Borrowing it
Nothing to install: this file belongs to xuiltul/animaworks. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/xuiltul/animaworks/main/.claude/skills/bustup-frame-gen/SKILL.mdgit clone --depth 1 https://github.com/xuiltul/animaworksWrote 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.
[](https://agentmods.dev/skills/xuiltul/animaworks/bustup-frame-gen)<a href="https://agentmods.dev/skills/xuiltul/animaworks/bustup-frame-gen"><img src="https://agentmods.dev/badge/skills/xuiltul/animaworks/bustup-frame-gen/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.
<a href="https://agentmods.dev/skills/xuiltul/animaworks/bustup-frame-gen"><img src="https://agentmods.dev/badge/skills/xuiltul/animaworks/bustup-frame-gen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Rogue Agent · line 49 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 49 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00165 | $0.02034 |
| Opus 5.5 | $0.00066 | $0.00814 |
| Sonnet 5.5 | $0.00033 | $0.00407 |
| Haiku 4.5 | $0.00016 | $0.00203 |
Grade A, and why
bustup-frame-gen scanned grade A with 1 finding 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.
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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "http://127.0.0.1:18500/api/animas/<name>/assets/avatar_bustup_neutral_frame_base.png" \ How it starts
The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bustupアニメーションフレーム生成 — 疑似Live2D方式
音声ポップアップ(animaタブ長押し)のbustupを、静止画フレーム切替+CSS/JSで動かすための アセット生成手順。2026-08-20にmeiで確立。
方式: リギングなし。口3段階×瞬きのフレーム切替 + CSS呼吸/揺れ + lerp視線追従 + TTS音量(RMS)口パク。AI VTuberのデファクト(感情タグ→プリセット切替、Neuro-samaも同方式)。
成果物の契約(フロントエンドが期待する形)
配置先 <data_dir>/animas/<name>/assets/(通常 ~/.animaworks/animas/<name>/assets/):
avatar_bustup_<expr>_frame_base.png # 目開き+口閉じ(その表情の口)
avatar_bustup_<expr>_frame_blink.png # 目閉じ
avatar_bustup_<expr>_frame_half.png # 口半開き
avatar_bustup_<expr>_frame_open.png # 口開き
avatar_bustup_<expr>_frame_blinkhalf.png # 目閉じ+口半開き
<expr>は voice-popup.js のVALID_EXPRESSIONSと同じ7種: neutral / smile / laugh / troubled / surprised / thinking / embarrassed。 neutralも明示的に_neutral_を含む(既存avatar_bustup.pngの命名特例は適用しない)- 5枚×7表情=35枚。フロントは
_frame_base.pngへのHEAD 1発で存在判定するので 表情単位で5枚揃えて置く(中途半端に置かない) - フレームが無いanima/表情は自動で静的bustupへフォールバック(mei以外は当面フレーム無しでよい)
- 描画側の実装は
server/static/pages/chat/bustup-animator.js(変更不要)。 仕様の正本はdocs/issues/20260820_mei-pseudo-live2d-popup.md
手順
1. 作業ディレクトリ準備
scratchpadに表情ごとのサブディレクトリを作り、既存bustupを src.png としてコピーする。
W=<scratchpad>/bustup-frames; A=~/.animaworks/animas/<name>/assets
for e in neutral smile laugh troubled surprised thinking embarrassed; do
mkdir -p $W/$e
cp $A/avatar_bustup_${e}.png $W/$e/src.png # neutralは avatar_bustup.png の場合あり
done
2. grok image_editで差分3枚を生成(表情ごと)
scripts/gen_one.sh <expr_dir> を直列実行する(grokのheadlessに image_edit ツールがある。
プロンプト全文はスクリプト内。要点: src.png と完全同一を保ち、指定の1変化だけ加える)。
for e in neutral smile laugh troubled surprised thinking embarrassed; do
bash .claude/skills/bustup-frame-gen/scripts/gen_one.sh $W/$e
done
各dirに eyes_closed.png / mouth_half.png / mouth_open.png ができる。
1表情10分程度(timeout 600)。
3. PIL合成で残り2枚を作る — ここが最大の罠
grok image_editは元画像と解像度・フレーミングが変わる(実測: 1024×1365→864×1152)。 ただし同一呼び出しで生成された差分3枚同士はピクセル一致する。したがって:
src.png(元bustup)とはいかなる合成もしない。frame_base すら src からは作れない- base(目開き+口閉じ)と blinkhalf(目閉じ+口半開き)は差分同士の口領域pasteで合成する
What ships with it
2 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.
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.
- 1mo ago First seen · 134 lines · 165 tokens per session scan A 3ee6c27e89ee
bustup-frame-gen is a skill published in the GitHub repository xuiltul/animaworks (268 stars, last pushed today), licensed Apache-2.0. It adds 165 tokens to every session and 2,034 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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