ls /evidence-notes/
Evidence Notes.
One AWS cost question at a time: the claim, the evidence, what it supports, and what it does not prove. Each note separates what the evidence shows from what still needs interpretation.
Notes.
“The AWS bill changed” is not a useful investigation question
06 Oct 2026 · Investigation practice
Share AWS cost evidence without sharing customer identifiers
19 Aug 2026 · Kulshan
Put the evidence boundary before the model
22 Jul 2026 · Architecture
Keep the evidence inside the enterprise
20 Jul 2026 · Evidence
When the billing display is wrong
18 Jul 2026 · Billing
Mean time to explanation
18 Jul 2026 · Practice
Open the EC2-Other drawer
25 Jun 2026 · Cost data
CUR 2.0 and FOCUS answer different questions
20 Jun 2026 · Data exports
Enable AWS Data Exports
19 Jun 2026 · Procedure
Start broad in Cost Explorer
18 Jun 2026 · Workflow
A NAT gateway charge is not a traffic path
04 Jun 2026 · Networking
Have a cost question these notes did not close? The AWS Cost Question Review answers one question in one evidence memo.