Plan it right before your AI builds it.

Get a stack and a brief your coding agent can build from.Get a stack designed around your budget and constraints, and a brief your coding agent can build from.

See what’s vulnerable or out of date in it today.See what’s vulnerable, end of life or out of date in it, checked against today’s data.

Or open a stack it already designed:

Free to start. No credit card.

Sample stack

What your agent missed

Real events from the last few months. Drag the line back to where your agent’s training stops.

17things your agent
doesn’t know

4exploited
4advisories
5end of life
4releases

4exploited in the wild
4critical advisories
5reached end of life
4new releases

Training cutoffApr 16, 2026

Live from CISA KEV, the GitHub Advisory Database and endoflife.date. Updated twice a day.

See what it makes

Each one started as a single sentence. Open any of them, no account needed.

See all 30 examples

B2B project management SaaS
Started as
“A B2B SaaS project-management tool with team workspaces, SSO/auth, Stripe subscription billing, transactional emails, file attachments and an admin dashboard. Production ready.”
11 components
Open in editor
Chat with your documents
Started as
“An AI assistant where teams upload PDFs and docs and chat with them. Answers cite the passages they came from, and each team has its own shared document library.”
10 components
Open in editor
Vintage furniture marketplace
Started as
“A marketplace for vintage furniture. Sellers list pieces with photos, buyers search and pay online, we take a commission and pay sellers out, and buyers can message sellers.”
11 components
Open in editor

See all 30 examples

Why not just ask Claude?

Your coding agent’s knowledge stops at its training date. StackPrism checks against today.

Your coding agent, on its own

Pick a stack for my booking app. Users are in the EU.

Go with Next.js 14.1 on Node 18, PostgreSQL 14 on AWS us-east-1, and Clerk for auth.

Sounds right. It’s what the model saw in training.

The same stack, checked by StackPrismchecked today

Next.js14.1.0CVE-2025-29927, fixed in 14.2.25
Node.js18End of life since Apr 30, 2025
PostgreSQL14End of life on Nov 12, 2026
AWSus-east-1Your users are in the EU
ClerkauthHealthy

Your agent’s brief gets the fixed versions and an EU region instead.

Live data, not training data
End of life, outages and CVEs, checked today.
Fitted to your constraints
Budget, scale, region and what you know.
Keeps watching
Checked again every time you open it.

CVE checks run on the pinned versions in a linked repo.

Who it’s for

Pick the one that sounds like you.

From an idea to a stack your agent can build.

Design my stack

Your idea

A marketplace for vintage furniture with payments and buyer–seller chat.

Auth

Clerk(selected)
Supabase Auth
Auth0

Buyer–seller chat

Supabase Realtime(selected)
Pusher
Stream

Recommended stack with the reason for each pick
Category	Technology	Why
Framework	Next.js	Listing pages render on the server, so search engines index every piece.
Database	PostgreSQL on Supabase	Listings, orders and sellers are relational data. Managed, with backups.
Auth	Clerk	Your pick. Buyer and seller accounts with social login, nothing to maintain.
Payments	Stripe Connect	Checkout plus payouts to sellers, without card data touching your servers.
Chat	Supabase Realtime	Your pick. Messages live next to the rest of your data.
Hosting	Vercel	Push to deploy, with a preview URL for every branch.

Prism Agentsees your diagram and today’s data

Is this ready for launch?

Checked OSV for next 14.1.01 advisory
Checked endoflife.date for PostgreSQL 14ends Nov 12, 2026
Read the Supabase status pageno incidents
Read the Next.js upgrade guide14.2 notes

Two things before you launch:

Upgrade Next.js to 14.2.25 or later. CVE-2025-29927 lets requests skip your middleware checks, including auth.
Plan the move off PostgreSQL 14. Support ends Nov 12, 2026.

Everything else checks out.

SourcesGHSA-f82v-jwr5-mffwendoflife.datestatus.supabase.comnextjs.org/docs

Apply as a planCopy as a task for your coding agent

$ head STACK_BRIEF.md

# Build "Vintage furniture marketplace"

## The stack (use these)

- **PostgreSQL on Supabase** — listings, orders, sellers

- **Clerk** — buyer and seller accounts

- **Stripe Connect** — checkout and seller payouts

## How the pieces connect

$ claude "Read STACK_BRIEF.md and build it step by step."

The same brief works in Codex (as AGENTS.md), Cursor or any coding agent.

Or connect your agent once

Connect Claude Code, Cursor or Codex to StackPrism over MCP, so the agent can read your stack and its health while it builds.

See the setup steps

acme/marketplacemain @ 4f2a9c1

package.jsonnext, stripe, @supabase/supabase-js, resend
pnpm-lock.yaml1,284 pinned versions
Dockerfilenode:20-alpine
docker-compose.ymlpostgres:14, redis:7
infra/main.tfaws_s3_bucket, aws_cloudfront_distribution
.env.exampleSTRIPE_SECRET_KEY, RESEND_API_KEY, CLERK_*
app/api/**/route.ts23 routes, drawn as one API node
supabase/functions/*4 edge functions

11 technologies mapped into one diagram

Already have code? Map it.

Connect GitHub, pick a repo, and see the stack you actually run in about a minute.

Reads manifests, lockfiles, Docker, Terraform and API routes
Draws the stack, not the file tree
Read-only: never writes to your repo or stores your code

Connect GitHub Or check a public repo first, no sign-up

A diagram that tells you when something breaks.

Every piece is checked against today’s public data when you open the diagram, and its node lights up when something’s wrong. Ask Prism Agent about any finding. Nothing to install.

68of 100

Stack health: needs attention

acme/marketplace, checked 06:00 UTC

1 critical2 warnings8 healthy

VulnerabilityExploitedExploited in the wildOSV.dev, CISA
CVE-2025-55182 in next 15.0.3. Fixed in 15.0.5
OutageGoogle Cloud status
Cloud Storage: elevated error rates in europe-west1
End of lifeendoflife.date
PostgreSQL 14 reaches end of life on Nov 12, 2026
Base imageDocker Hub
nginx:latest isn’t pinned, so builds aren’t reproducible.docker-compose.yml:12
Outdatednpm
A major version behind: stripe, @supabase/supabase-js

Health on every node. What to fix, most urgent first.

What it checks

Known vulnerabilitiesOSV.dev, CISA, FIRST: CVEs in your pinned versions, exploited ones first.
Provider outagesVendor status pages: Vercel, Stripe, Supabase, AWS, Google Cloud, Azure and more.
End of lifeendoflife.date, Docker Hub: Runtimes, databases and Docker images near end of support.
Outdated versionsnpm, PyPI, Docker Hub: Packages a release behind, and unpinned images.
Licence riskVendor licence pages, GitHub: SSPL, BUSL and similar, with an open alternative.
Unmaintained projectsGitHub, deps.dev, OpenSSF: Archived repos, deprecated packages, long-silent projects.

Linked repos are re-checked every day, and you get an alert in the app when something new turns red.

Then keep working on the map.

Chat with Prism Agent
It checks live sources before it answers. You approve every change.
Your stack at a glance
This stack has 11 components, built on Next.js, PostgreSQL, Stripe, Clerk and 5 more.
Live checks found 1 vulnerable package (1 exploited in the wild) and 1 end-of-life version.
Suggested next steps
1. CVE-2025-55182 in next 15.0.3: upgrade to 15.0.5 or later. Known to be exploited in the wild.
2. PostgreSQL 14 reaches end of life on Nov 12, 2026: move to a supported version.
Fix these 2 issuesRun a full review
Plan2 changes
- ↔Next.js 15.0.3 → 15.0.5
- ↔PostgreSQL 14 → 18
DiscardApply to diagram
Fix and Harden checklists
Every finding becomes a fix, plus a production checklist for your stack.
Vulnerability
CVE-2025-55182 in next
Exploited in the wild (CISA)15.0.315.0.5
Plan with Prism AgentDone
- Enable Row Level Security on every tableSupabase
- Verify webhook signaturesStripe
- Turn on Point-in-Time Recovery and test a restoreSupabase
History of every change
See what changed and when. Restore any earlier version.
1. Upgraded Next.js and PostgreSQLOn the canvas
  Prism Agent, 2 min ago
  ~Next.js 15.0.3 → 15.0.5~PostgreSQL 14 → 18
2. Mapped acme/marketplace
  Repo scan, yesterday
  +Upstash+Resend+3 connections
  PreviewRestore
Instant dependency check
Paste a public repo and see what’s vulnerable or end of life. No account needed.
Check a repo
What goes down with it
Pick any piece to see its blast radius.
If PostgreSQL on Supabase goes down
3
Stop working
1
Degrade
6
Keep working
- Web app Can’t reach the API.Web app → API → PostgreSQL
- Background worker Jobs wait and retry.
Soften it: add a read replica so reads keep working, and turn on point-in-time recovery.
Share a link
A read-only link for a teammate or client. Revoke it anytime.

Start free. Upgrade when you want more.

Every core feature is free. The AI parts share a monthly allowance.

Free

$0forever

Try it free

No credit card needed

A monthly AI allowance: roughly 25 stack designs, 90 repo maps or 100 Prism Agent messages
Design from an idea, map a GitHub repo or paste configs
Prism Agent, which checks live data before it answers, and Optimize recommendations
Stack Pulse, blast radius, and Fix and Harden checklists
Daily re-checks of linked repos, with in-app alerts for new critical findings: vulnerabilities, end-of-life versions and outages
History and hand-off to Claude Code, Codex or Cursor

Pro

$19.99per month

Start free, upgrade anytime

Fair-use limits apply

Everything in Free, plus:

Auto-sync: linked repos are re-scanned when their branch has new commits, so the map stays in step with your code
10× the monthly AI allowance (fair use)
File uploads to map an existing stack
Export to PNG, SVG and PDF
Step-by-step migration plans when you change a technology

Cancel anytime. 7-day refund on your first payment. Terms

Questions

Who is it for?

People building with coding agents like Claude Code, Cursor or Codex who want the stack chosen and checked before the agent starts, and small teams who want one current picture of the stack they run.

How does my coding agent use it?

Two ways. Copy the build brief into your project as a file the agent reads, or connect Claude Code, Cursor or Codex over MCP, so the agent can read your stack and its health while it works. Setup steps

Do you store my code?

No. A scan reads your manifests and config, passes them to our AI provider to draw the diagram, and keeps only the diagram and the commit it came from. We never write to your repo.

What do the health checks cover, and how often?

Stack Pulse, the health check, looks at vulnerabilities, outages, end-of-life dates, outdated or unmaintained packages and licence risk, from public sources like OSV.dev, CISA and vendor status pages. It runs whenever you open a diagram, and on Pro linked repos are re-checked daily. Vulnerability scanning needs a linked repo, because that’s where the exact versions live.

Do I need an account?

To design or map your own stack, yes: a free one, one click with Google. No credit card. The example stacks are open to everyone: explore one, open it in the editor and watch the health checks run, all without an account.

What does the free plan include?

Every core feature, including a daily re-check of linked repos with in-app alerts. The AI parts share a monthly allowance, roughly 25 stack designs, that resets on the 1st. Pro adds auto-sync for linked repos, 10× the allowance, file uploads, export and migration plans.

Can I cancel?

Anytime, from the billing page. Ask within 7 days of your first payment and we’ll refund it. Details are in the terms.

Start with an idea or a repo.

Either way your coding agent gets a plan built on today’s data, and the map keeps checking it.

Design my stack Connect GitHub

Not sure yet? Explore the example stacks, no account needed.

Plan it right before your AI builds it.

What your agent missed

See what it makes

B2B project management SaaS

Chat with your documents

Vintage furniture marketplace

Why not just ask Claude?

Live data, not training data

Fitted to your constraints

Keeps watching

Who it’s for

From an idea to a stack your agent can build.

Already have code? Map it.

A diagram that tells you when something breaks.

What it checks

Then keep working on the map.

Chat with Prism Agent

Fix and Harden checklists

History of every change

Instant dependency check

What goes down with it

Share a link

Start free. Upgrade when you want more.

Free

Pro

Questions

Start with an idea or a repo.