https://aitechy226.github.io/posts/ Recent content in Posts on The Practical AI Builder Hugo en-us Fri, 10 Apr 2026 00:00:00 +0000 https://aitechy226.github.io/posts/gpu-infrastructure-five-calculations/ Fri, 10 Apr 2026 00:00:00 +0000 https://aitechy226.github.io/posts/gpu-infrastructure-five-calculations/ VRAM fit, quantization impact, multi-node thresholds, egress cost, and real TCO — the five calculations that determine whether a GPU deployment actually works. https://aitechy226.github.io/posts/enterprise-rag-trust-layer/ Wed, 08 Apr 2026 00:00:00 +0000 https://aitechy226.github.io/posts/enterprise-rag-trust-layer/ Four bugs found while hardening a RAG system for FSI and life sciences — and what they reveal about the gap between a working system and a trustworthy one. https://aitechy226.github.io/posts/benchmarking-ai-devices/ Sun, 05 Apr 2026 00:00:00 +0000 https://aitechy226.github.io/posts/benchmarking-ai-devices/ The vendor numbers are real. The benchmarks are valid. And the procurement question still does not have a clean answer — here is the gap I kept running into. https://aitechy226.github.io/posts/mcp-production-part-1/ Wed, 01 Apr 2026 00:00:00 +0000 https://aitechy226.github.io/posts/mcp-production-part-1/ Five transport-layer decisions — session pooling, eviction, cancel scope isolation, timeouts, and heartbeat design — each driven by a real failure in a KYC onboarding system. https://aitechy226.github.io/posts/mcp-production-part-2/ Wed, 01 Apr 2026 00:00:00 +0000 https://aitechy226.github.io/posts/mcp-production-part-2/ Bearer token auth at the transport layer, correlation IDs across four servers, lazy session init, and clean shutdown — the system-level decisions that make an MCP client deployable. https://aitechy226.github.io/posts/professional-digital-twin/ Tue, 31 Mar 2026 00:00:00 +0000 https://aitechy226.github.io/posts/professional-digital-twin/ Most professional knowledge lives in people's heads. Here's what it looks like when you structure it as an agentic system — personas, tools, skills, rules, and memory. https://aitechy226.github.io/posts/mcp-service-to-service/ Tue, 31 Mar 2026 00:00:00 +0000 https://aitechy226.github.io/posts/mcp-service-to-service/ MCP was designed as an LLM-to-tool protocol. I used it as a service-to-service layer between a LangGraph orchestrator and independently deployable integration servers. It worked — with real tradeoffs. https://aitechy226.github.io/posts/agentic-hype-vs-reality/ Tue, 31 Mar 2026 00:00:00 +0000 https://aitechy226.github.io/posts/agentic-hype-vs-reality/ A practitioner's take on the gap between agentic hype and agentic reality.