adv-art

adv-art is a skill for Codex from YunYouJun/advjs. It costs 72 tokens per session (1,560 once invoked), scanned A, original, MPL-2.0.

A visual-asset workflow for ADV.JS, a game engine for visual novels and interactive stories. It plans, creates, checks, and publishes artwork such as character poses, backgrounds, and illustrations.

In plain words
What is it for?
Use it to define an art style, prepare an asset list, create character and scene artwork, replace placeholders, and track versioned public asset paths.
Why use it?
It helps keep artwork consistent and makes missing, unlicensed, or incorrectly published assets easier to find.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions Codex.

Good fit Use it to define an art style, prepare an asset list, create character and scene artwork, replace placeholders, and track versioned public asset paths.

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Install with agentmods
npx agentmods add skills/yunyoujun/advjs/adv-art
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 YunYouJun/advjs --skill adv-art
Clone the repo
git clone --depth 1 https://github.com/YunYouJun/advjs

Made for: 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 adv-art

README.md
[![agentmods](https://agentmods.dev/badge/skills/yunyoujun/advjs/adv-art/github.svg)](https://agentmods.dev/skills/yunyoujun/advjs/adv-art)
Your own site
<a href="https://agentmods.dev/skills/yunyoujun/advjs/adv-art"><img src="https://agentmods.dev/badge/skills/yunyoujun/advjs/adv-art/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 adv-art

Your own site · 80×15
<a href="https://agentmods.dev/skills/yunyoujun/advjs/adv-art"><img src="https://agentmods.dev/badge/skills/yunyoujun/advjs/adv-art.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,560 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 $0.00072 $0.01560
Opus 5.5 $0.00029 $0.00624
Sonnet 5.5 $0.00014 $0.00312
Haiku 4.5 $0.00007 $0.00156

Measured 1mo ago against content hash 3f13098bef86, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

adv-art 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 1mo ago.

The scan reads SKILL.md. This mod also ships 8 executable files (scripts/audit-assets.mjs, scripts/audit-cos-release.mjs, scripts/audit-cos-remote.mjs, …), 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/adv-art/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ADV Art Pipeline

Turn story requirements into reproducible, licensed, runtime-ready visual assets. Keep logical asset identity separate from versioned public URLs.

Workflow

1. Freeze an art bible

Read character cards, scene cards, the story outline, and existing UI proportions. Define:

  • shared style, line quality, palette, lighting, period, camera language, and prohibited motifs;
  • character silhouette, body proportions, clothing, fixed accessories, color swatches, and pose rules;
  • a required expression matrix per visible character;
  • background aspect ratios and which moments require one-off CG rather than reusable scenery.

Do not generate final images until the recurring character design and expression names are stable.

2. Plan logical assets

Use stable lowercase IDs. Keep pose and expression names semantic (standing/sad), not sequential (image-07). Add every required character expression to the manifest before generation so missing variants are detectable.

Read references/asset-manifest.md before creating the manifest.

3. Generate and review originals

When an image-generation capability is available, generate original assets from the art bible and each card's imagePrompt. Keep character identity, outfit, crop, lighting, and transparent-background requirements explicit in every expression request.

Inspect each result before accepting it. Reject identity drift, accidental text, extra limbs, clipped ears/hands/tails, inconsistent costume details, opaque halos, or backgrounds embedded in tachie. Preserve the model/tool name, prompt version, generation date, and content license in provenance metadata.

For scene backgrounds in a local Codex workflow, read references/codex-authoring.md and use the task/candidate protocol. Codex built-in image generation is the preferred first executor when available, but it is not part of the asset domain contract. A successful generation is only a candidate; never register it before the user visually confirms that exact file.

Read the full file on GitHub · 107 lines

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. 1mo ago First seen · 107 lines · 72 tokens per session scan A 3f13098bef86

Subscribe to this mod's changes

adv-art is a skill published in the GitHub repository YunYouJun/advjs (328 stars, last pushed yesterday), licensed MPL-2.0. It adds 72 tokens to every session and 1,560 once invoked, about $0.0003 per session on Opus 5.5. 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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