Vignesh Athiappan
Writing

The reasoning, in public.

How the calls actually got made — break-even models, benchmarks, and build stories. Full archive at dev.to/vicky_acedia.

Architecture decisions
I Built a Knowledge Graph for a Warehouse With No Foreign Keys — deriving an ontology from the code layer.9 min Azure SQL Managed Instance vs Azure SQL Database — how I actually made the call.10 min Moving a Large Workflow Estate to Dedicated Hosting — break-even modeling, cost curves, the threshold.6 min A Secure Framework for Exposing SaaS Data to Your Data Lake — vendor data in, no holes out.6 min
AI & agents in production
From a 15-Second Chatbot to a Real Agentic Assistant — routing, decomposition, latency.9 min Turning a System of Record into an AI Agent: MCP Tools on Azure — safe tools a model can reason over.7 min Building and Deploying a Microsoft Teams Bot on Azure — End to End — the parts nobody documents.13 min We Built Our Own AI PR Reviewer — Then Benchmarked It — build-vs-buy settled with numbers.5 min
Security, observability, reliability
Security Isn't a Checklist — It's a Quarterly Habit — the per-application assessment framework.6 min App Insights by Example — a Paste-and-Run Playbook — correlated traces and readable KQL.7 min Load-Testing a Production App on Azure — what the numbers actually told me.6 min
Platform engineering & series
From Manual Deployments to YAML Templates — making release day boring, on purpose.8 min One Pipeline, Sixteen Databases — parameterised SQL deployments.5 min An AI Workspace for Outlook and Teams — One File, Zero Servers — live on GitHub Pages.5 min Design Patterns, in Plain English — an 8-part series written to teach my own team.8 posts

Everything, including the newest posts → dev.to/vicky_acedia

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