understudy

Write code, comments, tests, or commit messages that read as if the project's own maintainer wrote them, so a contribution is accepted as native rather than rejected as foreign. Use when writing into a codebase or document you don't own: a pull request or patch to an upstream project, a fix matching a specific maintainer's style, a change that has to blend into a teammate's module. Triggers on /understudy, "match the style", "make it look like theirs", "fit the house style", "will this look out of place in their repo", or before opening a PR against someone else's project. Also invoke proactively whenever you're about to write into code or prose whose style isn't your own — a foreign-looking contribution is a cost to the maintainer even when it's correct, and the cheapest time to match their hand is before you've written in yours.