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How to test agent skills without hitting real APIs

Your agent skill calls an API. The moment you start evaluating it, every run either costs money or mutates production data. Learn how to mock APIs transparently so you can run evals without changing your skill or hitting real endpoints.
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Jul 24, 2026
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Making an agile version of a Windows Runtime delegate in C++/WinRT, part 5

Raymond Chen
Making sure to use the non-agile delegate non-agile-ly.
The Old New Thing
Jul 24, 2026
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Native Agent Memory for Microsoft Agent Framework, Powered by Azure Cosmos DB

Theo van Kraay
Recently we introduced the Agent Memory Toolkit and the Agentic Retrieval Toolkit for Azure Cosmos DB. The Agent Memory Toolkit gives your agents durable, Cosmos-backed memory: it stores raw conversation turns and then distills them into higher-value derived memories (thread summaries,...
Azure Cosmos DB Blog
Jul 23, 2026
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The Microsoft 365 Copilot Agent’s Playbook: A Practical Livestream Series for Building Better Agents

Shavonna Jackson
Building on Microsoft 365 Copilot? Here's your playbook. Declarative agents are quickly becoming one of the most exciting ways to extend Microsoft 365 Copilot and bring organizational knowledge, workflows, and tools directly into the flow of work. But as agent capabilities...
Microsoft for Developers
Jul 23, 2026
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Move Agent Orchestration/Workflows out of Code with Agent Framework Declarative Workflows 1.0

Peter Ibekwe
Most multi-agent apps wire every flow in application code: the sequence of steps, branching, and handoffs between agents all live inside the program, making the orchestration harder to review, version, and change. Declarative workflows make that orchestration explicit. In YAML,...
Microsoft Agent Framework
Jul 23, 2026
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Build locally, ship to Azure: meet Azure SQL Developer

Carlos,
Vandana
Big news: Azure SQL Developer is here, in private preview. It's the Azure SQL Database engine, on your laptop, in a container. Build against the exact engine you run in the cloud. Ship the same code to Azure. Change one line, the connection string, and you're in production. Free for...
Azure SQL Dev Corner
Jul 23, 2026
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Making an agile version of a Windows Runtime delegate in C++/WinRT, part 4

Raymond Chen
Optimizing the context check.
The Old New Thing
Jul 23, 2026
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Smarter Spring Development in Eclipse with GitHub Copilot

Hang,
Sheng,
martinlippert
How the Spring Tools MCP Server and GitHub Copilot together make Spring Development more efficient. Introduction If you write Spring Boot applications in Eclipse, you already know that Spring Tools for Eclipse brings best-in-class tooling right into your IDE, including quick...
Microsoft for Java Developers
Jul 22, 2026
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Visual Studio Code 1.131 (Insiders)

Visual Studio Code Team
Learn what's new in Visual Studio Code 1.131 (Insiders) Read the full article
VS Code Blog
Jul 22, 2026
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Visual Studio Code 1.130

Visual Studio Code Team
Learn what is new in Visual Studio Code 1.130 Read the full article
VS Code Blog