How it actually works

Four stages, one closed loop. Then you can try it yourself.

How Proof works

The thinking stays yours

01 · before the run

Frame the problem on a canvas

Concepts, not one long prompt.

concept canvas
Birthday RSVP
Responses
Capacity
Location
Cap it, then waitlistpicked
02 · the run

Hand off a scoped brief

Your agent builds it. Proof picks it back up.

agent runBirthday RSVPscoped brief
buildRSVP form with a capacity cap
keepwaitlist when the cap is hit
skipauth and billing stay untouched
Brief handed off
Agent working on your machine · 6 files
PR opened, waiting on your review
ready to review
03 · after the run

Review through three lenses

Concepts, architecture, and files, tracked as you open them.

concepts
Responses
Capacity
Location
architecture
interface
services
data
files
RsvpForm.tsx
capacity.ts
waitlist.ts
unseenseenapprovedapproved unread

Signing off a file you never opened is allowed, and the record notes it as exactly that.

04 · what you keep

Prove it with a sealed record

What you read, approved, or sent back.

Birthday RSVP#1sealed
FrameChose to cap capacity, then waitlistCapacity × Location
AgentWrote 6 files on your machine
ReviewApproved the form, read in fullResponses
ReviewSent the capacity check back to fixCapacity
ReviewApproved, explained in your wordssealed
Exported as a pull request
your turn

Same four stages. You're driving this time.

Interactive demo

An interactive walkthrough of the full Proof loop loads here: Ideation before the run, the agent's run, and Review after it. It shows how you frame a problem into concepts, hand the chosen approach to your agent, then review what changed as a map of concepts with a defensible record of every decision and who approved it.

a different question

Where Proof fits next to the review tools

They check the diff. Proof checks whether the right person understood it and decided.A diff is the line-by-line list of what changed in the code.

when each one is active, across the life of a change
You decideAgent writesIt ships
Other AI review tools
comments on the diff

active only at the end · you judge off the record.

Proof
Ideation
your agent
Review
one record, end to end

active at both ends · a person is on the line.

Free to start. No card needed.