diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
new file mode 100644
index 000000000..c5ceca992
--- /dev/null
+++ b/.github/workflows/docs.yml
@@ -0,0 +1,31 @@
+name: Docs
+
+# Docs build check is defined once, centrally, in PyAutoHeart's reusable
+# workflow (Heart owns all health/readiness checking). This thin caller
+# builds the Sphinx docs on PRs and fails on warning-count regression
+# against docs/sphinx_warning_baseline.txt.
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "docs/**"
+      - "autolens/**"
+      - "pyproject.toml"
+      - ".readthedocs.yaml"
+      - ".github/workflows/docs.yml"
+  pull_request:
+    paths:
+      - "docs/**"
+      - "autolens/**"
+      - "pyproject.toml"
+      - ".readthedocs.yaml"
+      - ".github/workflows/docs.yml"
+  workflow_dispatch:
+
+jobs:
+  docs:
+    uses: PyAutoLabs/PyAutoHeart/.github/workflows/docs-build.yml@main
+    with:
+      package: autolens
+    secrets: inherit
diff --git a/.gitignore b/.gitignore
index e5f27da06..184ed2074 100644
--- a/.gitignore
+++ b/.gitignore
@@ -66,3 +66,4 @@ docs/_templates
 docs/generated
 docs/api/generated
 autolens_workspace_test/
+docs/api/_autosummary
diff --git a/docs/conf.py b/docs/conf.py
index d6b4dd528..7549d313e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -90,7 +90,7 @@
 
 numpydoc_show_class_members = False
 numpydoc_show_inherited_class_members = False
-nnumpydoc_class_members_toctree = True
+numpydoc_class_members_toctree = True
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
@@ -122,18 +122,8 @@
 pygments_dark_style = "monokai"
 add_function_parentheses = False
 
-html_context = {
-    "menu_links_name": "Repository",
-    "doc_path": "docs",
-    "github_project": "pyautolens",
-    "github_repo": "pyautolens",
-    "github_version": "master",
-}
 language = "en"
 
-html_static_path = ["_static"]
-html_css_files = ["pied-piper-admonition.css"]
-
 html_theme_options = {
     "light_css_variables": {
         "color-brand-primary": "#7C4DFF",
diff --git a/docs/sphinx_warning_baseline.txt b/docs/sphinx_warning_baseline.txt
new file mode 100644
index 000000000..405e2afe8
--- /dev/null
+++ b/docs/sphinx_warning_baseline.txt
@@ -0,0 +1 @@
+134