Skills（SKILL.md）は、AIエージェント（Claude Code、Cursor、Codexなど）に特定の能力を追加するための設定ファイルです。
詳しく見る →Use this skill when working with the Crystal programming language. Crystal is a statically-typed, compiled language with Ruby-like syntax. It features type inference, null safety, macros, and compiles to efficient native code. Use for understanding Crystal's standard library, syntax, semantics, concurrency model, and FFI bindings.
Use when implementing compile-time metaprogramming in Crystal using macros for code generation, DSLs, compile-time computation, and abstract syntax tree manipulation.
CS-GUIDE.md 템플릿에 맞춰 학습 문서를 작성하는 Skill입니다.
CS-GUIDE.md가 업데이트되면 기존에 작성한 CS 문서들을 새로운 가이드 형식에 맞춰 동기화하는 Skill입니다.
Analyze CS2 demo files and generate comprehensive tactical reports
Chat Shared Conversation To File - convert ChatGPT, Gemini, Grok, and Claude share links to clean Markdown + HTML transcripts with preserved code fences.
Modern C# asynchronous programming patterns using async/await, proper CancellationToken usage, and error handling in async code. Use when guidance needed on async/await best practices, Task composition and coordination, ConfigureAwait usage, ValueTask optimization, or async operation cancellation patterns. Pure .NET framework patterns applicable to any C# application.
C# code style and naming conventions based on POCU standards. Covers naming rules (mPascalCase for private, bBoolean prefix, EEnum prefix), code organization, C# 9.0 patterns. Use PROACTIVELY for C# code reviews, refactoring, or establishing project standards.
.NET 8 and C# 12 specialist with expertise in ASP.NET Core, EF Core, and modern enterprise development. Use when building C# applications, working with .NET, implementing ASP.NET Core APIs, or using Entity Framework.
Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Invoke for Entity Framework Core, minimal APIs, async patterns, CQRS with MediatR.
Use when lINQ query and method syntax, deferred execution, and performance optimization. Use when querying collections in C#.
Write modern C# code with advanced features like records, pattern
Compiler-accurate semantic analysis for C# using Roslyn APIs. **Not text search** - understands C# semantics.
Expert-level C# unit testing skill based on ISTQB standards and best practices. Use this skill when creating, reviewing, or refactoring unit tests for C# applications (.NET/ASP.NET Core). Applies test design techniques, coverage strategies, and quality assurance principles from ISTQB Foundation and Advanced levels.
C# and Unity development standards for Mark's projects.
C# and .NET project workflow guidelines. Activate when working with C# files (.cs), .csproj, .NET projects, or C#-specific tooling.
C# XML documentation with on-demand Haiku→Expert Review→Final workflow. Flexible Korean/English language support. Use when documenting C# APIs, properties, methods, classes, and interfaces.
C# static analysis tool for call graphs, unused code detection, impact analysis, HTML documentation generation, and Graphviz diagram export
This skill should be used when the user requests to generate, create, or configure Content Security Policy (CSP) headers for Next.js applications to prevent XSS attacks and control resource loading. It analyzes the application to determine appropriate CSP directives and generates configuration via next.config or middleware. Trigger terms include CSP, Content Security Policy, security headers, XSS protection, generate CSP, configure CSP, strict CSP, nonce-based CSP, CSP directives.
Debug CSRF token issues and authentication problems including 403 Forbidden errors, cookie issues, JWT tokens, OAuth flows, and session management. Use when troubleshooting CSRF verification failed, 403 errors on POST requests, login not working, or token refresh issues.
name: Cross-Site Request Forgery (CSRF) Testing
Organize CSS using BEM, SMACSS, and CSS-in-JS patterns. Use when building scalable, maintainable styling systems with proper naming conventions.
Modern CSS organization with native @import, @layer cascade control, CSS nesting, design tokens, and element-focused selectors. AUTO-INVOKED when editing .css files.
CSS authoring guidance emphasizing web standards, accessibility, and performance. Use when writing, reviewing, or refactoring CSS. Provides patterns, snippets, and conventions that prioritize native CSS over frameworks, semantic structure, and maintainable code. Refer to references/patterns.md for specific patterns and snippets.
Systematically find and replace ALL hardcoded hex values with proper CSS design tokens to ensure complete color consistency across the Pomo-Flow application. This skill addresses the critical issue of yellow vs orange medium priority colors by enforcing a unified design token system based on industry best practices from Atlassian, Salesforce, and enterprise design systems.
CSS design tokens and color system for vehicle insurance platform. Use when defining colors, spacing, typography, or design variables. Keywords: eye-care colors #5B8DEF/#8B95A5/#C5CAD3, CSS variables, spacing system, color palette, typography scale, design tokens, variables.css, theme colors.
Comprehensive workflow for CSS development using Tailwind + semantic component patterns. This skill automatically routes you to the appropriate specialized workflow based on context.
Analyze CSS coverage, identify unused rules, and detect stylesheet conflicts. Use after visual QA to optimize stylesheets before publication.
Expert in modern CSS (cascade layers, OKLCH, container queries, defensive patterns). Use for CSS implementation, styling, layout, colors, typography, responsive design, and UI components.
Generate CSS, Tailwind, and styled-components code from design style selections
Deep CSS analysis tool for understanding specificity, cascade order, inheritance chains, and computed styles. Visualizes CSS complexity and suggests simplifications. Use when debugging specificity issues or understanding CSS behavior.
This skill provides prescriptive guidance for writing modern CSS layouts using intrinsic design principles, container queries, and fluid responsive techniques. When implementing CSS layouts, always consult this document first.
Precision CSS/styling modifications for pixel-perfect adjustments with Tailwind, CSS Modules, and plain CSS support
Guide for reviewing modern CSS framework. Use this when asked to review CSS in `packages/css`.
Guide for developing Storybook stories for CSS components in `@madogiwa-ui/css`.
CSS and styling workflow guidelines. Activate when working with CSS files (.css), Tailwind CSS, Stylelint, or styling-related tasks.
Write modern, performant, maintainable CSS following current best practices with deep knowledge of browser compatibility and CSS specifications.
Validate and audit CSV data for quality, consistency, and completeness. Use when you need to check CSV files for data issues, missing values, or format inconsistencies.
Analyzes CSV files, generates summary stats, and plots quick visualizations using Python and pandas.
Export RFP data, evaluations, and pursuits in CSV and other formats. Use when implementing data export features, building reports, or extracting data for analysis.
Guide for using the ct (CommonTools) binary to interact with charms,
Digital forensics and blockchain analysis for CTF challenges. Use when analyzing disk images, memory dumps, event logs, network captures, or cryptocurrency transactions.
Open Source Intelligence techniques for CTF challenges. Use when gathering information from public sources, social media, geolocation, or identifying unknown data.
Solve CTF reverse engineering challenges using systematic analysis to find flags, keys, or passwords. Use for crackmes, binary bombs, key validators, obfuscated code, algorithm recovery, or any challenge requiring program comprehension to extract hidden information.
Solve CTF (Capture The Flag) challenges by analyzing challenge descriptions, source code, and interacting with challenge environments to capture flags.
CTF Web Solver
Web exploitation techniques for CTF challenges. Use when solving web security challenges involving XSS, SQLi, CSRF, file upload bypasses, JWT attacks, Web3/blockchain exploits, or other web vulnerabilities.
Technical leadership guidance for engineering teams, architecture decisions, and technology strategy. Includes tech debt analyzer, team scaling calculator, engineering metrics frameworks, technology evaluation tools, and ADR templates. Use when assessing technical debt, scaling engineering teams, evaluating technologies, making architecture decisions, establishing engineering metrics, or when user mentions CTO, tech debt, technical debt, team scaling, architecture decisions, technology evaluation, engineering metrics, DORA metrics, or technology strategy.
Expert methodology for making and documenting critical architectural decisions using ADRs, trade-off analysis, migration planning, and technical debt management.
Perform deep, expert-level codebase and architecture audits to identify technical strengths, weaknesses, risks, and opportunities. Use when a user asks for an assessment of a codebase's structure, quality, or readiness for scale. Deliver detailed, actionable, and prioritized recommendations grounded in engineering best practices.