Author a HyperFrames slideshow — a presentation, pitch deck, or interactive deck with discrete slides, fragment reveals, branching, hotspot navigation, and built-in presenter mode with speaker notes; also converts an existing page into a deck. Output is a navigable deck, not a rendered MP4. If the u

Plugin installs: Before setup or freshness commands, follow [plugin execution rules](../hyperframes/references/plugin installation.md) when this skill is inside a HyperFrames plugin. HyperFrames slideshow A slideshow is a normal composition (the /hyperframes contract applies) plus one JSON island that says which scenes are slides and how they connect. The deliverable is a running deck, not an MP4. What changes from a video project Each slide is a top level scene in the composition file: data composition id , data start , data duration , data label , data width , data height . There is no master root composition wrapping them. One island per composition , near the top of <body , written in the HTML (never generated by script; present reads the file statically): sceneId equals a scene's data composition id (or give startTime / endTime ). notes are presenter only. ttsScript , ttsAudioUrl and ttsDurationMs are reserved and not wired yet. Fragments are absolute timeline times (the same clock as data start , not offsets inside the slide) within the slide's [start, end] . Navigation seeks, it never plays: each hold state must look right when the timeline is seeked straight to that time. A slide without fragments enters at a rest frame inside it. Branch slides are ordinary scenes listed only in slideSequences , never in the main slides array. A hotspot's target is a sequence id ; region is a percentage box (omit it for a full slide button). Back returns to the slide that held the hotspot. Text the audience must read is at least 40 px at 1920×1080. Before hand building any named visual, search npx hyperframes catalog query "<the visual, in English " json : it ranks the whole registry with nothing installed. Porting an existing page Keep the source's look, motion, interactions and media behaviour; port its widgets, players and visualizers rather than approximating them. Movement the page drove by scroll, wheel or a camera layer becomes a camera move from one focal point to the next on slide navigation, never a page visibly scrolling. Keep each move direct, without reversals the source doesn't make. Screenshots, posts, charts, code and any image with readable text are evidence: keep their aspect ( object fit: contain ) and check all four edges for crops. Every copied <video / <audio needs data start and data duration ( data has audio="true" when its sound plays), and no preload="none" . Custom media chrome reads the native element's events and currentTime , never its own timer. Hidden stacked slides need opacity: 0 , visibility: hidden and pointer events: none together, or an invisible layer swallows clicks. Present and hand off Never render a deck to MP4 : render keeps only the first scene and truncates silently. For stills, snapshot at each slide. Run npx hyperframes check json until it is clean. The slideshow rule checks that every sceneId resolves, every hotspot target exists, fragments sit inside their slide, and main line slides don't overlap. Serve it with npx hyperframes present <project dir and hand over the URL it prints: "Click Present, or press P, to open the audience tab." The project's root index.html should open as a working deck: <hyperframes slideshow around <hyperframes player src="…" , with the raw composition in a subfolder if needed. The component owns Present (P), Prev/Next, the counter, global mute, fullscreen, swipe, hotspots, presenter notes (editable, kept per deck) and stopping media on slide exit. Don't build your own versions of any of these. Screen sharing: in Google Meet share the audience tab , which keeps rendering in the background. In Zoom drag the audience tab into its own window and share that; a fully covered window freezes. A deck opened from the bare player bundle without present needs workarounds: references/standalone harness.md .