https://cleenui.com/blog Field notes on licensed code footprints, the 14 production modules, .NET 8 + Azure SQL architecture, and shipping B2B SaaS in the AI era — from the architect behind CleenUI. en-us shawnlivermore@gmail.com (Shawn Livermore) Mon, 29 Jun 2026 03:51:24 GMT https://cleenui.com/og/og-blog-1200x630.png https://cleenui.com/blog https://cleenui.com/blog/what-gemini-25-pro-deep-think-means-for-engineering-teams https://cleenui.com/blog/what-gemini-25-pro-deep-think-means-for-engineering-teams Google launched Gemini 2.5 Pro with Deep Think on June 22 and immediately set records on science, math, and reasoning benchmarks. SWE-bench tells a different story. Here is what the benchmark split reveals about how reasoning models fit into a software engineering workflow. Sun, 28 Jun 2026 00:00:00 GMT Industry Commentary AI-Assisted Development Architecture https://cleenui.com/blog/fable-5-export-control-ai-infrastructure-risk https://cleenui.com/blog/fable-5-export-control-ai-infrastructure-risk On June 13, the US government ordered Anthropic to pull Fable 5 and Mythos 5 under export controls. Sixteen days later, Fable 5 is still dark. The incident is a case study in a risk class most AI integrations have priced at zero. Sun, 28 Jun 2026 00:00:00 GMT Industry Commentary Architecture AI-Assisted Development https://cleenui.com/blog/what-the-14-modules-actually-contain https://cleenui.com/blog/what-the-14-modules-actually-contain M01–M14 are not stubs. Each module runs the full stack — UI to stored procedure. Here is what a vertical slice actually contains and why it matters for the first sprint. Sat, 27 Jun 2026 00:00:00 GMT Modules Architecture .NET https://cleenui.com/blog/gartner-ai-coding-costs-2028-what-the-prediction-means https://cleenui.com/blog/gartner-ai-coding-costs-2028-what-the-prediction-means On June 24, Gartner predicted that by 2028, AI coding tool costs will surpass the average developer salary. The prediction is directionally right. What most coverage missed is what determines which side of that curve your team ends up on. Fri, 26 Jun 2026 00:00:00 GMT Industry Commentary AI-Assisted Development Architecture https://cleenui.com/blog/copilot-claude-jetbrains-model-not-the-stable-input https://cleenui.com/blog/copilot-claude-jetbrains-model-not-the-stable-input On June 22, GitHub added Claude as a selectable agent provider in JetBrains IDEs, and announced Copilot's default model switches from GPT-4 Turbo to Project Polaris in August. The model is now an interchangeable configuration. The codebase it acts on is not. Fri, 26 Jun 2026 00:00:00 GMT Industry Commentary AI-Assisted Development .NET https://cleenui.com/blog/why-vibe-coding-must-be-tethered-to-reality https://cleenui.com/blog/why-vibe-coding-must-be-tethered-to-reality Tokenmaxxing promised AI productivity. Code churn went up 861%, and Fortune declared it dead by May 2026. The pattern — fast output with no architectural grounding — is the same one playing out in vibe coding shops everywhere. Wed, 24 Jun 2026 00:00:00 GMT Vibe Coding Architecture B2B SaaS https://cleenui.com/blog/why-architecture-still-matters-for-software-engineers https://cleenui.com/blog/why-architecture-still-matters-for-software-engineers AI generates code at the syntax layer. Engineers hold the structure. Martin Fowler and Kent Beck said as much at The Pragmatic Summit in February 2026. Here is what that means in practice for a B2B SaaS build. Wed, 24 Jun 2026 00:00:00 GMT Architecture .NET AI Dev https://cleenui.com/blog/using-ai-as-a-fulcrum-to-create-software-products https://cleenui.com/blog/using-ai-as-a-fulcrum-to-create-software-products Alex Albert at Anthropic says working with Claude feels like managing a team, not using a tool. Ethan Mollick's research says AI skill is people management skill. The implication for B2B SaaS builders: if your codebase has no architectural context, the team has nothing to work from. Wed, 24 Jun 2026 00:00:00 GMT AI Dev Architecture B2B SaaS https://cleenui.com/blog/the-vibe-coding-paradox-speed-without-spine https://cleenui.com/blog/the-vibe-coding-paradox-speed-without-spine Tokenmaxxing collapsed in May 2026 when companies realized 861% code churn wasn't productivity. Martin Fowler's VibeSec Reckoning followed. The pattern is the vibe-coding paradox: optimize the speed metric, miss the outcome. Wed, 24 Jun 2026 00:00:00 GMT Vibe Coding Architecture B2B SaaS https://cleenui.com/blog/code-footprints-as-a-category https://cleenui.com/blog/code-footprints-as-a-category SpaceX is acquiring Cursor for $60 billion. The market is pricing coding infrastructure at multiples most teams don't apply to their own build decisions. Code footprints are a distinct category worth understanding before you default to starting from scratch. Wed, 24 Jun 2026 00:00:00 GMT Code Footprints B2B SaaS Architecture https://cleenui.com/blog/patch-the-planet-patching-is-the-new-bottleneck https://cleenui.com/blog/patch-the-planet-patching-is-the-new-bottleneck On June 22, Five Eyes intelligence agencies warned that AI-powered cyberattacks are months away. The same day, OpenAI launched Patch the Planet to use AI to remediate open-source vulnerabilities at scale. Here is what both mean for teams building on production software. Tue, 23 Jun 2026 00:00:00 GMT Industry Commentary Security AI-Assisted Development https://cleenui.com/blog/net11-mcp-server-template-agent-api-design https://cleenui.com/blog/net11-mcp-server-template-agent-api-design .NET 11 Preview 5 ships an MCP server template in the SDK. The scaffold is the easy part — what it exposes about your existing API surface is the more useful finding. Tue, 23 Jun 2026 00:00:00 GMT Industry Commentary .NET AI-Assisted Development https://cleenui.com/blog/what-tokenmaxxing-gets-wrong-about-ai-first-development https://cleenui.com/blog/what-tokenmaxxing-gets-wrong-about-ai-first-development Gergely Orosz named the pattern: tokenmaxxing, gaming AI usage metrics the same way teams used to game lines-of-code counts. The real AI productivity signal is what ships — and that depends on the codebase underneath the agents. Mon, 22 Jun 2026 00:00:00 GMT AI Dev Architecture .NET https://cleenui.com/blog/what-technical-due-diligence-actually-inspects https://cleenui.com/blog/what-technical-due-diligence-actually-inspects Technical due diligence on a software company follows a short list of questions. The answers either exist in the codebase or they don't — and the audit takes about 90 minutes to find out which. Mon, 22 Jun 2026 00:00:00 GMT Architecture Exit-Ready and Diligence-Ready Codebases .NET https://cleenui.com/blog/vibe-coding-with-enterprise-in-mind https://cleenui.com/blog/vibe-coding-with-enterprise-in-mind Andrej Karpathy called vibe coding 'passé' in 2026 and proposed 'agentic engineering' instead. For enterprise builders, the distinction isn't academic — it's the difference between a product and a liability. Mon, 22 Jun 2026 00:00:00 GMT AI Dev Architecture Vibe coding with Enterprise in Mind https://cleenui.com/blog/modernizing-off-legacy-dotnet-what-the-path-looks-like https://cleenui.com/blog/modernizing-off-legacy-dotnet-what-the-path-looks-like Most legacy .NET systems weren't built badly — they were built for a different era. The path to .NET 8 is defined by boundary decisions, not big-bang rewrites. Mon, 22 Jun 2026 00:00:00 GMT .NET Architecture Modernizing Off Legacy .NET https://cleenui.com/blog/miasma-worm-when-ai-coding-agents-become-the-attack-surface https://cleenui.com/blog/miasma-worm-when-ai-coding-agents-become-the-attack-surface The Miasma supply-chain worm compromised 73 Microsoft GitHub repositories in June 2026 by planting config files that execute a credential-harvesting payload when a developer opens a repo in an AI coding tool. Here is what happened and what it means. Mon, 22 Jun 2026 00:00:00 GMT Industry Commentary Security AI-Assisted Development https://cleenui.com/blog/build-vs-license-roi-the-math-that-matters https://cleenui.com/blog/build-vs-license-roi-the-math-that-matters Every B2B SaaS team faces the build vs. license question. The math looks different when you account for what actually fills the first three months from scratch. Mon, 22 Jun 2026 00:00:00 GMT Build vs. License Architecture AI Dev https://cleenui.com/blog/why-stored-procedures-dapper-dotnet https://cleenui.com/blog/why-stored-procedures-dapper-dotnet CleenUI's data layer runs on Dapper and ADO.NET against 700+ stored procedures. Here is the reasoning behind that choice and why it still holds in a .NET 8 world where alternatives are more capable than they have ever been. Sun, 21 Jun 2026 00:00:00 GMT .NET Architecture https://cleenui.com/blog/what-you-dont-have-to-build https://cleenui.com/blog/what-you-dont-have-to-build Auth, multi-tenant isolation, background processing, notifications, and a 524-endpoint API surface. Every B2B SaaS rebuilds these from scratch — unless it doesn't. Here is what ships in a licensed code footprint. Sun, 21 Jun 2026 00:00:00 GMT Pre-Built Primitives B2B SaaS