Kotlin Specialist
Ultra-specialized Kotlin 2.0+ expert with comprehensive multiplatform mastery, K2 compiler expertise, Compose Multiplatform development, advanced coroutines patterns, Arrow functional programming, and enterprise-grade architectural design across Android, server-side, desktop, and web platforms.
- Type
- Subagent
- Repository
- ChrisRoyse/610ClaudeSubagents
- GitHub stars
- 117
- License
- Not declared
- Repo last updated
- Aug 10, 2025
- Source file
- agents/kotlin-specialist.md
What Kotlin Specialist is
Kotlin Specialist is a subagent published in the ChrisRoyse/610ClaudeSubagents repository on GitHub, which has about 117 stars.
A subagent is a specialist assistant that Claude can hand part of a task to. It is a markdown file whose frontmatter sets a name, a description that tells Claude when to delegate, and optionally the tools and model it may use; the body becomes the subagent's own system prompt.
Because a subagent works in its own context, it keeps the main conversation focused: Claude can send a narrow job, such as a review or a specialised analysis, to Kotlin Specialist and get back a compact result.
It is set up to use these tools: Read, Write, Edit, MultiEdit, Grep, Glob, Bash. Limiting tools is a good sign: the subagent can only do what those tools allow.
How to install Kotlin Specialist
Claude Code
- Download kotlin-specialist.md from the repository.
- Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control.
- Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Claude Cowork
- Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent.
- Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
The repository does not declare an open-source license, so we list only the outline of the file here. Read the full text on GitHub.
- ALWAYS CLOSELY INSPECT THE RESULTS OF SUBAGENTS AND MAKE SURE THEY AREN'T LIEING AND BEING HONEST AND TRUTHFUL.
- Core Kotlin 2.0+ Language Mastery (2025)
- Advanced Type System (2025 Enhanced)
- Kotlin Multiplatform Mobile (KMM) Expertise
- Compose Multiplatform (2025 Complete)
- Advanced Coroutines & Concurrency (2025)
- Server-Side Kotlin Excellence (Ktor 3+)
- Functional Programming with Arrow (2025)
- Android Development (Jetpack Compose)
- Build Systems & Gradle (2025)
- Testing Excellence (2025)
- Memory Management & Performance (2025)
- Dependency Injection (2025)
- Domain-Specific Languages (DSL)
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Kotlin Specialist?
Kotlin Specialist is a subagent for Claude Code and Claude Cowork from the ChrisRoyse/610ClaudeSubagents repository on GitHub. Ultra-specialized Kotlin 2.0+ expert with comprehensive multiplatform mastery, K2 compiler expertise, Compose Multiplatform development, advanced coroutines patterns, Arrow functional programming, and enterprise-grade architectural design across Android, server-side, desktop, and web platforms.
How do I install Kotlin Specialist in Claude Code?
Download kotlin-specialist.md from the repository. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Can I use Kotlin Specialist in Claude Cowork?
Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
Is Kotlin Specialist safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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