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Agent skill

Dotnet Idioms

by irahardianto in irahardianto/awesome-agv

.NET 8+ framework architecture: Minimal APIs, EF Core data access, IOptions configuration, middleware pipelines, and WebApplicationFactory testing.

MITAuto-check passed

Install Dotnet Idioms

skills CLI
$ npx skills add irahardianto/awesome-agv --skill dotnet-idioms -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install irahardianto/awesome-agv dotnet-idioms --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/irahardianto/awesome-agv.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/dotnet-idioms .claude/skills/dotnet-idioms && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
dotnet-idioms
GitHub stars
156
Token cost
~684 tokens
SKILL.md length
159 words
Files
1
Skills in repo
34
Repo updated
First seen
Licence
MIT

At a glance

.NET 8+ framework architecture: Minimal APIs, EF Core data access, IOptions configuration, middleware pipelines, and WebApplicationFactory testing.

  • Works in 2 steps: Minimal APIs for simple endpoints → Controllers for complex endpoints with…
  • Building ASP.NET Core services
  • Calls dotnet
  • .NET cloud backends

What it does

Dotnet Idioms is an agent skill from irahardianto/awesome-agv. .NET 8+ framework architecture: Minimal APIs, EF Core data access, IOptions configuration, middleware pipelines, and WebApplicationFactory testing. Use when building ASP.NET Core services, Web APIs, or .NET cloud backends. Pair with csharp-idioms.

Its SKILL.md is about 680 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with .NET, C# and ASP.NET Core. The repository describes itself as: Comprehensive sets of standards and practices designed to elevate the capabilities of AI coding agents. The licence is MIT.

When your agent uses it

  • Building ASP.NET Core services
  • .NET cloud backends

Example prompts

  • “/dotnet-idioms”

Workflow steps

2 steps, taken from the first numbered list in SKILL.md.

  1. Minimal APIs for simple endpoints
  2. Controllers for complex endpoints with filters, model binding, etc.

What it can do on your machine

Read from SKILL.md and the folder at commit 9e997ba. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • dotnet

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Dotnet Idioms loads about 684 tokens when it runs. Until then it costs about 65 tokens; SKILL.md has 159 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~65
When it runs · the whole SKILL.md, loaded when a task matches
~684

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from irahardianto/awesome-agv at commit 9e997ba, republished under its MIT licence (© irahardianto). 159 words, ~684 tokens.

Download SKILL.mdSave it as .claude/skills/dotnet-idioms/SKILL.md (or your agent's skills folder).
name
dotnet-idioms
description
.NET 8+ framework architecture: Minimal APIs, EF Core data access, IOptions configuration, middleware pipelines, and WebApplicationFactory testing. Use when building ASP.NET Core services, Web APIs, or .NET cloud backends. Pair with csharp-idioms.

.NET Idioms and Patterns

.NET 8+ rewards minimal APIs, DI, and async-first design. Idiomatic .NET = clean, performant, cloud-native.

Scope: .NET framework patterns. For C#: @.agents/skills/csharp-idioms/SKILL.md.

Minimal APIs

  1. Minimal APIs for simple endpoints:

    csharp
    app.MapGet("/api/tasks/{id}", async (string id, ITaskService service) =>
    await service.GetByIdAsync(id) is Task task
        ? Results.Ok(task)
        : Results.NotFound());

app.MapPost("/api/tasks", async (CreateTaskRequest request, ITaskService service) =>
{
    var task = await service.CreateAsync(request);
    return Results.Created($"/api/tasks/{task.Id}", task);
});

  2. Controllers for complex endpoints with filters, model binding, etc.

Entity Framework Core
  1. DbContext per request (scoped lifetime).
  2. Migrations via CLI:
    bash
    dotnet ef migrations add AddTaskPriority
dotnet ef database update
  3. AsNoTracking() for read-only queries.
  4. Compiled queries for hot paths.
Configuration

  1. IOptions<T> pattern for strongly-typed config:

    csharp
    builder.Services.Configure<DatabaseOptions>(builder.Configuration.GetSection("Database"));

  2. User secrets for local development, Key Vault for production.

Middleware
  1. Custom middleware for cross-cutting concerns (logging, correlation IDs).
  2. UseExceptionHandler for global error handling.
Testing

For universal testing principles, see .agents/rules/testing-strategy.md. Below: language-specific patterns only.

  1. xUnit + FluentAssertions:

    csharp
    [Fact]
public async Task GetTask_ReturnsOk_WhenExists()
{
    var client = _factory.CreateClient();
    var response = await client.GetAsync("/api/tasks/1");
    response.StatusCode.Should().Be(HttpStatusCode.OK);
}

  2. WebApplicationFactory<T> for integration tests.

  3. Respawn for database cleanup.

Formatting and Static Analysis
ToolPurposeCommand
dotnet formatFormattingdotnet format
Roslyn analyzersAnalysisBuilt-in
dotnet list package --vulnerableCVE scanningBuilt-in
  • C# Idioms @.agents/skills/csharp-idioms/SKILL.md
  • API Design Principles @.agents/rules/api-design-principles.md
  • Database Design Principles @.agents/rules/database-design-principles.md

© irahardianto, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/dotnet-idioms of irahardianto/awesome-agv.

Open the folder on GitHubat commit 9e997ba

Compare with similar skills

Dotnet Idioms next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Dotnet Idioms compared with similar skills
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Dotnet Idioms this skillirahardianto/awesome-agv156—~684Automated safety check: PassMIT
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Tsp Csharpquerylenshq/ef-querylens225—~1.3kAutomated safety check: PassMIT
Migrate Dotnet9 To Dotnet10dotnet/skills5.6k2 repos~4.8kAutomated safety check: PassMIT
Dotnet Csharpniltor/DeepSeekSDK-NET122—~669Automated safety check: PassMIT
Dotnet Csharpnovotnyllc/dotnet-artisan232—~1.7kAutomated safety check: PassMIT

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Works with

Questions about Dotnet Idioms

What does Dotnet Idioms do?

.NET 8+ framework architecture: Minimal APIs, EF Core data access, IOptions configuration, middleware pipelines, and WebApplicationFactory testing. Dotnet Idioms is an agent skill from irahardianto/awesome-agv.NET 8+ framework architecture: Minimal APIs, EF Core data access, IOptions configuration, middleware pipelines, and WebApplicationFactory testing.

When should I use Dotnet Idioms?

Dotnet Idioms fits situations like: building ASP.NET Core services; .NET cloud backends.

How do I install Dotnet Idioms in Claude Code?

Run `npx skills add irahardianto/awesome-agv --skill dotnet-idioms -a claude-code`. Or copy the skill folder (.agents/skills/dotnet-idioms in irahardianto/awesome-agv) into .claude/skills/dotnet-idioms in your project. Claude Code loads it when a task matches its description.

How do I install Dotnet Idioms in Codex?

Run `npx skills add irahardianto/awesome-agv --skill dotnet-idioms -a codex`. Or copy the skill folder (.agents/skills/dotnet-idioms in irahardianto/awesome-agv) into .agents/skills/dotnet-idioms in your project. Codex loads it when a task matches its description.

Can I use Dotnet Idioms in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add irahardianto/awesome-agv --skill dotnet-idioms -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/dotnet-idioms, .gemini/skills/dotnet-idioms, .github/skills/dotnet-idioms and .opencode/skills/dotnet-idioms in your project.

What does Dotnet Idioms need to run?

Going by SKILL.md and its folder, Dotnet Idioms needs the command-line tools its instructions call (dotnet).

Does Dotnet Idioms access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Dotnet Idioms safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Dotnet Idioms use?

Dotnet Idioms is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Dotnet Idioms use?

About 684 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Dotnet Idioms?

Skills that share tags, products or a category with Dotnet Idioms: Migrate Dotnet8 To Dotnet9 (dotnet/skills, 5.6k stars), Tsp Csharp (querylenshq/ef-querylens, 225 stars), Migrate Dotnet9 To Dotnet10 (dotnet/skills, 5.6k stars) and Dotnet Csharp (niltor/DeepSeekSDK-NET, 122 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Dotnet Idioms?

irahardianto (a GitHub user) maintains it in irahardianto/awesome-agv, which has 156 GitHub stars. The repository holds 34 skills in this directory. The repository was last updated on October 5, 2026.

Source: irahardianto/awesome-agv on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.