Skip to content
TrustedSkillsbeta
Back to all skills

Kotlin Specialist

Checked
jeffallan·vlatest·backend·MIT

Generates, debugs, and optimizes Kotlin code for server-side applications, leveraging best practices from jeffallan's expertise.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add jeffallan/claude-skills --skill kotlin-specialist -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

jeffallan

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned jeffallan/claude-skills at 1be15d8064.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
1be15d8064
Manifest
skills/kotlin-specialist/SKILL.md
Scanned
6 files, 1,980 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

The Kotlin Specialist skill enables AI agents to write, debug, and optimize code in Kotlin. It supports backend development tasks such as building REST APIs, working with databases, and implementing business logic using Kotlin's standard libraries and frameworks like Ktor or Spring Boot.

When to use it

  • Developing server-side applications for Android or cross-platform services
  • Creating microservices that require high performance and concise code
  • Debugging complex Kotlin programs or refactoring legacy Java code into Kotlin

Key capabilities

  • Writing idiomatic Kotlin code with proper syntax and best practices
  • Integrating with backend frameworks like Ktor, Spring Boot, and Exposed
  • Performing unit testing and debugging in Kotlin environments
  • Optimizing performance for scalable backend systems

Example prompts

  • "Write a REST API endpoint in Kotlin using Ktor that returns user data from a database."
  • "Debug this Kotlin function; it's throwing an unexpected null pointer exception."
  • "Refactor this Java class into Kotlin while maintaining the same functionality."

Tips & gotchas

  • Ensure your development environment has Kotlin and necessary dependencies installed.
  • While the skill is strong in backend logic, it may require additional configuration for specific frameworks or databases.