**Legacy in Months, Not Years: Keeping AI-Written Code Safe to Change** *Dmitriy Fedoryshchev* Hear how to tell whether agent-written code is making a codebase safer or riskier, and how the rules the agent kept breaking became checks it cannot skip, built into Dmitriy's own open-source tools. Lessons from modernising a 600-table, 21 TB legacy core into microservices with a squad that went AI-native under one doctrine: only merge code that can be understood and explained. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Agenda:** * **6:00pm - 6:30pm** \- Welcome • grab a drink • take some pizza • have a quick chat * **6:30pm- 6:40pm** - **Opening talk** * **6:40pm-7:30pm** - **Main talk** * **7:30pm-7:45pm** \- q&a * **7:45pm-8:00pm -** beverages • networking • closing. * **8:00pm onwards** \- Afterparty at a nearby pub\. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Speaker Spotlight:** **Dmitriy Fedoryshchev** – Lead Software Engineer – [https://www.linkedin.com/in/dife/](https://www.linkedin.com/in/dife/) He has worked on projects from startups to enterprises. His latest was modernising a 600-table, 21 TB legacy core into microservices, taking over from four previous attempts, with a squad that became AI-native on a custom multi-agent system under one doctrine: only merge code that can be understood and explained. Over a hundred merged open-source PRs across 20 projects, including Anthropic, OpenAI and Microsoft. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Partners:** * CodeBase * Dougray * Scottish Technology Club * Beyond Tech * Lyxonn \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Disclaimer:** We will take pictures and videos of the event for our social pages. If you

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