agentleFS
Sign inStart free
PawelBednarekPunksPawelBednarekPunks/aidevbird-skills/skills/invoice-processing/SKILL.md

invoice-processing

Skill1 starsChanged 7 days agoMITView on GitHub

Extract invoice data (PDF, image, text) into structured JSON, validate totals, NIP and IBAN, and export to a spreadsheet. Use when processing, checking or booking invoices or receipts.

The file

We split this skill into the rules it gives an agent

2 rules. About 0 are common, 2 are distinctive, and 0 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈2

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Read each document (PDF text, image, email).

    line 8
  2. Distinctive:

    Never pay, send or upload anything.

    line 33

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Invoice Processing

  1. Read each document (PDF text, image, email). One invoice per JSON object, in this shape:
{"number":"FV/12/2026","type":"invoice","issue_date":"2026-11-03","sale_date":"2026-11-03",
 "due_date":"2026-11-17","currency":"PLN",
 "seller":{"name":"Acme sp. z o.o.","tax_id":"1234560007","country":"PL"},
 "buyer":{"name":"Jan Kowalski IT","tax_id":"PL9876540016","country":"PL"},
 "lines":[{"description":"Hosting 11/2026","qty":1,"unit_net":100.00,"net":100.00,"vat_rate":"23","vat":23.00}],
 "totals":{"net":100.00,"vat":23.00,"gross":123.00},
 "iban":"PL61109010140000071219812874","category":null,"notes":[]}
  • type: invoice | correction | proforma | receipt. Corrections keep negative amounts.
  • vat_rate: a number as text, or zw / np / oo (exempt, not taxable, reverse charge).
  • Copy values exactly as printed. Never guess a missing field — set null and add a note.
  • Dates YYYY-MM-DD, amounts as numbers with a dot.
  1. Run python scripts/validate_invoice.py invoices.json (path relative to this skill). It checks line math, totals, gross = net + VAT, Polish NIP checksum, IBAN checksum, due date, and duplicates (same seller + number). Fix extraction mistakes and re-run; issues that are really on the document stay as notes for the user — never "fix" the invoice's numbers.
  2. Category: use the user's list or chart of accounts if given; otherwise propose short categories (e.g. software, hosting, hardware, travel, marketing, services) and mark them as proposals.
  3. Export: one row per invoice (or per line if asked) to CSV or to .xlsx with the xlsx-toolkit skill — columns: number, issue_date, due_date, seller, seller_tax_id, net, vat, gross, currency, category, status, notes.

Hard rules:

  • Foreign-currency invoices: keep the original currency. Convert only if the user asks, and then state the rate, its date and source.
  • Never pay, send or upload anything. Tax treatment is a hint for the accountant, not advice.
  • Report: count processed, count with issues, and each issue in one line.

Download now (ZIP)

Does it work?

Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.

No reviews yet

People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.

  • It worked
  • Partly
  • It didn't
What did you use it for? e.g. Reviewing pull requests in a Rails app

Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.

Your trail

Files you open will collect here, so you can find them again.

Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.

Now do this for your own.

Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

Check your setup, free