diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
new file mode 100644
index 000000000..82e0f9318
--- /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/**"
+      - "autogalaxy/**"
+      - "pyproject.toml"
+      - ".readthedocs.yaml"
+      - ".github/workflows/docs.yml"
+  pull_request:
+    paths:
+      - "docs/**"
+      - "autogalaxy/**"
+      - "pyproject.toml"
+      - ".readthedocs.yaml"
+      - ".github/workflows/docs.yml"
+  workflow_dispatch:
+
+jobs:
+  docs:
+    uses: PyAutoLabs/PyAutoHeart/.github/workflows/docs-build.yml@main
+    with:
+      package: autogalaxy
+    secrets: inherit
diff --git a/.gitignore b/.gitignore
index 3525e9b70..8c70a8864 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,8 @@ test_autogalaxy/unit/pipeline/files/plot/PlotterInterface/inversion/fits/reconst
 test_autogalaxy/unit/data_temp/simulate_and_fit/image.fits
 test_autogalaxy/unit/data_temp/simulate_and_fit/noise_map.fits
 test_autogalaxy/unit/data_temp/simulate_and_fit/psf.fits
+
+# Sphinx build artifacts (generated at docs build time, never committed)
+docs/_build
+docs/api/generated
+docs/api/_autosummary
diff --git a/docs/conf.py b/docs/conf.py
index 7b0e442fb..1e0f426ea 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -122,13 +122,6 @@
 # pygments_dark_style = "monokai"
 add_function_parentheses = False
 
-html_context = {
-    "menu_links_name": "Repository",
-    "doc_path": "docs",
-    "github_project": "pyautogalaxy",
-    "github_repo": "pyautogalaxy",
-    "github_version": "master",
-}
 language = "en"
 
 from sphinx.builders.html import StandaloneHTMLBuilder
diff --git a/docs/sphinx_warning_baseline.txt b/docs/sphinx_warning_baseline.txt
new file mode 100644
index 000000000..f96ac0672
--- /dev/null
+++ b/docs/sphinx_warning_baseline.txt
@@ -0,0 +1 @@
+105
diff --git a/readthedocs.yaml b/readthedocs.yaml
deleted file mode 100644
index 7362fe557..000000000
--- a/readthedocs.yaml
+++ /dev/null
@@ -1,17 +0,0 @@
-version: 2
-
-build:
-  os: ubuntu-22.04
-  tools:
-    python: "3.11"
-
-python:
-  install:
-    - method: pip
-      path: .
-      extra_requirements:
-        - docs
-
-sphinx:
-  configuration: docs/conf.py
-  fail_on_warning: false
\ No newline at end of file