Nomad changes

docs/snippets/elixir/plugins/plugin_extractor.exs

@@ -0,0 +1,35 @@
+```elixir title="Elixir"
+defmodule MyApp.WordCountProcessor do
+  @behaviour Kreuzberg.Plugin.PostProcessor
+
+  def name, do: "word_count_processor"
+
+  def version, do: "1.0.0"
+
+  def processing_stage, do: :late
+
+  def initialize, do: :ok
+
+  def shutdown, do: :ok
+
+  def process(result, _config) do
+    word_count = result.content
+      |> String.split()
+      |> Enum.count()
+
+    metadata = Map.put(result.metadata || %{}, "word_count", word_count)
+    %{result | metadata: metadata}
+  end
+end
+
+# Register post-processor
+Kreuzberg.Plugin.register_post_processor(MyApp.WordCountProcessor)
+
+# Use with extraction
+{:ok, result} = Kreuzberg.extract_file(
+  "document.pdf",
+  nil
+)
+
+IO.puts("Word count: #{result.metadata["word_count"]}")
+```