> Markdown version of [/@krzysztof-cieslak](https://www.wearedevelopers.com/@krzysztof-cieslak). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Krzysztof Cie艣lak Builds AI developer tools at GitHub Next and maintains open-source F# tooling. ## About Krzysztof builds AI developer tools at GitHub Next. He works on core systems like GitHub Copilot, focusing on how humans naturally interact with AI to optimize workflows and reduce context switching. He is heavily involved in the F# open-source ecosystem. Krzysztof creates and maintains multiple developer experience projects ranging from language servers to VSCode plugins. He regularly speaks on the practical realities of prompt crafting and building user-centric LLM integrations. When he steps away from his editor, Krzysztof is usually traveling the globe taking photographs. ## Past Sessions ### World Congress 2026 Europe 路 July 8, 2026 Berlin, Germany - [Building the next generation of AI developer tools](https://www.wearedevelopers.com/videos/100069-building-the-next-generation-of-ai-developer-tools) 路 30 min 路 馃帴 Watch recording ### World Congress 2024 路 July 17, 2024 Berlin, Germany - [Bringing the power of AI to your application.](https://www.wearedevelopers.com/videos/1010-bringing-the-power-of-ai-to-your-application) 路 30 min 路 馃帴 Watch recording ## Videos - [Building the next generation of AI developer tools](https://www.wearedevelopers.com/videos/100069-building-the-next-generation-of-ai-developer-tools) 路 Krzysztof Cie艣lak - [Bringing the power of AI to your application.](https://www.wearedevelopers.com/videos/1010-bringing-the-power-of-ai-to-your-application) 路 Krzysztof Cie艣lak