Update mcp tool universe

Add rag utility

test-data/docs/dsl-guide.md

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+# DSL Documentation Guide
+
+## DiagnosticService
+The `DiagnosticService` is the core component for managing diagnostics in the system.
+It allows you to define diagnostic rules and actions.
+
+Example:
+```dsl
+DiagnosticService {
+    rule "CheckEngineLight" {
+        condition: engine.status == ERROR
+        action: notify("Engine error detected")
+    }
+}
+```
+
+## NotificationService
+The `NotificationService` handles sending notifications to various channels.
+
+Example:
+```dsl
+NotificationService {
+    channel "Email" {
+        address: "admin@example.com"
+    }
+}
+```
+
+## DataProcessor
+The `DataProcessor` is used for processing incoming data streams.
+It supports various transformation functions.
+
+Example:
+```dsl
+DataProcessor {
+    input: "sensor_data"
+    transform: map(value -> value * 2)
+    output: "processed_data"
+}
+```