PipeScript already overrides CommandNotFoundAction, why not PreCommandLookupAction?

By overriding PreCommandLookupAction, PipeScript can create on-the-fly aliases to any command that can be interpreted.

Since the mapping of commands to interpreters can be done in memory without referencing commands, this should be rather fast and effective.

The net effect is that any language PipeScript can interpret can be run inline, automagically.