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Skill Builder

Checked
jwynia·vlatest·agents

Skill Builder by jwynia allows you to easily create and customize AI agent skills for streamlined workflows and automated tasks.

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 jwynia/agent-skills --skill skill-builder -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

jwynia

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 jwynia/agent-skills at e02ec7e226.

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

Commit
e02ec7e226
Manifest
skills/general/meta/skill-builder/SKILL.md
Scanned
6 files, 2,965 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

The skill-builder allows AI agents to dynamically discover, install, and manage additional capabilities from a registry. It enables agents to expand their functionality on-demand by integrating new tools or logic modules without requiring manual code updates.

When to use it

  • Deploying an agent that needs to adapt to changing task requirements over time.
  • Creating modular systems where core logic remains stable while specific features are swapped out.
  • Building agents that must access specialized libraries or APIs not included in the base environment.
  • Automating the setup of complex workflows by chaining together multiple distinct skills.

Key capabilities

  • Dynamic Discovery: Automatically locates available skills within a configured registry.
  • On-Demand Installation: Fetches and installs new skill modules directly into the agent's runtime.
  • Modular Architecture: Supports swapping individual components to alter agent behavior without redeploying the whole system.

Example prompts

  • "Install the 'data-analyzer' skill so I can process CSV files."
  • "Discover all available skills for web scraping and install the most efficient one."
  • "Update my current configuration by adding a new translation module from the registry."

Tips & gotchas

Ensure your agent has network access to the skill registry URL, as installation requires fetching external resources. Be mindful of version compatibility; installing a skill that conflicts with existing dependencies may cause runtime errors.