Delving into the code

TokenEconomizer: Cut Your Coding Agent Bill by Up to 30% Without Touching the Agent

Your coding agent has amnesia. Every new session, it walks into the same repo like it's the first day on the job. It types pytest, watches it fail, then remembers it should be python -m pytest. It loads twenty tool definitions it will never call. And now and

The Outbox Pattern in Orleans: The Grain Is the Relay

I honestly wasn't sure the outbox pattern belonged in an Orleans codebase. Grains are single-threaded. State writes are atomic. The runtime handles failover. Bringing in a relational-era workaround felt like admitting Orleans hadn't solved the problem, when I was fairly sure it had. Then I watched

Your Best AI Prompt Should Be a Tested Workflow, Not a Saved Chat

A saved chat isn't a team workflow "Use the prompt from that conversation. Not the first version. The one after I told it not to upgrade everything." That's a terrible dependency for a development team. I don't want a useful maintenance process

Stop Pasting Logs into AI Chat: Give Your Agent Runtime Evidence

I don't want to be the clipboard Copy a stack trace. Paste it into chat. Get a plausible explanation. Try the suggested fix. Hit the endpoint again. Copy a different stack trace. At some point, we're not using an assistant to debug. We're manually

Ten AI Agents, One Reviewer: We Automated the Wrong Bottleneck

I don't want ten agents waiting for me Ten agents writing code at once sounds productive. Ten pull requests waiting for the same person sounds like Monday. I care about the second number. If I have to reconstruct the intention behind every diff, check whether the agent solved

.NET 11 RC1: Unions Go Stable and SignalR Connections Survive Token Expiry

Microsoft just told you to ship it. .NET 11 RC1 landed on September 8 with a go-live support license. Their words, not mine: "you can confidently use this release for your production applications." So read this post differently to the preview posts. This is the stuff you'

.NET 10's Agent Framework: Build Your First Multi-Agent AI App Without the PhD

Microsoft merged Semantic Kernel and AutoGen into one Agent Framework, shipped it alongside .NET 10, and then buried the good news under docs that assume you already build agent systems for a living. I read those docs so you don't have to. Then I built the thing the

.NET 11 Preview 6: The Features Grow Up

Preview 5 brought the headliners: Runtime Async, unions, vector search. Preview 6 is where they grow up. If my breakdown of .NET 11 Preview 5's features that actually matter was about the ideas, this post is about those ideas taking production shape. Unions now serialize and show up

.NET 11's Stream Adapters: Stop Copying Buffers Around

Every .NET developer has the same reflex. An API wants a Stream, you have a string or a buffer, so you allocate a MemoryStream, copy everything into it, and hand it over. We've done it for twenty years. It's such muscle memory that nobody even registers

Stop Bloating Your System Prompts: Agent Skills for .NET Goes Stable

Your agent started with a tidy 300-token system prompt. Six months later it's 9,000 tokens. Legal added the compliance rules, Support pasted in the escalation playbook, Finance dropped the entire expense policy on top. I've watched this happen on two projects now. Nobody plans it.

Playwright in .NET 10: Reliable E2E Tests, Then Let AI Drive the Browser

I've deleted more Selenium test suites than I've shipped. Fifteen years of StaleElementReferenceException, Thread.Sleep(3000) landmines all over the codebase, and CI pipelines nobody trusted. A red build meant "re-run it" long before it meant "something's broken". E2E testing

When AI Coding Tools Actually Load Your Context Files (And What It Costs You)

You Committed the Files. Do You Know When They Load? You've set up CLAUDE.md, copilot-instructions.md, path-scoped instructions, prompt files, maybe a custom agent or two. Quick question: which of those files is sitting in your model's context window right now, on this exact request?