Opus 4.6 is now the default model in Claude Code. With 1M tokens of context and an 80.8% SWE-bench score, it’s the biggest single-generation jump yet. Here’s what changes for .NET developers.
Every Claude Code user knows the drill: approve the file edit, approve the build command, approve the test run. Auto Mode replaces that click-fest with a background safety classifier — so you can actually focus on building.
You’re deep in a feature branch. An urgent bug comes in. Instead of stashing, switching, and losing your flow — you open a second directory and keep going. Git worktrees make this possible, and Claude Code makes it powerful.
I write less code than ever. And yet I’m more productive. The question is no longer ‘how do I implement this?’ but ‘what should be built here and why?’
One Claude Code session is powerful. Two or three running simultaneously, each focused on a different part of your solution? That’s a multiplier.
Claude Code is powerful on its own. But when you split the work across specialized sub-agents — a test writer, a reviewer, a documentation agent — it becomes a team.
Your .NET solution has 15 projects, hundreds of files, and a mountain of generated code. Claude Code’s context window isn’t infinite. Here’s how you work smartly.
Claude Code out of the box is powerful. With skills and plugins, it becomes a .NET specialist that knows your patterns, frameworks, and conventions.
Claude Code hooks let you automatically run tests, format code, and enforce standards — without remembering to ask.
Entity Framework is in almost every .NET project. Migrations are tedious, LINQ can be tricky, and DbContext configuration is verbose. Claude Code understands your data model and does the heavy lifting.