Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/llamadrive/bengo-toolkitnpx agentmods add commands/llamadrive/bengo-toolkit/child-support-calcWrote 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/commands/llamadrive/bengo-toolkit/child-support-calc)<a href="https://agentmods.dev/commands/llamadrive/bengo-toolkit/child-support-calc"><img src="https://agentmods.dev/badge/commands/llamadrive/bengo-toolkit/child-support-calc.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00027 | $0.00464 |
| Opus 5 | $0.00014 | $0.00232 |
| Sonnet 5 | $0.00005 | $0.00093 |
| Haiku 4.5 | $0.00003 | $0.00046 |
Grade A, and why
child-support-calc 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 6d 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.
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.
What it actually says
離婚後の養育費（民法 766条・877条）、または別居中の婚姻費用（民法 760条）を、令和元年 12 月改定の標準算定方式に基づいて計算する。東京家裁・大阪家裁公開の算定表と原理的に一致する式を用い、決定論的な目安額を提示する。
計算項目
- 養育費: 子の扶養費。離婚後の監護親が他方に請求
- 婚姻費用: 夫婦間の生活費分担。別居中に収入の低い側が請求
計算方式
- 基礎収入 = 年収 × 基礎収入割合（給与所得者・自営業者で異なる）
- 生活費指数: 親 100 / 子 0-14 歳 62 / 15-19 歳 85
- 養育費月額 = (子の生活費 × 義務者基礎収入 / 両親基礎収入合計) / 12
- 婚姻費用月額 = (権利者世帯の生活費 - 権利者基礎収入) / 12
$ARGUMENTS: 対話で入力するか、JSON ファイルを指定する。
使い方
まず skills/child-support-calc/SKILL.md を Read ツールで読み込み、そこに記載された手順に従って実行する。
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.
- 6d ago First seen · 25 lines · 27 tokens per session scan A dfbd64076676
child-support-calc is a command published in the GitHub repository llamadrive/bengo-toolkit (6 stars, last pushed 1mo ago), licensed MIT. It adds 27 tokens to every session and 464 once invoked, about $0.0001 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 2026-08-31.
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