How Kobi Omenaka’s Claude Code Kit Aims to Cut Invoice Prep to 60 Seconds

In a recent LinkedIn post, Kobi Omenaka discusses a kit he uses to prepare invoices with Claude Code, saying it can reduce the process from an hour to a minute. This article reports on Omenaka’s post and the workflow he describes; it is not written by him.

“It means that i send invoices out in 60 seconds…
…not 60 minutes.”

A draft-first approach to invoice preparation

Omenaka describes a system that brings together prompts, a Claude Code skill, and a script connecting to FreeAgent. In his account, the tool can locate an order email, retrieve a purchase order number and prepare an invoice as a draft. That sequence targets the information-gathering and data-entry work that can make routine billing feel time-consuming.

According to Omenaka, the shared kit includes copy-and-paste prompts, setup instructions for FreeAgent, a sample practice order, and notes for users of Xero and QuickBooks. He says the FreeAgent connection takes about 20 minutes to set up once. The post offers the resources to readers who comment “INVOICE,” rather than presenting a public download link in the post itself.

“Claude Code finds the order email, digs out that elusive purchase order number and makes the invoice as a draft.”

Human review remains part of the process

The workflow Omenaka outlines stops short of sending invoices automatically. He says the system creates a draft, with a person making the final decision before anything reaches a customer. That checkpoint gives the business owner a chance to review the details and control when the invoice is sent.

“Nothing goes to a customer until you type ‘send it’ ✅”

Omenaka also draws a boundary around the tool’s role: he says he is not an accountant and leaves VAT and payment terms to the user. That caveat matters because the post describes automation for finding order details and preparing a draft, while tax treatment and payment conditions still require the business owner’s judgment.

Making automation easier to try

To lower the barrier to experimentation, Omenaka says the kit includes a made-up practice order so users can test the workflow before using it with a real customer. The example offers a way to check how the process handles an order email and invoice draft without immediately involving a live transaction.

In the post, Omenaka frames the resource as a practical answer to administrative work business owners may postpone. His pitch is specific: use Claude Code to gather invoice information and prepare a draft, then retain human control over sending and accounting decisions. He also invites readers to join his Substack for weekly guidance on handing administrative tasks to Claude Code.