The craft — performance, security, testing, and code quality.
How hotel booking confirmation works after payment: authorize, book with the supplier, then capture, and what happens if another site sells the room first.
When to use a CDN on Azure, from a flash sale where one App Service served 1.6 million photo downloads. What to cache, and what never to.
When to use Azure Managed Redis, which replaces Azure Cache for Redis, learned from a flash sale that hit Azure SQL 2,200 times a second.
Browsing products without login was a real requirement. Trusting requests because they came from our own app was the bug, and curl does not care.
A working JWT bearer auth setup for ASP.NET Core Minimal APIs — token validation, role policies, and the config mistakes that silently disable security.
Tokens are not words, and they are not characters. Here is what a token really is, why AI billing counts them, and how to work out the cost of a request.
Fifteen tested habits that cut monthly AI token usage without cutting how much you use AI, from context discipline to knowing when to restart a chat.
A 400K monthly AI token budget sounds generous until agent mode eats it in a week. Here is the daily Copilot workflow I use to make it last the month.
A beginner GitHub Copilot Hooks tutorial: what a hook is, why an AI agent needs deterministic guardrails, and how to write your first one in ten minutes.
The GitHub Copilot PR summary: why an auto-generated description that restates the diff is noise, and how to get one reviewers actually read.
A software architect on GitHub Copilot code review: build a Skill that automates the mechanical layer, and the limits that keep a human in the loop.
A build-along for .NET developers: create one GitHub Copilot Skill (SKILL.md) that enforces Clean Architecture, CQRS and your API contract.
GitHub Copilot Skills explained by an architect: what they are, how they differ from prompts and instructions, and how to build reusable Skills for teams.
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