IAnswerable

02 Jan 2026

Set Up AWS Billing Alerts Before You Need Them

Budget alarms and cost anomaly detection in ten minutes.
01 Jan 2026

Write IAM Policies That Aren't Just Star Star

A practical method for narrowing an over-permissive policy without breaking the app.
31 Dec 2025

Lambda@Edge vs CloudFront Functions

Which one to use for redirects, headers, and auth at the edge.
30 Dec 2025

Custom Error Pages in CloudFront for SPAs

Fix the 403 on refresh that every single-page app hits behind CloudFront.
29 Dec 2025

CloudFront Cache Invalidation Without Wasting Money

Versioned filenames beat invalidations. Here's the pattern.
26 Dec 2025

Make an S3 Bucket Public the Right Way

Bucket policies versus ACLs, and why your objects still return 403.
25 Dec 2025

Cut S3 Costs with Lifecycle Rules

Move old objects to cheaper storage classes automatically and stop paying for cold data.
24 Dec 2025

Upload Files to S3 Directly from the Browser

Presigned URLs, CORS, and keeping your server out of the upload path.
23 Dec 2025

Designing Tools for AI Agents

Why your agent picks the wrong tool, and how the description fixes it.
22 Dec 2025

Stream LLM Responses in a Web App

Server-sent events, backpressure, and what to do when the user closes the tab.