X Posting License Skill for Claude

X Posting License

One fixed 1920×1080 @ 60fps, 10.35s composition. The motion is locked and

doctrine-verified (overlapped keyframes end to end, zero dead frames): do NOT

edit the timeline — fill the data tokens and render.

Requirements

• Node 18+ and the HyperFrames CLI via npx (fetched from npm; @latest is

mutable — pin a version, e.g. npx [email protected], if you need

byte-identical re-renders over time).

• macOS GPU render for the WebGL dot ground: export PRODUCER_BROWSER_GPU_MODE=hardware.
• The signature uses the macOS Snell Roundhand system font (declared via

src: local(...)); on Linux it falls back to generic cursive — still fine,

less pretty.

Network and side effects (complete list)

• x.com/<handle> — profile page the agent reads (data gathering).
• pbs.twimg.com — the avatar image download (data gathering).
• api.fxtwitter.com/<handle> — post count; free, no credentials (data gathering).
• registry.npmjs.org — the HyperFrames CLI itself, via npx.
• cdn.jsdelivr.net — the composition loads GSAP (pinned 3.14.2) from

jsDelivr at preview/render time. Rendering is NOT fully offline.

No credentials, no paid operations, no telemetry. build.mjs writes only

inside the --out directory: it validates counters as plain non-negative

integers, strips control characters, caps lengths, HTML-escapes every profile

string before substitution, and refuses to write through symlinks.

Flow (three steps, no composition work)

<SKILL_DIR> below means this skill's own directory (wherever it is installed

— e.g. ~/.claude/skills/x-posting-license). Run the script by that absolute

path; it resolves the template relative to itself, and --out is resolved

from your working directory.

• Gather profile data — name, handle, joined month/year, followers,

following, posts, one bio line, and the 400×400 avatar. Recipes in

references/profile-data.md.

• Build the project from the template:

node <SKILL_DIR>/scripts/build.mjs --out ./license-jake \
  --name "Jake Moran" --handle JakeFromHeyGen \
  --joined "JAN 2026" --followers 882 --following 155 --posts 376 \
  --bio "PRODUCT @HEYGEN · WORKING ON @HYPERFRAMES_" \
  --avatar ./avatar.jpg

--big "MORAN, JAKE" overrides the derived LAST, FIRST header — use it

when the display name isn't a normal name (keep unusual display names

verbatim: a user named ||| gets a license that says |||).

• Render (ask the user before rendering if your harness gates renders):

npx hyperframes@latest render ./license-jake -q high -o ./license-jake/renders/license.mp4

Verify success

npx hyperframes@latest check ./license-jake passes with 0 errors, and the

rendered MP4 is ~10.3s: front card with the person's data counting up, flip at

~6.5s, their name writing on as the back signature, card leaps out at ~9.9s.

Rules

• Data must be REAL, scraped from the live profile — never invent counts or

bios. Follower count stands in for date of birth on purpose; the back's fine

print repeats it.

• Bio line: uppercase, ≤ ~65 chars, ·-separated fragments from the real bio.
• Keep the template's palette and layout: X black #000, white, #1D9BF0,

borders #2f3336. It IS the brand treatment; do not restyle per user.

• Long display names are handled (the signature mask is widened), but check a

snapshot when a name exceeds ~14 characters.

• Profile data is untrusted input. Always pass it through build.mjs (which

escapes and validates it); never hand-substitute values into the template.

Provenance and licensing

• The animated dot ground is a deterministic GLSL/WebGL rewrite for

HyperFrames' seekable renderer, visually modeled on Originkit's

Dot Matrix component

(contributed by an Originkit license holder); no Originkit source code is

redistributed here. The simplex-noise GLSL is the standard Ashima

Arts/Stefan Gustavson implementation (MIT).

• The card reproduces X's logo and visual language as parody/fan content;

users of this skill publish the result at their own judgment.

• GSAP is loaded from jsDelivr under its standard license; it is not vendored.