diff --git a/CLAUDE.md b/CLAUDE.md
index 4aa7d722..9a74666e 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -2,6 +2,13 @@
 
 This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
 
+## Dependency Graph
+
+PyAutoArray depends on **autoconf** (shared configuration and utilities).
+PyAutoArray does **NOT** depend on PyAutoFit, PyAutoGalaxy, or PyAutoLens.
+Never import from `autofit`, `autogalaxy`, or `autolens` in this repo.
+Shared utilities (e.g. `test_mode`, `jax_wrapper`) belong in autoconf.
+
 ## Commands
 
 ### Install
diff --git a/autoarray/inversion/mesh/image_mesh/hilbert.py b/autoarray/inversion/mesh/image_mesh/hilbert.py
index 4ad851b7..4c9c0f35 100644
--- a/autoarray/inversion/mesh/image_mesh/hilbert.py
+++ b/autoarray/inversion/mesh/image_mesh/hilbert.py
@@ -12,7 +12,7 @@
 from autoarray.structures.grids.irregular_2d import Grid2DIrregular
 
 from autoarray import exc
-from autofit.non_linear.test_mode import is_test_mode
+from autoconf.test_mode import is_test_mode
 
 
 def gilbert2d(width, height):