Can someone make an encyclopedic definition of what Perl Toolchain really is?

Like all the best marketing speak, and high-class hookers (so I'm told:), it can be whatever you want it to be.

A "toolchain" is generically the set or sequence of tools that you use to develop your working programs.

It might be a simple as a text editor and a command line. It might be a sophisticated IDE.

Some would include their source-control software; some their bug tracking software; for some it might all be centred around their favoured unit test framework. You could probably include the cpan shell, or PPM or APT interface. For some, easily accessible and searchable help files.

Without further context, probably the best definition that you could come up with would something like: The set of tools you use to develop your Perl programs. Which is probably completely accurate, but so devoid of any useful information as to be meaningless.

Ie. Perfect for marketing blurb.