tokens no licence

Good fit Use it to generate tests for .NET classes and services, including tests that replace dependencies with controlled mock objects.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jeongheonk/c-sharp-custom-marketplace/csharp-test-develop
View source ↗ JeongHeonK/c-sharp-custom-marketplace
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 JeongHeonK/c-sharp-custom-marketplace --skill csharp-test-develop
Clone the repo
git clone --depth 1 https://github.com/JeongHeonK/c-sharp-custom-marketplace

Made for: Claude Code.

Or install csharp-marketplace, the plugin that ships this one along with the rest of its 7 skills.

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 csharp-test-develop

README.md
[![agentmods](https://agentmods.dev/badge/skills/jeongheonk/c-sharp-custom-marketplace/csharp-test-develop.svg)](https://agentmods.dev/skills/jeongheonk/c-sharp-custom-marketplace/csharp-test-develop)
Your own site
<a href="https://agentmods.dev/skills/jeongheonk/c-sharp-custom-marketplace/csharp-test-develop"><img src="https://agentmods.dev/badge/skills/jeongheonk/c-sharp-custom-marketplace/csharp-test-develop.svg" alt="Measured on agentmods" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,637 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 unknown No closer match found 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 $0.00047 $0.01637
Opus 5 $0.00023 $0.00818
Sonnet 5 $0.00009 $0.00327
Haiku 4.5 $0.00005 $0.00164

Measured 7d ago against content hash d01d646a5391, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

csharp-test-develop 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 7d 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.

skills/csharp-test-develop/SKILL.md · 234 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file 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. 7d ago First seen · 234 lines · 47 tokens per session scan A d01d646a5391

Subscribe to this mod's changes

csharp-test-develop is a skill published in the GitHub repository JeongHeonK/c-sharp-custom-marketplace (5 stars, last pushed 6mo ago), with no licence file. It adds 47 tokens to every session and 1,637 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

C# and .NETLanguagesTestingUnit testing
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