Overview
kotlin-specialist is an open-source backend skill for Claude Code and compatible agents, published by Jeffallan. Its author describes it as: “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 build…”. The project has 11k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add Jeffallan/claude-skills`.
What kotlin-specialist does
Senior Kotlin developer with deep expertise in coroutines, Kotlin Multiplatform (KMP), and modern Kotlin 1.9+ patterns.
What’s inside
The SKILL.md for kotlin-specialist is organised into these sections:
- Core Workflow
- Reference Guide
- Key Patterns
- Sealed Classes for State Modeling
- Coroutines & Flow
- Null Safety
- Scope Functions
- Constraints
- MUST DO
- MUST NOT DO
- Output Templates
- Knowledge Reference
Installation
Add kotlin-specialist to your agent with:
/plugin marketplace add Jeffallan/claude-skillsReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
License
kotlin-specialist is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in Jeffallan/claude-skills, an established project with 11,060 GitHub stars
- Works with Claude Code
- Actively maintained — repository updated in the last 90 days
Author
Topics
Alternatives to kotlin-specialist
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Frequently asked questions
- What does kotlin-specialist do?
- 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.
- How do I install kotlin-specialist?
- Run /plugin marketplace add Jeffallan/claude-skills in your agent, then reload your skills. Review the source at https://github.com/Jeffallan/claude-skills before installing.
- Is kotlin-specialist free to use?
- Yes. kotlin-specialist is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does kotlin-specialist work with?
- kotlin-specialist lists Claude Code — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does kotlin-specialist come from?
- kotlin-specialist ships inside Jeffallan/claude-skills, a repository that contains 41 catalogued skills in total. The repository's 11,060 GitHub stars apply to that whole collection, not to this skill on its own.