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Eternal Invoice Generator
by
Eternal0404
· GitHub ↗
· v1.0.0
· MIT-0
96
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0
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0
Active Installs
1
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Install in OpenClaw
/install eternal-invoice-generator
Description
Generate professional PDF invoices, quotes, reminders, and recurring bills with customizable items, taxes, discounts, and payment details from the command line.
README (SKILL.md)
Invoice Generator
Create professional PDF invoices from the command line.
Quick Start
python3 scripts/invoice.py create \
--from "Your Business Name" \
--to "Client Name" \
--item "Consulting,8hrs,75" \
--item "Design,3hrs,100" \
--due 14
Commands
| Command | Description |
|---|---|
create |
Generate a new invoice PDF |
estimate |
Create a quote/estimate instead |
recurring |
Set up a recurring invoice template |
list |
List generated invoices |
remind |
Generate a payment reminder |
Item Format
Items are specified as: "Description,Quantity,UnitPrice"
Examples:
"Web Development,40,85"— 40 hours at $85/hr"Logo Design,1,1500"— flat rate $1500"Hosting,12,29.99"— 12 months at $29.99/mo
Options
| Flag | Default | Description |
|---|---|---|
--from |
(required) | Your business/personal name |
--from-email |
Your email | |
--from-address |
Your address | |
--to |
(required) | Client name |
--to-email |
Client email | |
--to-address |
Client address | |
--item |
(repeatable) | Line items |
--tax |
0 | Tax percentage |
--discount |
0 | Discount percentage or flat amount |
--due |
30 | Payment due in N days |
--currency |
USD | Currency code |
--notes |
Additional notes | |
--prefix |
INV | Invoice number prefix |
--bank |
Bank details for payment | |
--output |
auto | Output filename |
Output
Generates a clean, professional PDF with:
- Invoice number (auto-incremented)
- Issue date and due date
- Itemized line items with subtotals
- Tax, discount, and total calculations
- Payment terms and bank details
- Professional formatting
Templates
Invoices use a clean minimal template by default. To customize:
- Edit
scripts/invoice_template.html - Add your logo to
assets/logo.png
Usage Guidance
This skill appears to do what it says: generate invoices as PDFs. Before installing/using it, consider: (1) You must install the fpdf2 Python package (pip install fpdf2); the package is not installed automatically. (2) The tool will create ~/.invoices/counter.json to track auto-increment numbers and will write PDF files to your current directory by default — review or remove that file if you don't want persistent numbering. (3) SKILL.md references template and asset files (scripts/invoice_template.html, assets/logo.png) that are not included; if you need custom templates, add your own and verify formatting. (4) The script does not make network calls or request credentials, but it will include any bank/account details or client data you pass on the generated PDFs — treat output files as sensitive. (5) If you have security concerns, run the script in an isolated environment (virtualenv/container) and inspect the full file (note the provided invoice.py was truncated in the package listing; ensure you have the complete source before running).
Capability Analysis
Type: OpenClaw Skill
Name: eternal-invoice-generator
Version: 1.0.0
The skill bundle is a legitimate utility for generating PDF invoices using the fpdf2 library. The Python script (scripts/invoice.py) handles invoice numbering via a local state file in the user's home directory (~/.invoices/counter.json) and generates professional PDFs based on provided arguments. No indicators of data exfiltration, unauthorized execution, or prompt injection were found.
Capability Assessment
Purpose & Capability
Name/description (invoice generation) aligns with the included script. The script implements create, list, and remind commands and generates PDFs using fpdf2. It persists an invoice counter in ~/.invoices/counter.json to auto-increment invoice numbers — this is coherent with the stated feature set.
Instruction Scope
SKILL.md directs running the included Python script and editing template files; the runtime instructions and code stay within invoice generation (parsing items, formatting PDFs, saving files). Note: SKILL.md mentions scripts/invoice_template.html and assets/logo.png for customization, but those files are not present in the package — the template customization step is referenced but not shipped.
Install Mechanism
There is no install spec (instruction-only), which minimizes risk. The script requires the external Python package fpdf2 (module 'fpdf'); the code exits with an instruction to 'pip install fpdf2' if missing. That's expected but means the user must install a third-party package (no automatic installer provided).
Credentials
The skill requests no environment variables or credentials. It writes a small counter file to ~/.invoices and outputs PDFs into the current working directory (or a specified output). Those accesses are proportional to maintaining invoice numbering and saving output. No access to unrelated config or secrets is present.
Persistence & Privilege
The skill does not request elevated privileges or always-on persistence. Its only persistent effect is creating ~/.invoices/counter.json and writing PDF files in the working directory. It does not modify other skills, system settings, or network configuration.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install eternal-invoice-generator - After installation, invoke the skill by name or use
/eternal-invoice-generator - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Generate professional PDF invoices from CLI. Multi-currency, tax, discounts, payment reminders.
Metadata
Frequently Asked Questions
What is Eternal Invoice Generator?
Generate professional PDF invoices, quotes, reminders, and recurring bills with customizable items, taxes, discounts, and payment details from the command line. It is an AI Agent Skill for Claude Code / OpenClaw, with 96 downloads so far.
How do I install Eternal Invoice Generator?
Run "/install eternal-invoice-generator" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Eternal Invoice Generator free?
Yes, Eternal Invoice Generator is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Eternal Invoice Generator support?
Eternal Invoice Generator is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Eternal Invoice Generator?
It is built and maintained by Eternal0404 (@eternal0404); the current version is v1.0.0.
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