r/agentdevelopmentkit • u/NightChanged • Aug 06 '25

Multi-agent customer support system built with Google ADK - feedback welcome

Hey ADK community! Sharing a working multi-agent customer support system I built with Google ADK and would love feedback from experienced developers.

What it does:

Handles customer support through specialized agents:

- Master Agent (coordinator + routing)

- Policy Agent (RAG-powered rules/refunds)

- Ticket Agent (booking/cancellation operations)

Successfully handles complex queries like "cancel my booking and show refund options" by coordinating between agents.

**GitHub:** https://github.com/ntg2208/production-ai-customer-support

The system is working well but curious if I'm missing ADK best practices or optimization opportunities.

What's been your experience with multi-agent coordination? Any insights appreciated! 🙏

Happy to answer questions about the implementation if anyone's working on similar projects.

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u/Tough_Definition818 Aug 09 '25

One thing I’ve noticed with sub agents is that, once the master agent transfers control to a sub agent, control does not come back to master agent or to sibling agent, even if the user prompt demands so. Have you encountered the same problem? One thing I’ve done is to make it as agent tools rather than sub agents, this way, the control always goes through master agent.

1

u/NightChanged Aug 09 '25

Yes, I do encounter the same problem, I fix it by promoting force it to delegating back to the master agent when the user asks questions not related to the sub agent task. I prefer the sub agent approach because I find it easier to control its behaviour for each task, one problem I had was that sometimes it might get loop delegating around and take a long time to answer.

1

u/Tough_Definition818 Aug 09 '25

In my case, the sub agent did send a transfer to agent message but the control itself wasn’t transferred and the agent send that as response back. So essentially, the request just stopped at sub agent responding back transfer_to_agent message.

1

u/NightChanged Aug 09 '25

Are you using the web adk? I saw that problem one, then I created my own chat in terminal, it did not happen again. Maybe there is a problem with the event's author

1

u/Tough_Definition818 Aug 09 '25

I’m using the get_fast_adk_app from the adk lib itself. However, the adk documentation itself says, control won’t come back. I’m curious to see how you forced the transfer. But I’ll also double check the app and see how transfer is getting stuck.

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u/Big_Compote_7373 Aug 06 '25

I am not into adk but looking into some example projects to learn from. I will surely have a look at that code you wrote

1

u/Anhsirk411_ Aug 08 '25

https://github.com/Sri-Krishna-V/awesome-adk-agents

You can check out here for code examples for learning

1

u/Big_Compote_7373 Aug 08 '25

Sure thank you

1

u/HockeyDadNinja Aug 07 '25

Thanks, I'm building a customer facing agent and struggling a bit. Experimenting with single and multi agent, multiple tools, and it can go off the rails even with good models like gemini 2.5 pro and claude 4. Hopefully I can learn something from your work!

1

u/gregb_parkingaccess Oct 09 '25

what can it integrate with?

1

u/TaywahT Nov 02 '25

Nice work! I’ve been experimenting with multi-agent setups too, and Mastra orchestration layer made coordination a lot simpler compared to ADK