Comprehension Made Up 67% of One Engineer’s Claude Coding Sessions
Priscila Andre de Oliveira, a senior engineer at Sentry, argues that the most useful daily AI skill in a large production codebase is not code generation but comprehension. After analyzing 116 of her own Claude sessions, she found that 67% of her prompts were about understanding code and just 2% were generation. Her workflow, built around a local “catch me up” skill, uses AI to trace architecture, conventions, tests, history and behavior before any planning or implementation begins, because she says slop starts when the engineer’s mental model is wrong.
AI Engineer·May 27, 2026·9 min read
