diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0e7eed5b..fa6eb5af 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,6 +28,9 @@ on:
 jobs:
   doc:
     uses: ComPWA/actions/.github/workflows/ci-docs.yml@v1
+    permissions:
+      pages: write
+      id-token: write
     with:
       apt-packages: graphviz
       specific-pip-packages: ${{ inputs.specific-pip-packages }}
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 536485e5..308bb550 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -23,11 +23,11 @@
   "[yaml]": {
     "editor.defaultFormatter": "esbenp.prettier-vscode"
   },
+  "cSpell.enabled": true,
   "coverage-gutters.coverageFileNames": ["coverage.xml"],
   "coverage-gutters.coverageReportFileName": "**/htmlcov/index.html",
   "coverage-gutters.showGutterCoverage": false,
   "coverage-gutters.showLineCoverage": true,
-  "cSpell.enabled": true,
   "editor.formatOnSave": true,
   "editor.rulers": [88],
   "files.watcherExclude": {
@@ -50,6 +50,7 @@
     }
   ],
   "livePreview.defaultPreviewPath": "docs/_build/html",
+  "mypy-type-checker.args": ["--config-file", "pyproject.toml"],
   "mypy-type-checker.importStrategy": "fromEnvironment",
   "python.analysis.autoImportCompletions": false,
   "python.analysis.inlayHints.pytestParameters": true,
diff --git a/docs/amplitude-analysis.ipynb b/docs/amplitude-analysis.ipynb
index f964af05..78819bda 100644
--- a/docs/amplitude-analysis.ipynb
+++ b/docs/amplitude-analysis.ipynb
@@ -1730,7 +1730,7 @@
    "outputs": [],
    "source": [
     "n_real_par = fit_result.count_number_of_parameters(complex_twice=True)\n",
-    "n_events = len(list(data.values())[0])\n",
+    "n_events = len(next(iter(data.values())))\n",
     "log_likelihood = -fit_result.estimator_value\n",
     "\n",
     "aic = 2 * n_real_par - 2 * log_likelihood\n",