tax-advisor

tax-advisor is a skill for Claude Code from Hainrixz/agente-pagokit. It costs 120 tokens per session (1,203 once invoked), scanned A, original, MIT.

A guide to the tax and invoicing duties that can follow a successful online payment. It explains merchant of record arrangements, where another company sells to the customer and handles certain tax duties, as well as electronic invoicing rules.

In plain words
What is it for?
Use it to assess VAT, sales-tax nexus, electronic-invoice obligations, and whether a merchant of record fits a business's markets and trade-offs.
Why use it?
It separates payment collection from tax compliance, helping prevent a working checkout from hiding missing registrations, tax filings, or required fiscal documents.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the pagokit plugin — 8 skills, 8 commands, 1 agent, 5 hooks shipped together

Good fit Use it to assess VAT, sales-tax nexus, electronic-invoice obligations, and whether a merchant of record fits a business's markets and trade-offs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hainrixz/agente-pagokit/tax-advisor
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 Hainrixz/agente-pagokit --skill tax-advisor
Clone the repo
git clone --depth 1 https://github.com/Hainrixz/agente-pagokit

Made for: Claude Code.

Or install pagokit, the plugin that ships this one along with the rest of its 8 skills, 8 commands, 1 agent, 5 hooks.

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 tax-advisor

README.md
[![agentmods](https://agentmods.dev/badge/skills/hainrixz/agente-pagokit/tax-advisor/github.svg)](https://agentmods.dev/skills/hainrixz/agente-pagokit/tax-advisor)
Your own site
<a href="https://agentmods.dev/skills/hainrixz/agente-pagokit/tax-advisor"><img src="https://agentmods.dev/badge/skills/hainrixz/agente-pagokit/tax-advisor/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 tax-advisor

Your own site · 80×15
<a href="https://agentmods.dev/skills/hainrixz/agente-pagokit/tax-advisor"><img src="https://agentmods.dev/badge/skills/hainrixz/agente-pagokit/tax-advisor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 120 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,203 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 92
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00120 $0.01203
Opus 5 $0.00060 $0.00602
Sonnet 5 $0.00024 $0.00241
Haiku 4.5 $0.00012 $0.00120

Measured 8d ago against content hash 3061ce9e1eee, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

tax-advisor 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 8d 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.

skills/tax-advisor/SKILL.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

tax-advisor

A successful payment is not a compliant sale. This skill covers the gap.

The distinction that matters most

Two entirely different questions get conflated:

  1. Who collects and remits the tax? — the merchant-of-record question.
  2. Who issues the fiscal document? — the e-invoicing question.

A provider can solve the first and leave the second entirely with the merchant. In Mexico and Brazil, the second one is a legal obligation attached to the sale, and it is the one that gets forgotten because the payment works fine without it.

Merchant of record: what you actually trade

Read mor from the provider entry. When is_mor is true, that provider sells to your customer. You sell to the provider.

You gain You give up
Tax registration, collection, remittance and filing in every market it covers 4-6% more per transaction than a direct processor
No VAT thresholds to monitor, no OSS filing, no nexus tracking Their name on the customer's bank statement, not yours
Chargebacks and fraud are their problem Checkout branding, and often the customer relationship
Invoices issued for you Payout on their schedule — often 14-30 days
No entity needed in the markets they cover Whatever mor.disables_capabilities lists

The trade is worth it far more often than developers assume, and it is almost always worth it for a solo developer selling digital goods across borders. Registering for VAT in seven EU countries is not a thing one person does alongside building a product.

It is usually not worth it for a domestic business selling in its own market, where it already has an accountant and pays domestic interchange.

E-invoicing: the obligation nobody generates code for

Read regions[CODE].tax.einvoice from the catalog. Where a mandate exists, the merchant must issue a specific fiscal document for each sale, in a specific format, within a specific window.

The part that bites: the data must be collected at checkout. You cannot retro-fit an RFC, a CNPJ or a tax ID after the sale — the customer has gone. If the market mandates e-invoicing and the checkout does not collect the identifier, every sale is already non-compliant.

Read the full file on GitHub · 97 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. 8d ago First seen · 97 lines · 120 tokens per session scan A 3061ce9e1eee

Subscribe to this mod's changes

tax-advisor is a skill published in the GitHub repository Hainrixz/agente-pagokit (50 stars, last pushed 12d ago), licensed MIT. It adds 120 tokens to every session and 1,203 once invoked, about $0.0006 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 2026-09-04.

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