Umbraco Quickstart

If arguments not provided, check what exists and prompt for missing names.

2. Check what exists

Check for Umbraco instance:

find . -name "*.csproj" -exec grep -l "Umbraco.Cms" {} \; 2>/dev/null | head -5

Check for extension projects:

find . -name "umbraco-package.json" 2>/dev/null | head -10

3. Take action

If no Umbraco instance:

• Use the provided name (first argument) or prompt for one
• Create with /package-script-writer [ProjectName]

If no extension:

• Use the provided name (second argument) or prompt for one
• Create with /umbraco-extension-template [ExtensionName]

If extension not registered:

• Register with /umbraco-add-extension-reference [ExtensionName]

4. Warn about optional resources

Check extended workspace (including /add-dir directories) and warn if missing:

If CMS source not found:

⚠ Umbraco CMS source not found in extended workspace.
  For better code generation, add it:
  git clone https://github.com/umbraco/Umbraco-CMS.git
  /add-dir /path/to/Umbraco-CMS/src/Umbraco.Web.UI.Client

If UUI source not found:

⚠ UUI library source not found in extended workspace.
  For UI component reference, add it:
  git clone https://github.com/umbraco/Umbraco.UI.git
  /add-dir /path/to/Umbraco.UI/packages/uui

If testing skills not installed:

⚠ Testing skills not installed.
  To add testing capabilities:
  /plugin install umbraco-cms-backoffice-testing-skills@umbraco-backoffice-marketplace

5. MANDATORY: Enter Plan Mode

Do NOT proceed to building until this step is complete.

1. Tell the user setup is complete and show the login credentials
2. Read PRE-BUILD-PLANNING.md from the umbraco-backoffice skill
3. Ask the user what they want to build

✅ Setup complete! Your extension is ready.

Login: [email protected] / SecurePass1234

What would you like to build? Describe your idea and I'll help you plan the implementation.

Examples:
- "A dashboard that shows recent content changes"
- "A property editor for picking colours"
- "A tree in Settings for managing custom data"

When the user describes what they want:

1. Enter plan mode with /plan
2. Follow the PRE-BUILD-PLANNING.md workflow:
   • Draw ASCII wireframe of the UI
   • Label extension types needed (section, dashboard, workspace, etc.)
   • Identify UUI components
   • Map data flow (contexts, APIs)
3. Identify which sub-skills to invoke
4. Include these MANDATORY sections in the plan document (they will be actioned after plan approval):

## Pre-Build Setup
- [ ] Load `/umbraco-backoffice` skill for best practices and examples

## Implementation
[Your implementation steps here - skills to invoke, files to create]

## Post-Build Validation (REQUIRED - DO NOT SKIP)

### Step 1: Initial Build
- [ ] Run `npm run build` in extension directory
- [ ] Verify build completes without errors

### Step 2: Code Review
- [ ] Spawn `umbraco-extension-reviewer` agent
- [ ] Fix all Critical/High severity issues

### Step 3: Rebuild (if fixes were made)
- [ ] Run `npm run build` again
- [ ] Verify build still succeeds

### Step 4: Restart Umbraco
- [ ] Stop the running Umbraco instance
- [ ] Run `dotnet run` to restart
- [ ] Wait for startup to complete

### Step 5: Browser Validation
Check if browser automation is available (any of: `dev-browser` skill, Playwright MCP, Claude computer use).

If browser automation IS available:
- [ ] Navigate to backoffice login (http://localhost:5000/umbraco)
- [ ] Login with credentials
- [ ] Navigate to extension location
- [ ] Verify: no console errors, UI renders, interactions work
- [ ] Take screenshot of working extension

If NO browser automation available, output manual testing steps for user.

5. Exit plan mode only when wireframe AND all validation sections are in the plan

⚠️ Do NOT generate code until planning is complete and approved by the user.

Goal

Get the user to a working, validated extension. Follow the workflow: PLAN → BUILD → VALIDATE. Don't just report - take action.

Default Credentials

When creating an Umbraco instance, these defaults are used:

• Email: [email protected]
• Password: SecurePass1234

These are safe for local development and don't contain special characters that cause escaping issues.

Example

/umbraco-quickstart MyUmbracoSite MyDashboard

This will:

1. Create Umbraco instance (e.g. "MyUmbracoSite") if not exists
2. Create extension (e.g. "MyDashboard")
3. Register the extension with the Umbraco project
4. Warn about missing CMS/UUI source if applicable
5. Enter plan mode to design the extension (wireframe, extension types, validation steps)
6. Build using identified sub-skills
7. Run npm run build
8. Run umbraco-extension-reviewer and fix issues
9. Rebuild if fixes were made
10. Restart Umbraco
11. Browser validation (automatic if browser automation available, manual steps otherwise)

Login with: [email protected] / SecurePass1234