# Reading code here Files are read with the `vr` tool — run `vr -doc` once for full usage. - `vr read FILE:START-END` — line-numbered read; prefer ranges over whole files - `vr grep PATTERN [PATH]` — regex search; scope with a path - `vr read -r REV FILE`, `vr grep -r REV PATTERN PATH` — at another jj change - `vr note -f FILE:10-42 -t struct TEXT...` — record observations as you read Navigate top-down: grep for the symbol, read the enclosing range, note what you learn. Reads and notes are keyed to the current jj change automatically.