Wayfinder.Rendering.GovUk 0.3.4

dotnet add package Wayfinder.Rendering.GovUk --version 0.3.4
                    
NuGet\Install-Package Wayfinder.Rendering.GovUk -Version 0.3.4
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Wayfinder.Rendering.GovUk" Version="0.3.4" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Wayfinder.Rendering.GovUk" Version="0.3.4" />
                    
Directory.Packages.props
<PackageReference Include="Wayfinder.Rendering.GovUk" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Wayfinder.Rendering.GovUk --version 0.3.4
                    
#r "nuget: Wayfinder.Rendering.GovUk, 0.3.4"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package Wayfinder.Rendering.GovUk@0.3.4
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Wayfinder.Rendering.GovUk&version=0.3.4
                    
Install as a Cake Addin
#tool nuget:?package=Wayfinder.Rendering.GovUk&version=0.3.4
                    
Install as a Cake Tool

<picture> <source media="(prefers-color-scheme: dark)" srcset="assets/wordmark-dark.png"> <img src="assets/wordmark-light.png" alt="Wayfinder" height="56"> </picture>

CI Wayfinder Wayfinder.Engine Wayfinder.Editor License: MIT

A GDS-style service blueprint / service-design engine — domain model, calculation engine, state-machine engine, and a compiled visual editor web component. Framework-agnostic: no Umbraco, no ASP.NET Core MVC, no hosting assumptions baked in.

Wayfinder was extracted from Umbraco Prism, which is now a consumer of these packages rather than their owner. A host application — Umbraco-based or otherwise — layers its own tenancy, auth, and rendering opinions on top. Wayfinder.Umbraco is the Umbraco-hosted implementation Prism itself uses.

See it running

Wayfinder.AppHost + Wayfinder.ReferenceApp is a small, self-contained .NET Aspire host in this repo — every package wired together, real GOV.UK Design System rendering, a demo login, and a seeded "apply for a licence to hold a juggling event" journey. It's the fastest way to see what a working Wayfinder host actually looks like, and exactly how little wiring a real host (like Wayfinder.Umbraco) collapses into. Run it with dotnet run --project Wayfinder.AppHost, or the "C#: Aspire (Full Stack)" launch config in VS Code. See docs/guides/reference-app.md for what it implements, how the demo blueprint is seeded from JSON and only saved in memory, and what a real host does differently.

Packages

Package Purpose
Wayfinder Core domain models (ServiceBlueprint, ServiceRequestResponseEnvelope, etc.), the declarative calculation engine, and the sanitizer interface. Zero framework dependency.
Wayfinder.Engine The service blueprint state-machine engine — queue routing, gateway evaluation, request persistence.
Wayfinder.Engine.Api REST toolkit (MapServiceBlueprintAuthoringApi()) exposing service blueprint authoring — list/read/validate/save/simulate — over HTTP for any ASP.NET Core host.
Wayfinder.Engine.Mcp MCP-over-HTTP toolkit (MapServiceBlueprintAuthoringMcp()) — the same authoring surface as MCP tools for AI agents.

The service blueprint model

A ServiceBlueprint describes a journey as queues (named work queues), stages (each owning its own routes), and gateways (first-class Split/Join routing nodes — a stage's routes must always target a gateway, never another stage directly). See docs/guides/reference-service-blueprint-contract.md for the full authoring schema, and docs/guides/calculation-language.md for the declarative expression language used in calculations and showWhen.

AI-ready authoring

Service blueprint authoring is exposed to AI agents (Claude Code or any MCP client) the same way it's exposed to a human editor: as a toolkit a host app wires into its own pipeline. Wayfinder.Engine.Api and Wayfinder.Engine.Mcp map the same list/read/validate/save/simulate operations as REST and MCP-over-HTTP respectively, both calling straight into a host's live Wayfinder.Engine in-process. See docs/guides/ai-service-blueprint-authoring.md.

Building

dotnet build Wayfinder.slnx
dotnet pack Wayfinder.slnx

License

MIT — see LICENSE.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (3)

Showing the top 3 NuGet packages that depend on Wayfinder.Rendering.GovUk:

Package Downloads
Wayfinder.Umbraco

Umbraco-hosted implementation of Wayfinder service design — a DB-backed, uSync-portable service blueprint store, a backoffice authoring API, and two Block Grid-composable building blocks (a citizen-facing stage journey and a caseworker-facing worklist) for any Umbraco v17+ site. An authoritative in-process engine, real multi-queue support, no multi-tenancy or auth opinions of its own; a host wires its own identity/tenant resolution on top.

Wayfinder.Engine.Worklist

A default, optional caseworker worklist surface — server-rendered GOV.UK markup for the filter/sort/search/paginated list (see docs/guides/queue-worklist-filtering.md), an item review page, advance, and per-cursor pickup/putback (see docs/guides/work-allocation.md). A host wires it up with AddWorklist()/MapWorklist(prefix), supplying only tenant/actor resolution and its own page chrome — or ignores this package entirely and hand-writes the same routes itself, as Wayfinder.ReferenceApp originally did.

Wayfinder.Engine.Journey

A default, optional single-actor journey surface — server-rendered GOV.UK markup for "get my current stage, advance it" against one blueprint (the applicant/citizen shape, as opposed to Wayfinder.Engine.Worklist's multi-item caseworker queue). A host wires it up with AddJourney()/MapJourney(prefix, blueprintKey, pageTitle) — once per blueprint it wants a self-service journey for — or ignores this package entirely and hand-writes the same routes itself.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.3.4 121 8/21/2026
0.3.3 96 8/21/2026
0.3.2 136 8/20/2026
0.3.1 108 8/19/2026
0.3.0 88 8/17/2026
0.2.0 163 8/5/2026
0.1.2 166 8/4/2026
0.1.1 155 8/3/2026
0.1.0 95 8/3/2026