A login button is not a boundary. This checklist makes sessions real, identity clear, and each record readable only by the right account — before customers arrive. Keep the app you built. Close the “anyone can read anything” demo defaults.
Auth and data means you can name who may sign in, how a session ends, and which records each account can see. Demo “open table” defaults leave. You keep the product. You invite customers only after object-level checks deny the wrong eyes.
Where vibe Auth fools people
A login screen can still leak every row
Builders often wire a pretty sign-in while APIs stay open. Boundaries live on the record — not the button.
Demo bypass still live on prod
Kill magic open routes before invites.
Sessions that never expire or revoke
Stolen cookies should not live forever.
APIs that return every tenant’s rows
Object-level checks — not UI hiding.
Confusing this with a full security pass
Security checklist covers secrets and threats. This page owns identity and records.
The boundary week
Sessions → identity → record tests
Prove deny before invite.
01
Define who may sign in
Roles written. Invite path owned.
02
Set session lifetime and revoke
Test logout and forced revoke.
03
Add object-level access checks
Cross-tenant reads must fail.
04
Retest with stranger accounts
Two tenants. Wrong-eye probes.
How to
How to lock auth and data before customers
Identity first, then records.
Step 01
Kill demo bypasses on the public host
No open admin, no shared magic links for writes.
Step 02
Write roles and invite rules
Who creates accounts. Who is admin.
Step 03
Set session revoke behavior
Password change and admin revoke.
Step 04
Add record-level deny tests
Tenant A must not read Tenant B.
Step 05
Invite only after probes fail closed
Document residual gaps.
Read next
Proof, the essay, and sibling intents
These pages are already on the site. Use them to pressure-test the bet before a call.
“What impressed us most about CodeCross was their ability to deeply understand our vision and translate it into a complete digital solution. Unlike many agencies that just focus on technical delivery, CodeCross approached our project like true partners.”
What belongs on an auth-and-data checklist that a security pass already missed?
Session revoke, invite rules, and object-level record tests. Security often catches leaked secrets; this page catches “logged in as A, still see B’s rows.”
How should session revocation work on a vibe MVP?
Logout clears the session; password change and admin revoke kill active tokens; stolen-cookie window is bounded. Test with a second browser — do not trust UI-only logout.
What is a minimum object-level test before you invite strangers?
Two tenant accounts. A creates a record. B’s session must receive deny on read and write. UI hiding without API deny is a fail.
How is this different from the security checklist?
Security covers secrets, threat passes, and abuse surfaces. Auth-and-data covers who signs in and which records they see. Run both — different jobs.
Name who may touch the record before you buy the traffic.
Bring roles, session settings, and two test accounts. We prove deny before invites.