Leapfin Blog

The Last Mile of Automation: Luca Now Validates Itself

Written by Erik Yao, Co-Founder & CTO at Leapfin | Jan 27, 2026 4:50:48 PM

The most dangerous number in finance isn't the one that’s red. It’s the one that looks green, but isn't.

For the last decade, the promise of automation has come with a hidden tax: Maintenance.

You build a rule. The business changes (new pricing, new bundle, new tax law). The rule breaks. But often, it breaks silently. You don't find out until month-end close - or worse, until the audit.

We realized that to truly automate finance, we couldn't just build an agent that does the work. We had to build an agent that checks its own work.

The Evolution of Luca

If you’ve been following our roadmap, you’ve seen the progression:

  1. Agentic Reporting: We taught Luca to query and build reports.
  2. Agentic Workflows: We taught Luca to build complex accounting logic from plain English.
  3. Auto-Documentation: We taught Luca to write its own SOX-compliant documentation so you don't have to.

But there was one gap left. When an accountant finishes work, they always validate it.

Today, Luca does the same.


Introducing Luca Transaction Validation

As of this release, Luca isn't just a builder. It is a tester.

When you ask Luca to design a new workflow - say, for a complex usage-based billing model - it doesn't just write the logic. It now performs three critical new steps:

1. Luca Simulates Reality (The Stress Test) Before a single dollar of real volume hits your books, Luca can test transactions to validate the workflow.

2. Luca Identifies the "Invisible" Breaks Most automation fails silently. Luca watches the data flow and flags issues that human eyes would miss in a spreadsheet. It identifies where the logic could create a reconciliation break - where the debits don't equal the credits, or where the data transformation fails.

3. Luca Suggests the Solution (The Self-Correction) This is the breakthrough. Luca doesn't just throw an error code at you. Luca will suggest the specific change to the automation workflow to resolve the issue.

“I found a $0.03 variance due to rounding discrepancies in the multi-currency conversion. I recommend updating the logic to round at the line-item level rather than the invoice level. Shall I apply this change?”

The Holy Grail: Full Reconciliation

Why are we doing this?

Because the ultimate goal of the finance/accounting function isn't "speed." It’s Reconciliation.

Reconciliation is the moment of truth. It’s when you know for a fact that the money you think you have is the money you actually have.

Traditionally, reconciliation is the last thing that happens. It’s the cleanup crew.

With Luca’s new testing capabilities, we are moving reconciliation to the front. By identifying and fixing issues at the workflow level, we are moving toward a world of Zero-Touch Reconciliation.

The End of "Maintenance Mode"

Finance teams have spent too long being the janitors of data. You spend your days fixing broken links, investigating variances, and patching old rules.

We are building a world where the software maintains itself.

  • It builds the process.
  • It documents the process.
  • And now, it tests and resolves the process.

Watch the video below to see Luca find a break, identify the root cause, and redesigned Workflows to fix it, all in under 5 minutes!

Watch the Demo:

 

The era of finding errors after the close is over. The era of preventing them has begun.