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Highlights
Build your own claw and agent harness with Microsoft Agent Framework
What does it take to build your own "claw" - a capable, CLI-style agent that can plan, use tools, remember things, and safely act on your behalf? Coding agents and assistants like these can feel like magic, but underneath they are an agent harness: a loop around a language model wired up...
Read moreClick to read more about this postIn memory of the man who put red and green squiggles under words
Starting in Word and expanding to nearly every other word processor, and even things that aren't word processors.
Read moreClick to read more about this postStop overloading your skills
You built a skill for your technology. API references, authentication flows, SDK patterns, error handling, version info, all packed into one skill. The agent calls it, gets all that context, and generates code. The kicker? You've just wasted a lot of tokens.
It already knows
Models have...
Read moreClick to read more about this postLatest posts
May 6, 2026
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GitHub Copilot Modernize 101 is live on the Microsoft Developer Channel
Modernization used to be something you avoided until you couldn’t anymore.
A big rewrite. A long migration plan. A risky cutover. Something you’d maybe do once every few years—if you had to.
That model doesn’t work anymore.
The ask has changed. It’s not just “move to the...
Microsoft for Java Developers
May 6, 2026
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Announcing the Public Preview of Azure Cosmos DB Shell: Open-Source Power Meets AI-Driven Database Automation
Today, we're thrilled to announce the public preview of Azure Cosmos DB Shell – a powerful, open-source command-line interface that revolutionizes how developers interact with their Azure Cosmos DB databases. With integrated Model Context Protocol (MCP) server support, native agentic...
Azure Cosmos DB Blog
May 6, 2026
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Why not have changes in API behavior depend on the SDK you link against?
Static libraries don't stand a chance.
The Old New Thing
May 5, 2026
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Azure Cosmos DB Conf 2026 Recap: Lessons from Production
A team was running at 100% RU utilization. Throttles were compounding into retries. P99 latency was degrading. The assumption was obvious: provision more throughput.
They didn’t.
Instead, they found a single logical partition absorbing more than 80% of traffic. After fixing the...
Microsoft for Developers
May 5, 2026
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A dispute over the TAB key highlights a mismatch between Microsoft and IBM organizational structures
I want to speak to your manager.
The Old New Thing
May 4, 2026
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Announcing the WinApp VS Code Extension — Run, Debug, and Package Windows Apps in VS Code
VS Code is where many cross-platform and web developers already work, but getting package identity, MSIX packaging, and Windows SDK tooling often meant reaching for Visual Studio or command-line tools. The WinApp VS Code extension brings the full power of the Windows App Development...
#ifdef Windows
May 4, 2026
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Giving Copilot more C++ context using custom instructions in VS Code
In February, we announced how GitHub Copilot can now use C++ symbol context and CMake build configuration awareness to deliver smarter suggestions in Visual Studio Code. Today, we're excited to share new ways to further enhance your C++ development experience with Copilot and get the most...
C++ Team Blog
May 4, 2026
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Java OpenJDK April 2026 Patch & Security Update
Hello Java customers!
We are happy to announce the latest April 2026 patch & security update release for the Microsoft Build of OpenJDK. Check our release notes page for details on fixes and enhancements or download and install the binaries today. The source code of our builds...
Microsoft for Java Developers
May 4, 2026
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Microsoft Agent Framework - Building Blocks for AI Part 3
Build intelligent AI agents in .NET with the Microsoft Agent Framework. Learn how to create agents with tools, multi-turn conversations, memory, and graph-based workflows that bring together the building blocks from Parts 1 and 2.
.NET Blog