Encourage stateless programming style

[gracjan]

Each command should be as self-contained as possible, It should preferably not depend on hidden state at all. Visible state, like contents of visible files, is less of a problem.

Encourage stateless programming in what is supposed to be async system.

Encourage using full absolute paths to files because current working directory is state.

[bitemyapp]

Tend to agree, although for performance (later?) may want to mediate access to project state (probably namespaced by project path root or some-such).

[alanz]

I also tend to agree, in particular with the approach of always running hie wrt a given, known directory, and using absolute file paths.