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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

Jun 26, 2026
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Azure Developer CLI (azd) - May and June 2026

A combined May and June recap. A new azd tool command group, the cross-platform azd exec runner, safer multi-layer provisioning, an interactive Ctrl+C cancel prompt, Go support for Azure Functions, self-contained extension bundles, per-tenant subscription filters, and a long list of correctness fixes for parallel Container Apps deploys and authentication.
Azure SDK Blog

Jun 26, 2026
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The case of the DLL that was not present in memory despite not being formally unloaded, part 2

Tying two bugs together.
The Old New Thing

Jun 26, 2026
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Passing Context Between Agents in Multi-Agent A2A Systems
Olha,
Scott
How we solved the challenge of passing conversational context between independently deployed agents using the A2A protocol's embedded context pattern, keeping domain agents stateless and secure.
ISE Developer Blog

Jun 25, 2026
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Save the Date: Pure Virtual C++ 2026

Pure Virtual C++ is back for its 7th year! Join us on July 21 for a free, one-day virtual conference for the whole C++ community.
C++ Team Blog

Jun 25, 2026
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Your agent already has a plan

If an agent isn't doing the right thing, the obvious move is to make the docs clearer. Add a tip, spell out the correct command, describe the right approach more prominently. You do all of that, and the agent still ignores it. It does what it had already decided to do. The tip wasn't...
Microsoft for Developers

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

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

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

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

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

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

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

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
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?

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

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)
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
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
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

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

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

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

Jun 22, 2026
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Retirement of Azure DevOps issuer in Workload identity federation service connections

We are announcing the deprecation of the Azure DevOps issuer in workload identity federation (WIF) service connections, with planned retirement on July 1, 2027. The Azure DevOps issuer uses the https://vstoken.dev.azure.com prefix in federated credentials. This change is part of...
Azure DevOps Blog

Jun 21, 2026
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Copilot 在 JetBrains IDE:功能更新与 Claude 作为 Agent 提供方预览

本次更新为 GitHub Copilot for JetBrains IDEs 带来了对来自 GitHub 的组织和企业级 agent 的支持,让你可以在 Copilot CLI 会话中排队和引导消息,引入了全新的 agent 调试日志摘要视图,并将 Claude 作为 agent...
Java Blog in Chinese

Jun 19, 2026
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What does it mean when the bottom bit of my HMODULE is set?

A special kind of
HMODULE.The Old New Thing

Jun 19, 2026
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Separating Deterministic Extraction from AI Inference in Industrial Summarization
When 100% of our prototype outputs were valid JSON but 0% met the data contract, we discovered the LLM was doing work that software should own. A field classification exercise and 4-pass pipeline brought schema compliance from 0% to 100%.
ISE Developer Blog