seam-craft SKILL.md skillA

seam-craft from heygen-com/hyperframes is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add heygen-com/hyperframes/seam-craft@git:20260910.8820a01

Pins git:20260910.8820a01 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
heygen-com/hyperframes
Path
.claude/skills/seam-craft/SKILL.md
Versions recorded
2
Latest version
git:20260910.8820a01, committed Sep 10, 2026
First version recorded
Jul 16, 2026
Size
4,865 bytes
Repository stars
78,411
License
Apache-2.0

Render-correctness doctrine for scene-to-scene seams in HyperFrames launch videos — the prerequisites that make transitions composite correctly on the master timeline. Load when assembling the master timeline / index.html, when a white flash appears at a cut or crossfade seam (especially on dark films), when reasoning about why a transition opacity dip shows through, or when verifying the render-side mechanics of how overlapping scene wrappers blend. Covers the opaque stage-ground…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Seam Craft — render prerequisites for scene-to-scene transitions

This is the **render-correctness doctrine** for PLV scene-to-scene seams: the
prerequisites and master-timeline mechanics that make any transition composite
correctly, independent of which specific transition is chosen. The per-transition
catalog (crossfade, push-slide, zoom-through, cut-the-curve, …) lives in the
transition registry — this page is the doctrine that sits underneath all of them.

The transitions this doctrine governs are **Tier-B-ready**: pure transform / opacity /
filter on the two scene **clip wrappers** (`#el-<sid>`), no injected overlay DOM, no
per-scene cooperation. Overlay families (staggered blocks, blinds, light leak, grid
dissolve, page burn) and shader transitions are deferred to later phases.

## Stage ground prerequisite (white-flash guard)

Several templates open a window where the two wrappers' summed opacity < 1 (the
cut-the-curve mid-window cut, zoom-through's 0.15 floor, plain crossfade's
power-curve dip). Whatever is BEHIND the wrappers shows through during that
window. If the assembled `index.html` `#root` has no opaque background, the
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add heygen-com/hyperframes/seam-craft@sha256:c5aa27c6d6c088fa

The line at the top of this page pins the label git:20260910.8820a01, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_5bi44abva4t6b4c5.svg)](https://markdownregistry.com/a/art_5bi44abva4t6b4c5)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jul 16, 2026 and Sep 10, 2026, about one every 56 days.

versioncommittedcommitsizeaudit
git:20260910.8820a01 latest2026-09-10 8820a01 4,865 BA view · diff
git:20260716.e96ebd72026-07-16 e96ebd7 4,838 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4865 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

heygen-com/hyperframes · 78,411 stars · license Apache-2.0 · pushed 2026-11-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_5bi44abva4t6b4c5
GET https://markdownregistry.com/api/v1/resolve?ref=heygen-com/hyperframes/seam-craft
GET https://markdownregistry.com/api/v1/blob/c5aa27c6d6c088fa0bec2941692927975dcd382bc568f6f0ba8518e049e092fe

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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AGENTS.md AGENTS.md file
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Every file in heygen-com/hyperframes

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