diff --git a/pkg/js_shared/analysis_options.yaml b/pkg/js_shared/analysis_options.yaml
new file mode 100644
index 00000000000..c36c2c5d39f
--- /dev/null
+++ b/pkg/js_shared/analysis_options.yaml
@@ -0,0 +1 @@
+include: package:lints/core.yaml
diff --git a/pkg/js_shared/lib/synced/recipe_syntax.dart b/pkg/js_shared/lib/synced/recipe_syntax.dart
index b24e7c216ed..51b8358ab87 100644
--- a/pkg/js_shared/lib/synced/recipe_syntax.dart
+++ b/pkg/js_shared/lib/synced/recipe_syntax.dart
@@ -131,7 +131,9 @@ abstract class Recipe {
   static const int _at = 0x40;
   static const String _atString = '@';
 
+  // ignore: unused_field
   static const int _uppercaseA = 0x41;
+  // ignore: unused_field
   static const int _uppercaseZ = 0x5A;
 
   static const int _leftBracket = 0x5B;
@@ -148,6 +150,7 @@ abstract class Recipe {
   static const String _backtickString = '`';
 
   static const int _lowercaseA = 0x61;
+  // ignore: unused_field
   static const int _lowercaseZ = 0x7A;
 
   static const int _leftBrace = 0x7B;
diff --git a/pkg/js_shared/pubspec.yaml b/pkg/js_shared/pubspec.yaml
index 3503f2539b2..f2cad2ee992 100644
--- a/pkg/js_shared/pubspec.yaml
+++ b/pkg/js_shared/pubspec.yaml
@@ -9,3 +9,4 @@ environment:
 dev_dependencies:
   _fe_analyzer_shared: any
   expect: any
+  lints: any
diff --git a/sdk/lib/_internal/js_shared/lib/synced/recipe_syntax.dart b/sdk/lib/_internal/js_shared/lib/synced/recipe_syntax.dart
index b24e7c216ed..51b8358ab87 100644
--- a/sdk/lib/_internal/js_shared/lib/synced/recipe_syntax.dart
+++ b/sdk/lib/_internal/js_shared/lib/synced/recipe_syntax.dart
@@ -131,7 +131,9 @@ abstract class Recipe {
   static const int _at = 0x40;
   static const String _atString = '@';
 
+  // ignore: unused_field
   static const int _uppercaseA = 0x41;
+  // ignore: unused_field
   static const int _uppercaseZ = 0x5A;
 
   static const int _leftBracket = 0x5B;
@@ -148,6 +150,7 @@ abstract class Recipe {
   static const String _backtickString = '`';
 
   static const int _lowercaseA = 0x61;
+  // ignore: unused_field
   static const int _lowercaseZ = 0x7A;
 
   static const int _leftBrace = 0x7B;