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configuration

Bind .NET configuration sections to validated options classes with startup checks.

1|Updated Apr 28, 2026
Search Tags:#secrets management#environment variables#options pattern#startup validation#Key Vault#configuration binding#IOptionsSnapshot
One-click install
npx skills add https://github.com/Trossitec/dotnet-claude-kit --skill configuration-trossitec
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: configuration
Source: https://github.com/Trossitec/dotnet-claude-kit/tree/main/skills/configuration
Command: npx skills add https://github.com/Trossitec/dotnet-claude-kit --skill configuration-trossitec

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill prevents fragile, stringly-typed configuration access in .NET apps by guiding you to bind configuration sections to strongly-typed options with fail-fast validation and safe secret handling.

Core Features & Use Cases

  • Options pattern with validation: Binds configuration to options classes and enforces correctness using data-annotation validation and startup validation to catch misconfiguration early.
  • Correct options lifetimes and update behavior: Chooses between IOptions<T>, IOptionsSnapshot<T>, and IOptionsMonitor<T> based on whether configuration is immutable, changes per request, or needs to be watched.
  • Secrets management and environment layering: Recommends safe layering across appsettings.json, environment-specific files, environment variables, and user secrets/Key Vault while ensuring secrets never get committed.

Quick Start

Ask for guidance to configure your .NET 10 app by binding a connection string and other settings into a validated Options class, wiring validation to fail at startup, and using user secrets in development and Key Vault or environment variables in production.

Frequently Asked Questions about configuration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I validate .NET configuration at startup using data annotations?▼

Validate .NET configuration at startup by binding configuration sections to options classes with ValidateDataAnnotations and ValidateOnStart, ensuring the app fails fast if settings are misconfigured. This enforces correctness before the application starts running.

What is the difference between IOptions, IOptionsSnapshot, and IOptionsMonitor?▼

IOptions provides immutable configuration values, IOptionsSnapshot recomputes values per request, and IOptionsMonitor watches for configuration changes at runtime. Choose the correct options lifetime based on whether your settings are immutable, change per request, or need live updates.

How do I bind configuration sections to strongly-typed options classes in .NET?▼

Bind configuration sections to strongly-typed options classes using BindConfiguration instead of ad-hoc IConfiguration reads. This prevents fragile stringly-typed access by mapping settings directly into C# objects with safe, strongly-typed configuration handling.

What is the best way to manage secrets across development and production in .NET?▼

Manage secrets by layering configuration across appsettings.json, environment-specific files, user secrets in development, and Azure Key Vault or environment variables in production. This ensures secrets never get committed while maintaining safe environment layering.

Why should I use the options pattern instead of reading IConfiguration directly?▼

Use the options pattern instead of direct IConfiguration reads to prevent fragile, stringly-typed configuration access. It binds settings to strongly-typed options classes with fail-fast validation and safe secret handling, catching misconfiguration early.

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