Map authority
Identify where amount, eligibility, identity, configuration, and payment truth enter and leave each system.
Romeo Apps
Pre-launch payment risk scan.
A read-only first pass that turns Stripe, auth, configuration, and data-boundary uncertainty into an evidence-backed launch decision.
The sample below is synthetic. Paid findings are manually reproduced and tied to exact files, flows, and observable states.
- Read-only source
- Synthetic data
- No production secrets
- Evidence per finding
Decision-grade first milestone
Find launch blockers before real registrations begin.
The scan follows value and state across the browser, API, database, Stripe objects, webhooks, and customer/admin messages. It distinguishes a plausible concern from a reproduced defect and a reproduced defect from a launch blocker.
Synthetic report excerpt
Every finding answers four review questions.
Scope5 launch-critical flows
EvidenceExact path + reproduction
DecisionBlock, fix, or monitor
SeverityRiskEvidence soughtAcceptance
CriticalClient-controlled amountTampered item, price, discount, credit, and voucher requests traced to the server-created PaymentIntent.The server recomputes the payable amount from authoritative records; altered values cannot reduce the charge.
CriticalDuplicate charge or registrationConcurrent submits, network loss, API retries, and duplicate or out-of-order webhook deliveries.One business operation produces one durable registration and at most one successful charge.
HighFalse payment successReplayed client success, delayed processing, requires_action, cancellation, and server retrieval of payment state.Access and confirmation derive from a verified server-side Stripe state, never a browser claim.
HighAdministrative data exposureAPI authorization, Supabase RLS, object ownership, admin routes, logs, and response-field minimization.Anonymous and ordinary users cannot enumerate or retrieve another family's registration data.
MediumState disagreementDatabase status, Stripe status, customer confirmation, admin email, and recovery after partial failure.Each message is truthful, retry-safe, and recoverable when payment succeeds but a later step fails.
This is a reusable reporting example, not a review of any named customer application.
Bounded method
Trace, challenge, reproduce, decide.
Exercise failures
Use synthetic requests and fixtures for tampering, retries, concurrency, delayed payment states, and partial completion.
Return evidence
Rank reproduced findings, name exact source references, state the launch decision, and bound the remaining review.
Access boundary
Useful before production access is justified.
The first milestone can run against read-only source and synthetic or redacted fixtures. A report never treats automated output as proof: each finding is reproduced, reviewed, and owned by Romeo Apps.
- No live card data.
- No child or family records.
- No payout-setting changes.
- No unrestricted secrets.
Prepaid, bounded, accountable
Start with the smallest review that can change a launch decision.
Confirm the current milestone, access boundary, deliverable, and fixed price first. Source access begins only after payment.
Discuss a paid scan