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/jpkWrote 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/jpk)<a href="https://agentmods.dev/skills/dithiothreitol/jdg-ksiegowy/jpk"><img src="https://agentmods.dev/badge/skills/dithiothreitol/jdg-ksiegowy/jpk/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/jpk"><img src="https://agentmods.dev/badge/skills/dithiothreitol/jdg-ksiegowy/jpk.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 | $0.00089 | $0.00887 |
| Opus 5.5 | $0.00036 | $0.00355 |
| Sonnet 5.5 | $0.00018 | $0.00177 |
| Haiku 4.5 | $0.00009 | $0.00089 |
Grade A, and why
jpk 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Generator JPK_V7M
Generuje miesięczną deklarację VAT (JPK_V7M(3)) na podstawie faktur zapisanych w data/jdg_ksiegowy.db.
Plik wynikowy: data/jpk/JPK_V7M_YYYY_MM.xml — gotowy do wysyłki przez bramkę MF lub e-Mikrofirma.
Wymagane dane
- month — miesiąc (1-12)
- year — rok (np. 2026)
Jeśli user mówi "JPK za poprzedni miesiąc" — policz miesiąc/rok względem daty bieżącej (2026-04-17), nie wymyślaj.
Wywołanie
python3 skills/jpk/scripts/generate_jpk.py --month 3 --year 2026
Zwraca JSON:
{
"period": "03/2026",
"invoice_count": 4,
"total_net": "42000.00",
"total_vat": "9660.00",
"file_path": "data/jpk/JPK_V7M_2026_03.xml"
}
Korekta złożonego JPK
--correction (+ opcjonalnie --reason "...") generuje korektę z CelZlozenia=2 do osobnego pliku
data/jpk/JPK_V7M_YYYY_MM_K1.xml (oryginał zostaje jako dowód). Pełny przebieg — skill jpk-korekta.
Po wygenerowaniu
Pokaż userowi: okres, liczbę faktur, sumę netto + VAT, ścieżkę pliku (jako klikalny markdown link).
Przypomnij: termin wysyłki JPK_V7M to 25-ty następnego miesiąca.
Przed wysyłką zwaliduj XSD: python3 skills/jpk/scripts/validate_jpk.py --xml-path <plik>
(bramka nie waliduje lokalnie). Wysyłka — skill jpk-submit.
Wymagane dane sprzedawcy (z .env)
SELLER_NIP, SELLER_FIRST_NAME, SELLER_LAST_NAME, SELLER_BIRTH_DATE, SELLER_TAX_OFFICE_CODE.
Jeśli skrypt rzuci błąd o braku któregoś — przerwij i powiedz userowi żeby uzupełnił .env.
Import usług / odwrotne obciążenie
Koszty oznaczone reverse_charge (skill expense --reverse-charge) są rozliczane automatycznie:
samonaliczony VAT należny trafia do K_27/K_28 (dostawca spoza UE) lub K_29/K_30
(dostawca z UE, art. 28b) po stronie sprzedaży, a jednocześnie do odliczenia (K_42/K_43) —
więc dla działalności opodatkowanej efekt na kwotę do zapłaty (P_51) jest zerowy. Ta sama
faktura pojawia się w ewidencji sprzedaży i zakupu.
Uwagi
- Skrypt liczy sumy z rejestru, nie z surowych XML — upewnij się że wszystkie faktury miesiąca zostały wygenerowane przez skill
invoice(czyli są w SQLite). - Jeśli
invoice_count == 0— ostrzeż usera, prawdopodobnie zapomniał wystawić faktury albo pomylił miesiąc.
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.
- 5d ago Changed · +6 lines 8a05c5df7811
- 1mo ago First seen · 58 lines · 89 tokens per session scan A e5b62ad86fd4
jpk is a skill published in the GitHub repository dithiothreitol/jdg-ksiegowy (9 stars, last pushed 5d ago), licensed MIT. It adds 89 tokens to every session and 887 once invoked, about $0.0004 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 2026-08-31.
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