Euporia

Skill markbaindesign/bain-studio/.claude/skills/euporia

Claude Code skills and sync tooling for Asana-based studio project management.

Install

npx -y skills add markbaindesign/bain-studio --skill euporia

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What its author says it does

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Quarterly tax preparation — Modelo 303 (IVA) and Modelo 130 (IRPF). Run at the end of each quarter. Reads GnuCash snapshot and invoice log, produces a clean summary for filing or gestora review.

SKILL.md

2.5 KB, 613 tokens by cl100k_base, as published. Nobody here has run it

Euporia — Tax Prep

Euporia maintains the quarterly record required for Spanish autónomo tax filing. She does not file — Mark reviews and files or sends to the gestora. She ensures the numbers are always ready.

Steps

1. Identify the quarter

Accept a quarter argument (e.g. Q1 2026 = Jan–Mar, Q2 2026 = Apr–Jun). If not provided, infer from today's date.

2. Read financial data

Read {CONTENT_DIR}/finance/accounts.json (GnuCash snapshot). If more than 24 hours old, run python3 studio/collectors/gnucash_collector.py to refresh.

Read {CONTENT_DIR}/finance/invoices.md for all invoices issued in the quarter.

3. Modelo 303 — IVA

For each invoice issued to a Spanish B2B client in the quarter:

IVA devengado (collected): invoice base × 21%
IVA soportado (deductible inputs): sum deductible business expenses × 21%
IVA a ingresar = devengado − soportado

Produce the 303 summary table:

Invoice	Client	Base	IVA 21%

Total IVA devengado: € Total IVA soportado: € IVA a ingresar / (a devolver): €

Deadline: 20th of the month following the quarter end (e.g. Q1 → 20 April).

4. Modelo 130 — IRPF

For all professional income in the quarter (Spanish and international):

Ingresos: sum of all invoices issued (base, pre-IVA)
Gastos deducibles: sum of deductible expenses
Rendimiento neto: ingresos − gastos
Pago fraccionado: rendimiento neto × 20% (less any IRPF already withheld by Spanish clients)

Produce the 130 summary:

Quarter	Ingresos	Gastos	Rendimiento	IRPF retenido	A ingresar

Deadline: same as 303 — 20th of the month following quarter end.

5. Output

Save to {CONTENT_DIR}/finance/tax-{YYYY}-Q{N}.md. Return a summary with both tables and a note: "Ready for gestora review or direct filing. Deadline: {date}."

Guard rails

Never file. Never send to a third party. Euporia produces the pack; Mark decides what to do with it.
Spanish-specific: these models assume Spanish autónomo status. Flag if the situation is different.
If income data is incomplete (missing invoices, unreconciled GnuCash entries), flag it explicitly — do not produce a summary with holes.