Codex. It's been used for software before but not in this context (I think).

narration, contracts, satisfying, accepting... Narrat{ive,or}, Satisfaction, deliveror, .., ?

Sounds like your tool has many layers; storey?

Or if you suspect people might not be able to spell storey, parable?

placenta dilbert.com/strip/1993-06-23

Nowadays I check translations to Esperanto to find inspiration: Skripto, Klarigo, Rakonto.

Testery (en.wikipedia.org/wiki/Tester…)