Check a contract with Claude before you sign

A lease, a freelance agreement or a gym contract can hide a fee or a lock-in on page nine. The prompt below has Claude flag every clause worth questioning and write the questions to send back.

How-to

On 28 October Anthropic added a gallery of ready-made legal tools to Claude, built for lawyers. You can run a plain-language first check on your own contract in any Claude chat with the prompt below, on any plan, Free included.

The prompt: read my contract clause by clause

PromptRead my contract clause by clause
You are helping me read a contract I have been asked to sign. I am not a lawyer. Read it the way a careful, experienced friend who reviews contracts for a living would: slowly, clause by clause, on my side. If you miss a fee, a lock-in or a promise I am making, it could cost me money or tie me in for years, so accuracy matters more than speed. You are not my lawyer and you do not know the law where I live for certain, so never tell me to sign or not to sign, and never state what my local law says as fact.

ABOUT THE CONTRACT (I fill this in once; any line can say "not stated")
- What it is: [e.g. "12-month apartment lease", "freelance design contract with an agency", "gym membership", "job offer with a non-compete", "car finance agreement"]
- My side: [e.g. "tenant", "freelancer", "customer", "new employee"]
- The other side: [e.g. "a landlord", "a marketing agency", "a national gym chain"]
- Where I live: [country, plus state or region if it has its own rules, e.g. "Texas, USA", "Ontario, Canada", "New South Wales, Australia"]
- The money: [e.g. "I pay 1,450 a month plus a deposit", "I get paid 4,000 per project", "not sure"]
- Start date and length: [e.g. "starts 1 December, 12 months", "rolling monthly"]
- My deal-breakers: [e.g. "no automatic renewal", "I must be able to leave with one month's notice", "I keep the right to show the work in my portfolio", "no personal guarantee"]
- What I was told out loud or in the advert: [e.g. "the agent said pets are fine", "the recruiter said two days a week from home", "the salesperson said I can cancel any time"]
- When I have to sign by: [e.g. "Friday", "not stated"]
- What I am pasting: [e.g. "all 14 pages plus the price schedule", "the old version and the new version", "not sure if it is complete"]

WORK IN STAGES

Stage 1. Check what you have. Tell me how many pages, sections or clauses you can see. List every document the contract refers to that I have not pasted (for example "the Terms and Conditions on our website", "Schedule B", "the house rules") as [NEED: name of document], because clauses in those documents can bind me too. If any part is cut off, unreadable or looks like a scan you cannot read, say exactly where. If "Where I live" says "not stated", carry on, but mark every point that depends on local law [NEED: where you live].

Stage 2. If I pasted two versions, compare them first. List every change clause by clause: added, removed or reworded, with the old wording and the new wording quoted, and say in one line whether each change helps me, helps the other side, or makes no practical difference. Then run Stages 3 to 6 on the newest version only.

Stage 3. The plain summary. In no more than eight short lines: who the parties are, what each side gets, what I pay or get paid and when, how long it lasts, and how it ends.

Stage 4. Go through the contract in these jobs. For every point, give: the clause number (or page and heading if there are no numbers, and never invent a number), the exact words in quotation marks, what it means in plain words, why it matters to me, and a rating of "fine", "ask about it" or "serious".
a) Money: every fee, deposit, charge, penalty and late fee; whether the price can go up, how, and with what notice; who pays which costs. If a total cost over the term can be worked out from the text and my set-up, show the working. If it cannot, write "cannot work out from the text".
b) Renewal and getting out: minimum term, automatic renewal, notice period, cancellation or early-exit fees, and what happens to money I have already paid. If it renews automatically and I gave a start date, work out the last date I could give notice and show the working. If the start date is "not stated", write [NEED: start date].
c) What I am promising: my duties, exclusivity, non-compete or non-solicit terms, personal guarantees, insurance I must hold, and, for work contracts, when I get paid and what counts as finished or accepted work.
d) When things go wrong: who pays if something breaks or a claim is made, indemnities, caps on what they owe me, rights I give up, and how disputes are settled (arbitration, which country's law, which court).
e) Ownership and data: who owns what I make or provide, what they may do with my personal details, photos or work, and for how long.
f) Changes: whether they can change the terms without my agreement, and how they must tell me.
g) My lists: for each deal-breaker, say "met", "broken" (quote the clause) or "not addressed in the contract". For each thing I was told out loud or in the advert, say "in writing" (quote it), "contradicted" (quote it) or "not in the contract".

Stage 5. Questions to send. For every "ask about it" or "serious" point, write one polite, plain question I can send to the other side in writing, and where it helps, a suggested change of wording I could ask for, labelled "suggested wording, check before using". Put the three most important questions first.

Stage 6. Where a person should look. List every point whose answer depends on the law where I live (for example whether a non-compete, a penalty fee or a deposit rule can be enforced) and say "this depends on the law where you live: check with a lawyer, a legal aid service or a consumer advice body there". Then tell me whether any of these is present: a large sum for my situation, a lock-in longer than a year, a personal guarantee, giving up my right to go to court, or a deal-breaker that is broken. If any is present, say plainly that a paid professional review is worth considering before I sign, and name which of these triggered it.

RULES FOR EVERY ANSWER
- Quote word for word. Never put a paraphrase inside quotation marks.
- If something is not in the text, say "not in the contract". Never fill a gap with what contracts like this usually say.
- Explain any legal term in plain words in brackets the first time you use it.
- Never call a clause "standard", "normal" or "safe" as a reason for me to accept it.
- If my set-up and the contract disagree (for example a different rent or start date), point it out at the top.

SELF-CHECK BEFORE YOU FINISH
- Every quotation appears word for word in what I pasted.
- Every deal-breaker and every out-loud promise has a verdict.
- Every [NEED] item is listed together at the end.
- You have not told me to sign or not to sign.
- Tell me how many points you rated "serious" and how many "ask about it", and name any part of the contract you could not read.

How to run it

  1. Check your privacy setting first. A contract holds your name, address and money details, so decide whether Claude may train on this chat: on Free, Pro and Max the switch is under Settings > Privacy > Help improve our AI models, per Anthropic’s privacy help page. Blank out bank and ID numbers too, since the check never needs them.
  2. Check you may share it. If the contract has a confidentiality clause, or is a work contract with a client’s or employer’s details in it, check the clause allows you to share it, and swap names and prices for placeholders such as [CLIENT] before you paste.
  3. Get every page. Ask for the full contract plus anything it points to, such as a price schedule or online terms, because a clause in a document you never pasted still binds you.
  4. Fill in the set-up block. Your deal-breakers and what you were told out loud are the two lines that do the most work, since the prompt checks the contract against each one and flags any promise that never made it into writing.
  5. Paste the prompt, then the contract. In the same message, attach the PDF or a photo of each paper page, or paste the text if you need to delete numbers first. Label an old and a new version so the prompt lists every change; if the reply stops part way, type carry on from where you stopped.
  6. Check the quotes against the document. Find two or three flagged clauses in the original yourself. The prompt quotes word for word so you can do this in seconds, and a quote that does not match tells you to read that section with your own eyes.
  7. Send the questions in writing. Email the top questions from Stage 5 to the other side, so their answer sits in writing next to the contract you sign.
  8. Decide whether a person needs to look. Stage 6 names the points that depend on the law where you live and the triggers that make a paid review worth it, such as a personal guarantee or a lock-in over a year.

What one flagged clause looks like

A made-up clause, for a contract that starts 1 December and runs 12 months, with the deal-breaker “no automatic renewal”.

  • Clause 14.2. “This Agreement shall renew automatically for successive 12-month terms unless either party gives written notice no less than 60 days before the end of the then-current term.”
  • Plain words. It rolls over for another year unless you say no in writing in time.
  • Why it matters. Miss the date and you owe another 12 months.
  • Rating. serious
  • Working. The term ends 30 November; 60 days before that is 1 October, so 1 October is the last day to give notice.
  • Deal-breaker “no automatic renewal”. broken (“This Agreement shall renew automatically for successive 12-month terms…”, clause 14.2)
  • Question to send. “Could clause 14.2 be changed so the agreement ends after 12 months unless we both agree in writing to renew?”
  • Suggested wording, check before using. “This Agreement ends after 12 months unless both parties agree in writing to renew it.”

The new legal gallery

  • What it is. A set of ready-made interactive tools in Claude, each opening with an example, at claude.ai/artifacts?templates=legal. Artifacts need Code execution and file creation (Create and edit files in the newer layout) turned on in Settings > Capabilities, per the artifacts help page.
  • The two contract tools. Playbook deviation board flags clauses that differ from a company’s standard terms, and Tabular review builds a table of the terms you ask about across a set of contracts, linked to the exact wording.
  • When it helps you. Tabular review suits lining up a set of contracts, such as several job offers; for one contract or two versions, the prompt above compares them in a plain chat.

The honest bit

Claude can tell you what a clause says and why it matters to you, but whether that clause holds up depends on the law where you live, and Anthropic pitches its own gallery as a first pass that a lawyer then judges.

This guide and Claude’s answers are not legal advice. Use them to understand the contract and decide what to ask, then check anything serious with a lawyer, a legal aid service or a consumer advice body where you live.

Your check: pick the clause that would hurt most if it went wrong, read it in the original, and see whether you could explain it to a friend in one sentence.

The facts here come from Anthropic’s 28 October announcement, its artifacts help page and its privacy settings page, read 29 October 2026.

Do it now

Open the next contract waiting in your inbox, fill in the set-up, and paste the prompt and the contract into Claude. Read the top three questions first and send them today.

A few quick questions

Is the Claude legal gallery free?

Anthropic’s announcement does not say which plans get the legal gallery. Its artifacts help page says artifacts work on every plan including Free, and connecting other apps inside an artifact needs Pro, Max, Team or Enterprise.

Does the prompt work in ChatGPT or Gemini?

Yes. Nothing in it is specific to Claude, so check that app’s privacy setting first, then paste it into any chat assistant that can read your contract as text or a PDF, and run the same quote check on its answer.