sequo

You know what you want to build.

You don’t know what step one is.

Sequo turns one paragraph into an ordered plan and hands you the first prompt.

Describe your project idea
idea.md
no account until the plan is written

Your idea stays yours, account or not — we don’t show it to other users, use it in marketing, or train on it, and we delete it if you ask. Privacy policy

§ 01

What you get

1 line
A tool where designers upload mockups and clients leave comments pinned to the image.
8 steps8 documentsa prompt each
01Set up Supabase project and auth
02Create projects and mockups⧉ copied
PROMPT FOR STEP 0246 lines
Read docs/idea.md, docs/specification.md, docs/architecture.md, docs/decisions.md, docs/development-plan.md, docs/coding-standards.md, docs/invariants.md and CLAUDE.md first.

Create the Supabase tables for Project and Mockup using a migration that you write and then apply yourself with the DATABASE_URL connection string.

paste into Claude Code or Codex
03Build public project viewer
04Implement pinned comments on images
4 more
EVERY PROMPT READS THESE
▾ docs/
idea.md
specification.md
architecture.md
development-plan.md
decisions.md
invariants.md
coding-standards.md
CLAUDE.md
AGENTS.md on Codex
committed to your repo
§ 02

Your agent builds in the right order

each step one notch right of what it needs
01Set up Supabase project and auth
02Create projects and mockups
03Build public project viewer
04Implement pinned comments on images
05Add threaded replies to comments
06Build comment list and navigation
07Add resolve functionality
08Deploy to Vercel
a prompt per step, written for your agent
Claude Code
reads CLAUDE.md
Codex
reads AGENTS.md
+ THE 7 IN docs/
idea.md · specification.md · architecture.md · development-plan.md · decisions.md · invariants.md · coding-standards.md
You write no code in Sequo.Sequo writes none of yours.
§ 03

The part the agent can’t do

step 1 of 8 · two things, about two minutes
◆ PREPARE — YOUR PART
Create a Supabase project, copy the URL and anon key
Put them in .env.local
named up front, before the agent runs
STEP 1 OF 8Set up Supabase project and auth❯ RUN — FOR YOUR AGENT
Writes the schema and the migrations
Wires auth into the app
Runs it and checks it works
↔ AND WHEN IT ASKS BACK
YOU PASTE WHAT IT SAID
permission denied for schema public
SEQUO ANSWERS FROM YOUR OWN DOCS
That’s the anon key running a migration. It needs DATABASE_URL — here’s the follow-up prompt to hand back.
Copy follow-up
ANSWERED FROM YOUR PROJECT’S OWN DOCUMENTS
idea.md · specification.md · architecture.md · development-plan.md · decisions.md · invariants.md · coding-standards.md
§ 04

When you change your mind

at step 4 · nothing applied until you accept
01Set up Supabase project and auth
02Create projects and mockupsCONTRADICTED
03Build public project viewer
04Implement pinned comments on images
◆ YOU CHANGE YOUR MINDanyone with the link should be able to resolve a comment, not just the owner
05Add threaded replies to commentsREWRITTEN
06Build comment list and navigationREWRITTEN
07Add resolve functionalityREMOVED
08Deploy to VercelREWRITTEN
⇄ IMPACT OF YOUR CHANGE
! Already built, and now inconsistent
CONTRADICTED02 · Create projects and mockupsits tables assume a comment has an owner
STILL STANDS01 · Set up Supabase project and authsign-in is untouched by this
Nothing finished is deleted or renumbered. Your completed steps keep their status, their ticks and any answers you saved.
◆ The plan after this change
ADDEDLet anyone with the link resolve a comment
REWRITTEN05 · 06 · 08they take the new rule without being asked again
REMOVED07 · Add resolve functionalitynot started, so nothing is lost but the step
AND AFTER STEP 8PROthe next phase is planned on top of what’s running — steps 09 onward, against the code that exists
§ 05

Inside a step

Every step splits in two. § 01 is the half your agent runs; this is the half it cannot.

STEP 3 OF 8Designer sign-inphase 1
◆ PREPARE — YOUR PART0 OF 2
Create a Supabase project, copy the URL and anon key
How? ⓘ
Put them in .env.local
NEXT_PUBLIC_SUPABASE_URL
NEXT_PUBLIC_SUPABASE_ANON_KEY
↔ IT ASKED BACK — YOU PASTE WHAT IT SAID
“permission denied for schema public”
SEQUO ANSWERS FROM YOUR OWN DOCS
That’s the anon key running a migration. It needs DATABASE_URL — here’s the follow-up prompt to hand back.
Copy follow-up
§ 06

Pricing

Build one thing free. Pay when you keep building.

FREE
No card
For building one thing. The whole product, one project at a time.
no VAT · no trial to cancel · no expiry
One project at a time
An ordered plan, written for the agent you chose
Eight living documents
One copy-ready prompt per step
PRO
$20/month + VAT
For more than one project, and for everything that comes after v1.
VAT added at checkout where it applies.
Keep building after the last step
Up to 10 new projects a month
Plans sized to the product, not capped
Rewrite anything that comes out wrong — a step's prompt, a document, or the whole plan
IN THE WORKSNot included yet — tell us which one you want first.
Cancel any time — everything you've built stays yours.Full pricing details →

Describe the thing you’re building. The questions, your idea structured, and how big the plan will be — all before you make an account.

Describe your project idea
idea.md
no account until the plan is written