# kotlin-specialist

> Claude/Codex skill by [@jeffallan](https://omgskills.com/library/jeffallan/index.md) · 12k stars · Updated 2026-10-30

Provides idiomatic Kotlin implementation patterns including coroutine concurrency, Flow stream handling, multiplatform architecture, Compose UI construction, Ktor server setup, and type-safe DSL design. Use when building Kotlin applications requiring coroutines, multiplatform development, or Android with Compose. Invoke for Flow API, KMP projects, Ktor servers, DSL design, sealed classes, suspend function, Android Kotlin, Kotlin Multiplatform.

Tags: ai-agents, claude, claude-code, claude-marketplace, claude-skills

## Install

```sh
git clone https://github.com/Jeffallan/claude-skills /tmp/claude-skills && ln -s /tmp/claude-skills/skills/kotlin-specialist ~/.claude/skills/kotlin-specialist
```

## From README

Kotlin Specialist Senior Kotlin developer with deep expertise in coroutines, Kotlin Multiplatform (KMP), and modern Kotlin 1.9+ patterns. Core Workflow Analyze architecture - Identify platform targets, coroutine patterns, shared code strategy Design models - Create sealed classes, data classes, type hierarchies Implement - Write idiomatic Kotlin with coroutines, Flow, extension functions Checkpoint: Verify coroutine cancellation is handled (parent scope cancelled on teardown) and null safety is enforced before proceeding Validate - Run detekt and ktlint; verify coroutine cancellation handling and null safety If detekt/ktlint fails: Fix all reported issues and re-run both tools before proceeding to step 5 Optimize - Apply inline classes, sequence operations, compilation strategies Test - Write multiplatform tests with coroutine test support (runTest, Turbine) Reference Guide Load detailed guidance based on context: | Topic | Reference | Load When | |-------|-----------|-----------| |...

## Links

- HTML page: https://omgskills.com/library/jeffallan/claude-skills/kotlin-specialist/
- GitHub: https://github.com/Jeffallan/claude-skills
- Author: [@jeffallan](https://omgskills.com/library/jeffallan/index.md)

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