The HK Code Block plugin enhances code blocks in Obsidian with features like titles, collapsible sections, line numbers, line highlights, copy buttons, prompts, and language indicators. It allows users to create visually enriched and functional code blocks, making code presentations more organized and readable. Customizable settings provide flexibility in how features are applied, such as specifying default values for prompts, managing line number displays, and enabling or disabling specific options. The plugin also supports associating result blocks with code, helping users demonstrate outputs directly. It integrates seamlessly with various themes, making it a versatile tool for developers and note-takers who frequently use code snippets.