Casey Irvine
Software Engineer · Making it up as I go along
Recent Posts
Jun 25, 2026
How My Team Changed Our Code Review Culture for the Agentic Era
My team at Microsoft stopped treating code reviews like a free-for-all and rebuilt the culture for an era where agents write a lot of the code — assigned reviewers, junior engineers brought in early, and PRs built around validation and diagrams instead of line-by-line nitpicking. Here's what changed and why it's working.
Jun 25, 2026
Copilot App Canvases — and the Excalidraw One I Built
A tour of canvases in the GitHub Copilot app, plus a showcase of Excalidraw Workbench — a canvas I built so the agent can generate, edit, and take comments on diagrams without ever leaving the app.
Jun 11, 2026
When AI Credits Stopped Feeling Finite
I work somewhere with a virtually unlimited AI budget. It's an incredible benefit — and it's quietly making me a worse decision-maker about which model to reach for. Here's what I've noticed, both the upside and the downside, and what I'm trying to do about it.