render-vignette

render-vignette is a skill for Claude Code, Codex from gooseworks-ai/goose-skills. It costs 99 tokens per session (1,087 once invoked), scanned A, original, MIT.

A tool for assembling short vertical video ads from product cutouts, animated background videos, text cards, and music. The ads are designed to communicate without voice-over, including when watched muted.

In plain words
What is it for?
Use it to remove backgrounds from product images, create opening and closing cards, combine them with background video, and add normalized music to multiple ad versions.
Why use it?
It turns separate product images, background videos, copy, and music into finished ad variations. This removes the need to assemble and balance each video manually.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to remove backgrounds from product images, create opening and closing cards, combine them with background video, and add normalized music to multiple ad versions.

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Install with agentmods
npx agentmods add skills/gooseworks-ai/goose-skills/render-vignette
About the project

Goose Skills is a library of workflows and data APIs that lets coding agents handle growth and go-to-market work such as advertising, social media, content, SEO, lead generation, and customer research. It is intended for teams using Claude Code, Cursor, Codex, and similar agents. The catalogue entries are its reusable skills.

gooseworks-ai/goose-skills · 1,201 stars · on GitHub · gooseworks.ai

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add gooseworks-ai/goose-skills --skill render-vignette
Clone the repo
git clone --depth 1 https://github.com/gooseworks-ai/goose-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for render-vignette

README.md
[![agentmods](https://agentmods.dev/badge/skills/gooseworks-ai/goose-skills/render-vignette/github.svg)](https://agentmods.dev/skills/gooseworks-ai/goose-skills/render-vignette)
Your own site
<a href="https://agentmods.dev/skills/gooseworks-ai/goose-skills/render-vignette"><img src="https://agentmods.dev/badge/skills/gooseworks-ai/goose-skills/render-vignette/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for render-vignette

Your own site · 80×15
<a href="https://agentmods.dev/skills/gooseworks-ai/goose-skills/render-vignette"><img src="https://agentmods.dev/badge/skills/gooseworks-ai/goose-skills/render-vignette.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,087 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00099 $0.01087
Opus 5 $0.00049 $0.00544
Sonnet 5 $0.00020 $0.00217
Haiku 4.5 $0.00010 $0.00109

Measured 12d ago against content hash 54d2fa8c5970, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

render-vignette scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/composite_variants.py, scripts/music_and_mux.py, scripts/render_overlays.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/ads/capabilities/render-vignette/SKILL.md · 31 lines

How it starts

The opening of the file, as written. The whole thing — 31 lines — stays where its author put it; the contents beside it link to each section on GitHub.

render-vignette

Assemble a short-form 'vignette' ad from clean product cutouts composited over a kinetic background video. Motion lives in the BG video; the product rides on top as a static cutout layer. Music-led, zero VO, sub-12s, loopable — it reads muted because the product label + on-screen copy carry the message. Defaults to the V-CARD structure: a cold-open text card → a product carousel under one shared BG → an annotated specimen-sheet end card.

Run

  1. strip_product_backgrounds.py — birefnet cutout of each PDP shot to clean hard-edge alpha (no halo/shadow).
  2. render_overlays.py — PIL + rsvg-convert render the cold-open card (Boska Black, dead-center) + the annotated specimen-sheet end card (brand SVG logo + Space Grotesk annotations) as transparent 1080x1920 PNGs. FREE.
  3. composite_variants.py — one FFmpeg filter_complex per BG variant: BG (palette-aware dim) → cold-open overlay → cutouts (width-anchored, vertically centered y=(H-h)/2) → end card. h264 crf20 yuv420p +faststart 30fps. FREE.
  4. music_and_mux.py — instrumental music bed → acompressor + loudnorm I=-18:TP=-2:LRA=9 → muxed into every variant in a SEPARATE pass with explicit -map 0:v:0 -map 1:a:0. The mux is FREE; the music generation is a paid call that in prod routes through create-music-elevenlabs.

Contract

  • FREE assembly: birefnet cutout (see gap below) + PIL/rsvg overlays + FFmpeg composite + mux. No AI-rendered text; the product art/labels and on-screen copy are real, never invented.
  • The template recipe (DB) supplies the per-brand config (products, cold-open text, end-card lines, BG concept, beat timing). This capability is the generic assembler.
  • Craft rules preserved from the source molecule:
    • Cutouts stripped clean (no halo/shadow), height-anchored at vertical-center (y=(H-h)/2) so mixed-shape SKUs share one visual mid-line — never bottom-anchor (squat jars jump). For 9:16 scale by WIDTH (~75% tall bottles, ~65% squat jars).
    • Palette-aware BG dim: high-contrast/chrome BG → push saturation DOWN hard (saturation=0.50); naturally-contrasty BG → lighter dim (saturation=0.85).
    • End card = annotated specimen-sheet (EST year + rule + wordmark + rule + ingredient + positioning + claim), never a bare logo. Use the WHITE logo variant on dark BGs, cream on light.
    • Music-led, NO VO — instrumental only (VO/lyrics would fight the cold-open + end-card text). Loudnorm before the mux.
    • Mux is a SEPARATE FFmpeg pass with explicit -map 0:v:0 -map 1:a:0 (single-pass composite+mux silently ships 1 kbps garbage audio).

Read the full file on GitHub · 31 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 31 lines · 99 tokens per session scan A 54d2fa8c5970

Subscribe to this mod's changes

render-vignette is a skill published in the GitHub repository gooseworks-ai/goose-skills (1,201 stars, last pushed 10d ago), licensed MIT. It adds 99 tokens to every session and 1,087 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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