Arize Builders Meetup - Seattle - Boosting Claude Code performance with prompt learning

​Your CLAUDE.md file is more powerful than you think. In this talk, we'll walk through how we applied Prompt Learning — an RL-inspired prompt optimization technique — to improve Claude Code's performance on SWE-Bench Lite by up to 11%, purely by optimizing the system prompt instructions. No fine-tuning, no new tools, no architecture changes. Just better prompts, driven by real performance data and LLM-as-a-judge feedback. ​We'll cover the full optimization loop (rollouts → LLM evals → meta-prompting), show results for both general coding improvement and repo-specific specialization, and share practical takeaways you can apply to your own coding agent workflows today. ​Agenda ​6:00 - 6:30 PM | Check-in & Networking6:30 - 7:30 PM | Presentation & Q&A7:30 - 9:00 PM | Networking ​Food and drinks will be provided. Space is limited—register soon to secure your spot!