Skip to content
TrustedSkillsbeta
Back to all skills

Scala Expert

Checked
personamanagmentlayer·vlatest·backend·Apache-2.0

Provides in-depth Scala programming expertise, assisting developers with code analysis, debugging, and best practices for efficient development.

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 personamanagmentlayer/pcl --skill scala-expert -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

personamanagmentlayer

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 personamanagmentlayer/pcl at 79ccaa9820.

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

Commit
79ccaa9820
Manifest
stdlib/languages/scala-expert/SKILL.md
Scanned
1 file, 413 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

This skill provides expert guidance for Scala development, covering a wide range of topics from fundamental concepts to advanced reactive systems. It assists with understanding and applying functional programming principles, working with Akka actors and streams, and leveraging libraries like Cats Effect and ZIO. The skill can help developers analyze code, debug issues, and implement best practices for efficient Scala development.

When to use it

  • You're learning Scala and need clarification on core concepts like immutability, pattern matching, or case classes.
  • You’re struggling with functional programming techniques such as higher-order functions, monads, or type classes.
  • You are building reactive systems using Akka actors, streams, or HTTP.
  • You're encountering issues while working with Option, Either, or Try for error handling and null safety.
  • You need help understanding and utilizing traits, mixins, or implicit conversions in your Scala code.

Key capabilities

  • Scala Fundamentals (Immutability, Pattern Matching, Case Classes, Traits & Mixins, Implicit Conversions, For Comprehensions)
  • Functional Programming (Higher-Order Functions, Monads, Functors, Applicatives, Type Classes, Pure Functions)
  • Reactive Systems (Akka Actors, Akka Streams, Akka HTTP, Play Framework, Cats Effect, ZIO)
  • Guidance on using Option and Either for safer code.
  • Explanation of traits and mixins for code reusability.
  • Demonstration of implicit classes (extension methods).

Example prompts

  • "Explain how to use pattern matching in Scala with a practical example."
  • "Can you show me an example of using Akka actors to build a simple reactive system?"
  • "How do I handle potential errors gracefully using Option and Either in Scala?"

Tips & gotchas

  • This skill assumes some basic familiarity with programming concepts.
  • The examples provided use specific libraries (Cats, Akka). Ensure these dependencies are available if you're trying to implement the code directly.
  • To get the most out of this skill, be as specific as possible in your requests and provide relevant code snippets when asking for help.