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norman-finance

Norman Finance MCP Server

Official

create_invoice

Generate and manage invoices by entering client and item details, setting payment terms, and customizing reminders. Automatically send invoices via email and create payment QR codes. Supports multiple currencies and VAT configurations.

Instructions

Create a new invoice. Ask for additional information if needed, for example:
- If the client is not found, ask for the client details and create a new client if necessary.
- If pyament reminder should be sent, ask for the reminder settings.
- If the invoice type is GOODS, ask for the delivery date.
- If the invoice type is SERVICES, ask for the service start and end dates.
- If the invoice should be sent to the client, ask for the email data.

Args:
    client_id: ID of the client for the invoice
    items: List of invoice items, each containing name, quantity, rate, vatRate and total. 
           Example: [{"name": "Software Development", "quantity": 3, "rate": 30000, "vatRate": 19, "total": 1071}] // VAT rates might be 0, 7, 19. By default it's 19. Rate and total are in cents.
    invoice_number: Optional invoice number (will be auto-generated if not provided)
    issued: Issue date in YYYY-MM-DD format
    due_to: Due date in YYYY-MM-DD format
    currency: Invoice currency (EUR, USD), by default it's EUR
    payment_terms: Payment terms text
    notes: Additional notes
    language: Invoice language (en, de)
    invoice_type: Type of invoice (SERVICES, GOODS)
    is_vat_included: Whether prices include VAT
    bank_name: Name of the bank (gets from company details if exists)
    iban: IBAN for payments (gets from company details if exists)
    bic: BIC/SWIFT code (gets from company details if exists)
    create_qr: Whether to create payment QR code (only if BIC and IBAN provided)
    color_schema: Invoice style color (hex code)
    font: Invoice font (e.g. "Plus Jakarta Sans", "Inter")
    is_to_send: Whether to send invoice automatically to client
    mailing_data: Email data if is_to_send is True. Example: {
        "emailSubject": "Invoice No.{invoice_number} for {client_name}",
        "emailBody": "Dear {client_name},...",
        "customClientEmail": "client@example.com" // email to send the invoice to, if not provided, it will be sent to the client email address
    }
    settings_on_overdue: Configuration for overdue notifications. Example: {
        "isToAutosendNotification": true, // whether to send notification automatically
        "customEmailSubject": "Reminder: Invoice {invoice_number} is overdue", // custom email subject
        "customEmailBody": "Dear {client_name},...", // custom email body
        "notifyAfterDays": [1, 3], // days to notify after the due date
        "notifyInParticularDays": [] // days to notify in particular dates [2025-05-23", "2025-05-24"]
    }
    service_start_date: Service period start date (YYYY-MM-DD) by default it's today, should be provided if invoice_type is SERVICES
    service_end_date: Service period end date (YYYY-MM-DD) by default it's one month from today, should be provided if invoice_type is SERVICES
    delivery_date: Delivery date for goods (YYYY-MM-DD) by default it's today, should be provided if invoice_type is GOODS

Returns:
    Information about the created invoice and always include the generated invoice pdf url from reportUrl field

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bank_nameNo
bicNo
client_idYes
color_schemaNo#FFFFFF
create_qrNo
currencyNoEUR
delivery_dateNo
due_toNo
fontNoPlus Jakarta Sans
ibanNo
invoice_numberNo
invoice_typeNoSERVICES
is_to_sendNo
is_vat_includedNo
issuedNo
itemsYes
languageNoen
mailing_dataNo
notesNo
payment_termsNo
service_end_dateNo
service_start_dateNo
settings_on_overdueNo
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses some behavioral traits like auto-generation of invoice numbers and default values (e.g., currency, dates), but lacks details on permissions, error handling, rate limits, or what 'create' entails beyond the PDF generation mentioned in returns.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is overly verbose and poorly structured, mixing usage prompts with parameter details in a long block. It could be more front-loaded and concise; for example, the conditional prompts could be summarized, and parameter explanations are exhaustive but not efficiently organized.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a complex tool with 23 parameters, no annotations, and no output schema, the description is largely complete—it explains parameters thoroughly and specifies the return includes a PDF URL. However, it lacks details on behavioral aspects like authentication or error cases, leaving some gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Given 0% schema description coverage and 23 parameters, the description compensates fully by explaining each parameter's purpose, format, defaults, and examples. It adds significant meaning beyond the schema's basic titles, such as VAT rate options, date formats, and conditional dependencies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool creates a new invoice with the verb 'Create' and resource 'invoice'. It distinguishes from siblings like 'send_invoice' or 'create_recurring_invoice' by focusing on initial creation, though it doesn't explicitly contrast them.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides implied usage through conditional prompts (e.g., 'If the client is not found...'), suggesting when to gather additional data. However, it lacks explicit guidance on when to use this tool versus alternatives like 'create_recurring_invoice' or 'send_invoice', and doesn't mention prerequisites.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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