Document profile and prompt identity listings

docs/consumers/pkg-promptkit.md

@@ -118,6 +118,43 @@ engines and prepared handles retain their captured definitions; schema and
 request artifact resources still follow their runtime lifecycle. Inspection
 does not watch or reload sources automatically.
 
+## Discover Available Profiles And Prompts
+
+Use [`Engine.ListProfiles`](../../listing.go) and
+[`Engine.ListPrompts`](../../listing.go) to discover exact identities from the
+engine's final captured configuration, then inspect a selected prompt:
+
+```go
+profiles, err := engine.ListProfiles(ctx)
+if err != nil {
+	return err
+}
+if len(profiles) > 0 {
+	_, err := engine.InspectProfile(ctx, profiles[0])
+	if err != nil {
+		return err
+	}
+}
+prompts, err := engine.ListPrompts(ctx)
+if err != nil {
+	return err
+}
+if len(prompts) > 0 {
+	selected := prompts[0]
+	inspection, err := engine.InspectPrompt(ctx, selected.ID, selected.Version)
+	if err != nil {
+		return err
+	}
+	_ = inspection
+}
+```
+
+These lists describe effective membership, not ConfigKit contribution history,
+and do not promise that a profile is ready to execute. Use inspection for
+details and preparation to resolve request resources. The linked method GoDoc
+owns ordering, ownership, concurrency, and error behavior; identifiers may be
+sensitive application data.
+
 ## Inspect The Captured Configuration
 
 Use [`Engine.InspectConfiguration`](../../configuration_inspection.go) for an