pt-irs-runbook

pt-irs-runbook is a skill for Claude Code, Codex from pproenca/dot-skills. It costs 131 tokens per session (1,503 once invoked), scanned A, original, MIT.

A step-by-step guide to filing Portugal’s personal income tax return, called Modelo 3, including tax residency, income types, required annexes, rates, and deadlines.

In plain words
What is it for?
It is for declaring Portuguese rent, employment income, pensions, self-employment, property gains, capital income, and foreign income, and for choosing the relevant Modelo 3 annexes.
Why use it?
It helps taxpayers work out which rules and forms apply to their situation, while identifying cases that need a certified Portuguese accountant.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for declaring Portuguese rent, employment income, pensions, self-employment, property gains, capital income, and foreign income, and for choosing the relevant Modelo 3 annexes.

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Install with agentmods
npx agentmods add skills/pproenca/dot-skills/pt-irs-runbook
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add pproenca/dot-skills --skill pt-irs-runbook
Clone the repo
git clone --depth 1 https://github.com/pproenca/dot-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for pt-irs-runbook

README.md
[![agentmods](https://agentmods.dev/badge/skills/pproenca/dot-skills/pt-irs-runbook/github.svg)](https://agentmods.dev/skills/pproenca/dot-skills/pt-irs-runbook)
Your own site
<a href="https://agentmods.dev/skills/pproenca/dot-skills/pt-irs-runbook"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/pt-irs-runbook/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.

agentmods 80×15 button for pt-irs-runbook

Your own site · 80×15
<a href="https://agentmods.dev/skills/pproenca/dot-skills/pt-irs-runbook"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/pt-irs-runbook.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 131 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,503 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00131 $0.01503
Opus 5 $0.00066 $0.00751
Sonnet 5 $0.00026 $0.00301
Haiku 4.5 $0.00013 $0.00150

Measured 6d ago against content hash 7382059bdc0c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pt-irs-runbook 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.

The scan reads SKILL.md. This mod also ships 3 executable files (references/queries/property-capital-gain.py, references/queries/rental-tax-estimate.py, references/queries/residency-days.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/.experimental/pt-irs-runbook/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Portugal IRS Filing Runbook

A diagnostic runbook for Portuguese personal income tax (IRS). Each symptom is a filing situation; each decision tree routes from the situation to the correct annex, autonomous rate, and deadline, then terminates in a concrete filing action or a clear "escalate to a contabilista certificado for {reason}".

Not tax advice. This skill encodes the CIRS and Portal das Finanças rules as verified on the cited dates. Tax rates and thresholds change with each Orçamento do Estado. Always confirm figures against the live Art. 68/72 text and the official Modelo 3 / IRS automático screens before submitting, and involve a contabilista certificado for anything non-routine. Default income year is 2025 (return filed 1 Apr – 30 Jun 2026) unless stated otherwise.

When to Apply

  • The user asks how to file a Modelo 3 (PT annual income tax return) or which annexes apply to their income.
  • The user needs to know whether they are a PT tax resident or non-resident, and what that changes.
  • The user receives Portuguese-source income — rent, a property/share sale, salary, pension, or self-employment fees — and must declare it.
  • The user is a non-resident landlord (or has foreign income as a resident) and needs the right rate plus double-taxation relief.
  • The user asks about a specific PT regime: IRS automático, IRS Jovem, IFICI (the post-NHR regime), englobamento, mais-valias reinvestment.

This skill is Portugal-specific. For UK/other-country filing it is out of scope (though it covers the PT side of a cross-border situation, e.g. PT rental income that also appears on a UK SA106).

How to Use

  1. Always start at residency. Read residency-tree. Residency status (Art. 16) determines the entire regime — worldwide vs PT-source-only income, progressive vs flat rates, deductions vs none.
  2. Then check whether a return is even required and which annexes: filing-obligation-tree.
  3. Open the tree for each income type the user has. A taxpayer often needs several annexes at once.
  4. Look up every rate/threshold in one place: rates-and-deductions.md is the single source of truth; the trees link to it rather than restating numbers.
  5. Estimate figures deterministically with the calculators in references/queries/ (day-count, rental tax, capital gain), then verify on Portal das Finanças.
  6. Summarise the outcome with assets/templates/report.md.

Read the full file on GitHub · 91 lines

Changes

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.

  1. 6d ago First seen · 91 lines · 131 tokens per session scan A 7382059bdc0c

Subscribe to this mod's changes

pt-irs-runbook is a skill published in the GitHub repository pproenca/dot-skills (205 stars, last pushed 24d ago), licensed MIT. It adds 131 tokens to every session and 1,503 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 2026-09-03.

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