GitHub Copilot for Engineers: Getting Better Results
Original post: GitHub Copilot for Engineers: Getting Better Results GitHub Copilot moved to usage-based billing in June 2026, dropping the flat subscription model that made monthly costs predictable. For teams using it heavily across multiple projects, that shift puts a premium on being deliberate: reaching for the right model, keeping prompts focused, and building a configuration that produces good results without a lot of back-and-forth iteration. Many of us install the extension, start with the defaults, and only tune settings later. The defaults are a reasonable starting point, but they are not a full configuration. A small investment in setup changes how much you get out of every request on an ordinary working day, and that matters more now that each request has a cost attached. This guide covers the full path: getting the tooling in place, choosing models with cost in mind, layering global and project-level rules, and building out instructions, agents, and skills that make Copilot predictable across different kinds of work. Architecture overview Diagram fallback for Dev.to. View the canonical article for the full version: https://sourcier.uk/blog/github-copilot-for-engineers Before you start Subscription and VS Code extension You need an active GitHub Copilot subscription. Plans are available at individual, business, and enterprise tiers at github.com/features/copilot . Once active, all tools use your GitHub account credentials. The GitHub Copilot extension for VS Code is the primary day-to-day interface. Install it from the Extensions panel or via the CLI: code --install-extension GitHub.copilot The extension provides inline completions as you type, Copilot Chat in the sidebar, inline chat on any selection via Cmd+I / Ctrl+I , agent mode for multi-step tasks, and multi-file edits with a single review step. Defaults keep improving, so avoid cargo-culting old setting lists. Focus on non-default tweaks that improve signal quality and control usage: Setting Value