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davepoon/buildwithclaude/plugins/all-skills/skills/szamlazz-invoicing/SKILL.md

szamlazz-invoicing

Issue, cancel, and fetch Hungarian invoices via the szamlazz.hu Agent API. Handles VAT calculation, NAV taxpayer lookup, partner caching, and PDF generation. Use when the user mentions számla, számlázás, invoice, sztornó, díjbekérő, proforma, or wants to bill a customer.

Source repository stars: 3,359
Declared platforms: 0
Static risk flags: 0
Last source update: 2026-08-24
Source checked: 2026-08-26

Decision Compatibility Install Workflow Permissions Evidence Source FAQ

Decision brief

What it does: where it fits

Issue, cancel (storno), download, and manage Hungarian invoices directly from Claude Code via the szamlazz.hu Agent API.

Best for

User wants to issue a Hungarian invoice (számla)
User wants to create a proforma / díjbekérő
User wants to cancel (storno) an existing invoice

Not for

Tasks that require unconfirmed production actions or broad system permissions.
Environments where the pinned source and install steps cannot be inspected.

Compatibility matrix

Platform support, with evidence labels

Platform	Status	Evidence	What to check
Codex	Not declared	No explicit evidence	Portability before use
Claude Code	Not declared	No explicit evidence	Portability before use
Cursor	Not declared	No explicit evidence	Portability before use
Gemini CLI	Not declared	No explicit evidence	Portability before use

Open the compatibility checker

Installation

Inspect first. Install second.

The source command is displayed only when detected. A safe inspection prompt is always available so your agent can explain every action before execution.

Source-detected install commandSource

npx skills add https://github.com/davepoon/buildwithclaude --skill "plugins/all-skills/skills/szamlazz-invoicing"

Safe inspection promptEditorial

Inspect the Agent Skill "szamlazz-invoicing" from https://github.com/davepoon/buildwithclaude/blob/ebd20fe1d82fa74e9a2f94abfeff88090f6c758c/plugins/all-skills/skills/szamlazz-invoicing/SKILL.md at commit ebd20fe1d82fa74e9a2f94abfeff88090f6c758c. List every install step, command, network request, credential, file read/write, external action, and rollback step. Explain whether it fits my task. Do not install or execute anything until I approve.

Workflow

What the source asks the agent to do

01
How to Use
Review the “How to Use” section in the pinned source before continuing.
Review and apply the “How to Use” source section.
02
When to Use This Skill
User wants to issue a Hungarian invoice (számla)
User wants to issue a Hungarian invoice (számla)User wants to create a proforma / díjbekérőUser wants to cancel (storno) an existing invoice
03
Prerequisites
Plugin: socialpro-szamlazz installed
Plugin: socialpro-szamlazz installedPython 3.9+ with PyYAML (pip install pyyaml)szamlazz.hu account with an Agent API key (generate at szamlazz.hu → Beállítások → Számla Agent kulcsok)
04
Installation
Review the “Installation” section in the pinned source before continuing.
Review and apply the “Installation” source section.
05
What This Skill Does
1. First-run setup — detects missing config, asks 3 questions (API key, seller tax number with NAV auto-lookup, bank account with auto-detection), writes seller.yaml 2. Invoice creation — parses natural language, resolves customer from partner cache or NAV, calculates net/VAT/gr…
First-run setup — detects missing config, asks 3 questions (API key, seller tax number with NAV auto-lookup, bank account with auto-detection), writes seller.yamlInvoice creation — parses natural language, resolves customer from partner cache or NAV, calculates net/VAT/gross with Decimal precision, shows mandatory confirmation, fires XML to API, saves PDFStorno — cancels an existing invoice by number

Permission review

Static risk signals and limitations

No configured static risk pattern was detected

This is not proof of safety. Runtime behavior, indirect dependencies, and hidden external systems are outside the static scan.

Evidence record

Why each signal appears

EvidenceSourceComputedTestedEditorial

Signal	Value	Evidence type	Meaning
Quality score	90/100	Computed	Documentation, specificity, maintenance, and trust rules
Repository stars	3,359	Source	Repository attention, not individual Skill quality
Compatibility	0 platforms	Source	Declared in the catalog source record
Usage guide	automated source guide	Editorial	Generated or reviewed according to the visible evidence level

Pinned source

Provenance and original SKILL.md

Repository: davepoon/buildwithclaude
Skill path: plugins/all-skills/skills/szamlazz-invoicing/SKILL.md
Commit: ebd20fe1d82fa74e9a2f94abfeff88090f6c758c
License: MIT
Collected: 2026-08-26
Default branch: main

View the original SKILL.md

Szamlazz.hu Hungarian Invoicing

Issue, cancel (storno), download, and manage Hungarian invoices directly from Claude Code via the szamlazz.hu Agent API.

Built by SocialPro — a Hungarian AI automation and digital marketing agency specializing in custom AI integrations for SMEs.

When to Use This Skill

User wants to issue a Hungarian invoice (számla)
User wants to create a proforma / díjbekérő
User wants to cancel (storno) an existing invoice
User wants to download an invoice PDF
User wants to look up a Hungarian company by tax number (NAV)
User mentions szamlazz.hu, számlázás, or billing in a Hungarian context

Prerequisites

Plugin: socialpro-szamlazz installed
Python 3.9+ with PyYAML (pip install pyyaml)
szamlazz.hu account with an Agent API key (generate at szamlazz.hu → Beállítások → Számla Agent kulcsok)

Installation

/plugin marketplace add socialproKGCMG/socialpro-plugins
/plugin install szamlazz@socialpro-plugins

What This Skill Does

First-run setup — detects missing config, asks 3 questions (API key, seller tax number with NAV auto-lookup, bank account with auto-detection), writes seller.yaml
Invoice creation — parses natural language, resolves customer from partner cache or NAV, calculates net/VAT/gross with Decimal precision, shows mandatory confirmation, fires XML to API, saves PDF
Storno — cancels an existing invoice by number
Proforma — creates a díjbekérő (proforma invoice)
PDF download — re-downloads an invoice PDF by number
NAV lookup — queries the National Tax Authority for company data by tax number

How to Use

Issue an Invoice

/szamlazz állíts ki egy számlát Példa Kft.-nek 150 000 Ft-ról webfejlesztésről

Cancel (Storno)

/szamlazz sztornózd a SOC-2026-0042 számlát

Proforma / Díjbekérő

/szamlazz díjbekérő Acme Ltd-nek 500 EUR-ról konzultációért

Download PDF

/szamlazz töltsd le a SOC-2026-0042 PDF-jét

NAV Taxpayer Lookup

/szamlazz ki ez a cég: 12345678-2-42

Key Features

Feature	Details
Invoice types	Regular, proforma (díjbekérő), storno
VAT rates	27% / 18% / 5% / 0% / AAM + KATA support
NAV lookup	Auto-fetches company name and address from tax number
Partner cache	Customers remembered by tax ID in local `partners.yaml`
Cross-platform	macOS, Linux, Windows
Rounding	`Decimal` with `ROUND_HALF_UP` to 2 decimals
Error handling	7 most common szamlazz.hu errors translated with recovery steps
Security	API key in OS credential store, never echoed to stdout

Error Codes

Code	Meaning	Fix
3	Auth failed	Regenerate Agent key at szamlazz.hu
54, 55	e-Számla cert	Retry with `eszamla=false`
57, 259-264	Calculation mismatch	Recalculate with Decimal rounding
136	Unpaid balance	Pay szamlazz.hu subscription

Tips

The plugin activates on both Hungarian and English trigger words
Invoices are legal documents — the skill always shows a confirmation before issuing
Partner cache is local-only and never committed to git
For foreign currency invoices, set penznem and the MNB exchange rate is used automatically
Maximum 5 retry attempts per session to prevent infinite loops

What to verify before installation and use

What does the szamlazz-invoicing source document cover?

Issue, cancel (storno), download, and manage Hungarian invoices directly from Claude Code via the szamlazz.hu Agent API.

How do I install szamlazz-invoicing?

The source record exposes this install command: npx skills add https://github.com/davepoon/buildwithclaude --skill "plugins/all-skills/skills/szamlazz-invoicing". Inspect the command and pinned source before running it.

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What it does: where it fits

Best for

Not for

Platform support, with evidence labels

Inspect first. Install second.

What the source asks the agent to do

How to Use

When to Use This Skill

Prerequisites

Installation

What This Skill Does

Static risk signals and limitations

Why each signal appears

Provenance and original SKILL.md

Szamlazz.hu Hungarian Invoicing

When to Use This Skill

Prerequisites

Installation

What This Skill Does

How to Use

Issue an Invoice

Cancel (Storno)

Proforma / Díjbekérő

Download PDF

NAV Taxpayer Lookup

Key Features

Error Codes

Tips

Links

What to verify before installation and use

Compare before choosing

ab-testing

bulk-ingestion

app-store-optimization

migrate-vstest-to-mtp