golang-error-handling
Standards for error wrapping, checking, and definition in Golang. Use when wrapping errors, defining sentinel errors, or handling errors idiomatically in Go. (triggers: fmt.Errorf, errors.Is, errors.As, error wrapping, sentinel error, error handling)
golang-language
Core idioms, style guides, and best practices for writing idiomatic Go code. Use when writing Go code following official style guides and idiomatic patterns. (triggers: go.mod, golang, go code, idiomatic, gofmt, goimports, iota, golang style)
golang-logging
Standards for structured logging and observability in Golang. Use when adding structured logging or tracing to Go services. (triggers: go.mod, pkg/logger/**, logging, slog, structured logging, zap)
golang-security
Secure Go backend services against common vulnerabilities. Use when implementing input validation, crypto, or SQL injection prevention in Go. (triggers: crypto/rand, argon2, sanitize, jwt, bcrypt, validation, input validation, sql injection)
golang-testing
Write unit tests with table-driven patterns and interface mocking in Go. Use when writing Go unit tests, table-driven tests, or using mock interfaces. (triggers: **/*_test.go, testing, unit tests, go test, mocking, testify)
golang-tooling
Go developer toolchain — gopls LSP diagnostics, linting, formatting, and vet. Use when setting up Go tooling, running linters, or integrating gopls with Claude Code. (triggers: gopls, golangci-lint, golangci.yml, go vet, goimports, staticcheck, go tooling, go lint)
ios-app-lifecycle
Manage AppDelegate, SceneDelegate, deep linking, and background tasks. Use when configuring iOS app lifecycle, deep linking, or background task scheduling. (triggers: AppDelegate.swift, SceneDelegate.swift, didFinishLaunchingWithOptions, willConnectTo, backgroundTask, Shortcut, UserActivity)
ios-architecture
Apply MVVM, Coordinators, and Clean Architecture (VIP/VIPER) in iOS apps. Use when applying MVVM, Coordinators, or VIP/VIPER architecture in iOS apps. (triggers: **/*ViewModel.swift, **/*Coordinator.swift, **/*ViewController.swift, MVVM, Coordinator, ViewState, Output, Input)
ios-dependency-injection
Configure protocol-based DI with property wrappers and Factory/Swinject. Use when setting up dependency injection or factory patterns in iOS. (triggers: **/*.swift, @Injected, Resolver, Container, Swinject, register, resolve)
ios-deployment
Automate provisioning, signing, and deployment with Fastlane. Use when provisioning iOS apps, managing code signing, or automating deployments with Fastlane. (triggers: Fastfile, Appfile, Matchfile, ios_bundle_id, provisioning_profile, testflight)
ios-design-system
Enforce design token usage in SwiftUI apps using iOS Human Interface Guidelines. Use when implementing design tokens, colors, or typography in SwiftUI. (triggers: **/*View.swift, **/Theme/**, **/DesignSystem/**, Color, Font, SwiftUI, ViewModifier, Theme)
ios-localization
Implement String Catalogs, L10n workflows, and asset management for iOS. Use when adding multi-language support using iOS String Catalogs or L10n workflows. (triggers: **/*.stringcatalog, **/*.xcassets, **/*.strings, LocalizedStringResource, NSLocalizedString, String(localized:))
ios-navigation
SwiftUI navigation and deep linking using NavigationStack and Universal Links. Use when implementing NavigationStack or Universal Links deep linking in iOS. (triggers: **/*View.swift, **/*App.swift, NavigationStack, NavigationLink, onOpenURL, universalLink, NSUserActivity)
ios-networking
Build API clients with URLSession, Alamofire, and Codable. Use when implementing URLSession networking, Alamofire, or API clients in iOS. (triggers: **/*Service.swift, **/*API.swift, **/*Client.swift, URLSession, Alamofire, Moya, URLRequest, URLComponents, Codable)
ios-notifications
Push notifications for iOS using UserNotifications framework and APNS. Use when integrating APNS push notifications in iOS applications. (triggers: **/*Notification*.swift, **/*AppDelegate.swift, UNUserNotificationCenter, APNS, UNNotificationRequest, deviceToken)
ios-performance
Profile and optimize iOS apps with Instruments, memory management, and rendering techniques. Use when profiling iOS apps with Instruments or optimizing memory and rendering. (triggers: **/*.swift, Instruments, Allocations, Leaks, dequeueReusableCell)
ios-persistence
Implement local persistence with SwiftData, Core Data, and Keychain. Use when setting up SwiftData models, Core Data stacks, or local persistence in iOS. (triggers: **/*.xcdatamodeld, **/*Model.swift, PersistentContainer, FetchRequest, ManagedObject, Query, ModelContainer, Repository)
ios-security
Secure iOS apps with Keychain, biometrics, and data protection. Use when implementing Keychain storage, Face ID/Touch ID, or data protection in iOS. (triggers: **/*.swift, SecItemAdd, kSecClassGenericPassword, LAContext, LocalAuthentication)
nextjs-data-fetching
Implement Fetch API, Caching, and Revalidation strategies in Next.js. Use when fetching data, configuring cache behavior, or implementing revalidation in Next.js. (triggers: **/*.tsx, **/service.ts, fetch, revalidate, no-store, force-cache)
nextjs-i18n
Best practices for multi-language handling, locale routing, and detection strategies across App and Pages Router. Use when adding i18n, locale routing, or language detection in Next.js. (triggers: middleware.ts, app/[lang]/**, pages/[locale]/**, messages/*.json, next.config.js, i18n, locale, translation, next-intl, react-intl, next-translate)
nextjs-optimization
Optimize images, fonts, scripts, and metadata for Next.js performance and Core Web Vitals. Use when configuring next/image for LCP, next/font for zero layout shift, next/script loading strategies, or generateMetadata for SEO. (triggers: **/layout.tsx, **/page.tsx, next/image, next/font, metadata, generateMetadata)
nextjs-pages-router
Implement Pages Router data fetching with getServerSideProps, getStaticProps, and API routes in Next.js legacy projects. Use when working in a pages/ directory project, adding SSR/SSG data fetching, or creating API routes. (triggers: pages/**/*.tsx, pages/**/*.ts, Pages Router, getServerSideProps, getStaticProps, _app, useRouter)
nextjs-rendering
Select and implement SSG, SSR, ISR, Streaming, or Partial Prerendering strategies in Next.js App Router. Use when choosing a rendering mode for a page, configuring generateStaticParams, or enabling PPR. (triggers: **/page.tsx, **/layout.tsx, generateStaticParams, dynamic, dynamicParams, PPR, streaming)
nextjs-security
Secure Next.js App Router with middleware auth, Server Action validation, CSP headers, and taint APIs. Use when adding authentication middleware, validating Server Action inputs with Zod, or preventing secret leakage to client bundles. (triggers: app/**/actions.ts, middleware.ts, action, boundary, sanitize, auth, jose)
nextjs-server-actions
Handle mutations, forms, and RPC-style calls with Next.js Server Actions. Use when implementing Server Actions, form mutations, or RPC-style data mutations in Next.js. (triggers: app/**/actions.ts, src/app/**/actions.ts, app/**/*.tsx, src/app/**/*.tsx, use server, Server Action, revalidatePath, useFormStatus)
quality-engineering-quality-assurance
Write manual test cases with 1-condition-per-TC granularity, Module_Action on Screen when Condition naming, platform prefix rules, and High/Normal/Low priority classification. Use when writing or reviewing manual test cases for Zephyr — to split compound TCs, fix naming violations, assign correct platform tags, or determine bug priority. (triggers: test case, manual test, zephyr, test scenario, naming convention, acceptance criteria)
quality-engineering-jira-integration
Jira ↔ Zephyr traceability: fetch story AC and components, detect existing TC links, link new Zephyr TCs back to Jira, and apply has-zephyr-tests labels. Use after creating Zephyr test cases that need linking, when fetching a Jira story's details for test generation, or when auditing and cleaning up stale TC links. (triggers: jira issue, zephyr link, has-zephyr-tests, traceability, link test case, EZRX-)
quality-engineering-business-analysis
Investigate requirements with atomic AC decomposition, actor/permission matrix, platform parity audit, truth table verification, and edge case discovery. Also enforces User Story authoring standards: story structure, scope fences, platform tags, toggle contracts, market isolation, and deferral patterns. Use when writing, reviewing, or improving User Stories, acceptance criteria, or doing impact analysis — especially for stories with multi-condition AC, feature toggles, market variants (VN/MY/SG), or undefined platform behavior. (triggers: **/user_story.md, acceptance criteria, AC, business rules, jira story, toggle, market, write user story, improve user story, review story, BA)
php-tooling
Configure PHP ecosystem tooling, dependency management, and static analysis. Use when managing Composer dependencies, running PHPStan, or configuring PHP build tools. (triggers: composer.json, composer, lock, phpstan, xdebug)
php-testing
Write unit and integration tests for PHP applications with PHPUnit and Pest. Use when writing PHPUnit unit tests or integration tests for PHP applications. (triggers: tests/**/*.php, phpunit.xml, phpunit, pest, mock, assert, tdd)
php-security
PHP security standards for database access, password handling, and input validation. Use when securing PHP apps against SQL injection, XSS, or weak password storage. (triggers: **/*.php, pdo, password_hash, htmlentities, filter_var)
php-language
Apply core PHP language standards and modern 8.x features. Use when working with PHP 8.x features like enums, fibers, readonly properties, or named arguments. (triggers: **/*.php, declare, readonly, match, constructor, promotion, types)
php-error-handling
Implement modern PHP error and exception handling patterns. Use when implementing exception hierarchies, error handlers, or custom exceptions in PHP. (triggers: **/*.php, try, catch, finally, Throwable, set_exception_handler)
php-concurrency
Implement concurrency and non-blocking I/O in modern PHP. Use when implementing concurrent requests, async processing, or non-blocking I/O in PHP. (triggers: **/*.php, Fiber, suspend, resume, non-blocking, async)
php-best-practices
Write PHP following best practices, PSR standards, and code quality guidelines. Use when writing PHP following PSR standards, SOLID principles, or improving code quality. (triggers: **/*.php, psr-12, camelCase, PascalCase, dry, solid)
nextjs-upgrade
Next.js version migrations using official guides and codemods. Use when migrating a Next.js project to a new major version using codemods. (triggers: package.json, next upgrade, migration guide, codemod)
nextjs-server-components
Build async React Server Components and place 'use client' boundaries at leaf nodes for interactivity in Next.js App Router. Use when deciding RSC vs Client Component, composing server data into client wrappers, or fixing hydration errors. (triggers: app/**/*.tsx, src/app/**/*.tsx, app/**/*.jsx, src/app/**/*.jsx, use client, Server Component, Client Component, hydration)
nextjs-state-management
Apply best practices for managing URL, server, and client state in Next.js applications. Use when choosing between URL params, SWR/TanStack Query, Zustand, or Context for state, or when fixing hydration mismatches from localStorage. (triggers: **/hooks/*.ts, **/store.ts, **/components/*.tsx, useState, useContext, zustand, redux)
nextjs-styling
Implement zero-runtime CSS with Tailwind, CSS Modules, and the cn() utility for RSC-compatible styling in Next.js. Use when choosing a styling library, creating dynamic class utilities, or optimizing fonts with next/font. (triggers: **/*.css, tailwind.config.ts, **/components/ui/*.tsx, tailwind, css modules, styled-components, clsx, cn)
nextjs-testing
Write Vitest unit tests with React Testing Library and Playwright E2E tests for Next.js App Router projects. Use when testing components with RTL, mocking APIs with MSW, or creating Playwright user flow tests. (triggers: **/*.test.{ts,tsx}, cypress/**, tests/**, vitest, playwright, msw, testing-library)
nextjs-tooling
Configure Next.js build tooling, deployment, and developer workflow. Use when setting up Turbopack, standalone Docker output, bundle analysis, CI caching, environment variable validation, or ESLint integration for Next.js projects. (triggers: next.config.js, package.json, Dockerfile, turbopack, output, standalone, lint, telemetry)
typescript-language
Modern TypeScript standards for type safety and maintainability. Use when working with types, interfaces, generics, enums, unions, or tsconfig settings. (triggers: **/*.ts, **/*.tsx, tsconfig.json, type, interface, generic, enum, union, intersection, readonly, const, namespace)
typescript-best-practices
Idiomatic TypeScript patterns for clean, maintainable code. Use when writing or refactoring TypeScript classes, functions, modules, or async logic. (triggers: **/*.ts, **/*.tsx, class, function, module, import, export, async, promise)
JavaScript Tooling
Development tools, linting, and testing for JavaScript projects.
JavaScript Language Patterns
Modern JavaScript (ES2022+) patterns for clean, maintainable code.
JavaScript Best Practices
Idiomatic JavaScript patterns and conventions for maintainable code.
android-legacy-security
Harden Intent handling, WebView configuration, and FileProvider access in Android apps. Use when securing Intent extras, configuring WebViews, or exposing files via FileProvider. (triggers: **/*Activity.kt, **/*WebView*.kt, AndroidManifest.xml, Intent, WebView, FileProvider, javaScriptEnabled)
common-ui-design
Create distinctive, production-grade frontend UI with bold aesthetic choices. Use when building web components, pages, interfaces, dashboards, or applications in any framework (React, Next.js, Angular, Vue, HTML/CSS). Triggers: 'build a page', 'create a component', 'design a dashboard', 'landing page', 'UI for', 'build a layout', 'make it look good', 'improve the design', build UI, create interface, design screen
common-tdd
Enforces Test-Driven Development (Red-Green-Refactor). Use when writing unit tests, implementing TDD, or improving test coverage for any feature. (triggers: **/*.test.ts, **/*.spec.ts, **/*_test.go, **/*Test.java, **/*_test.dart, **/*_spec.rb, tdd, unit test, write test, red green refactor, failing test, test coverage)
common-system-design
Universal architectural standards for robust, scalable systems. Use when designing new features, evaluating architecture, or resolving scalability concerns. (triggers: architecture, design, system, scalability)
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