You keep re-explaining your project.
YOUR REPO
▾ docs/
idea.md
specification.md
architecture.md
development-plan.md
decisions.md
invariants.md
coding-standards.md
CLAUDE.md
AGENTS.md on Codex
Sequo writes these, plus a prompt for every step. Your agent writes the code.
docs/ ·7CLAUDE.mda prompt per step
1
You keep re-explaining your project.
2
Your agent keeps forgetting it.
3
Sequo writes the plan and the decisions into files you keep in your repo, then hands you one prompt per step. Every prompt names the files to read first, so you stop being the one who remembers.
Describe your project idea
idea.mdplain english · 1–2 sentences
1
▍ a gym session tracker for my climbing gym
no account until the plan is writtenWrite the plan⌘↵
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
§ 02
How it works
01
Describe your idea
One or two sentences in plain English. No template, no form to fill in.
docs/idea.md
02
Answer a few clarifying questions
The ones that change the build: who signs in, what ships in v1, what waits. Your answers become decisions on the record.
docs/decisions.md
03
Get an ordered plan and eight living documents
The whole build in dependency order, plus the documents that describe your product — written for your repo, not left in a chat.
docs/ · 8 files
04
Copy one prompt per step into your agent
Each prompt names the documents to read first and the scope to stay inside. Run it, check it works, mark it done.
copy · run · mark done
05
Continue after the last stepPRO
Pick what to build next and a new phase is planned on top of what exists, with the documents updated to match.
docs/ updated
You write no code in Sequo.·Sequo writes none of yours.
§ 03
Why not just CLAUDE.md or AGENTS.md?
A markdown file works. Until the project outgrows it.
One file is the right call early. You write down the stack and a few decisions, the agent reads it, and everything holds.
Then the project grows. The file gets long, the decisions pile up, and the agent starts skipping it — no error, no warning, it just stops arriving with the context. You find out when finished work comes back rewritten.
From there you have three options. Keep the documents current by hand, which is a second job. Re-explain the project at the start of every session, which is the thing you were avoiding. Or let something else own it.
Sequo writes the documents as you go and names them in every prompt, so the file being read is never a question. And you get the plan itself: the whole build in dependency order, one prompt at a time.
§ 04
Inside a step
Every step splits in two: what your agent runs, and what only you can do.
STEP 3 OF 10Designer sign-inphase 1
❯ RUN — FOR YOUR AGENT
Read docs/architecture.md and docs/decisions.md first.
Implement magic-link sign-in with Supabase Auth. Guard every project route. Leave the upload flow alone.
Copy prompt
◆ 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
§ 05
After the last step
Shipping v1 isn’t the end of the plan. Pick what comes next and a new phase is planned on top of everything already built, with the documents updated to include it.
PLAN10 of 10 steps donephase 1 complete
YOU DEFERRED THESE YOURSELF
Version history on each mockup
Client sign-off on a final round
FOLLOWS FROM WHAT YOU BUILT
Daily digest of new comments
Review links that expire
OR IN YOUR OWN WORDS
Let clients pay a deposit before I start a round.
→ phase 2planned on top of the 10 steps already builtspecification.md · decisions.md · development-plan.md updated
§ 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
Start free
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
Cancel any time — everything you've built stays yours.Full pricing details →
§ 07
Who it’s for
FOR YOU IF
You build with Claude Code or Codex and the agent is fast but forgetful.
You want the decisions written down where the agent has to respect them.
You'd rather work through an ordered plan than improvise session by session.
NOT FOR YOU IF
You want the AI to build the whole thing unattended.
You won't read a plan before running it.
Sequo writes files, not conversation — if you want another chat window, this isn't one.
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.mdplain english · 1–2 sentences
1
▍ a gym session tracker for my climbing gym
no account until the plan is writtenWrite the plan⌘↵