Suyi Zhang - AI/ML Engineer

AI/ML Engineer with 10+ years building machine learning systems, from brain-computer interfaces to production AI agents.

Now building LLM-powered agentic workflows that solve real-world problems as startup co-founder/CTO.

Previously Oxford & Cambridge researcher working on ML models of neuroimaging and pain.

Latest

Published on: 2025-11-22• 9 min read

Testing ADK Agents with State Validation: An Alternative to Full Session Replay

Google ADKtestingagent stateunit testpytest

Write focused unit tests that verify agent behavior through state inspection, rather than replaying full conversation histories.

Published on: 2025-11-08• 7 min read

Enriching Agent State with Google ADK Callbacks

Google ADKcallbacksagent stateprogressive updatesafter_tool_callback

How to use after_tool_callback to enrich agent state with progressive updates, eliminating HTTP overhead while ensuring agents have complete data for follow-up conversations.

All Posts →