Don't plug AI straight into your data. Build it a front door.

How we're giving a hospitality group with over 75 pubs, bars and hotels one safe way into their data, used by both their reporting app and Claude, so everyone gets the same answers whichever they pick.

A reporting dashboard showing daily revenue, orders and top products

Our client runs over 75 pubs, bars and hotels. Every site creates numbers all day: covers, bookings, rooms, sales and guest feedback. Their data team has already done the hard part of pulling it all into one place.

We're building what sits on top, and at the centre of it is the Reporting MCP. MCP (Model Context Protocol) is the standard way AI tools such as Claude connect to other systems. Ours is the front door to the data: it knows who's asking and what they're allowed to see.

On top of it sit two things. A reporting app that every site can use on a laptop or phone, and a connection that lets head office ask questions straight from Claude. Both go through the same MCP, so a GM in the app and a finance director in Claude get the same answer, under the same rules.

Why not just connect AI to the data?

You could. Lots of businesses are trying it: point an AI tool at the data and let people ask away. The trouble starts quickly.

  • Two people get two answers. The AI works each answer out from scratch, so one person's "revenue" or "last week" isn't the same as the next person's.

  • "Please don't" isn't security. A pub manager shouldn't see salaries. If the only thing stopping them is an instruction to the AI, that's not good enough.

  • Nobody knows what's going on. There's no record of what's been changed, or what people are asking.

When a GM, a head chef and the finance director all look at the same weekly figures, those figures need to match. Once they don't, people stop trusting the reports.

How it fits together

Diagram: the reporting app and Claude both connect through the Reporting MCP, which asks a semantic layer (Cube) for data; Cube reads from Snowflake, and every change to it is recorded, checked by two people and tested first.

Everything goes through the Reporting MCP. The app's dashboards, its built-in assistant and Claude all ask for data the same way, so they show the same numbers and nobody sees more than they should.

What you get that a DIY setup doesn't

DIY: AI connected straight to the data

What we're building

One way in for every tool

Each app or AI tool gets its own connection and its own rules

The app and Claude both connect through the Reporting MCP, so the rules are set once

The same answer every time

The AI works each sum out from scratch, so answers drift

Each figure, such as covers, sales or guest scores, is defined once and used everywhere

Everyone sees only their own data

Relies on telling the AI, or a separate login for each person

Built into the system, so each person sees what their role allows and nothing more

It speaks your language

The AI has to guess what "takings" or "last week" means

It knows the business terms, the sites and who's asking

Changes are checked

Anyone with access can change things, with no record

Every change is recorded, checked by two people and tested before it goes live

You know what's used

No idea what people ask

Every question is recorded, so the ones asked every week can become a dashboard

The part that holds the definitions and the rules is called a semantic layer. Data teams have used them for years. The difference here is that the AI has to go through it too, like everyone else.

What changes day to day

  • A GM opens the app on their phone, sees how their site's week compares with the rest of the group, and asks how covers compare with last year.

  • The finance director asks Claude the same thing and gets the same number.

  • When the data team change how a figure is worked out, they change it once and it updates everywhere.

  • When another tool needs the data later, it connects to the same MCP and the rules come with it.

We're starting with guest feedback, then adding bookings and sales. The app will run alongside their current reports until the numbers match.

If your team is already asking AI about your numbers, we're happy to talk through how to do it safely. Get in touch with Tom&Co AI.