I did something similar with a shell script for MySQL databases, both to support shorthand invocation (i.e. "mysql foo-bar-baz" to look up the named configuration, expand it into whatever set of arguments is defined therein, and invoke mysql(1) accordingly), and to allow for detailed and environment-specific prompts which warn me when I'm targeting production.

It's hideous, of course. But it works very well for me, and I don't suppose I'd be averse, if interest becomes evident, to sharing it somewhere for others to benefit from and/or peruse in horrified fascination.