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In 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.
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Stop 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...
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Jun 25, 2026
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Learn from Microsoft: Transform software development through an agentic platform

Poonam Gupta
See how Microsoft is transforming software development with agentic workflows, AI-powered automation, and specialized agents across the engineering lifecycle.
Microsoft for Developers
Jun 25, 2026
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The case of the DLL that was not present in memory despite not being formally unloaded, part 1

Raymond Chen
Figuring out how it went missing.
The Old New Thing
Jun 25, 2026
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Which Azure Cosmos DB Role Does My App Need?

Sudhanshu,
Iria
In the previous post in the series, we covered the security decisions you make on day one. In this part, we will talk about how to give your app access to Cosmos DB data, using roles and a managed identity instead of keys. The situation You’ve built your app. It works locally. Now...
Azure Cosmos DB Blog
Jun 24, 2026
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Visual Studio Code 1.126

Visual Studio Code Team
Learn what is new in Visual Studio Code 1.126 Read the full article
VS Code Blog
Jun 24, 2026
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Azure Functions MCP Extension: What's New at Build 2026

Lily Ma
A roundup of what shipped in the Azure Functions MCP extension since preview: resource and prompt triggers, MCP Apps, built-in MCP authentication, structured and rich content, fluent .NET configuration APIs, and what is coming next.
Azure SDK Blog
Jun 24, 2026
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When the model has never seen your code

Waldek Mastykarz
This is the fifth article in a series about Agent Experience (AX): the practice of making AI coding agents work correctly with your technology. The series covers what you can and can't control in the agent stack, how to measure whether your extensions are helping or hurting, and how to...
Microsoft for Developers
Jun 24, 2026
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Cancellation of Windows Runtime activities is asynchronous

Raymond Chen
You're asking for it to cancel, but it doesn't wait for confirmation.
The Old New Thing
Jun 23, 2026
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Streamline C++ Code Intelligence Setup in Copilot CLI

Sinem Akinci
C++ developers can now bring IDE-style semantic intelligence into Copilot CLI with less setup. The C++ language server plugin supports richer code navigation, diagnostics, symbol understanding, and code changes by using the same build context your compiler does. That build context...
C++ Team Blog
Jun 23, 2026
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Add vs Stage and Register

Howard Kapustein
As previously mentioned to 'install' a package, as people think of the term, Windows actually performs two separate operations: staging and registration. To oversimplify: Staging puts the package content on disk. At this point the package is present, but inert and unused. Registering...
Inside MSIX
Jun 23, 2026
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Microspeak elaborated: Isn't escrow just a release candidate by another name?

Raymond Chen
Yes, but the name is a psychological trick.
The Old New Thing
Jun 23, 2026
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Going beyond text in Microsoft 365 Copilot - Introducing SharePoint Copilot Apps

Vesa Juvonen
Microsoft 365 Copilot is brilliant with words - but work isn't only words. Introducing SharePoint Copilot Apps: bring rich, interactive UX components straight into the Copilot canvas, built with any JavaScript stack your team already knows. Reuse your existing SPFx investments across Copilot, SharePoint, and Teams - no new platform, no infrastructure, no lock-in.
Microsoft 365 Developer Blog
Jun 22, 2026
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Azure SDK Release (May 2026)

Justin Bettencourt
Azure SDK releases every month. In this post, you'll find this month's highlights and release notes.
Azure SDK Blog
Jun 22, 2026
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Meet your agent harness and claw

Wes Steyn
Part 1 of Build your own claw and agent harness with Microsoft Agent Framework. In the overview we said a "claw" is really just an agent harness: a loop around a model, wired up with tools, planning, memory, and more. In this first post we stand up that loop and give our personal...
Microsoft Agent Framework
Jun 22, 2026
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Build your own claw and agent harness with Microsoft Agent Framework

Wes Steyn
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...
Microsoft Agent Framework
Jun 22, 2026
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Models don't have preferences, they have context

Waldek Mastykarz
You open a fresh chat, type "What framework should I use for a web app?", and the model says "React." You screenshot it, share it, and write "Claude prefers React." It gets engagement. People nod along. A few reply with their own results. And now we have a consensus: Claude prefers React....
Microsoft for Developers
Jun 22, 2026
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In memory of the man who put red and green squiggles under words

Raymond Chen
Starting in Word and expanding to nearly every other word processor, and even things that aren't word processors.
The Old New Thing
Jun 22, 2026
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How to Use Deep Agents with Azure Cosmos DB – Plan, act, and verify against operational data

Abhishek Gupta
Deep Agents is an agent harness built on LangGraph, for agents that need to work through a task over many steps instead of a single LLM call. The agent runs tools, looks at the results, and uses that to pick the next one, keeping a todo list as it goes. On top of that loop the harness...
Azure Cosmos DB Blog