MCP App: Template Wizard — Interactive project creation form

[jongalloway]

Summary

Create an interactive Template Wizard MCP App that replaces multi-turn template configuration conversations with a visual form.

MCP Apps Pattern: Configuring with many options

Setting up a new .NET project involves multiple interdependent choices (template, framework, auth, Docker, OpenAPI, etc.). Rather than a back-and-forth conversation, the Template Wizard presents a form where users see all options at once, with validation and defaults.

Design

• Template selector: Searchable/filterable grid of installed templates (from TemplateEngineHelper.GetInstalledTemplatesAsync())
• Dynamic parameters: When a template is selected (e.g., Blazor), show its specific parameters with dropdowns, checkboxes, and defaults (from TemplateEngineHelper.GetTemplateDetailsAsync(shortName))
• Framework picker: Dropdown with LTS badges (from FrameworkHelper)
• Live validation: Parameter constraints checked before submission
• Create button: Calls DotnetProject with action New and all configured parameters

Data Sources

• TemplateEngineHelper.GetInstalledTemplatesAsync() — full template catalog
• TemplateEngineHelper.GetTemplateDetailsAsync(shortName) — per-template parameters with types, defaults, choices
• FrameworkHelper — framework validation, LTS status

Resource URI

ui://dotnet-mcp/template-wizard

Priority

High — strongest MCP Apps showcase scenario for this server.