Kotlin Skills

kotlin-backend-agent-skills/.agents/skills/ci-cd-containerization-advisor

Design reproducible build, image, and deployment pipelines for Kotlin plus Spring applications, including CI verification, layered containers, rollout safety,…

kotlin-backend-agent-skills/.agents/skills/configuration-properties-profiles-kotlin-safe

Design and diagnose Spring configuration, profiles, and `@ConfigurationProperties` binding for Kotlin applications. Use when property binding fails,…

kotlin-backend-agent-skills/.agents/skills/dependency-conflict-resolver

Diagnose and resolve Gradle and Spring classpath conflicts, version drift, and binary incompatibilities in Kotlin applications. Use when `NoSuchMethodError`,…

kotlin-backend-agent-skills/.agents/skills/domain-decomposition-api-design-advisor

Decompose business scope into bounded contexts, module or service boundaries, workflows, and API contracts before implementation begins. Use when shaping a new…

kotlin-backend-agent-skills/.agents/skills/error-model-validation-architect

Design and implement consistent API validation and error-handling behavior for Kotlin plus Spring services. Use when defining error payloads, mapping framework…

kotlin-backend-agent-skills/.agents/skills/gradle-kotlin-dsl-doctor

Generate, debug, and repair Kotlin + Spring Gradle builds with minimal, compatible changes. Use when `build.gradle.kts` or `settings.gradle.kts` is failing,…

kotlin-backend-agent-skills/.agents/skills/integration-resilience-engineer

Design resilient HTTP, messaging, and scheduled integrations for Kotlin plus Spring services with explicit timeout budgets, retries, idempotency, circuit…

kotlin-backend-agent-skills/.agents/skills/jackson-kotlin-serialization-specialist

Diagnose and design JSON serialization and deserialization behavior for Kotlin plus Jackson in Spring applications. Use when DTOs fail to deserialize, default…

kotlin-backend-agent-skills/.agents/skills/java-kotlin-migration-assistant

Migrate Java code to Kotlin in Spring-based codebases without changing behavior, public contracts, framework compatibility, or binary assumptions unless…

kotlin-backend-agent-skills/.agents/skills/jpa-spring-data-kotlin-mapper

Model Kotlin persistence code correctly for Spring Data JPA and Hibernate, including entity design, relationships, fetch plans, repository queries, lazy…

kotlin-agent-skills/skills/kotlin-backend-jpa-entity-mapping

Kotlin's data class is natural for DTOs but dangerous for JPA entities. Hibernate relies on identity semantics that data class breaks: equals / hashCode over all fields corrupts Set / Map membership after state changes, and auto-generated copy() creates detached duplicates of managed entities.

kotlin-backend-agent-skills/.agents/skills/kotlin-idiomatic-refactorer-spring-aware

Refactor Kotlin code toward clearer, more idiomatic design without breaking Spring behavior, serialization, persistence, or public contracts. Use when…

kotlin-backend-agent-skills/.agents/skills/kotlin-spring-proxy-compatibility

Diagnose and prevent Kotlin plus Spring proxy failures around `@Transactional`, `@Cacheable`, `@Async`, method security, retry, configuration proxies, and JPA…

kotlin-agent-skills/skills/kotlin-tooling-agp9-migration

Android Gradle Plugin 9.0 makes the Android application and library plugins incompatible with the Kotlin Multiplatform plugin in the same module. This skill guides you through the migration.

kotlin-agent-skills/skills/kotlin-tooling-cocoapods-spm-migration

Migrate KMP projects from CocoaPods (kotlin("native.cocoapods")) to Swift Package Manager (swiftPMDependencies DSL) — replaces pod() with swiftPackage(),…

kotlin-agent-skills/skills/kotlin-tooling-immutable-collections-0-5-x-migration

Migrate Kotlin (and Java) code from kotlinx.collections.immutable 0.3.x / 0.4.x to the latest 0.5.x. The 0.5.x line renames every copy-returning method on…

kotlin-agent-skills/skills/kotlin-tooling-java-to-kotlin

Convert Java source files to idiomatic Kotlin using a disciplined 4-step conversion methodology with 5 invariants checked at each step. Supports framework-aware conversion that handles annotation site targets, library idioms, and API preservation.

kotlin-agent-skills/skills/kotlin-tooling-native-build-performance

Diagnoses and fixes slow Kotlin/Native compilation and linking in Kotlin Multiplatform projects that target iOS. Use when the user reports slow iOS or…

kotlin-backend-agent-skills/.agents/skills/observability-integrator

Design actionable observability for Kotlin plus Spring services across logs, metrics, tracing, and health endpoints. Use when instrumenting a service,…

kotlin-backend-agent-skills/.agents/skills/performance-concurrency-advisor

Analyze and improve performance, throughput, latency, and concurrency behavior in Kotlin plus Spring services using real evidence from metrics, traces, SQL,…

kotlin-backend-agent-skills/.agents/skills/production-incident-responder

Guide production incident response for Kotlin plus Spring services from first alert through mitigation, diagnosis, and follow-up. Use when error rates spike,…

kotlin-backend-agent-skills/.agents/skills/project-context-ingestion

Inspect a Kotlin + Spring repository before making changes or answering implementation, debugging, build, architecture, or review questions. Use when the agent…

kotlin-backend-agent-skills/.agents/skills/schema-migration-planner

Plan safe database schema evolution and zero-downtime change rollout for Kotlin plus Spring systems using Flyway, Liquibase, or equivalent migration tooling.…

kotlin-backend-agent-skills/.agents/skills/spring-context-di-reasoning

Diagnose Spring application context startup failures, bean graph problems, missing or duplicate beans, circular dependencies, conditional auto-configuration…

kotlin-backend-agent-skills/.agents/skills/spring-kotlin-code-review

Review Kotlin + Spring changes for behavioral regressions, transaction and proxy bugs, API and serialization mistakes, persistence risks, security issues,…

kotlin-backend-agent-skills/.agents/skills/spring-mvc-webflux-api-builder

Design and generate Kotlin Spring HTTP APIs with correct controller signatures, DTOs, validation, serialization assumptions, error handling, and web tests. Use…

kotlin-backend-agent-skills/.agents/skills/spring-security-configurator-auditor

Design and audit Spring Security configurations for Kotlin plus Spring services, including filter chains, JWT or OAuth2 resource server setup, method security,…

kotlin-backend-agent-skills/.agents/skills/stacktrace-log-triage

Diagnose Kotlin + Spring failures from stack traces, startup logs, runtime logs, and related metric anomalies, then separate root cause from wrapper exceptions…

kotlin-backend-agent-skills/.agents/skills/test-suite-builder

Design and generate layered Kotlin + Spring tests that balance speed, realism, and regression value across unit, slice, and integration levels. Use when adding…

kotlin-backend-agent-skills/.agents/skills/transaction-consistency-designer

Design safe transaction boundaries, rollback behavior, idempotency, locking, and consistency strategies for Kotlin + Spring business workflows. Use when a…