Context-efficient codebase exploration using AST analysis. Use when exploring Kosmos architecture, understanding code structure, or preparing documentation for AI programmers.
Helps write, migrate, and improve Kotlin tests using the Kotest testing framework. Covers test spec styles (FunSpec, DescribeSpec, BehaviorSpec, etc.), assertions (shouldBe,…
Guides unit and integration testing with Kotest for Kotlin/Android. Use when writing tests for Kotlin code, testing ViewModels, coroutines, or Compose UI.
Write Kotlin code for Android following best practices. Use when developing with Jetpack Compose, Android SDK, or Kotlin projects. Covers coroutines, state management, and tooling.
Kotlin avancé pour Android fintech. Coroutines, Flows, Sealed classes, inline functions, delegates, reified types.
WHEN: Android Kotlin code review, Jetpack Compose patterns, Coroutines/Flow checks, ViewModel structure analysis WHAT: Compose best practices + Coroutines patterns + State…
Sealed class configuration pattern for Kotlin applications with environment-specific settings
Use when reviewing or designing Gradle build structure for KMP projects — shared build logic, convention plugins, version catalogs, Android KMP plugin usage, source-set…
Kotlin/Gradle build, compilation, and dependency error resolution specialist. Fixes build errors, Kotlin compiler errors, and Gradle issues with minimal changes.
Kotlin Compiler Plugin の開発・レビューを支援するスキル。 30+ の既存プラグインの調査データ (Extension Point、設計パターン、ソースコード URL) を参照し、 やりたいことに最適な Extension Point の選択、設計パターンの提案、前例のソースコード参照を行う。 deepwiki MCP…
Generate comprehensive @Preview functions for Jetpack Compose composables. Analyzes component parameters, states, and dependencies to create previews covering all visual states,…
Strict technical code review for Kotlin Jetpack Compose. Analyzes @Composable functions for recomposition issues, stability violations, memory leaks, state management…
Use when kotlin coroutines for structured concurrency including suspend functions, coroutine builders, Flow, channels, and patterns for building efficient asynchronous code with…
Expert patterns for Kotlin Coroutines and Flow, covering structured concurrency, error handling, and testing.
中文优先：用于Kotlincoroutinesflows相关任务，帮助识别、设计、实现或验证对应工作流。English keywords: Kotlin Coroutines and Flow patterns for Android and KMP — structured concurrency, Flow operators, StateFlow,…
Use when writing or reviewing Kotlin code that stores CoroutineScope, launches from init/non-suspending APIs, calls runBlocking, or catches broad exceptions around suspend calls.
Use when implementing or reviewing KMP data layers, including repositories, data sources, source-of-truth design, API exposure, conflict resolution, error handling, and main-safe…
[Extends backend-developer] Senior Kotlin specialist for JVM, Native, and KMP. Use for coroutines, Ktor, kotlinx.serialization, Kotlin Multiplatform shared logic, and…
Kotlin development guidelines with best practices for clean code, naming conventions, function design, and data handling
Use when domain-specific language design in Kotlin using type-safe builders, infix functions, operator overloading, lambdas with receivers, and patterns for creating expressive,…
中文优先：用于Kotlinexposed模式相关任务，帮助识别、设计、实现或验证对应工作流。English keywords: JetBrains Exposed ORM patterns including DSL queries, DAO pattern, transactions, HikariCP connection pooling,…
Use when writing or reviewing Kotlin StateFlow/SharedFlow/Channel choices, sentinel default values, stateIn placement, WhileSubscribed staleness, or MutableStateFlow update…
Use when working with Flow, StateFlow, SharedFlow, or Channel in Kotlin — including cold vs hot stream decisions, operator chains, lifecycle-safe collection, UI state management,…
Guides writing idiomatic, functional-style Kotlin code using built-in language features. Use when asked to write, review, or refactor Kotlin code for immutability, pure functions,…
Write Kotlin that uses null safety, data classes, and coroutines as designed, with clean Java interop. Use when writing Kotlin or migrating Java code and habits to it.
Use when Codex writes, refactors, reviews, or designs non-Android JVM Kotlin/Java code. Keywords and triggers: Kotlin, Java, JVM, API design, architecture boundaries, module…
Use when reviewing implemented Kotlin Multiplatform / Compose Multiplatform code for architecture consistency, business-logic placement, state correctness, concurrency, Compose…
Refactor discipline for existing codebases. Enforces scope control, migration safety, compatibility, observability, and tests to keep refactors reviewable and low-risk.
Ktor 服务器模式，包括路由 DSL、插件、身份验证、Koin DI、kotlinx.serialization、WebSockets 和 testApplication 测试。
Java 경험자를 위한 Kotlin 학습 멘토. 커리큘럼 기반 1:1 학습 지도를 통해 Kotlin+Spring 교육 준비를 돕습니다. Java와 비교하며 Kotlin 개념을 설명하고 실습을 지도합니다.
KMP/CMP shared business logic, Compose Multiplatform, expect/actual, Ktor, SQLDelight, and platform-specific implementations.
WHEN: Kotlin Multiplatform (KMP) project review, expect/actual patterns, shared module structure, iOS interop WHAT: Module structure analysis + expect/actual validation + platform…
Complete UI layer testing for KMP: semantic test tags on composables, Compose UI interaction tests in commonTest (runComposeUiTest, onNodeWithTag, performClick, assertIsDisplayed)…
Use when designing, implementing, or reviewing navigation in Compose Multiplatform projects — route modeling, back stack ownership, argument passing, NavOptions, conditional…
Use when kotlin's null safety system including nullable types, safe calls, Elvis operator, smart casts, and patterns for eliminating NullPointerExceptions while maintaining code…
Kotlin/Spring Boot patterns for Orca service - use when implementing backend features, writing services, repositories, or controllers
Use when designing, implementing, or reviewing Android deep links, web links, and App Links in KMP projects — intent-filter design, host verification, manifest scope, and…
Use when designing, implementing, or reviewing platform-specific integrations in KMP projects, including source-set placement, hierarchical sharing, expect/actual usage, platform…
Use when reviewing KMP architecture, feature proposals, PR structure, layer boundaries, state-holder design, Android entry-point discipline, source-set placement, modularization,…
Use when diagnosing and fixing bugs in a Kotlin Multiplatform project. Focus on root-cause analysis, minimal safe fixes, KMP correctness, UI/state/data/persistence/concurrency…
Use when designing, reviewing, or refactoring module boundaries in KMP or Android projects — feature, data, app, and common modules, dependency direction, visibility control, and…
Use when choosing, implementing, or reviewing state-holder patterns in a KMP project — ViewModel, shared presenter, MVI, or StateFlow-in-common — including effect handling,…
Kotlin and Android/KMP code reviewer. Reviews Kotlin code for idiomatic patterns, coroutine safety, Compose best practices, clean architecture violations, and common Andr — from…
Kotlin coding rules from ai-toolkit: coding-style, frameworks, patterns, security, testing. Triggers: .kt, .kts, build.gradle.kts, Ktor, Jetpack Compose, coroutines, kotlinx.
Use when creating Room entities for Kotlin/Android apps that mirror Django/PostgreSQL backend schemas.
Provides idiomatic Kotlin implementation patterns including coroutine concurrency, Flow stream handling, multiplatform architecture, Compose UI construction, Ktor server — from…
Expert Kotlin developer specializing in Kotlin 2.0, Kotlin Multiplatform Mobile (KMP), Coroutines, and Ktor for building modern cross-platform applications and backend services.
Kotlin/Spring Boot 3.x patterns - use for backend services, REST APIs, dependency injection, controllers, and service layers
WHEN: Spring Boot + Kotlin, Ktor backend review, coroutine-based server, WebFlux/R2DBC pattern checks WHAT: Spring Kotlin idioms + Coroutines integration + WebFlux patterns + Data…
Kotlin testing with JUnit 5, MockK, Spring test slices, and Testcontainers. Provides mocking patterns, test slice selection, and TDD workflow for Spring Boot + Kotlin.
Use when designing, implementing, or reviewing tests in KMP projects — unit tests, instrumented tests, Compose Multiplatform UI tests, test doubles, test strategy, stability,…
Add Timber logging statements to Kotlin Android files. Analyzes code logic to insert debug, info, warning, and error logs at function entry/exit, conditionals, try-catch blocks,…
Use when working with JetBrains Kotlin Toolchain v0.11.x, formerly Amper, including module.yaml, project.yaml, module templates, libs.versions.toml, the kotlin CLI wrapper,…
Migrates Kotlin Multiplatform (KMP) projects to Android Gradle Plugin 9.0+. Handles plugin replacement (com.android.kotlin.multiplatform.library), module splitting, DSL migration,…
Migrate KMP projects from CocoaPods (kotlin("native.cocoapods")) to Swift Package Manager (swiftPMDependencies DSL) — replaces pod() with swiftPackage(), transforms cocoapods.*…
Use when writing or reviewing Kotlin type declarations to choose @JvmInline value class over data class where appropriate, including Compose stability implications.
Use when designing, implementing, or reviewing adaptive Compose UI for KMP or Android projects — window-size layouts, adaptive navigation, canonical layouts, multi-window support,…
Use when designing, implementing, or reviewing shared UI in Compose Multiplatform projects, including state-driven architecture, composable decomposition, layout/modifier…
Smart Kotlin unit testing with auto-detection, coverage analysis, and AI edge cases. Use when generating tests for biz/ layer classes, analyzing test coverage gaps, or discovering…
Generates business logic layer components (use cases, repository interfaces, business models, validators) for go-kratos microservices following Clean Architecture.