Priscila Andre de Oliveira analyzed 116 of her own Claude sessions from daily work at Sentry. 67% were comprehension. 2% were code generation. Working in a codebase with 15 years of history, around 100 PRs merged per day, and 100,000 organizations depending on it, the unlock is not generation but understanding. She built a personal skill called catch me up with six exploration modes covering architecture, conventions, feature traces, syntax, testing, and history. The loop: understand what the agent found before you let it plan and implement, because a misaligned mental model is where slop comes from. Speaker info: - https://at.linkedin.com/in/priscila-andre-de-oliveira-ab34bb24b Timestamps: 0:00 Introduction and speaker background 2:25 Sentry's engineering environment and scale 3:50 AI-driven projects at Sentry 5:48 Maintaining code quality and technical debt 7:35 The role of comprehension in software development 9:38 Analyzing AI usage patterns 10:33 The "Catch Me Up" skill architecture 12:15 Short demo of the "Catch Me Up" skill 13:56 Planning vs. implementation in AI workflows 15:26 Conclusion and key takeaways