Demonstrate requirements discovery in composed example

integrations/ckprompt/examples/composed/main.go

@@ -121,7 +121,7 @@ func loadPromptEngine(ctx context.Context, selection ckconfig.Selection, input *
 			chosen.PromptVersion: map[string]any{
 				"default_profile": chosen.ProfileID,
 				"inputs":          []any{map[string]any{"name": "topic", "required": true, "content_type": "text/plain", "description": "Topic to brief"}},
-				"messages":        []any{map[string]any{"role": "user", "content": "Write a concise briefing about {{.topic}}."}},
+				"messages":        []any{map[string]any{"role": "user", "content": "Write a concise briefing about {{.topic}}. {{if .mode}}{{input \"notes\"}}{{end}}"}},
 				"output":          map[string]any{"format": "text", "validation_mode": "none"},
 			},
 		}},