nw-test-design-mandates-scenario-design

Scenario-design mandates for acceptance tests — Hexagonal Boundary Enforcement (drive through driving ports, never internals), Business Language Abstraction (three abstraction layers), User Journey Completeness, Pure Function Extraction Before Fixtures, Algebraic Analysis Before the Scenario (name the law, find its narrowest surface, declare every gated input, prove the scenario can fail), the 3 Pillars style backbone, and Walking Skeleton Strategy. Consult while shaping or judging a scenario's boundary, language, journey completeness, and fixture strategy. Canonical definitions; SSOT for these mandates.

Used by: nw-acceptance-designer, nw-acceptance-designer-reviewer

Source: SKILL.md on GitHub