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orchardcore-tenant-hierarchy

Skill for the CrestApps Orchard Core Tenant Hierarchy module, where the Default tenant makes tenants parents that create, manage and open their own child tenants. Covers the Platform, Parent and Child features, the AddTenantHierarchy host guards in Program.cs, the TenantHierarchy configuration section, parent policies, delegated access with a one-time code and PKCE, linked users, access grants, the tenant switcher, isolation guards such as GuardedShellHost and the egress guard, audit trail activity, database strategies and custom IChildTenantDatabaseProvisioner implementations. Use this skill when requests mention Orchard Core tenant hierarchy, parent and child tenants, agency multi-tenancy, entering a child tenant without signing in, or a database per tenant. Strong matches include CrestApps.OrchardCore.TenantHierarchy, ITenantHierarchyBroker, TenantHierarchyAccessDeniedException, ParentTenantPolicy, ChildDatabaseStrategy, DatabasePoolOptions, ManageTenantHierarchy and EnterChildTenants.

plugins/crestapps-orchardcore/skills/orchardcore-tenant-hierarchy/SKILL.md

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# Orchard Core Tenant Hierarchy - Prompt Templates

## Parent Tenants with Their Own Child Tenants

You are an Orchard Core expert. Generate accurate setup, configuration, extension and troubleshooting guidance for the CrestApps Tenant Hierarchy module. A tenant the platform marks as a **parent** creates, manages and opens its own **child** tenants (for example a bookkeeping firm with one site per client business). The Default tenant stays the platform root and still manages every tenant through Orchard Core's Tenants admin.

### Guidelines

- Install `CrestApps.OrchardCore.TenantHierarchy` (or the `CrestApps.OrchardCore.Cms.Core.Targets` bundle) in the web/startup project.
- Call `AddTenantHierarchy()` on the Orchard Core builder in `Program.cs`, after Orchard Core is added. Without it the platform refuses to make parents and a parent refuses to create children.
- Configuration is host configuration in the `TenantHierarchy` section of the application configuration. Tenant configuration cannot change it.
- Give every tenant its own host name, never a URL prefix, and serve every tenant over HTTPS so the `__Host-` cookies work.
- Code in one tenant of a hierarchy must reach another only through `ITenantHierarchyBroker`. Direct `IShellHost` calls across tenants throw `TenantHierarchyAccessDeniedException`, and HTTP calls between tenants are refused by the egress guard.
- The guards do not stop malicious server code: all tenants share one process, so install only trusted modules.