Arize AI Builders Meetup: Boosting Claude Code performance with prompt learning

Hosted by Arize AI, this talk will show how we used Prompt Learning — an RL-inspired prompt optimization method — to boost Claude Code’s performance on SWE-Bench Lite by up to 11%, without fine-tuning, new tools, or architecture changes. Just better system prompts, driven by real performance data and LLM-as-a-judge feedback. We’ll walk through the full optimization loop (rollouts → LLM evals → meta-prompting), share results across general coding and repo-specific tasks, and highlight practical tactics you can apply to your own coding agents.