Free tool for business owners

Check an AI proposal before you sign it.

An agency promises an AI agent, an automation or more leads. The proposal looks good. But who owns what gets built? How will you know it works before you pay? What happens if you leave?

AI Vendor Check is a free add-on for your own Claude account. Upload the proposal and get a scored review in a few minutes.

What you get.

  • A score out of 100 and a clear callReady to sign, sign after fixes, get more information, or walk away unless it's rewritten.
  • The same 11-part scorecard every timeScope, milestones, acceptance tests, ownership, accounts and security, human approval, privacy, insurance, pricing, exit and support, each with quotes from the proposal and its biggest gap. Compare proposals side by side.
  • Red flagsLike accounts kept in the vendor's name, or AI that talks to customers with no human check.
  • The top 5 gapsWhat to fix before signing.
  • Questions to send the vendorReady to paste into an email.

Built on how we oversee vendors

This is the same checklist Voxelio uses when we oversee AI vendors and agencies for clients. Three rules sit behind it: get it in writing, test it before you pay for it, and make sure you own it.

Honest about its limits

It reviews only what's in the documents you give it. It won't invent numbers, can't check the vendor's references, and never contacts anyone. You make the decision.

Private by design

It runs inside your own Claude account. The skill is plain written instructions (no code, nothing sent to us or anyone else), so you can read every line before you install it.

How to install (about 2 minutes).

  1. Go to claude.ai and sign in. Skills work on Free, Pro, Max, Team and Enterprise plans.
  2. Open Settings → Capabilities and make sure Code execution and file creation is turned on. Menu names may differ slightly on your plan or app version.
  3. Go to Customize → Skills (on older versions: Settings → Capabilities → Skills).
  4. Click + → Upload a skill and choose ai-vendor-check.zip. Don't unzip it first.
  5. Make sure AI Vendor Check is switched on in your skills list.

Use it

Start a new chat, upload the proposal (PDF, Word or a pasted copy) and ask something like “Check this AI vendor proposal before we sign.” Claude picks the skill up on its own; if it doesn't, say “use the AI Vendor Check skill”. Upload every document the vendor sent (terms, pricing sheet) for a fair score.

A checklist review, not legal advice. Have your lawyer review ownership, data, liability and insurance terms before you sign.

FAQ

Questions, answered.

Is it really free?

Yes. Download it, no sign-up.

Do I need a paid Claude plan?

No. Skills work on Free, Pro, Max, Team and Enterprise plans.

Does my data go to Voxelio?

No. It runs inside your own Claude account; nothing you enter is sent to us.

Can I change it or share it?

You can use and adapt it for your own business. Please don't resell or rebrand it (see our Terms).

What if the result looks wrong?

It's AI and can be incomplete or wrong. Check anything important, and you make the decision.

Want a second pair of eyes?

If the check turns up gaps, or you're weighing several vendors, let's talk it through.