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Agent Harness: Scaling the claw or harness capabilities

Part 3 of Build your own claw and harness with Microsoft Agent Framework. In Part 2 our personal finance assistant learned to work with your data safely: it reads your portfolio, asks before it trades, and remembers what matters across sessions. It's useful - but everything it knows is...
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Don't rewrite your CLI for agents

There's advice making the rounds: replace your CLI args with a single --json payload so agents can use your tool more effectively. The thinking being, that agents already think in structured formats, and nested data maps cleanly to JSON. Flat args on the other hand, force awkward...
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Apr 20, 2026
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Discoverable - Observable MCP Server

Colin Desmond
How to build an observable MCP Server with discoverable tools and agents.
ISE Developer Blog
Apr 17, 2026
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Forgotten message from the past: LB_INIT­STORAGE

Raymond Chen
Preallocating memory to avoid quadratic behavior.
The Old New Thing
Apr 16, 2026
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Best of Both Worlds for Agentic Refactoring: GitHub Copilot + MicroVMs via Docker Sandbox

cindywang
Legacy codebases frequently contain hardcoded logic and complex build scripts that depend on specific filesystem structures, making them notoriously difficult to modernize in isolated environments. Docker Sandbox addresses this challenge through a bidirectional workspace sync that...
All things Azure
Apr 16, 2026
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What's New in Microsoft Foundry Fine-Tuning | April 2026

Blanca Li
April 2026 brings three major Reinforcement Fine-Tuning updates: Global Training for o4-mini with lower per-token rates across 12+ regions, new GPT-4.1 model graders for richer reward signals, and a comprehensive RFT best practices guide to help you ship specialized models faster.
Microsoft Foundry Blog
Apr 16, 2026
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Free Your Terminal with Detached Mode in Aspire 13.2

James Newton-King
Aspire 13.2 brings detached mode to the CLI. Run your AppHost in the background, free your terminal, and let coding agents start, inspect, and manage your app without blocking.
Aspire Blog
Apr 16, 2026
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From AI to .NET: 20 VS Live! Las Vegas Sessions You Can Watch Now

Jim Harrer
In March 2026, developers came together at VS Live! Las Vegas for a full week of technical learning, hands-on exploration, and a lot of great conversations about where software development is headed next. From AI-assisted development to modern .NET, cloud-native apps, and developer...
Visual Studio Blog
Apr 16, 2026
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What's up with window message 0x0091? We're getting it with unexpected parameters

Raymond Chen
Trespassing on system messages.
The Old New Thing
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