Check: flag a spelled-out macro sequence where a combined shorthand macro exists #2000

Problem

sds#614 and lds#2430 wrote \diff \vpredvar about 25 times.
Ezra asked (2026-11-12 21:08 PST, project thread) why they did not use a shorthand, as rme uses \diffvx.
macros#426 then added \diffvpredvar, and sds#618 and lds#2430 swapped it in (sds#617).
Nothing caught the miss: a reviewer had to remember that the shorthand existed.

Proposal

A changed-lines check that reads latex-macros/macros.qmd, collects every macro whose body is only a sequence of other macros (for example \def\diffvpredvar{\diff\vpredvar} and \def\diffvx{\diff\vx}), and flags added math that spells out such a sequence (with or without whitespace between the macros), naming the shorthand to use instead.

• Writer instruction: use the shorthand macro when one names the combination.
• Reviewer instruction: flag a spelled-out sequence that a shorthand macro covers.

Posted by Claude Code (AI agent) --- not written by a human.