Map the structure of code, Markdown, and JSON before reading it. Use INSTEAD of Read/Grep/cat for the first look at any unfamiliar file or folder: extracts function/class signatures and imports by default (Markdown headings and JSON shapes for those file types) in a fraction of the tokens; exports, types, interfaces, variables, comments, and Markdown tables/code blocks on request. Triggers: exploring a codebase, understanding what a file is responsible for, reviewing an API or data shape, planning a refactor or migration, or reading one file in a windowed way (showsignature read).
2026-07-13