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/dithiothreitol/jdg-ksiegowynpx agentmods add skills/dithiothreitol/jdg-ksiegowy/tax-calculatorWrote 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/dithiothreitol/jdg-ksiegowy/tax-calculator)<a href="https://agentmods.dev/skills/dithiothreitol/jdg-ksiegowy/tax-calculator"><img src="https://agentmods.dev/badge/skills/dithiothreitol/jdg-ksiegowy/tax-calculator/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/dithiothreitol/jdg-ksiegowy/tax-calculator"><img src="https://agentmods.dev/badge/skills/dithiothreitol/jdg-ksiegowy/tax-calculator.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00140 | $0.00713 |
| Opus 5 | $0.00070 | $0.00357 |
| Sonnet 5 | $0.00028 | $0.00143 |
| Haiku 4.5 | $0.00014 | $0.00071 |
Grade A, and why
tax-calculator 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.
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
Kalkulator podatkowy JDG (ryczałt)
Liczy podatki z pojedynczej faktury lub z miesięcznego przychodu.
Wymagane dane
- netto — kwota netto w PLN
Opcjonalnie:
vat-rate— domyślnie23ryczalt-rate— domyślnie12annual-revenue— szacunkowy roczny przychód (do wyznaczenia progu ZUS); jeśli nie podasz, skrypt zakładanetto * 12month,year— domyślnie bieżący
Wywołanie
python3 skills/tax-calculator/scripts/calculate.py --netto 10500
Z pełnym kontekstem:
python3 skills/tax-calculator/scripts/calculate.py \
--netto 10500 --vat-rate 23 --ryczalt-rate 12 --annual-revenue 126000
Zwraca JSON na stdout:
{
"netto": "10500",
"vat_rate": "23%",
"vat_amount": "2415.00",
"brutto": "12915.00",
"ryczalt_rate": "12%",
"ryczalt_amount": "1260.00",
"zus_health_monthly": "...",
"zus_tier": "...",
"zus_deductible_monthly": "...",
"estimated_annual_revenue": "126000",
"deadlines": {
"ryczalt_zus": "2026-05-20",
"vat_jpk": "2026-05-25"
},
"total_monthly_tax": "..."
}
Po obliczeniu
Pokaż userowi w czytelnej tabeli (nie surowy JSON): VAT, ryczałt, ZUS zdrowotne, łącznie do zapłaty + dwa terminy. Zaznacz że kwota ZUS to składka zdrowotna (społeczne nie liczone — zakładamy stałą stawkę).
Uwagi
- Wszystkie kwoty jako Decimal — nigdy float.
- Próg ZUS jest wyliczany w
src/jdg_ksiegowy/tax/zus.py(single source of truth) — nie hardkoduj progów. - Stawka ryczałtu 12% jest domyślna dla JDG IT/konsulting; jeśli user ma inną branżę — dopytaj.
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.
- 12d ago First seen · 63 lines · 0 tokens per session scan A b20a19a2de5a
tax-calculator is a skill published in the GitHub repository dithiothreitol/jdg-ksiegowy (5 stars, last pushed 1mo ago), licensed MIT. It adds 140 tokens to every session and 713 once invoked, about $0.0007 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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