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Use when building GraphQL APIs with Apollo Server requiring resolvers, data sources, schema design, and federation.

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Enforce Design-It-Twice workflow: generate 2-3 radically different approaches, compare them, then implement. Use when designing modules, APIs, or classes before implementation. Triggers on: design, create class, add module, implement feature, new service, API design, before implementing. Produces structured design document with approaches, comparison table, choice rationale, and depth check.

Enforce comments-first workflow for new code and improve naming/documentation for existing code. Use when writing new classes, methods, or functions; when code is 'confusing' or 'hard to understand'; when naming precision is poor; or when variable documentation lacks units, bounds, or ownership. Triggers on: new code, comments-first, naming review, documentation review, not obvious, hard to understand. Produces well-documented code with precise naming, or identifies design problems when comments/names are hard to write.

Enforce strategic programming discipline when modifying existing code. Guide through STOP-ASK-DECIDE-VERIFY workflow with urgency tier assessment (trivial/minor/standard/emergency). Include when NOT to refactor (Chesterton's Fence, performance-critical, no tests) and block tactical shortcuts via anti-rationalization tables. Use when fixing bugs, extending features, or tempted to make quick fixes. Triggers on: modify code, fix bug, extend feature, quick fix, tactical change.

Evaluate module design using APOSD principles with 40-item checklist. Detect complexity symptoms (change amplification, cognitive load, unknown unknowns), shallow modules, information leakage, pass-through methods, and structural anti-patterns. Produce categorized design review (Critical/Moderate/Observations/Positive). Use when reviewing code, assessing interfaces, during PR review, or evaluating 'is this too complex?' Triggers on: code review, design review, module complexity, interface assessment, PR review, structural analysis.

Simplify complex code through the Error Reduction Hierarchy: Define out > Mask > Aggregate > Crash. Use when code is too complex, has scattered error handling, configuration explosion, or callers doing module work. Produce technique analysis table with gate checks before simplified code. Triggers on: too complex, simplify, scattered errors, configuration proliferation, verbose error handling. Complements cc-defensive-programming with design-level error elimination.

Verify code correctness before claiming done or committing. Run 6-dimension checklist: requirements coverage, concurrency safety, error handling, resource management, boundary conditions, and security. Output PASS/FAIL per dimension with final DONE/NOT DONE verdict. Use after implementation as pre-commit gate. Triggers on: is it done, ready to commit, verify correctness, did I miss anything, pre-commit check.

Expert digital data analytics consultant for designing and implementing data-driven growth strategies for mobile and digital applications. Use this skill when users need help with app analytics strategy, metrics selection, analytics framework implementation, cohort analysis, user segmentation, A/B testing, customer journey mapping, retention optimization, or choosing analytics tools. Applies to product managers, growth teams, and developers building data-driven applications across all platforms and industries seeking to optimize user engagement, retention, and revenue through analytics.

Create apps following contract-port architecture with composition roots. Use when creating new apps in apps/, scaffolding CLI tools, setting up dependency injection, or when the user asks about app structure, entrypoints, or platform-agnostic design.

Build features in the AI Coaching Platform Next.js app. Use for creating pages, components, server actions, TanStack tables, and understanding application architecture.

Submitting, testing, and releasing mobile apps to app stores including App Store and Google Play submission, beta testing, OTA updates, and release management.

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App Intents framework for Siri, Shortcuts, Spotlight, Action Button, and system integration. Use when user asks about Siri, Shortcuts, App Intents, voice commands, Action Button, or system integration.

When any part of the application needs to be found or understood.

Write marketing copy and App Store / Google Play listings (ASO keywords, titles, subtitles, short+long descriptions, feature bullets, release notes), plus screenshot caption sets and text-to-image prompt templates for generating store screenshot backgrounds/promo visuals. Use when asked to: write/refresh app marketing copy, craft app store metadata, brainstorm taglines/value props, produce ad/landing/email copy, or generate prompts for screenshot/creative generation.

Review and process app submissions for the Pollinations showcase. Parse issues, validate submissions, create PRs, handle user corrections.

The App Router is Next.js's file-system based router built on React Server Components. It uses a `app/` directory structure where folders define routes and special files control UI behavior.

app-sharing

All modes that write scripts or code follow these app standards for communication, modularization, simplification, naming conventions

app-template

Imported skill app from langchain

Expert guidance for working with the AppConfig runtime configuration system in squareone. Use this skill when implementing configuration loading, working with YAML config files, setting up new pages that need configuration, troubleshooting config hydration issues, or migrating from next/config patterns. Covers server-side loadAppConfig(), client-side useAppConfig(), MDX content loading, Sentry configuration injection, and Kubernetes ConfigMap patterns.

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Create Apple-inspired modern, minimalist UI designs with glassmorphism, smooth animations, generous whitespace, and elegant typography. Use when designing portfolio websites, landing pages, hero sections, product showcases, or implementing Apple-style components, dark mode, or responsive layouts.

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Use this skill when working with Apple's Foundation Models framework for on-device AI and LLM capabilities in iOS/macOS apps

Comprehensive guide for accessing and automating Apple Mail using AppleScript, including reading emails, sending messages, and managing mailboxes.

Build apps for macOS, iPadOS, watchOS, and visionOS with platform-specific features. Use when creating menu bar apps, iPad split views, Apple Watch complications, Vision Pro immersive experiences, or multi-platform adaptations.

Use when working with Apple Shortcuts on macOS/iOS - discovering actions, extension apps, running shortcuts from CLI, or integrating with automation workflows.

Expert troubleshooting for Apple TV (tvOS) React Native development. Use when users have issues with Siri Remote, focus management, TVEventHandler, TVFocusGuideView, ScrollView not scrolling, tvOS-specific problems, parallax animations, or tvOS vs Android TV differences.

This skill should be used when working with applesauce-core library for Nostr client development, including event stores, queries, observables, and client utilities. Provides comprehensive knowledge of applesauce patterns for building reactive Nostr applications.

UseCase 설계, Transaction 경계 관리, CQRS 적용. @Transactional 내 외부 API 호출 금지. /kb-application 명령 시 자동 활성화.

Implement structured logging across applications with log aggregation and centralized analysis. Use when setting up application logging, implementing ELK stack, or analyzing application behavior.

Plan and execute application migration projects—from legacy system modernization to cloud migration and technology stack transformation.

Optimize end-to-end application performance with profiling, observability, and backend/frontend tuning. Use when coordinating performance optimization across the stack.

Use after code review - implement ALL findings; any finding not fixed MUST have tracking issue created; no finding disappears without trace

Apply and validate the 7 Key Principles to code - TDD, Fail Fast, Modular, Reuse, Open Source, No Debt, Excellence. Checks code compliance and suggests improvements. Use during code review or refactoring.

Provides guidelines for applying Mantel's brand styles to diagrams and frontend components. Use when asked to create visuals that need to align with Mantel's branding.

Systematically consume QA quality gate outputs and apply prioritized fixes for high-severity issues, NFR failures, and test coverage gaps. Use when quality review identifies issues requiring remediation.

This skill applies consistent corporate branding and styling to all generated documents including colors, fonts, layouts, and messaging

General syntax and naming rules to keep the codebase maintainable. Use for all code generation.

Feature-Sliced Design(FSD) 아키텍처를 적용한 프론트엔드 프로젝트 개발 지원. FSD 레이어, 슬라이스, 세그먼트 구조 설계, 의존성 규칙 적용, 마이그레이션 시 사용.

Imported skill approval from langchain

Comprehensive guide for creating content on ayokoding-web Hugo site using Hextra theme. Covers bilingual content strategy (default English), level-based weight ordering system, by-example tutorial annotation standards (1-2.25 comments per code line), absolute path linking requirements, and ayokoding-web specific frontmatter patterns. Essential for content creation tasks on ayokoding-web

Guide for creating content on ose-platform-web Hugo site using PaperMod theme. Covers English-only landing page structure, update posts with date-prefixed filenames, PaperMod frontmatter (cover images, table of contents, author field), simple flat organization, and ose-platform-web specific conventions. Essential for ose-platform-web content creation tasks

apps