What problem does it solve? Product teams often ship services that fail users on basic usability and service design fundamentals, discovering issues only after launch. This Skill provides a structured audit against Lou Downe's 15 principles of good services, catching design problems early and producing a scored, actionable report. ## Core Features & Use Cases - 15-Principle Checklist: Assesses each principle (discoverability, clear purpose, no dead ends, accessibility, dark pattern detection, and more) as Pass, Partial, Fail, or N/A. - Lifecycle-Gated Reviews: Supports lightweight checks at solution design (L3 Define) and full checks at delivery gates (L4 Develop/Deliver), feeding results into prioritization workflows like ICE scoring. - Scored Output with Priority Fixes: Produces a summary table, an overall score, and the top three fixes to address, plus a mandatory decision log entry. - Use Case: Before launching a new onboarding flow, run the full check to verify it meets WCAG 2.1 AA, contains no dark patterns, and always offers a next step, then log the score for the release gate review. ## Quick Start Evaluate my checkout flow against Downe's 15 principles of good services and give me the scored table with priority fixes.
