Cut modules over to Scriptorium prompts

internal/modules/extract/dnd/spells/scriptorium_assets.go

@@ -20,6 +20,31 @@ func RegisterPromptAssets(registry *llm.AssetRegistry) error {
 	return registry.RegisterSchemaFS(embeddedAssets, "assets/schemas")
 }
 
+func promptInputs(req contracts.ExtractionRequest) contracts.LLMInputSet {
+	return contracts.LLMInputSet{
+		"transcript": transcriptPromptInput(req.SourceInput),
+		"roster":     referencePromptMaterial("roster", req.References.Slots["roster"]),
+		"glossary":   referencePromptMaterial("glossary", req.References.Slots["glossary"]),
+	}
+}
+
+func transcriptPromptInput(material contracts.LLMInputMaterial) contracts.LLMInputMaterial {
+	out := material.Clone()
+	out.Name = "transcript"
+	return out
+}
+
+func referencePromptMaterial(name string, slot contracts.ResolvedReferenceSlot) contracts.LLMInputMaterial {
+	body := referencePromptInput(slot)
+	digest := ""
+	originURI := ""
+	if len(slot.Items) == 1 {
+		digest = slot.Items[0].Digest
+		originURI = slot.Items[0].Origin.URI
+	}
+	return contracts.NewLLMInputMaterial(name, "text/plain", body, digest, originURI)
+}
+
 func scriptoriumPromptMetadata() (string, error) {
 	scriptoriumPromptHashOnce.Do(func() {
 		parts := append([]llm.AssetHashPart{