Modern .NET 10 and C# 14 patterns for minimal APIs, modular monoliths, and resilient applications.
Works with
Covers C# 14 syntax (extension blocks, field keyword, null-conditional assignment) and .NET 10 minimal APIs with validation, TypedResults, and modular architecture
Includes security patterns: JWT authentication, CORS, rate limiting, middleware ordering, and RFC 9457 problem details
Provides infrastructure guidance on Options pattern variants (IOptions, IOptionsSnapshot, IOptionsMonitor)
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versiondotnet-10-csharp-14Execute the skills CLI command in your project's root directory to begin installation:
Fetches dotnet-10-csharp-14 from mhagrelius/dotfiles and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate dotnet-10-csharp-14. Access via /dotnet-10-csharp-14 in your agent's command palette.
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.
Submit your Claude Code skill and start earning
Create detailed user stories, acceptance criteria, and feature specs
Example
Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios
Reduce spec writing time by 50%, ensure comprehensive coverage
Research competitors, compare features, identify gaps
Example
Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities
Complete competitive research in 2 hours instead of 2 days
Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs
Example
Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale
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.NET 10 (LTS, Nov 2025) with C# 14. Covers minimal APIs, not MVC.
Official docs: .NET 10 | C# 14 | ASP.NET Core 10
| File | Topics |
|---|---|
| csharp-14.md | Extension blocks, field keyword, null-conditional assignment |
| minimal-apis.md | Validation, TypedResults, filters, modular monolith, vertical slices |
| security.md | JWT auth, CORS, rate limiting, OpenAPI security, middleware order |
| infrastructure.md | Options, resilience, channels, health checks, caching, Serilog, EF Core, keyed services |
| testing.md | WebApplicationFactory, integration tests, auth testing |
| anti-patterns.md | HttpClient, DI captive, blocking async, N+1 queries |
| libraries.md | MediatR, FluentValidation, Mapster, ErrorOr, Polly, Aspire |
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net10.0</TargetFramework>
<LangVersion>14</LangVersion>
<Nullable>enable</Nullable>
</PropertyGroup>
</Project>
var builder = WebApplication.CreateBuilder(args);
// Core services
builder.Services.AddValidation();
builder.Services.AddProblemDetails();
builder.Services.AddOpenApi();
// Security
builder.Services.AddAuthentication().AddJwtBearer();
builder.Services.AddAuthorization();
builder.Services.AddRateLimiter(opts => { /* see security.md */ });
// Infrastructure
builder.Services.AddHealthChecks();
builder.Services.AddOutputCache();
// Modules
builder.Services.AddUsersModule();
var app = builder.Build();
// Middleware (ORDER MATTERS - see security.md)
app.UseExceptionHandler();
app.UseHttpsRedirection();
app.UseCors();
app.UseRateLimiter();
app.UseAuthentication();
app.UseAuthorization();
app.UseOutputCache();
app.MapOpenApi();
app.MapHealthChecks("/health");
app.MapUsersEndpoints();
app.Run();
digraph {
"Error type?" [shape=diamond];
"Expected?" [shape=diamond];
"Result<T>/ErrorOr" [shape=box];
"Exception" [shape=box];
"Error type?" -> "Expected?" [label="domain"];
"Error type?" -> "Exception" [label="infrastructure"];
"Expected?" -> "Result<T>/ErrorOr" [label="yes"];
"Expected?" -> "Exception" [label="no"];
}
digraph {
"Runtime changes?" [shape=diamond];
"Per-request?" [shape=diamond];
"IOptions<T>" [shape=box];
"IOptionsSnapshot<T>" [shape=box];
"IOptionsMonitor<T>" [shape=box];
"Runtime changes?" -> "IOptions<T>" [label="no"];
"Runtime changes?" -> "Per-request?" [label="yes"];
"Per-request?" -> "IOptionsSnapshot<T>" [label="yes"];
"Per-request?" -> "IOptionsMonitor<T>" [label="no"];
}
digraph {
"Trust producer?" [shape=diamond];
"Can drop?" [shape=diamond];
"Bounded+Wait" [shape=box,style=filled,fillcolor=lightgreen];
"Bounded+Drop" [shape=box];
"Unbounded" [shape=box];
"Trust producer?" -> "Unbounded" [label="yes"];
"Trust producer?" -> "Can drop?" [label="no"];
"Can drop?" -> "Bounded+Drop" [label="yes"];
"Can drop?" -> "Bounded+Wait" [label="no"];
}
extension<T>(IEnumerable<T> source)
{
public bool IsEmpty => !source.Any();
}
Make data-driven prioritization decisions faster
Draft PRDs, status updates, and stakeholder presentations
Example
Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement
Save 3-5 hours/week on communication overhead
Prerequisites
Time Estimate
30-60 minutes to see productivity improvements
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
✗ Avoid when
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
mattpocock/skills
parcadei/continuous-claude-v3
cursor/plugins
ailabs-393/ai-labs-claude-skills
ailabs-393/ai-labs-claude-skills
pproenca/dot-skills
Registry listing for dotnet-10-csharp-14 matched our evaluation — installs cleanly and behaves as described in the markdown.
We added dotnet-10-csharp-14 from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
Solid pick for teams standardizing on skills: dotnet-10-csharp-14 is focused, and the summary matches what you get after install.
dotnet-10-csharp-14 reduced setup friction for our internal harness; good balance of opinion and flexibility.
dotnet-10-csharp-14 reduced setup friction for our internal harness; good balance of opinion and flexibility.
dotnet-10-csharp-14 fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
Solid pick for teams standardizing on skills: dotnet-10-csharp-14 is focused, and the summary matches what you get after install.
Useful defaults in dotnet-10-csharp-14 — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
Keeps context tight: dotnet-10-csharp-14 is the kind of skill you can hand to a new teammate without a long onboarding doc.
Solid pick for teams standardizing on skills: dotnet-10-csharp-14 is focused, and the summary matches what you get after install.
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