Kotlin Idiomatic Patterns
Writes and reviews Kotlin code using null safety, immutability, sealed types, coroutines and DSL idioms.
- Repository
- affaan-m/ECC
- Stars
- 295,127
- Licence
- MIT
- Files
- 1 file
What it does
When installed, the agent follows a set of Kotlin style and design conventions when writing, reviewing or refactoring Kotlin code. It favors non-nullable types and the safe-call and Elvis operators, immutable values and data classes with copy(), sealed classes for exhaustive results, structured concurrency with coroutines and Flow, extension functions, and type-safe DSL builders. It also covers Gradle Kotlin DSL build configuration. The guidance is provided as text and examples in Spanish; it does not run anything by itself.
Great for
- Developers writing new Kotlin or Android/JVM services who want idiomatic code
- Teams doing code reviews who want consistent Kotlin conventions applied
- Engineers refactoring older Java-style Kotlin toward sealed types and coroutines
Skip it if
- Non-Kotlin projects, where the guidance would not apply
- Experienced Kotlin teams with established style guides that may conflict with these conventions; the agent may override local standards unless told otherwise
Try asking
- “Review this Kotlin service class and suggest null-safety and immutability improvements”
- “Refactor this API response handling to use a sealed interface for errors”
- “Write a coroutine-based function that fetches two resources in parallel”
- “Set up a type-safe DSL builder for this configuration code”
Install in 3 steps
- 1
Download the skill
The ZIP contains the 1 original files, the MIT licence and an attribution note.
kotlin-patterns.zip - 2
Add it to your agent
Claude Code (all projects)
mkdir -p ~/.claude/skills && unzip kotlin-patterns.zip -d ~/.claude/skills/Claude Code / Agent SDK (this project only)
mkdir -p .claude/skills && unzip kotlin-patterns.zip -d .claude/skills/Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.
- 3
Ask for the task
No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.
Get better results
- Name the target Kotlin version and framework (e.g. Android, Ktor, Spring) so the suggestions match your stack.
- Ask for the rationale behind a suggestion if you are unsure whether it fits your codebase's conventions.
- Pair with your project's linter or compiler checks to verify the agent's changes.
What's inside
- SKILL.md
Redistributed unmodified from affaan-m/ECC under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.