Use AI to build your tool.
Not to run it.

Use AI to turn your working routines into local applications, then run them without it. Explainable, predictable tools you can share like a plain file, and your data never leaves your computer.

supplier-formatter.html
supplier_export_july.xlsx
212 rows · stays on your computer
212
read
208
transformed
4
to review
Ambiguous rows flagged one by one, never silently fixed.

100% local

Your data never leaves your computer. Ever.

Built for teams

Share a single HTML file with colleagues, like any other document.

No AI dependency

No credits, no subscriptions, no model to call at runtime.

Explicit rules

Written-down, predictable behavior that's easy to evolve.

Created in minutes

Describe your rules and get a working tool right away.

See the examples

Three real tools, generated exactly the way the skill produces them.

Every demo is itself a self-contained tool: the page you open is the deliverable.
01

Turn an Excel export into a dashboard

Top clients, date ranges, drill-down on click. All of it stays in your browser.

02

Reformat a supplier file for the ERP

Dates, weights and references normalized. Suspect rows are flagged one by one.

03

Shrink a PDF that's too big to email

A photo-heavy deck reworked into a much lighter file. Nothing gets uploaded.

Results worthy of your data.

Your AI already knows how to generate a web page. The skill adds the guardrails you need when the data ends up in accounting, the ERP or a customs declaration.

A tool that misses a case but flags it is acceptable. A tool that silently corrects it is not.
Before / after preview You see the transformed data before you download anything.
A full tally "212 read, 208 transformed, 4 anomalies", each one with its row number.
No silent fixes An ambiguous case is flagged, never guessed at.
The original, untouched The output gets its own name. Your file is never overwritten.
Readable rules A tab spells out in plain language what the tool actually does.

Nothing leaves your computer.

Everything runs in the browser of whoever uses the tool. No data is sent over the internet: not during processing, not afterwards. That's what makes these tools safe to use on client, payroll or financial data.

Turn off the Wi-Fi and see.

The tool keeps working exactly the same, even mid-flight. It's the simplest way to prove that nothing ever goes online.

The file is yours.

It lives on your machines and in your own spaces: network drives, company email, Teams or SharePoint. No subscription keeps it running, and nobody can switch it off remotely.

Standard HTML, nothing else.

An open format browsers have been reading for thirty years. No AI is needed to run it, and any AI can pick it up and evolve it.

It will still run in ten years.

The opposite of the orphaned macro.

A new column? A rule that changed? Send the file back to your AI, describe the change in plain English, and get a numbered new version back. The whole history fits in the file name.

supplier-formatter-v1.0.html
"Add an Incoterm column, and the weight in grams."
supplier-formatter-v1.1.html
"The carrier changed its date format again."
supplier-formatter-v1.2.html current version

Getting started

01

Add the skill to your AI

Download the skill and add it to your AI (Claude, ChatGPT, Mistral or Gemini). You only do it once.

02

Describe what you need

In plain English, as you would to a colleague: the columns, the rules, the edge cases. Already have a tool or a prototype? Hand it over and it gets rebuilt as a self-contained file.

03

Share the file

Email it, drop it in the team space, send it in chat. Your colleagues double-click it. That's it.