AI2026-04-14
Claude Code power user guide: skills, hooks, subagents
Configure Claude Code beyond defaults: skills, hooks, subagents, and CLAUDE.md memory. Working examples, team patterns, and common setup mistakes to avoid.
14 minRead Breakdown
Every breakdown
in one place
The full Refactix library of AWS and AI engineering breakdowns, grounded in real production work.
AI2025-11-18
LangGraph for autonomous AI agents: state machines that actually loop
How to use LangGraph for stateful AI agents that branch, loop, retry, and pause for human approval, with code for state, cycles, and checkpointing.
14 minRead Breakdown
AWS2025-09-19
Cutting AWS Lambda cold starts: SnapStart, runtimes, packaging
How to cut AWS Lambda cold starts with SnapStart, smarter runtime choices, smaller packages, and provisioned concurrency without blowing the budget.
14 minRead Breakdown
AWS2025-09-16
ECS Fargate vs EKS: how I decide between them in 2025
The cost math, migration notes, and decision framework I use when picking ECS Fargate or EKS for a workload on AWS.
15 minRead Breakdown
AWS2025-08-12
AWS Cost Anomaly Detection: catching bill spikes before they hit
Catch unexpected AWS spend before it hits the bill with AWS Cost Anomaly Detection. How to set up monitors, alerts and tagging so the reports are useful.
6 minRead Breakdown