This is the official web-based developer UI for Google's Agent Development Kit (ADK), an Angular single-page application for building, testing, evaluating, and deploying AI agents. In production it acts as a full agent IDE: a chat surface with SSE and WebSocket streaming (including bidirectional audio and video), a visual node-graph builder that reads and writes agent YAML configurations, an OpenTelemetry trace inspector with span trees and waterfall charts, an evaluation runner with configurable metrics and pass/fail thresholds, artifact and session browsers, and deployment wizards for Cloud Run, GKE, and Agent Runtime. The repository is an application, not a data pipeline: trace spans and eval results are consumed for UI introspection and agent debugging, but no notebooks, training scripts, or ETL jobs exist.