AI User Story Vertical Slicing Prompt

Feature: {{feature}}

Split it into vertical slices (each one delivers real user value end to end, not a layer like "backend only").
For each slice: what a user can do after it ships, its size relative to the others (S/M/L), and its dependency on any earlier slice.
Flag if the feature genuinely cannot be sliced and must ship as one unit, and why.

Replace the {{fields}} with your own context and tighten the rules to match your domain.