LanternOpsField Guide · Office AIManaged AI Teams
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§ 0AI in your Office apps

The AI in your Office apps, wired to the systems your firm runs.

Everyone has AI in Excel now. What they don’t have is your file shares, your document system, your case management, and your way of working. We put a governed assistant inside the apps your people already open, and we connect it to the systems your firm actually runs. Outlook on your file shares. Excel on your document system. Whatever you use, wired in and kept in line.

01
§ 1Inside the apps

An assistant in every app your people already open.

The same governed assistant, surfaced where the work actually happens: the inbox, the spreadsheet, the document, the deck.

Outlook

Email that knows the matter

Draft replies grounded in the client’s file, file a message to the right matter, and pull the one document the thread is actually about, without leaving the inbox.

Excel

Spreadsheets on your real data

Build and explain formulas, reconcile, and populate ranges from the system of record itself, not a stale export someone pasted in last week.

Word

Drafts from your templates

First-pass letters, memos, and reports built from your own templates and your own data, with the clauses pulled from your precedent library, not the open internet.

PowerPoint

Decks from your numbers

Turn a Word brief or a live figure into a first-draft deck on your brand template, ready for a person to finish.

02
§ 2Customized to your stack

The add-in is generic. What we wire it to isn’t.

Off-the-shelf AI in Office answers from the public model and whatever sits in your mailbox. That’s the demo. The version worth having is connected to the systems where your work actually lives, so it answers from your matters, your documents, and your data. We don’t ship a fixed list of integrations and ask you to adapt. We build the connection to what your firm already runs, because the platform is made for exactly that.

Fig. 1 — What we wire it toPlate I
  • Your file shares
  • Your DMS (iManage, NetDocuments)
  • Practice & case management
  • Microsoft 365 / Graph
  • Your line-of-business database
  • Any API or MCP server
“Outlook for any file system” is not a slogan. It’s the point. The same assistant can read your DMS for one firm and a folder tree on a Windows server for the next, under the same rules.
03
§ 3Governed before a single cell leaves

Wired to your systems, and kept on a leash.

Connecting AI to the systems that hold your client work is a governance decision, not an integration. The wiring and the guardrails ship together.

Fig. 2 — The Governance Card · Office AssistantSign-in: your Microsoft tenant
Permissions
  • Surface what the person could already openAllow
  • Draft replies, formulas, memos, decksDraft
  • Send client-facing work · write to a fileGate · human
  • Leak a secret to the modelNever
The wiring and the guardrails ship together. The assistant prepares; your people decide. Every action is deployed and controlled centrally through your own Microsoft sign-in.

It can only surface what the person could already open

The assistant inherits the permissions you already maintain. When someone asks a question, they see the documents they could open themselves, and nothing they couldn’t. No second set of rules, no hoping the model behaves.

Secrets are redacted before anything leaves

Every prompt and every cell passes a checkpoint that scrubs the things that should never go to a model, and it fails closed: if it can’t scan, it blocks.

Sends and writes wait for a person

Anything client-facing or anything that changes a file shows exactly what it’s about to do and waits for a yes. The assistant prepares; your people decide.

Every action is on the record

Who used it, what it touched, what it sent. Deployed and controlled centrally through your own Microsoft sign-in, governed by your policy, and auditable on demand.

§ 4The first step

Start with one workflow.

We map the one place your people burn the most time moving information between Office and your other systems, wire the assistant to it, and prove it on your own work in a three-week pilot. No tools installed in the meantime, no data moved.