csharp-foundation

csharp-foundation is a plugin for Claude Code from AratKruglik/claude-sdlc. Its manifest loads nothing; the 3 skills it bundles cost 696 tokens per session together, scanned A, original, MIT.

A shared set of guidelines and tools for building C# and .NET software. It covers modern C# practices, the .NET command-line tools, package and project files, and common testing libraries.

In plain words
What is it for?
Use it when developing or reviewing C#/.NET applications, libraries, and services. It helps with C# style, NuGet packages, solution and project files, command-line tasks, formatting, and tests.
Why use it?
It gives different .NET projects a consistent way to write, format, manage, and test code. Other .NET add-ons can reuse the same foundation instead of defining these basics separately.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add AratKruglik/claude-sdlc
agentmods
npx agentmods add plugins/aratkruglik/claude-sdlc/csharp-foundation
Clone the repo
git clone --depth 1 https://github.com/AratKruglik/claude-sdlc

Made for: Claude Code.

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-foundation

README.md
[![agentmods](https://agentmods.dev/badge/plugins/aratkruglik/claude-sdlc/csharp-foundation.svg)](https://agentmods.dev/plugins/aratkruglik/claude-sdlc/csharp-foundation)
Your own site
<a href="https://agentmods.dev/plugins/aratkruglik/claude-sdlc/csharp-foundation"><img src="https://agentmods.dev/badge/plugins/aratkruglik/claude-sdlc/csharp-foundation.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 3 skills cost 696 tokens a session between them.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

csharp-foundation 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 4d 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.

plugins/csharp-foundation/.claude-plugin/plugin.json · 14 lines

What it actually says

{
  "name": "csharp-foundation",
  "version": "1.3.0",
  "description": "Shared C#/.NET foundation skills for the SDLC marketplace. Contains stack-agnostic conventions: csharp-conventions (modern C# idioms — nullable reference types, records, pattern matching, async/await, IDisposable, naming), dotnet-tooling (dotnet CLI, NuGet, csproj/sln, central package management, dotnet format) and dotnet-testing (xUnit, Moq/NSubstitute, FluentAssertions, coverlet). Referenced cross-plugin by every .NET framework provider in the marketplace. No agent, no stack profile — pure shared library.",
  "author": {
    "name": "Oleksii Kruhlyk",
    "url": "https://github.com/AratKruglik"
  },
  "license": "MIT",
  "homepage": "https://github.com/AratKruglik/claude-sdlc",
  "keywords": ["csharp", "dotnet", "nuget", "xunit", "shared", "foundation", "sdlc"],
  "dependencies": ["sdlc"]
}
Contents

What it installs

The manifest is a name and a version. 3 skills travel with it, and installing the plugin installs all of them — 696 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. 4d ago First seen · 14 lines scan A cffea290b37d

Subscribe to this mod's changes

csharp-foundation is a plugin published in the GitHub repository AratKruglik/claude-sdlc (32 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-30.