csharp-pro
Build Modern C# and .NET Applications
Complex .NET projects require consistent architecture, asynchronous design, performance discipline, and reliable tests. This skill provides focused C# guidance and verifiable implementation steps.
Install with my Agent
Copy this request to your Agent. It includes the canonical Skill page and manifest.
Review the Skillstore skill "csharp-pro" from https://skillstore.io/skills/sickn33-csharp-pro.md and its manifest at https://skillstore.io/api/skills/sickn33-csharp-pro/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.Your Agent should still show its plan and request any confirmation required by the security policy.
Agent-readable resources
Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.
Test it
Using "csharp-pro". Review an asynchronous order handler that blocks on a database call.
Expected outcome:
- Identifies the blocking call and explains its effect on request throughput.
- Proposes asynchronous propagation, cancellation support, and explicit exception handling.
- Defines unit tests for success, cancellation, timeout, and dependency failure.
Using "csharp-pro". Plan a migration from mutable data classes to records.
Expected outcome:
- Classifies models by identity, mutability, serialization, and inheritance requirements.
- Recommends records only where value semantics match domain behavior.
- Lists compatibility tests for equality, mapping, serialization, and persistence.
Using "csharp-pro". Create a performance review plan for a high-volume parser.
Expected outcome:
A review covering allocation profiles, span usage, benchmark baselines, realistic datasets, regression thresholds, and correctness tests.
Security Audit
SafeThe only static finding is a false positive caused by Markdown backticks around a documentation path. The prompt contains no executable code or malicious instructions.
Risk Factors
⚙️ External commands (1)
Share & cite this report
Share the versioned assessment report, neutral badge, embed card, and citations. Skillstore reports evidence without deciding whether this Skill is safe.
Copy report link
https://skillstore.io/skills/sickn33-csharp-pro/audits/5?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_reportMarkdown badge
[](https://skillstore.io/skills/sickn33-csharp-pro?utm_source=security_passport_badge)HTML badge
<a href="https://skillstore.io/skills/sickn33-csharp-pro?utm_source=security_passport_badge"><img src="https://skillstore.io/badges/skills/sickn33-csharp-pro/security.svg" alt="Skillstore security assessment" loading="lazy"></a>Embed card
<iframe src="https://skillstore.io/embed/skills/sickn33-csharp-pro.html" title="Skillstore Security Assessment" sandbox="allow-popups allow-popups-to-escape-sandbox" loading="lazy" referrerpolicy="no-referrer" width="420" height="180"></iframe>Academic citations (APA · BibTeX · CFF)
APA citation
sickn33. (2026). csharp-pro security audit report (audit version 5) [Author version unspecified]. Skillstore. https://skillstore.io/skills/sickn33-csharp-pro/audits/5BibTeX citation
@techreport{sickn33-sickn33-csharp-pro-2026,
author = {sickn33},
title = {csharp-pro security audit report (audit version 5)},
institution = {Skillstore},
year = {2026},
number = {5},
url = {https://skillstore.io/skills/sickn33-csharp-pro/audits/5},
note = {Author version unspecified}
}CITATION.cff
cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "csharp-pro security audit report (audit version 5)"
version: "unspecified"
type: report
authors:
- name: "sickn33"
date-released: "2026-07-23"
url: "https://skillstore.io/skills/sickn33-csharp-pro/audits/5"
identifiers:
- type: other
value: "skillstore:sickn33-csharp-pro:audit:5"
description: "Skillstore immutable audit report identifier"
Skillstore Score
Why this score Evidence Confidence: HighWhat You Can Build
Modernize a C# Codebase
Update older C# patterns with nullable types, records, pattern matching, and clearer error handling.
Design a .NET Service
Plan service boundaries, dependency injection, persistence, asynchronous workflows, and testing for an ASP.NET Core application.
Improve Reliability and Performance
Review concurrency, allocations, tests, and benchmarks to identify measurable improvements.
Try These Prompts
Explain [C# feature] for a beginner. Show when to use it, common mistakes, and a small practical example.
Refactor this C# component for readability and nullable safety. Preserve behavior, explain each change, and propose focused unit tests: [component].
Design [feature] for ASP.NET Core using [constraints]. Include boundaries, data flow, failure handling, asynchronous behavior, dependencies, and a testing strategy.
Analyze this .NET workflow for blocking, contention, allocations, and cancellation issues: [workflow]. Propose measurable changes and a BenchmarkDotNet validation plan.
Best Practices
- Provide the target .NET version, framework versions, constraints, and expected behavior.
- Request tests and validation criteria with every implementation change.
- Measure performance before and after optimization using representative workloads.
Avoid
- Do not request architecture without explaining domain boundaries, scale, and operational constraints.
- Do not accept asynchronous changes that omit cancellation, failure handling, or end-to-end propagation.
- Do not apply advanced language features when simpler code communicates intent more clearly.