fluent-validations

USE FOR: Building strongly-typed validation rules for domain models and DTOs using FluentValidation's fluent API. Use for form validation, API request validation, and business rule enforcement with composable, testable validators. DO NOT USE FOR: Simple null/range guard clauses on method parameters (use CommunityToolkit.Diagnostics Guard), compile-time type safety enforcement (use Parse Don't Validate pattern), or command pipeline orchestration (use Peasy or MediatR behaviors).

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仓库: Tyler-R-Kendrick/agent-skills
最近来源活动: 2026年2月11日 05:14
检测到的 SKILL.md 语言: 英语
星标: 10
分支: 4

安装方式

默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。

用 Codex 或 Claude 帮你安装复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。

直接命令不会经过审查 Prompt；运行前请先检查来源。

npx skills add https://github.com/Tyler-R-Kendrick/agent-skills --skill fluent-validations

命令会保持在同一行。复制前请横向滚动并检查完整内容。

想先保存到本地？可下载 SkillsMP 当前能够提供的文件。

检查来源文件

决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。

文件资源管理器

21 个文件

SKILL.md

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improve

Use when producing agent/LLM evals, synthetic simulation data, or self-improvement pipelines for prompts, code, skills, agents, harnesses, and workflows. Covers AgentEvals/AgentV, Agent Skills evals, ASSERT, GEPA, Trace, VISTA, Agent Lightning, SkillOpt, Simula-style data design, progressive disclosure, deterministic workspaces, and release evidence. USE FOR: eval creation, EVAL.yaml, AgentEvals, AgentV, evals.json, ASSERT, judge-traces, behavior taxonomy, judges, graders, rubrics, synthetic data, simulation data, Simula, QDC, source-grounded generation, prompt optimization, agent improvement, skill improvement, harness hardening, progressive disclosure, deterministic workflows, GEPA, Trace, VISTA, Agent Lightning, SkillOpt DO NOT USE FOR: ordinary unit/integration tests without AI quality criteria (use testing), refactoring without eval or trace feedback (use refactor), generic Agent Skills packaging without eval or improvement work (use agent-skills)

2026-06-09

Use when working with AI agent protocols, standards, interoperability specifications, evaluation contracts, synthetic simulation data, improvement pipelines, and agent steering workflows. Covers MCP, A2A, ACP, Agent Skills, AGENTS.md, ADL, Improve, x402, AP2, MCP Apps, cagent, and learn. USE FOR: agent protocol selection, comparing MCP vs A2A vs ACP, understanding agent standards ecosystem, choosing payment protocols, choosing eval standards, choosing improvement techniques, choosing synthetic data simulation techniques, steering from user feedback DO NOT USE FOR: specific protocol, eval, or improvement implementation details (use the sub-skills: mcp, a2a, acp, improve, learn, x402, etc.)

2026-06-09

learn

Use when a user corrects, rejects, edits, or redirects an LLM/agent response and the correction should become a reusable reasoning strategy. Converts feedback into generalized learnings for ~/.agents/STEERING.md with linked RDF/Turtle evidence. USE FOR: user corrections, preference feedback, rejected agent behavior, reasoning strategy updates, steering file maintenance DO NOT USE FOR: storing task facts (use memory), ordinary skill authoring (use agent-skills), project instruction files unrelated to feedback (use agents-md)

2026-06-08

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name	fluent-validations
description	USE FOR: Building strongly-typed validation rules for domain models and DTOs using FluentValidation's fluent API. Use for form validation, API request validation, and business rule enforcement with composable, testable validators. DO NOT USE FOR: Simple null/range guard clauses on method parameters (use CommunityToolkit.Diagnostics Guard), compile-time type safety enforcement (use Parse Don't Validate pattern), or command pipeline orchestration (use Peasy or MediatR behaviors).
license	MIT
metadata	{"displayName":"FluentValidation","author":"Tyler-R-Kendrick","version":"1.0.0"}
compatibility	["claude","copilot","cursor"]
references	[{"title":"FluentValidation Documentation","url":"https://docs.fluentvalidation.net/"},{"title":"FluentValidation GitHub Repository","url":"https://github.com/FluentValidation/FluentValidation"},{"title":"FluentValidation NuGet Package","url":"https://www.nuget.org/packages/FluentValidation"}]

FluentValidation

Overview

FluentValidation is a .NET validation library that uses a fluent interface and lambda expressions to build strongly-typed validation rules. Validators are defined as classes that inherit from , and rules are configured in the constructor using a chainable API. FluentValidation supports conditional rules, custom validators, async validation, collection validation, and integration with ASP.NET Core's model validation pipeline. It produces objects containing typed error messages that can be mapped to API responses or UI error displays.

using FluentValidation; namespace MyApp.Validators; public class RegisterUserRequestValidator : AbstractValidator<RegisterUserRequest> { private readonly IUserRepository _userRepository; public RegisterUserRequestValidator(IUserRepository userRepository) { _userRepository = userRepository; RuleFor(x => x.Email) .NotEmpty() .EmailAddress() .MustAsync(BeUniqueEmail) .WithMessage("An account with this email already exists."); RuleFor(x => x.Username) .NotEmpty() .MinimumLength(3) .MaximumLength(50) .Matches(@"^[a-zA-Z0-9_]+$") .WithMessage("Username may only contain letters, numbers, and underscores.") .MustAsync(BeUniqueUsername) .WithMessage("This username is already taken."); RuleFor(x => x.Password) .NotEmpty() .MinimumLength(8) .Must(ContainUppercase).WithMessage("Password must contain at least one uppercase letter.") .Must(ContainDigit).WithMessage("Password must contain at least one digit.") .Must(ContainSpecialChar).WithMessage("Password must contain at least one special character."); RuleFor(x => x.ConfirmPassword) .Equal(x => x.Password) .WithMessage("Passwords do not match."); } private async Task<bool> BeUniqueEmail(string email, CancellationToken ct) => !await _userRepository.EmailExistsAsync(email, ct); private async Task<bool> BeUniqueUsername(string username, CancellationToken ct) => !await _userRepository.UsernameExistsAsync(username, ct); private bool ContainUppercase(string password) => password.Any(char.IsUpper); private bool ContainDigit(string password) => password.Any(char.IsDigit); private bool ContainSpecialChar(string password) => password.Any(ch => !char.IsLetterOrDigit(ch)); } public class RegisterUserRequest { public string Email { get; set; } = string.Empty; public string Username { get; set; } = string.Empty; public string Password { get; set; } = string.Empty; public string ConfirmPassword { get; set; } = string.Empty; }

Feature	FluentValidation	DataAnnotations	CommunityToolkit Guard	Validot
Validation style	Fluent builder	Attributes	Static methods	Specification builder
Async support	Yes (MustAsync)	No	No	No
DI integration	Constructor injection	No	No	No
Collection rules	RuleForEach	No	HasSize* methods	Member + Each
Error result type	ValidationResult	ModelStateDictionary	Throws exceptions	IValidationResult
ASP.NET Core integration	Auto + manual	Built-in	Not applicable	Manual

fluent-validations

安装方式

检查来源文件

FluentValidation

Overview

FluentValidation

Overview

Basic Validator

Async Validation with External Dependencies

ASP.NET Core Integration

MediatR Pipeline Integration

FluentValidation vs Other Approaches

Best Practices

fluent-validations

来源信息

安装方式

检查来源文件

同仓库更多 Skills

同仓库更多 Skills

FluentValidation

Overview

FluentValidation

Overview

Basic Validator

Async Validation with External Dependencies

ASP.NET Core Integration

MediatR Pipeline Integration

FluentValidation vs Other Approaches

Best Practices