home/categories/monitoring/tyler-r-kendrick-agent-skills-skills-dotnet-validation-communitytoolkit-guard-skill-md
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communitytoolkit-guard

USE FOR: Writing concise, consistent guard clauses using CommunityToolkit.Diagnostics for argument validation, null checks, range checks, and string validation in constructors, methods, and factory methods. DO NOT USE FOR: Complex business rule validation (use FluentValidation or Peasy), user-facing form validation with error messages (use DataAnnotations), or replacing domain-level parsing/validation (use Parse Don't Validate pattern).

Tyler-R-Kendrick
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Tyler-R-Kendrick
Updated 2/11/2026
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quick start

Installation and usage

USE FOR: Writing concise, consistent guard clauses using CommunityToolkit.Diagnostics for argument validation, null checks, range checks, and string validation in constructors, methods, and factory methods. DO NOT USE FOR: Complex business rule validation (use FluentValidation or Peasy), user-facing form validation with error messages (use DataAnnotations), or replacing domain-level parsing/validation (use Parse Don't Validate pattern).

Installation
$ install --globalskills.sh
Usage

Once installed, you can use this skill by running the following command in your terminal:

skills use communitytoolkit-guard