diff --git a/.changeset/silly-spoons-marry.md b/.changeset/silly-spoons-marry.md
new file mode 100644
index 0000000000..c64609ab37
--- /dev/null
+++ b/.changeset/silly-spoons-marry.md
@@ -0,0 +1,5 @@
+---
+'@shopify/theme': patch
+---
+
+Avoid loop with static assets when users pass the `--theme-editor-sync` flag
diff --git a/packages/cli-kit/assets/cli-ruby/lib/shopify_cli/theme/file.rb b/packages/cli-kit/assets/cli-ruby/lib/shopify_cli/theme/file.rb
index 5b6d7b33e6..b9e0980aa2 100644
--- a/packages/cli-kit/assets/cli-ruby/lib/shopify_cli/theme/file.rb
+++ b/packages/cli-kit/assets/cli-ruby/lib/shopify_cli/theme/file.rb
@@ -70,6 +70,10 @@ def json?
         path.extname == ".json"
       end
 
+      def static_json?
+        json? && relative_path.start_with?("assets/")
+      end
+
       def template?
         relative_path.start_with?("templates/")
       end
@@ -77,7 +81,7 @@ def template?
       def checksum
         content = read
 
-        if mime_type.json? && !settings_schema?
+        if mime_type.json? && !settings_schema? && !static_json?
           # Normalize JSON to match backend
           begin
             content = normalize_json(content)
@@ -118,11 +122,8 @@ def settings_schema?
       end
 
       def normalize_json(content)
-        normalized = JSON.generate(JSON.parse(content))
-
-        # Backend escapes forward slashes
-        normalized.gsub!(/\//, "\\/")
-        normalized
+        # Backend escapes slashes
+        JSON.generate(JSON.parse(content), escape_slash: true)
       end
     end
   end
diff --git a/packages/cli-kit/assets/cli-ruby/test/shopify-cli/theme/file_test.rb b/packages/cli-kit/assets/cli-ruby/test/shopify-cli/theme/file_test.rb
index b66689aedb..807ba839b3 100644
--- a/packages/cli-kit/assets/cli-ruby/test/shopify-cli/theme/file_test.rb
+++ b/packages/cli-kit/assets/cli-ruby/test/shopify-cli/theme/file_test.rb
@@ -142,6 +142,21 @@ def test_value_when_it_is_not_a_hash
         end
       end
 
+      def test_checksum_for_static_json_assets
+        normalized = <<~EOS.rstrip
+          {
+            "private": true,
+            "type": "module",
+            "version": "0.0.0"
+          }
+        EOS
+
+        file = fixture_file("assets/package.json")
+        file.stubs(read: normalized)
+
+        assert_equal(Digest::MD5.hexdigest(normalized), file.checksum)
+      end
+
       private
 
       def fixture_file(file_path)