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 Benknightdark/neo-skills --skill neo-dotnet-webapigit clone --depth 1 https://github.com/Benknightdark/neo-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/benknightdark/neo-skills/neo-dotnet-webapi)<a href="https://agentmods.dev/skills/benknightdark/neo-skills/neo-dotnet-webapi"><img src="https://agentmods.dev/badge/skills/benknightdark/neo-skills/neo-dotnet-webapi/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/benknightdark/neo-skills/neo-dotnet-webapi"><img src="https://agentmods.dev/badge/skills/benknightdark/neo-skills/neo-dotnet-webapi.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00054 | $0.00939 |
| Opus 5.5 | $0.00022 | $0.00376 |
| Sonnet 5.5 | $0.00011 | $0.00188 |
| Haiku 4.5 | $0.00005 | $0.00094 |
Grade A, and why
neo-dotnet-webapi 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 1mo 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 — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
.NET Web API Expert Skill
Trigger On
- The user requests to create, debug, refactor, or review ASP.NET Core Web APIs.
- The project contains a
Controllersdirectory and inherits fromControllerBase. - The target framework is .NET 6.0 (LTS) and above.
- There is a need for API code modernization (e.g., migrating from Middleware exception handling to .NET 8+
IExceptionHandler).
Workflow
- Perceive (Architecture Awareness):
- Check
.csprojto identifyTargetFramework. - Analyze project structure to confirm whether it uses N-Tier architecture or Vertical Slice.
- Identify existing cross-cutting concern handling methods (filters, middleware).
- Check
- Reason (Planning Phase):
- Evaluate whether to introduce the "Problem Details" standard.
- Determine whether to use the .NET 8+ global exception handling mechanism.
- Choose an appropriate versioning strategy based on project scale.
- Act (Execution Phase):
- Write high-quality controllers compliant with
[ApiController]conventions. - Implement strongly-typed and immutable DTOs (prioritize
record). - Integrate dependency injection, prioritizing Primary Constructors (C# 12+).
- Write high-quality controllers compliant with
- Validate (Standard Validation):
- Validate whether Action return types comply with
ActionResult<T>specifications. - Check NRT (Nullable Reference Types) safety.
- Ensure asynchronous operations correctly pass down
CancellationToken.
- Validate whether Action return types comply with
Feature Roadmap (.NET 6 - 10)
.NET 6 & 7 (Foundation)
- Controllers Architecture: Traditional controller patterns and attribute routing.
- Problem Details: Unified error response standards.
- Output Caching: High-performance server-side caching.
- Nullable Reference Types: Comprehensive null safety support.
.NET 8 & 9 (Productivity)
- IExceptionHandler: More elegant centralized exception handling.
- Antiforgery: Built-in anti-forgery support for Web APIs.
- Keyed Services: More flexible dependency injection options.
- HybridCache: Multi-level caching optimization.
What ships with it
3 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.
- 1mo ago First seen · 83 lines · 54 tokens per session scan A 6c6981a1233d
neo-dotnet-webapi is a skill published in the GitHub repository Benknightdark/neo-skills (7 stars, last pushed yesterday), licensed MIT. It adds 54 tokens to every session and 939 once invoked, about $0.0002 per session on Opus 5.5. 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.
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