diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 86297e3..d5e4f42 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -28,6 +28,9 @@ repos:
       - id: trailing-whitespace
         # Trims trailing whitespace.
         exclude_types: [python] # Covered by Ruff W291.
+      - id: pretty-format-json
+        args: ['--autofix']
+        # Checks that all your JSON files are pretty.
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
     rev: v0.7.4
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..3ff560f
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,5 @@
+{
+  "recommendations": [
+    "charliermarsh.ruff"
+  ]
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
index f43854b..5ec6ac7 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,3 @@
 {
-  "editor.defaultFormatter": "ms-python.black-formatter"
+  "editor.defaultFormatter": "charliermarsh.ruff"
 }