map
node scripts/fleet/gen/repo-map.mts <file|dir> [<file|dir>…]
Skeleton lines go to stdout; a source → skeleton savings summary goes to
stderr.
Read the skeleton to locate the symbol you care about and its line span.
Read ONLY that span with the Read tool's
offset/limit(e.g. a symbol at201-253→Read(file, offset=201, limit=53)). Do not read the whole file unless you are about to edit it and need exact surrounding content.