Comment by j6m8

I wrote frof [1] for exactly this purpose :)

Designed to be ultra-simple and with minimal "config-file acrobatics".

It looks like this [edit, formatting]:

    write -> analyze
    build -> analyze

    write:     echo 1 2 3 > data.txt
    build:     compile_tool.sh > tool.sh
    analyze:   tool.sh data.txt

https://github.com/j6k4m8/frof/