Wednesday
Room 3
17:40 - 18:40
(UTC+02)
Talk (60 min)
How Anthropic uses Claude Code: Agentic Software Engineering at Scale
Over the past year, the capabilities of coding agents have expanded massively, and software engineers are demanding more of them than ever. But context window sizes have pretty much stagnated—one million tokens was roughly the state of the art a year ago, and it remains so today. As we move towards a world where agents regularly tackle monorepo-scale tasks, the demand to squeeze more and more information into those fixed limits of model context has grown into a real, full-time engineering task.
In this talk, I'll walk through the design of Claude Code plugins and their constituent context engineering primitives. For each one, we'll ask the crucial question for software engineering in 2026: does it scale? We'll talk about how we're answering this question for our own code at Anthropic—both in terms of what's working and what isn't.
Daisy Hollman
Daisy Hollman is a Member of Technical Staff at Anthropic, where she works on Claude Code. Before joining Anthropic, she spent a decade on the ISO C++ standards committee, where she chaired the study group on C++ ranges and contributed to the standardization of std::mdspan, std::atomic_ref, and the executors work that became std::execution. Her areas of expertise include metaprogramming, generic programming, concurrency, and library design. She holds a PhD in theoretical quantum chemistry, where she focused on sparse and efficient methods for ab initio calculations. Her work is driven by a passion for making software engineering more accessible and inclusive.