invoice

invoice is a skill for Claude Code, Codex from nexu-io/html-anything. It costs 26 tokens per session (189 once invoked), scanned A, original, Apache-2.0.

A printable invoice layout containing seller and customer details, billed items, tax, totals, and payment instructions.

In plain words
What is it for?
Creating invoices with line items, quantities, prices, taxes, due dates, totals, and payment guidance.
Why use it?
It gives payment records a consistent one-page structure that can be printed clearly.

Skill for Claude CodeCodex

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

About the project

html-anything is a local AI-assisted HTML editor in which coding-agent command-line tools create documents such as articles, presentations, posters, prototypes, and reports from reusable templates. People use it to produce HTML and export it to services such as WeChat, X, and Zhihu or to HTML and PNG files. The catalogue entries are the skills and instructions that define its output surfaces and workflows.

nexu-io/html-anything · 8,658 stars · on GitHub · open-design.ai

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.

agentmods
npx agentmods add skills/nexu-io/html-anything/invoice
Any agent
npx skills add nexu-io/html-anything --skill invoice
Clone the repo
git clone --depth 1 https://github.com/nexu-io/html-anything

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 invoice

README.md
[![agentmods](https://agentmods.dev/badge/skills/nexu-io/html-anything/invoice.svg)](https://agentmods.dev/skills/nexu-io/html-anything/invoice)
Your own site
<a href="https://agentmods.dev/skills/nexu-io/html-anything/invoice"><img src="https://agentmods.dev/badge/skills/nexu-io/html-anything/invoice.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 189 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00026 $0.00189
Opus 5 $0.00013 $0.00095
Sonnet 5 $0.00005 $0.00038
Haiku 4.5 $0.00003 $0.00019

Measured 6d ago against content hash 45f2baeacf53, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

invoice 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.

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.

next/src/lib/templates/skills/invoice/SKILL.md · 24 lines

What it actually says

【模板: 可打印发票】 【意图】A4 可打印的发票单页。 【布局】

  • Header: 发票号 / 日期 / 截止日
  • From / Bill to 两块
  • Line items table (描述 / 数量 / 单价 / 金额)
  • Tax breakdown + Totals (右对齐)
  • Payment instructions 区 【设计细节】
  • @media print 样式; 颜色对比保留
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 24 lines · 26 tokens per session scan A 45f2baeacf53

Subscribe to this mod's changes

invoice is a skill published in the GitHub repository nexu-io/html-anything (8,658 stars, last pushed 13d ago), licensed Apache-2.0. It adds 26 tokens to every session and 189 once invoked, about $0.0001 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 2026-08-30.

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