diff --git a/CLAUDE.md b/CLAUDE.md
index b493540..a7f484c 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -62,12 +62,18 @@ The gateway lives in a sibling repo at `c:\Users\dohertj2\Desktop\mxaccessgw\`.
 ```bash
 dotnet restore ZB.MOM.WW.OtOpcUa.slnx
 dotnet build ZB.MOM.WW.OtOpcUa.slnx
-dotnet test ZB.MOM.WW.OtOpcUa.slnx                          # all tests
-dotnet test tests/ZB.MOM.WW.OtOpcUa.Tests                    # unit tests only
-dotnet test tests/ZB.MOM.WW.OtOpcUa.IntegrationTests         # integration tests only
-dotnet test --filter "FullyQualifiedName~MyTestClass.MyMethod"  # single test
+dotnet test ZB.MOM.WW.OtOpcUa.slnx                                # all tests
+dotnet test tests/Core/ZB.MOM.WW.OtOpcUa.Core.Tests               # a single test project
+dotnet test --filter "FullyQualifiedName~MyTestClass.MyMethod"    # a single test
 ```
 
+Test projects live under `tests/<module>/` (Core, Server, Drivers,
+Drivers/Cli, Client, Tooling) — there is no single unit-test project.
+Unit suites are named `*.Tests`; integration suites are `*.IntegrationTests`
+and need their Docker fixture up (see Docker Workflow). DB-backed tests in
+`*.Configuration.Tests`, `*.Admin.Tests`, and `*.Server.Tests` require the
+central SQL Server.
+
 ## Docker Workflow (driver fixtures + central SQL Server)
 
 > **Migrated 2026-04-28**: Docker config + host moved off this dev VM (DESKTOP-6JL3KKO) onto the shared Linux Docker host (`DOCKER`, 10.100.0.35) so the dev VM could shed WSL2/Hyper-V and have its GPU re-attached via ESXi passthrough. Docker Desktop is no longer installed here. All checked-in `appsettings.json` defaults, fixture-class default endpoints, and `e2e-config.sample.json` were rewritten to target `10.100.0.35`. The driver fixture compose files under `tests/.../Docker/docker-compose.yml` now carry a `project: lmxopcua` label on every service. See `docs/v2/dev-environment.md` for the full rewrite (header dated 2026-04-28).