# Webiny API System Catalog

API, System, 2 abstractions.

- Repository: https://github.com/webiny/webiny-js (8051 stars)
- Category: Engineering
- License: see repository
- Last updated: 2026-10-30
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add webiny/webiny-js --skill webiny-api-system-catalog -g -a claude-code -y`
Codex: `npx skills add webiny/webiny-js --skill webiny-api-system-catalog -g -a codex -y`
Cursor: `npx skills add webiny/webiny-js --skill webiny-api-system-catalog -g -a cursor -y`
Gemini CLI: `npx skills add webiny/webiny-js --skill webiny-api-system-catalog -g -a gemini-cli -y`

## Description

API, System, 2 abstractions. System installation event handlers and use cases.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# API, System

System installation event handlers and use cases.

## How to Use

1. Find the abstraction you need below
2. You MUST read the source file to get the exact interface and types!
3. Import: `import { Name } from "<importPath>";`
4. See `webiny-use-case-pattern` or `webiny-event-handler-pattern` skills for implementation patterns

## Abstractions

---

**Name:** `InstallSystemUseCase`
**Import:** `import { InstallSystemUseCase } from "webiny/api/system"`
**Source:** `@webiny/api-core/features/system/InstallSystem/index.ts`
**Description:** Run system-wide installation.

---

**Name:** `SystemInstalledEventHandler`
**Import:** `import { SystemInstalledEventHandler } from "webiny/api/system"`
**Source:** `@webiny/api-core/features/system/InstallSystem/index.ts`
**Description:** Hook into system lifecycle after the system is installed.

---