An Assistant That Has Read Your File Is a Different Thing Entirely

An assistant that has read your file is a different thing entirely

There are two kinds of AI assistant a law firm can have, and they are so different that using the same word for both causes most of the confusion in this market.

The first has read the internet. Ask it about a limitation period and it will tell you something plausible, drawn from everywhere and nowhere. The second has read your matter — the pleadings, the correspondence, the attendance notes — and can only answer from that. It knows nothing about law in general and everything about this case.

For practice, the second is far more useful and far less dangerous, and the reason is the same in both instances: it can show you where the answer came from.

The questions a file-grounded assistant can actually answer

These are the questions that consume a fee earner’s day and have answers already sitting in the matter:

• What did we agree about the extension?
• When did the client last confirm instructions on this point?
• Which version of the schedule went out on the fourteenth?
• Has anyone replied to the letter of 3 March?
• What is outstanding on this matter before I can bill it?

Each currently costs somewhere between four and twenty minutes of searching, and each is answerable in seconds by something that has indexed the file — provided the answer arrives with the document attached.

The last question deserves particular attention, because it is the one nobody asks until month end, by which time the answer has become an archaeology exercise.

Why provenance is the whole design

An assistant that says “the extension was agreed to 12 April” has given you a claim.

An assistant that says “the extension was agreed to 12 April — letter from Hargreaves & Co, 28 March, second paragraph” has given you something you can act on, because confirming it takes one click.

That difference decides whether the tool saves time. Without provenance you must verify from scratch, and verifying from scratch is the work you were trying to avoid. With it, the tool has moved you from searching to reading.

It also decides whether the tool is safe. A model answering from general knowledge will confidently supply a plausible date. One constrained to your documents can only tell you what is in them — and, properly built, will say when the answer is not there.

That last behaviour is the one to test during any evaluation. Ask a question the file cannot answer. A system that invents something has told you what it will do on the question that matters.

What it should not do

Answer questions of law from the file. Your matter contains what happened, not what the law is. An assistant grounded in the file should decline to be a substitute for research, and should not be asked to be.

Write to the record unsupervised. Proposing a time entry is useful; creating one nobody reads is a representation to a client that no human checked.

Draft client communications that go out unreviewed. Same rule as everywhere else.

Cross matters without permission. An assistant that can see every file is a confidentiality and information-barrier problem. Access should follow the same rules as the documents themselves.

The prerequisite nobody mentions

A file-grounded assistant is only as good as the file. If half the correspondence lives in individual inboxes and the attendance notes were never written up, the assistant will confidently tell you what the incomplete record says.

This is the unglamorous part: the value of the assistant is a direct function of whether the firm actually files things in one place. Firms with a disciplined system of record get a great deal from this technology. Firms without one get faster access to a partial picture, which is worse than knowing the picture is partial.

So the sequence is: system of record first, assistant second. In that order the assistant compounds; in the other order it obscures.

How to evaluate one

1. Ask it something the file answers. Check that the citation is right, not just that the answer is.
2. Ask it something the file does not answer. See whether it says so.
3. Ask it something adjacent — a question the file answers partially. This is where a weak system fills the gap with invention.
4. Check what it can see. Which matters, which documents, under whose permissions.
5. Check what it writes. Whether anything reaches the record without a human accepting it.

Where Lawnova’s assistant sits

Lawnova’s assistant works from the matter: the documents, notes, tasks and correspondence held in case management, under the same role-based permissions as the file itself. Answers come with the document they were drawn from, and where the file does not contain the answer, that is what it says.

It is a deliberately narrow product. It will not tell you the law. It will tell you, quickly and with a reference, what is in your own file — which is the question being asked twenty times a day in every practice.

For the wider argument about where firm time actually goes, see where the hours actually leak.