https://vibeprogrammer.github.io/agentprose-demo/tags/sandboxes/Recent content in Sandboxes on Agentic Engineering in Action (agentprose demo)Hugoen-USThu, 23 Jul 2026 06:32:27 +0000https://vibeprogrammer.github.io/agentprose-demo/posts/giving-ai-agents-real-computer/Thu, 23 Jul 2026 06:32:10 +0000https://vibeprogrammer.github.io/agentprose-demo/posts/giving-ai-agents-real-computer/<h3 id="how-i-built-sandcastle-on-the-new-github-copilot-provider-for-microsoft-agent-framework--and-what-the-feature-actually-unlocks">How I built Sandcastle on the new GitHub Copilot provider for Microsoft Agent Framework — and what the feature actually unlocks</h3> <blockquote> <p>▶️ Live demo: <a href="https://sandcastle.isainative.dev/">https://sandcastle.isainative.dev</a></p> </blockquote> <p>Most &ldquo;AI app&rdquo; demos boil down to the same thing: a prompt goes in, a wall of text comes out, and you still have to copy it, run it, fix the three things that don&rsquo;t compile, and host it. The <a href="https://learn.microsoft.com/en-us/agent-framework/agents/providers/github-copilot?pivots=programming-language-python">GitHub Copilot provider for Microsoft Agent Framework</a> flips that: instead of returning text about code, an agent gets a real, sandboxed computer — it can run shell commands, read and write files, fetch URLs, and call MCP servers — and it uses that computer to actually build and run the thing you asked for.</p>