Skip to content
TrustedSkillsbeta
Back to all skills

Javascript Unit Testing

Listed
el-feo·vlatest·backend·MIT

Helps with JavaScript, testing as part of developing backend services and APIs workflows.

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 el-feo/ai-context --skill javascript-unit-testing -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

el-feo

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 failed 1 of 6 checks. A failure is not proof of bad intent; it means something in the code needs a human to look at it before you run it.

  • No undeclared network calls: failed

    Contacts 1 host that is neither well-known infrastructure nor declared in the skill's frontmatter: custom.com.

    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.

    Hosts contacted

    custom.comundeclared

    What it found

    • plugins/js-ts/skills/javascript-unit-testing/references/EXAMPLES.md:748contacts custom.com
      await isWebsiteAlive(mockNetwork, 'http://custom.com');
    • plugins/js-ts/skills/javascript-unit-testing/references/EXAMPLES.md:750contacts custom.com
      expect(mockNetwork.fetchUrlText).toHaveBeenCalledWith('http://custom.com');

  • 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 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 el-feo/ai-context at ae77f01b54.

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

Commit
ae77f01b54
Manifest
plugins/js-ts/skills/javascript-unit-testing/SKILL.md
Scanned
3 files, 2,620 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 allows AI agents to generate and execute JavaScript unit tests. It can create test suites for existing code, verify functionality against provided specifications, and identify potential bugs or regressions in JavaScript projects. The agent can also assist with debugging failed tests by providing insights into the causes of errors.

When to use it

  • Automated Testing: Generate a suite of unit tests for a new JavaScript module or component.
  • Regression Prevention: Create tests before refactoring existing code to ensure no functionality is broken.
  • Code Verification: Validate that a piece of JavaScript code meets specific requirements or specifications.
  • Debugging Assistance: Help identify the root cause of failing unit tests by analyzing error messages and code behavior.

Key capabilities

  • Generates JavaScript Unit Tests
  • Executes Test Suites
  • Identifies Bugs/Regressions
  • Provides Debugging Insights

Example prompts

  • "Generate a Jest test suite for this function: function add(a, b) { return a + b; }"
  • "Write unit tests to verify that the calculateTotal() function returns the correct sum of items in an array."
  • “Debug why my Mocha tests are failing on this file.”

Tips & gotchas

The agent's effectiveness depends on clear and concise code or specifications. Providing context about expected behavior will improve test generation accuracy.