How Google ADK Agents Run | Event Loop Explained (Concept Walkthrough)

This is a concept-first walkthrough of the ADK Runtime Event Loop — the “engine” behind how your agent executes. We break down what the event loop is, the key runtime components involved, and a simplified invocation flow so you can build and debug agents with a much clearer mental model. 📘 What we covered • Core idea: the Event Loop (Runner ↔ Execution Logic ↔ Events) • Key components of the Runtime (Runner, Agents, Tools, Callbacks, Services/State) • How it works: a simplified invocation flow 👇 Chapters 00:00 - Intro 00:14 - Core Idea: The Event Loop 03:42 - Key Components of the Runtime 06:54 - How It Works: A Simplified Invocation 11:43 - Wrap-up 📂 Resources • Documentation: ADK Runtime Event Loop → https://google.github.io/adk-docs/runtime/event-loop/ 🎥 Previous videos → Video 1: Build Your First AI Agent with Google ADK → https://youtu.be/NU05aTvRiJM → Video 2: Function Tools in Google ADK (Finance Assistant) → https://youtu.be/NnQsX5FiOak → Video 3: OpenAPI Tools in Google ADK (Chuck Norris API) → https://youtu.be/q3jm48R0Brw → Video 4: Sequential Agents in Google ADK (Podcast Transcript Assistant) → https://youtu.be/WfZSHQrD14Y → Video 5: Parallel Agents in Google ADK (Multi-Agent Travel Planner) → https://youtu.be/czNGyHkKdew → Video 6: Loop Agents in Google ADK → https://youtu.be/QGcVTjeQYXA → Video 7: Callbacks in Google ADK → https://youtu.be/NANNKCiLz0I 📺 Playlists → Building AI Agent with Google ADK Playlist → https://www.youtube.com/playlist?list=PL2OwQjtoKA1F4m0__4e8gh_X0YZqRpm9Z → Function calling Playlist → https://www.youtube.com/playlist?list=PL2OwQjtoKA1G5lcXPNodN390dn7gZWonm #adk #googleadk #llm #genai #aiagents #runtime #eventloop #aideveloper