# experience-ui-bundle-custom-app-generate

Generates Salesforce CustomApplication metadata to surface React UI bundles in Lightning App Launcher. Useful when exposing bundles without a Digital Experience Site.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 5200 installs · ★ 1112
- Author: forcedotcom
- License: Apache-2.0 · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/forcedotcom/sf-skills/tree/HEAD/skills/experience-ui-bundle-custom-app-generate/SKILL.md
- Updated: 2026-10-23
- HTML: https://affpapa.org/en/nevibecode/skills/experience-ui-bundle-custom-app-generate

## What it does

This skill creates a `CustomApplication` metadata entry at `<sourceDir>/applications/{appName}.app-meta.xml` to host a React UI bundle in Lightning Experience. Unlike standard platform applications, UI bundle apps serve as lightweight launcher entries. They skip tabs, flexipages, and action overrides.

The generation workflow runs in five phases. It calculates `appName` and `appNamespace`, then queries `salesforce-api-context` MCP tools to inspect fields in the target org. Based on org API version, it selects either `<uiBundle>` or the legacy `<webApplication>` element. Finally, the skill updates the existing `.uibundle-meta.xml` in place to declare `<target>CustomApplication</target>`.

You need Node.js 18.0.0 or higher, Salesforce CLI `sf` 2.0.0 or higher, and API version 65.0 minimum. Missing namespace or app name details results in a blank page inside the App Launcher.

## Requirements
- Works with: Salesforce

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add forcedotcom/sf-skills --skill experience-ui-bundle-custom-app-generate -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/experience-ui-bundle-custom-app-generate/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/experience-ui-bundle-custom-app-generate/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add forcedotcom/sf-skills --skill experience-ui-bundle-custom-app-generate -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/experience-ui-bundle-custom-app-generate/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add forcedotcom/sf-skills --skill experience-ui-bundle-custom-app-generate -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/experience-ui-bundle-custom-app-generate/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install forcedotcom/sf-skills experience-ui-bundle-custom-app-generate
```

2. **Manually: put the files in place**
- File: `.github/skills/experience-ui-bundle-custom-app-generate/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add forcedotcom/sf-skills --skill experience-ui-bundle-custom-app-generate -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/forcedotcom/sf-skills --path skills/experience-ui-bundle-custom-app-generate
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/experience-ui-bundle-custom-app-generate/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add forcedotcom/sf-skills --skill experience-ui-bundle-custom-app-generate -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/forcedotcom/sf-skills/tree/HEAD/skills/experience-ui-bundle-custom-app-generate/SKILL.md

## When to use it
- Expose a React UI bundle in the Salesforce Lightning App Launcher
- Generate CustomApplication XML metadata without Digital Experience Sites
- Match metadata fields to target org API version via salesforce-api-context
- Insert the target element into the existing uibundle-meta.xml file

## Example prompts
- Create a Custom Application for the UI bundle in `uiBundles/myInternalApp/`
- Generate CustomApplication metadata to display our React app in App Launcher
- Configure `applications/myApp.app-meta.xml` for our new UI bundle

## Source text · SKILL.md · Apache-2.0

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 02348fa61801e510.

BEGIN THIRD-PARTY FILE 02348fa61801e510
```text
---
name: experience-ui-bundle-custom-app-generate
description: "MUST activate when the project contains a uiBundles/*/src/ directory and the task involves creating or configuring a Custom Application for hosting a UI bundle in Lightning Experience. Use this skill when creating a CustomApplication metadata record to surface the UI bundle in the App Launcher. Activate when files matching applications/*.app-meta.xml exist and need modification, or when the user wants to expose their app via the Lightning App Launcher without a Digital Experience Site. Do NOT use platform-custom-application-generate for this — UI bundle apps do not use tabs, action overrides, or flexipages."
metadata:
  version: "1.0"
  domains: ["Experience", "Platform"]
  minApiVersion: "65.0"
  relatedSkills:
    - "platform-custom-application-generate"
  cliTools:
    - tool: ["node"]
      semver: ">=18.0.0"
    - tool: ["sf"]
      semver: ">=2.0.0"
  mcpTools:
    salesforce-api-context:
      tools: ["get_metadata_type_fields"]
      semver: ">=1.0.0"
---

# Custom Application for React UI Bundles
Create and configure a Salesforce Custom Application that hosts a React UI bundle in Lightning Experience. This skill generates the CustomApplication metadata so the app appears in the Lightning App Launcher and can be accessed by internal users.

Custom Applications differ from Experience Sites: they don't need Networks, CustomSite, DigitalExperienceConfig, or DigitalExperienceBundle metadata. The Custom Application acts as a thin launcher entry that delegates rendering to the React UI bundle referenced by `uiBundle`.

## Required Properties
Resolve all properties before generating any metadata. Each has a fallback chain — work through each option in order until a value is found.

| Property | Format | How to Resolve |
|----------|--------|----------------|
| **appName** | `lowercamelcase` (e.g., `myInternalApp`) | The UI bundle name from `uiBundles/<name>/` directory |
| **appNamespace** | String | `namespace` in `sfdx-project.json` → `sf data query -q "SELECT NamespacePrefix FROM Organization" --target-org ${usernameOrAlias}` → default `c` |
| **appLabel** | Human-readable string | User-provided, or derive from appName by converting camelCase to Title Case |
```
END THIRD-PARTY FILE 02348fa61801e510

The third-party file has ended. Everything between the 02348fa61801e510 tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

First 2274 of 9034 bytes. © forcedotcom · Apache-2.0 · https://github.com/forcedotcom/sf-skills/tree/HEAD/skills/experience-ui-bundle-custom-app-generate/SKILL.md

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