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.
npx skills add Postpartum-genushyacinthus29/dotnet-skills --skill dotnet-minimal-apisgit clone --depth 1 https://github.com/Postpartum-genushyacinthus29/dotnet-skillsWrote 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.
[](https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-minimal-apis)<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-minimal-apis"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-minimal-apis/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.
<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-minimal-apis"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-minimal-apis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00036 | $0.01862 |
| Opus 5 | $0.00018 | $0.00931 |
| Sonnet 5 | $0.00007 | $0.00372 |
| Haiku 4.5 | $0.00004 | $0.00186 |
Grade A, and why
dotnet-minimal-apis 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.
How it starts
The opening of the file, as written. The whole thing — 277 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Minimal APIs
Trigger On
- building new HTTP APIs in ASP.NET Core
- creating lightweight microservices
- choosing between Minimal APIs and controllers
- organizing endpoints with route groups
- implementing validation and filters
Documentation
References
- patterns.md - detailed route groups, filters, TypedResults patterns, parameter binding, error handling, and testing
- anti-patterns.md - common Minimal API mistakes to avoid
When to Use Minimal APIs vs Controllers
| Use Minimal APIs | Use Controllers |
|---|---|
| New projects | Existing MVC/API projects |
| Microservices | Complex model binding |
| Simple CRUD APIs | OData, JsonPatch |
| Lightweight handlers | Heavy use of attributes |
| .NET 8+ projects | Need [ApiController] features |
Workflow
- Define endpoints directly in Program.cs (for small APIs)
- Use route groups for related endpoints
- Move handlers to separate classes as the API grows
- Apply filters for cross-cutting concerns
- Use TypedResults for type-safe responses
- Generate OpenAPI docs with
.WithOpenApi()
Basic Patterns
Simple Endpoints
var app = builder.Build();
app.MapGet("/", () => "Hello World");
app.MapGet("/products/{id}", (int id) => Results.Ok(new { Id = id }));
app.MapPost("/products", (Product product) => Results.Created($"/products/{product.Id}", product));
What ships with it
2 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.
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.
- 9d ago First seen · 277 lines · 36 tokens per session scan A 490cb35d1b39
dotnet-minimal-apis is a skill published in the GitHub repository Postpartum-genushyacinthus29/dotnet-skills (10 stars, last pushed 2d ago), licensed MIT. It adds 36 tokens to every session and 1,862 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 2026-09-03.
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