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Who signs in · Who sees what

Lock who can sign in and who can see each record

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.

30 min · senior team · leave with a clear next step

In plain words

Answer you can cite

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.

  1. Step 01

    Kill demo bypasses on the public host

    No open admin, no shared magic links for writes.

  2. Step 02

    Write roles and invite rules

    Who creates accounts. Who is admin.

  3. Step 03

    Set session revoke behavior

    Password change and admin revoke.

  4. Step 04

    Add record-level deny tests

    Tenant A must not read Tenant B.

  5. Step 05

    Invite only after probes fail closed

    Document residual gaps.

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Before you book

Practical answers

Prefer writing? Send project details and we reply within one business day.

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.

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