diff --git a/.github/workflows/slow-checks.yml b/.github/workflows/slow-checks.yml
index fe561ceb7..39b148a74 100644
--- a/.github/workflows/slow-checks.yml
+++ b/.github/workflows/slow-checks.yml
@@ -20,6 +20,7 @@ jobs:
     permissions:
       contents: read
     env:
+      # Integration tests that use the GitHub CLI need this token.
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     strategy:
       fail-fast: false
diff --git a/doc/changes/unreleased.md b/doc/changes/unreleased.md
index b377194ec..28ee15466 100644
--- a/doc/changes/unreleased.md
+++ b/doc/changes/unreleased.md
@@ -2,6 +2,13 @@
 
 ## Summary
 
+This release documents how to discover and use PTB's Nox sessions in the user
+guide and removes the unused Modules section from the developer guide.
+
+## Documentation
+
+* #456: Documented how to discover PTB nox sessions in the user guide
+
 ## Refactoring
 
 * #934: Removed unused, experimental Nox session `lint:import`
diff --git a/doc/github_actions/python_environment.rst b/doc/github_actions/python_environment.rst
index fb3529847..4decb7379 100644
--- a/doc/github_actions/python_environment.rst
+++ b/doc/github_actions/python_environment.rst
@@ -56,7 +56,7 @@ Example Usage
             uses: actions/checkout@v7
 
           - name: Setup Python & Poetry Environment
-            uses: exasol/python-toolbox/.github/actions/python-environment@v4
+            uses: exasol/python-toolbox/.github/actions/python-environment@v10
             with:
               python-version: 3.12
               poetry-version: 2.3.0
diff --git a/doc/user_guide/features/index.rst b/doc/user_guide/features/index.rst
index 373fb643b..5c91b6c67 100644
--- a/doc/user_guide/features/index.rst
+++ b/doc/user_guide/features/index.rst
@@ -35,5 +35,16 @@ Central files in regards to nox and the toolbox are:
 Important Nox Commands
 ^^^^^^^^^^^^^^^^^^^^^^
 
-* :code:`nox -l` shows a list of all available nox sessions
-* :code:`nox -s <session>` run the specified session(s)
+
+Use :code:`nox -l` to show the current list of sessions for your project
+
+Common examples are as follows:
+
+* :code:`nox -s format:fix` applies formatting changes.
+* :code:`nox -s project:check` runs the main local quality gate.
+* :code:`nox -s test:unit` runs unit tests.
+* :code:`nox -s workflow:generate -- all` updates PTB workflow files.
+
+For more details, see the feature pages in this guide. They include formatting,
+GitHub workflows, dependency management, release preparation, and code-quality
+reporting.