Andrew McNeilly contributed a targeted documentation update to the detekt/detekt repository, focusing on clarifying a critical configuration pitfall for multi-module Gradle projects. He addressed the common issue where custom detekt plugins were incorrectly applied to submodules rather than the root project when using a custom detektAll task. By updating the Markdown-based documentation, Andrew improved the guidance for dependency management, ensuring that users apply custom plugins at the correct project level. His work leveraged technical writing and documentation skills to reduce misconfigurations and support overhead, providing clear, actionable instructions for developers integrating detekt in complex build environments.