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Visual Studio 2026 18.8 puts expert-authored .NET and Azure agent skills in the tool picker under a Built-in category, disabled by default. The default is the interesting part.

On 2026-07-31 Microsoft shipped a polyglot unit-test agent in dotnet/skills. The interesting part is the mandatory pre-completion gate that pseudo-mutates your assertions before the agent is allowed to say it is done.

The keyboard shrinks your Scaffold body's max height, so a Column that just fit now overflows. Wrap the body in a scrollable instead of turning resizeToAvoidBottomInset off.

Default to IOptions<T>. Use IOptionsMonitor<T> when a singleton has to see config reloads, and IOptionsSnapshot<T> only when a scoped consumer wants a value that is stable for one request. The deciding axis is the lifetime of the consumer, not the shape of the settings.

Agent skills and MCP servers in GitHub Copilot code review went GA on 2026-07-29. Here is where the files live, why skills load from the head branch, and why every MCP tool call in a review is read-only.

Read the second line of the error, not the first. It names the cause: a stale Podfile.lock snapshot, a deployment target that is too low, or two plugins pinning the same transitive pod.

That line is a wrapper, not the error. Re-run with flutter run --verbose or ./gradlew assembleDebug --stacktrace, read the real Gradle failure, then fix that.

Claude Code 2.1.212+ moves any main-conversation MCP tool call still running at two minutes into a background task. Set CLAUDE_CODE_MCP_AUTO_BACKGROUND_MS=0 to stop it, raise the threshold to move the line, or send progress notifications from the server.

The asset key is missing from the compiled bundle, not from your disk. Fix the pubspec indentation, add the trailing slash, match the key exactly, then full restart.

Prerendering runs your component on the server with no browser attached, so IJSRuntime throws. Move the call into OnAfterRenderAsync, gate it on RendererInfo.IsInteractive, or disable prerendering.