Nomad changes

docs/snippets/elixir/plugins/extractor_registration.exs

@@ -0,0 +1,61 @@
+```elixir title="Elixir"
+defmodule MyApp.MetadataEnricher do
+  @behaviour Kreuzberg.Plugin.PostProcessor
+
+  def process(result, _config) do
+    enriched_metadata = result.metadata || %{}
+    enriched_metadata = Map.put(enriched_metadata, "enriched_at", DateTime.utc_now())
+    {:ok, %{result | metadata: enriched_metadata}}
+  end
+
+  def initialize, do: :ok
+  def shutdown, do: :ok
+  def version, do: "1.0.0"
+end
+
+defmodule MyApp.LinkExtractor do
+  @behaviour Kreuzberg.Plugin.PostProcessor
+
+  def process(result, _config) do
+    links = extract_links(result.content)
+    metadata = result.metadata || %{}
+    metadata = Map.put(metadata, "links", links)
+    {:ok, %{result | metadata: metadata}}
+  end
+
+  defp extract_links(content) do
+    Regex.scan(~r/https?:\/\/\S+/, content)
+    |> Enum.map(&List.first/1)
+    |> Enum.uniq()
+  end
+
+  def initialize, do: :ok
+  def shutdown, do: :ok
+  def version, do: "1.0.0"
+end
+
+defmodule MyApp.QualityValidator do
+  @behaviour Kreuzberg.Plugin.Validator
+
+  def validate(result) do
+    if String.length(result.content) > 100 do
+      :ok
+    else
+      {:error, "Content quality too low"}
+    end
+  end
+
+  def should_validate?(_result), do: true
+  def priority, do: 5
+  def initialize, do: :ok
+  def shutdown, do: :ok
+  def version, do: "1.0.0"
+end
+
+# Register multiple plugins
+Kreuzberg.Plugin.register_post_processor(:metadata_enricher, MyApp.MetadataEnricher)
+Kreuzberg.Plugin.register_post_processor(:link_extractor, MyApp.LinkExtractor)
+Kreuzberg.Plugin.register_validator(MyApp.QualityValidator)
+
+IO.puts("Plugins registered successfully")
+```