What problem does it solve? Horizontal 16:9 presentation decks do not work for vertical video platforms like Reels, Shorts, TikTok, and Stories. This Skill reformulates a Mira deck into a vertical version without touching the original file, reflowing each animation's axis from horizontal to portrait so the content fills a tall canvas instead of shrinking into a thin strip. ## Core Features & Use Cases - Non-destructive conversion: Copies index.html to a new index-9x16.html and applies all changes there, leaving the original deck byte-for-byte intact. - Lean composition: Each content slide shows only the title at the top plus the animation on a tall 128/203 canvas; subtitles, card headers, and pill footers are hidden via scoped CSS. - Axis reflow playbook: Converts horizontal flows, wide orbitals, side-by-side comparisons, and force-directed networks into vertical layouts while preserving texts, colors, easing, durations, and loop logic. - Native creation mode: Builds new slides directly in portrait geometry when no 16:9 source deck exists. - Use Case: You finished a 16:9 Mira deck and need a vertical version to record as an Instagram Reel; the Skill generates index-9x16.html with every animation reformulated for portrait. ## Quick Start Ask the assistant to create a vertical 9:16 version of the current Mira deck for Reels, and it will generate index-9x16.html next to the original.