packageJson — community packageJson, apex-language-support, community, ide skills, Claude Code, Cursor, Windsurf

v1.0.0
GitHub

About this Skill

Ideal for Node.js Agents requiring standardized package management and npm package integration. experimental, do not use

forcedotcom forcedotcom
[7]
[2]
Updated: 3/3/2026

Agent Capability Analysis

The packageJson skill by forcedotcom is an open-source community AI agent skill for Claude Code and other IDE workflows, helping agents execute tasks with better context, repeatability, and domain-specific guidance.

Ideal Agent Persona

Ideal for Node.js Agents requiring standardized package management and npm package integration.

Core Value

Empowers agents to manage package dependencies, validate package naming conventions, and handle type definitions for extensions, utilizing npm packages and bundled dist files for web-enabled extensions.

↓ Capabilities Granted for packageJson

Validating package names against @salesforce conventions
Managing extension dependencies with types prop
Configuring browser settings for web-enabled extensions

! Prerequisites & Limits

  • Requires npm package compatibility
  • Experimental and not recommended for production use
  • Limited to packages following @salesforce naming conventions
Labs Demo

Browser Sandbox Environment

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Experience this Agent in a zero-setup browser environment powered by WebContainers. No installation required.

Boot Container Sandbox

packageJson

Install packageJson, an AI agent skill for AI agent workflows and automation. Works with Claude Code, Cursor, and Windsurf with one-command setup.

SKILL.md
Readonly

Name

any package that's not an npm package should be named @salesforce/foo (whether it actually published to npm or not) don't rename packages, but do tell the user when stuff doesn't match the rules

types

on an extension, you only need a types prop if your extension will be an extensionDependency of some other extension.

probably not necessary for non-extension packages.

browser

only for web-enabled extensions. Must point to a bundled dist file

npm packages

packages that publish to npm should have a files property in the package.json

scripts

See wireit skill

dependencies

use * as the version for anything that's another package in this repo

devDependencies

packages should not duplicate devDependencies that exist at the top level of the repo.

vscode "contributes"

Tips

  • anything in commands will appear in command palette. If you don't want that, you have to never or use some when under commandPalette
  • commands need a unique ID, 2 extensions contributing the same config will produce a UI warning
  • never create a "default:true" boolean configuration (it's hard to override user/workspace)

FAQ & Installation Steps

These questions and steps mirror the structured data on this page for better search understanding.

? Frequently Asked Questions

What is packageJson?

Ideal for Node.js Agents requiring standardized package management and npm package integration. experimental, do not use

How do I install packageJson?

Run the command: npx killer-skills add forcedotcom/apex-language-support. It works with Cursor, Windsurf, VS Code, Claude Code, and 19+ other IDEs.

What are the use cases for packageJson?

Key use cases include: Validating package names against @salesforce conventions, Managing extension dependencies with types prop, Configuring browser settings for web-enabled extensions.

Which IDEs are compatible with packageJson?

This skill is compatible with Cursor, Windsurf, VS Code, Trae, Claude Code, OpenClaw, Aider, Codex, OpenCode, Goose, Cline, Roo Code, Kiro, Augment Code, Continue, GitHub Copilot, Sourcegraph Cody, and Amazon Q Developer. Use the Killer-Skills CLI for universal one-command installation.

Are there any limitations for packageJson?

Requires npm package compatibility. Experimental and not recommended for production use. Limited to packages following @salesforce naming conventions.

↓ How To Install

  1. 1. Open your terminal

    Open the terminal or command line in your project directory.

  2. 2. Run the install command

    Run: npx killer-skills add forcedotcom/apex-language-support. The CLI will automatically detect your IDE or AI agent and configure the skill.

  3. 3. Start using the skill

    The skill is now active. Your AI agent can use packageJson immediately in the current project.

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