diff --git a/docs/plans/2026-05-11-templates-folder-hierarchy.md b/docs/plans/2026-05-11-templates-folder-hierarchy.md
index a9696db..a88de6a 100644
--- a/docs/plans/2026-05-11-templates-folder-hierarchy.md
+++ b/docs/plans/2026-05-11-templates-folder-hierarchy.md
@@ -37,12 +37,12 @@ Expected: file exists.
 
 **Step 3: Build baseline passes**
 
-Run: `dotnet build ScadaLink.sln`
+Run: `dotnet build ScadaLink.slnx`
 Expected: build succeeds with 0 errors.
 
 **Step 4: Existing tests pass**
 
-Run: `dotnet test ScadaLink.sln --filter "FullyQualifiedName~TemplateEngine.Tests|FullyQualifiedName~CentralUI.Tests" --nologo`
+Run: `dotnet test ScadaLink.slnx --filter "FullyQualifiedName~TemplateEngine.Tests|FullyQualifiedName~CentralUI.Tests" --nologo`
 Expected: all green.
 
 **No commit at this task** — it's verification only.
@@ -299,7 +299,7 @@ public async Task DeleteFolderAsync(int id, CancellationToken cancellationToken
 
 **Step 3: Build**
 
-Run: `dotnet build ScadaLink.sln`
+Run: `dotnet build ScadaLink.slnx`
 Expected: 0 errors. Any compile failure means a mock somewhere implements `ITemplateEngineRepository` without these methods — search and fix:
 
 Run: `grep -rln "ITemplateEngineRepository" tests/ --include="*.cs"` and confirm Moq mocks don't need stubs (Moq generates defaults).
@@ -1825,7 +1825,7 @@ Append to the same top-level container after the rename modal:
 
 **Step 5: Build + smoke**
 
-Run: `dotnet build ScadaLink.sln`
+Run: `dotnet build ScadaLink.slnx`
 Expected: 0 errors. Run the cluster (`bash docker/deploy.sh`), exercise the three modals manually.
 
 **Step 6: Commit**
@@ -1957,7 +1957,7 @@ Wrap the `<TreeView>` in a div that accepts drops onto the root:
 
 **Step 4: Build + smoke**
 
-Run: `dotnet build ScadaLink.sln`
+Run: `dotnet build ScadaLink.slnx`
 Expected: 0 errors.
 
 Manual smoke (after `bash docker/deploy.sh`):
@@ -2170,7 +2170,7 @@ git commit -m "docs(templates): describe folder hierarchy and management command
 
 **Step 1: Full test pass**
 
-Run: `dotnet test ScadaLink.sln --nologo`
+Run: `dotnet test ScadaLink.slnx --nologo`
 Expected: all green.
 
 **Step 2: Build cluster image and run**