[msla]

Surely that would be better written as

    cat PROMPT.md | cat | npx --yes @sourcegraph/amp

[wild_egg]

Aside from losing the loop (the whole point of the command), why the double `cat`?

[mkl]

I think it was an attempt at a useless use of cat joke (cat isn't needed at all here, but IMHO helps readability).

[GibbonBreath]

You've removed the loop. This pipeline executes once and then halts.