What problem does it solve? Power BI reports built without design discipline end up with misaligned visuals, inconsistent spacing, bare KPI numbers without targets, and poor chart choices. This Skill provides a complete design canon so AI agents produce reports that follow data visualization best practices instead of generic defaults. ## Core Features & Use Cases - Design Identity Locking: Commit a tone (restrained, corporate, editorial, technical) and a signature element before layout so every page and visual cites one propagating identity serialized into the theme. - Layout and Spacing Rules: Enforce the 3-30-300 detail gradient, equal gaps and margins computed arithmetically, grid-based positioning, and page-shape routing (summary, monitoring, exploration, comparison, narrative). - Visual-Specific Guidance: Detailed rules for KPI cards with targets and gaps, chart selection via the Cleveland-McGill encoding hierarchy, tables and matrices, slicers, filter panes, and mobile layouts. - Use Case: When building or reviewing a Power BI report, load this Skill to decide chart types, position visuals on a 1280x720 canvas with equal 16px gaps, add KPI targets, and run the closing design gate before shipping. ## Quick Start Use the pbi-report-design skill to review my report pages and fix any spacing, chart selection, or KPI design issues.