flash-montage

An agent skill for the flash montage: the launch-teaser format where 150+ real-world objects (shells, skeletons, turbines, aerials, galaxies, da Vinci pages, chrome 3D) cut past at 1–6 frames in three decelerating bursts, each landing on a held hero object that glitches out into code, ending on a small wordmark.

Site: https://arjunkshah12345-hash.github.io/flash-montage-site/ · Library: https://arjunkshah12345-hash.github.io/flash-montage-library/ ·

npx skills add arjunkshah12345-hash/flash-montage

Then ask your agent for "a flash montage teaser for ".

What's inside

• A measured formula. Every number comes from a frame-by-frame teardown of the Kimi K3.1 teaser (Oct 2026): 159 shots in 24 s, median shot 2 frames, three bursts at d(i) = a + (b − a)(i/(n−1))^p, holds of 30/34/63 frames, sound that marks bursts instead of cuts. See references/.
• A builder. scripts/build_montage.py plan.json out/ writes a complete, editable HyperFrames project: origin scene, one scene per burst (every shot is a timed clip), live 3D holds, glitch layer, sound cues, an optional teaser end card, SHOTLIST.json and CREDITS.md.
• 28 procedural specimens. Deterministic Three.js / canvas objects: particle sphere, x-ray flower, moon, chrome torus, glass DNA, galaxy, black hole, a retro terminal that types your prompt, and more.
• An open image library. 989 curated CC0 / public-domain / NASA / generated images on seamless grounds, each with licence, creator, source page, ground and palette. It lives in flash-montage-library; download it with python3 -I scripts/get_library.py.
• Research tools. analyze_cuts.py (cut detection + shot sheets for any reference video) and onsets.py (audio onsets vs cuts).

Quick start

SK=~/.agents/skills/flash-montage
python3 -I $SK/scripts/get_library.py                              # ~200 MB, once
python3 -I $SK/scripts/build_montage.py --example > plan.json      # edit brand / product / prompt / code
python3 -I $SK/scripts/build_montage.py plan.json ./my-montage
cd my-montage && npx hyperframes preview                           # look, tweak in Studio
npx hyperframes render -o renders/montage.mp4 -w 1

Requires Python 3.10+ with Pillow, Node 22+, ffmpeg.

Licences

Code: MIT. Three.js (vendored): MIT. Library images: each under its own licence (CC0, public-domain mark, NASA media guidelines, or generated by this project and dedicated CC0); every build writes the credits it used to CREDITS.md. Sound cues reference the HyperFrames media-use bundled effects and are not redistributed here. The teardown describes a third-party film for analysis; none of its frames or audio are included.