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Highlights

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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Latest posts

Apr 22, 2026
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PIX 2604.27004-preview - support for new D3D12 Preview features, and more

Henchhing Limbu
Today we released PIX version 2604.27004-preview, which can be downloaded here. This release has initial support for the new D3D12 features, notably Batched Asynchronous Command List APIs, that was released in a preview DirectX Agility SDK today. Please visit this blog post for more...
PIX on Windows
Apr 22, 2026
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7 tips to optimize Azure Cosmos DB costs for AI and agentic workloads

Michal Toiba
AI apps and agentic workloads expose inefficiencies in your data layer faster than any previous generation of apps. You’re storing embeddings, serving low-latency retrieval, handling bursty traffic from chat and orchestration, and often operating across regions. Done right, Azure Cosmos...
Azure Cosmos DB Blog
Apr 22, 2026
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Introducing Toolboxes in Foundry

Linda,
Maria,
Ronak
Available in Public Preview Today   Toolbox is a new way to curate, configure, and reuse tools across all of your AI agents without rewiring them every time from Foundry.  Today, teams build agents across different frameworks and runtimes. Each agent often wires tools directly,...
Microsoft Foundry Blog
Apr 22, 2026
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From Local to Production: The Complete Developer Journey for Building, Composing, and Deploying AI Agents

Takuto,
jeffhollan
When we launched Microsoft Agent Framework last October, we made a promise: building production-grade AI agents should feel as natural and structured as building any other software. Today, we’re delivering on that promise — with the v1.0 release of Microsoft Agent Framework and the...
Microsoft Foundry Blog
Apr 22, 2026
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Introducing the new hosted agents in Foundry Agent Service: secure, scalable compute built for agents

Takuto,
jeffhollan,
Lakshmi
Agents are already transforming how developers solve problems. Whether it's a coding agent that refactors your repo overnight, a research agent that synthesizes hundreds of documents into a brief, or an ops agent that monitors and remediates infrastructure — the pattern is clear....
Microsoft Foundry Blog
Apr 22, 2026
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Optimizing Git policy management at scale

Azat Galiev
With just a single improvement in the REST API of Azure DevOps, we achieved a massive reduction in CPU usage and execution time when managing Git policies: 2x less CPU and 10-15x faster execution! This change is already available to all users of Azure DevOps, and it's time to share a bit...
Azure DevOps Blog
Apr 22, 2026
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Securing MCP: A Control Plane for Agent Tool Execution

Jack Batzner
The Model Context Protocol (MCP) is quickly becoming a common way for AI agents to discover and use tools. It provides a consistent interface to databases, APIs, file systems, and third-party services, which makes it easier to plug capabilities into agent workflows. However, MCP...
Microsoft for Developers
Apr 22, 2026
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Windows App Development CLI v0.3: new run and ui commands, plus dotnet run support for packaged apps

Chiara Mooney
Windows App Development CLI v0.3 is here! This release brings some of our best features yet including a full run-and-debug experience outside Visual Studio and built-in UI Automation from the command line. With v0.3, we've unlocked a whole class of agentic and automation scenarios....
#ifdef Windows
Apr 22, 2026
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Mapping the page tables into memory via the page tables

Raymond Chen
So-called "fractal page mapping".
The Old New Thing