Stop architecting with vibes.
Paste your rough idea. Get three real architectures, an honest tradeoff matrix, a diagram that doesn’t look like garbage, and a brutal roast — in under four minutes.
What you actually get back.
Three columns. Same project. Real components — the table is rendered, the diagram is Mermaid, the roast is shaped like the in-app card.
Tradeoff matrix
3 options × 6 dimensions| Option | Speed | Cost | Scalability | Security | Complexity | Team fit |
|---|---|---|---|---|---|---|
Monolith on Render Boring, fast, ships next week. | ||||||
Modular monolith + workers Pragmatic middle ground. | ||||||
Event-driven microservices Scales hard. Hurts harder. |
Architecture diagram
Realtime collaborative whiteboardBrutal roast
Verdict + top issues“This is three monoliths in a trenchcoat pretending to be microservices.”
- CriticalNo idempotency on the booking endpoint
First retry under load will double-charge users. Pager duty incident waiting to happen.
- HighPostgres is doing the work of a queue
FOR UPDATE SKIP LOCKED works until it doesn't — pull a real broker before launch, not after.
- MediumAuth and billing share the same service
A billing rollback should not be able to log every user out. Split before you grow past 1k MAU.
Why three options, not one.
Anyone can hand you a single answer. The interesting part — the part that decides whether your project survives its second year — is the comparison. We always show three real architectures with different tradeoffs, scored on the same six dimensions, so you’re forced to make a choice instead of sleepwalking into whatever was first on the page.
One option will be boring and ship next week. One will scale to the size you secretly hope you’ll need. One will be the pragmatic middle. None of them will be the “perfect” answer, because that answer doesn’t exist. The point is to see what you’re trading away — in writing, with numbers — before you spend three months building the wrong one.
We argue with you, not at you.
Paste any architecture, PRD, or napkin sketch. Get back a specific, technical critique — the kind a senior engineer would give in a real review, not the kind a model gives when you’ve told it to be nice.
“You wrote a Notion doc, sprinkled the word 'microservices' on it, and called it an architecture.”
- CriticalNo tenancy boundary on the data layer
Every customer's rows share one Postgres without RLS. First enterprise SOC2 review will end this immediately.
- CriticalWebhook handler has no replay protection
Stripe will retry on timeout. You will charge twice. Add an idempotency key column on day one, not after the incident.
- HighAll async work runs in the request thread
PDF generation blocks the API for 8 seconds. Either move to a worker queue or accept that p99 latency is whatever your slowest job decides.
- HighSecrets live in environment variables only
No rotation, no audit, no break-glass. Move to a managed secret store before your first hire who isn't you.
- Kubernetes for 2 services
You have 200 users and one developer. A single Render service costs $7/mo and would fit on a Post-it note.
- Event-sourced billing
You don't need a 14-event projection to record 'user upgraded'. A boring audit table will out-survive your replay logic.
Free to start. $29/mo if it sticks.
Upgrade only if you actually keep using it. No credit card to start, no “contact sales” nonsense.
- 3 architecture generations / month
- 1 brutal roast / month
- Demo project (always free, never counts toward caps)
- Auto-generated diagrams
- Export as Markdown
- Unlimited architecture generations
- Unlimited roasts
- Sketch review (upload a whiteboard photo)
- Refinement passes (simpler / scale further / swap DB / custom)
- Priority model — faster, more thorough analysis
- Export as Markdown, JSON, and PNG