Invoice and get paid

Skill protosphinx/sphinxstack/skills/invoice-and-get-paid

Invoice for finished work and chase it politely. What goes on the invoice, free tools, payment methods that fit their age. Use when they say "how do I invoice", "I finished a job, now what", or "they haven't paid me".From its SKILL.md

Install

npx -y skills add protosphinx/sphinxstack --skill invoice-and-get-paid

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

3.3 KB, 732 tokens by cl100k_base, as published. Nobody here has run it

invoice-and-get-paid

Help someone invoice for real work they have already done, probably for the first time. The job ends when an invoice is sent to a real client. You draft with them; they send it and they receive the money — you never handle payments or log into anything financial.

What goes on the invoice

One page. It needs:

Their name and contact (email or phone — whichever the client has)
The client's name
An invoice number (start at 001) and today's date
A line per piece of work: plain description, quantity or hours if relevant, price. Numbers that match what was agreed beforehand — no surprise line items.
The total, clearly
How to pay, spelled out exactly (see below)
A due date: "due on receipt" or "due within 14 days"

That is all. No logo required, no tax fields unless they were told to add them. Tax and invoice rules vary by jurisdiction, so use the current official tax or small-business source for their location and, for a minor, involve a parent or guardian. Do not provide tax or legal advice.

Make it

Fastest honest options: a Google Doc or Word template (search "invoice" in the template gallery), or build a clean one-page HTML invoice with them that prints to PDF — same technique as a resume. Free invoice generators exist too (Wave, Zoho's free tool, and others); if they want one, have them compare on the official sites rather than taking your word for a specific pick. The output is a PDF named like invoice-001-clientname.pdf.

Getting paid

The workable methods at their age, roughly in order of simplicity: cash on delivery, a check, or a peer-to-peer app tied to a bank account (Venmo, PayPal, Zelle and similar — availability and age rules vary; under 18 usually needs a parent on the account, so have them check the app's own terms and ask their bank). Whatever they pick, the invoice states it exactly: "Venmo @handle" or "check payable to Full Name". If they have no way to receive money yet, that conversation happens with a parent and their bank, not with you.

Send it, then follow up

Send the PDF with two sentences: thanks for the work, invoice attached, due date restated. Then put the due date somewhere they will see it.

If unpaid at the due date, the follow-up ladder — each step drafted with them, sent by them:

After the due date: friendly nudge, one line, invoice re-attached. Most late payments are forgetfulness and this fixes them.
A week later: still polite, but direct — "Following up on invoice 001 for $N, due DATE. Can you let me know when to expect payment?"
If it remains unpaid, involve a parent or guardian for a minor and check the written agreement plus current official local guidance before any escalation. Do not threaten legal action, fees, or public exposure that the agreement and local rules do not support.

Done

A numbered invoice PDF matches the written scope and price
It was sent by the person, with the due date and follow-up tracked
The payment route complies with current provider age rules; no financial credentials or payment were handled by the agent

What ships with it: 1 file

222 B alongside SKILL.md

agents/

openai.yaml222 B

Gives 0 of the 12 instructions most finance skills give in 732 tokens

Counted across 469 of the 469 authors here whose files we hold, read 2026-08-07

Extract date vendor amount and descriptionin 15 of 469, across 3 files
Scan folder for invoice filesin 14 of 469, across 2 files
Rename files to standard formatin 14 of 469, across 2 files
Show organization plan before movingin 14 of 469, across 2 files
Generate summary CSVin 14 of 469, across 2 files
Organize files by categoryin 13 of 469, across 1 file
Preserve original filesin 13 of 469, across 1 file
Flag files missing critical infoin 13 of 469, across 1 file
Produce the requested output filein 9 of 469, across 4 files
Build best, base, and worst case scenariosin 9 of 469, across 5 files
Implement backoff if rate limit errors occurin 8 of 469, across 3 files
Determine the weighted average cost of capitalin 8 of 469, across 4 files

Said here and by no other author read

produce a numbered pdf invoice
include names contact invoice number date and total
add one line per task with agreed prices
state exact payment method and due date
use official sources for tax or legal rules
involve a parent for a minor

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.