verificar-meu-nexo-de-imposto-sobre-vendas

verificar-meu-nexo-de-imposto-sobre-vendas is a skill for Claude Code, Codex from gethouston/houston. It costs 174 tokens per session (2,294 once invoked), scanned A, original, MIT.

A sales-tax nexus checker for US states. Economic nexus is a state tax obligation triggered after sales or transaction activity passes that state's threshold; physical presence can also trigger it.

In plain words
What is it for?
Use it to compare revenue and transaction counts with state thresholds, identify when thresholds were crossed, and flag employees, offices, or inventory creating physical presence.
Why use it?
It replaces state-by-state manual comparisons and highlights where the company may need to register or investigate its sales-tax obligations.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument; installed under .agents/ (shared by several agents).

Good fit Use it to compare revenue and transaction counts with state thresholds, identify when thresholds were crossed, and flag employees, offices, or inventory creating physical presence.

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Install with agentmods
npx agentmods add skills/gethouston/houston/verificar-meu-nexo-de-imposto-sobre-vendas
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 gethouston/houston --skill verificar-meu-nexo-de-imposto-sobre-vendas
Clone the repo
git clone --depth 1 https://github.com/gethouston/houston

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.

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README.md
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Per session 174 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,294 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 $0.00174 $0.02294
Opus 5 $0.00087 $0.01147
Sonnet 5 $0.00035 $0.00459
Haiku 4.5 $0.00017 $0.00229

Measured 9d ago against content hash 3472af9ced88, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

verificar-meu-nexo-de-imposto-sobre-vendas 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 9d 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.

store/agents-i18n/pt/bookkeeping/.agents/skills/verificar-meu-nexo-de-imposto-sobre-vendas/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verificar meu nexo de imposto sobre vendas

Verificação de nexo econômico estado por estado. Eu somo a receita e as transações por estado dos EUA para o período, comparo com o limite de cada estado, identifico o mês de ultrapassagem, e sinalizo os acionadores de nexo físico (funcionários, escritórios, estoque) independentemente da receita. A exposição é classificada do maior para o menor valor em dólares; os três estados mais próximos de ultrapassar aparecem como alertas antecipados. Eu nunca registro e nunca recolho.

Quando usar

  • "onde devemos imposto sobre vendas" / "verificação de nexo" / "exposição de imposto sobre vendas por estado".
  • Trimestral, ao final do trimestre fiscal.
  • A empresa ultrapassa uma marca redonda de receita ($500 mil, $1 milhão, $5 milhões) ou adiciona funcionários em um novo estado.

Conexões que preciso

Eu executo trabalho externo através do Composio. Antes desta habilidade rodar, verifico se as categorias abaixo estão conectadas. Se faltar, nomeio a categoria, peço para você conectar na aba Integrações, e paro.

  • Stripe (cobrança), obrigatório para extrair as cobranças com estado de cobrança / envio para a agregação de receita por estado. Obrigatório se o Stripe for sua principal fonte de contratos.
  • QuickBooks Online ou Xero (contabilidade), extrai as tags de estado de fatura / cliente como alternativa ou complemento ao Stripe. Opcional.

Se nenhuma das categorias obrigatórias estiver conectada, eu paro e peço para você conectar o Stripe primeiro, já que a maioria das startups fatura através dele.

Informações que preciso

Eu leio primeiro o seu contexto contábil. Para cada campo obrigatório que estiver faltando, faço UMA pergunta em linguagem simples (melhor modalidade: aplicativo conectado > envio de arquivo > URL > colar) e espero.

  • O estado sede da sua empresa - Obrigatório. Por quê: base do nexo físico; você deve imposto sobre vendas lá independentemente da receita. Se estiver faltando, pergunto: "Em qual estado a empresa está sediada ou foi constituída?"
  • Como você fatura clientes e onde os contratos ficam - Obrigatório. Por quê: define a fonte que eu uso para a receita por estado. Se estiver faltando, pergunto: "Como vocês faturam os clientes, principalmente pelo Stripe, pelo QuickBooks ou Xero, ou em outro lugar?"
  • Estados onde você já coleta ou declara imposto sobre vendas - Opcional. Por quê: me permite marcar estados já registrados como "sem ação" em vez de "nova exposição". Se estiver faltando, pergunto: "Vocês já são registrados para coletar imposto sobre vendas em algum lugar? Se não tiver, eu continuo e sinalizo toda ultrapassagem como nova."
  • Onde seus funcionários trabalham fisicamente - Opcional. Por quê: qualquer funcionário W-2 em um estado cria nexo físico independentemente da receita. Se estiver faltando, pergunto: "Vocês têm funcionários trabalhando em estados além do estado sede? Se não tiver, eu anoto como pendente e destaco as verificações de nexo físico para o usuário confirmar."

Read the full file on GitHub · 104 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. 9d ago First seen · 104 lines · 174 tokens per session scan A 3472af9ced88

Subscribe to this mod's changes

verificar-meu-nexo-de-imposto-sobre-vendas is a skill published in the GitHub repository gethouston/houston (113 stars, last pushed yesterday), licensed MIT. It adds 174 tokens to every session and 2,294 once invoked, about $0.0009 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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