ProBackend

SpendLens

AWS cost forensics for engineering-led startups.

Read-only AWS analysis brings customer-owned CUR data and inventory context into findings your team can review.

What it does

Evidence for the review, not a black box.

EC2 and unattached EBS

Inventory and utilization context support idle-instance and detached-volume review.

S3 lifecycle signals

Lifecycle signals are surfaced alongside relevant context.

RDS rightsizing

RDS context supports a rightsizing review.

How you start

Connect context in three steps.

  1. Create a cross-account read-only role with an external ID.
  2. Connect the customer-owned CUR export.
  3. Review scan results and attached evidence.

Walkthrough

See the evidence before the decision.

app.probackend.com/spendlens/reports · synthetic reference sample
Unattached EBS volume

HIGH · review needed

Resource context · age · size · estimated savings field

# remediation draft
aws ec2 delete-volume --volume-id <volume-id>
Read-only access
The customer keeps resource control
Remediation remains human-applied guidance

Fit

Who it is for.

  • Engineering teams needing evidence for spend review.

Not for

Where it does not fit.

  • Bill payment tools.
  • Infrastructure mutators.

FAQ

Questions before you start.

Does SpendLens need AWS keys?

No. The documented model uses a cross-account read-only role protected by an external ID.

How is the role protected?

The customer creates a cross-account read-only role with an external ID.

Who owns the CUR export?

The customer-owned CUR export remains the customer’s data context.

What does a finding contain?

Findings attach severity, resource context, an estimated-savings field, evidence, and remediation guidance where available.

Can SpendLens apply remediation?

No. Remediation remains customer-applied guidance.

What detector coverage is described here?

This page describes EC2 idle signals, unattached EBS, S3 lifecycle signals, and RDS rightsizing review only.

Start with evidence.