Independent technical publication
The field guide to AWS and AI engineering.
Beyond the docs: what actually works on AWS and with generative AI, for engineers and the teams around them. Real labs. Real costs. Clear decisions.
Popular: Bedrock pricingAccessDeniedNAT Gateway costClaude CodeAI use casesTerraform stateECS vs EKS
Start here · what do you need?
- Fix an AWS errorReproduce, diagnose and fix, cause by cause
- Choose between optionsComparisons with a clear recommendation
- Estimate or cut your AWS billReal costs, calculators and cost leaks
- Ship GenAI to productionBedrock guides, limits and benchmarks
- Use AI at workUse cases, analysis, writing and management
Browse by hub
Eight hubs, each with a pillar guide and hands-on articles that link to each other.
Applied AI
Generative AI for business: use cases, data analysis, writing, organization and management.
Use cases · Analysis · Prompts · Governance · ROI
Bedrock & GenAI
Bedrock in production: living guides, model trackers, benchmarks and cost models.
Bedrock · RAG · Agents · Token costs
Security & Access
Debug AccessDenied, leaked keys, accounts and OIDC with real labs and runbooks.
IAM · KMS · OIDC · Organizations
Cost & Networking
Find the cost leak, measure it and cut it: NAT, data transfer, logs, budgets.
NAT Gateway · Data transfer · Budgets
AI for Dev & DevOps
Claude Code on Bedrock, MCP servers and guardrails for coding agents.
Claude Code · MCP · Agents · Guardrails
IaC & Delivery
Terraform, CI/CD and AI-generated infrastructure code, tested before production.
Terraform · CI/CD · State · OIDC
Containers & Compute
ECS vs EKS and compute options, decided with numbers from a real account.
ECS · EKS · Fargate · Lambda
AWS Certifications
Exam technique from real cases for Cloud Practitioner and Solutions Architect.
CLF-C02 · SAA-C03 · Practice questions
AWS Certifications
Prepare for AWS exams with real cases
Exam technique built from real AWS situations: how to read the question, spot the keywords and eliminate the wrong answers.
Open the certifications hub →Latest articles
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Claude Code Subagents: How to Design, Configure and Use Them
Specialists with their own instructions, tools and context: the file format, a real example for AWS cost reviews, prompts to delegate and design rules.
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Agent Skills Explained: Package Your Team’s Know-How for Claude
What a SKILL.md is, how skills load on demand, a postmortem-writer example, and when to use a skill, a command, a subagent or MCP.
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Connecting MCP Servers to Claude and ChatGPT: A Practical Setup Guide
Claude Code, Claude Desktop, claude.ai, ChatGPT and Codex: how to add local and remote MCP servers, share them with a team and keep them safe.
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Advanced Prompt Patterns for AI Agents: Plans, Evidence, Fan-out and Critique
Six reusable prompts for Claude and ChatGPT agents: plan first, definition of done with evidence, parallel subagents, critic pass, clarifying questions and a repo context file.
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Claude Projects vs ChatGPT Projects and Custom GPTs: Building a Team Assistant
Shared instructions, curated files and external actions: which option fits your team, an instructions template for both, and how to curate the knowledge.
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How to Choose Generative AI Use Cases for Your Business: A Practical Scoring Framework
Frequent, checkable and cheap to get wrong: a scoring table to pick the first AI use cases, good examples by area and a four-week pilot plan.
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SAA-C03 Exam Tip: The NAT Gateway Bill That Teaches You VPC Endpoints
A common real-world AWS bill surprise turned into an original SAA-C03 practice question: the keywords, why the wrong answers fail, and the variations the exam likes.
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Using LLMs for Data Analysis Without Fooling Yourself
Let the model write SQL and explain results, never be the calculator. A prompt pattern, a checklist and where the data should run.