Author
Shah Fahad
Founder, Yarqat
Shah Fahad helps companies launch products and businesses of their own, and is the founder of Yarqat. He builds AI agent platforms and enterprise software — most recently iAgentify, a multi-channel AI agent platform spanning WhatsApp, voice, email, web and social.
Writing by Shah Fahad
Why Most AI Projects Fail on Data, Not the Model
The model is rarely what sinks an AI project. It is data you cannot reach, evaluation nobody defined, and demos that never survive real production traffic.
7 min readRAG or Fine-Tuning: A Practical Decision Framework
RAG gives a model knowledge it can cite. Fine-tuning changes how it behaves. Confusing the two is an expensive mistake. Here is how to choose.
8 min readHow to Evaluate an LLM System You Cannot See Inside
You cannot unit test a language model. Same input, different output, no visible logic. Here is how to evaluate one with real rigour instead.
9 min readAI Agents in Production: What Actually Breaks First
A demo agent and a reliable one are different systems. Here is what breaks in production and the guardrails that keep agents from doing damage.
8 min readPrompt Engineering Is Specification, Not Magic Words
Good prompting is not about secret phrases. It is writing a precise spec: context, constraints and examples. Here is how to do it, and where it stops.
8 min readThe Hidden Cost of Running LLMs in Production
Per-token pricing hides the real bill. The true drivers are context, retries, retrieval and evaluation. Here is what costs money and how to budget.
9 min readMonolith or microservices? Count teams, not features
Microservices solve an org problem, not a technical one. Below roughly three teams a modular monolith wins. How to tell, and how to draw boundaries.
8 min readBuild vs buy: a framework that survives reality
Buy the commodity, build the differentiator, and watch the hidden costs on both sides. A practical build versus buy framework, plus the sunk-cost trap.
8 min readWhen to modernise legacy software, and when not to
The full rewrite is the most-regretted call in enterprise software. Use the strangler fig, find the seams, and know when leaving it alone is correct.
9 min readWhat Your Cloud Bill Is Really Telling You About Design
A cloud bill that grows faster than your traffic is not a pricing problem. It is your architecture speaking in the only language finance reads.
7 min readSecurity By Design Versus Bolt-On: Why Timing Decides Cost
Whether security is cheap or ruinous is mostly decided by when you do it. Design-time choices cost hours. Retrofits cost quarters and a rewrite.
8 min readCloud Migration Risk Lives In The Cutover, Not The Platform
The destination platform is rarely what breaks a migration. The danger is in the cutover, the undocumented dependencies, and subtly wrong data.
8 min readThe Real Cost of Custom Software, Beyond the Quote
The build quote is usually the smallest number you will pay. Here is how to think about the total cost of owning custom software, honestly.
7 min readDigital Transformation Is Not Just a New Website
Real transformation changes how work happens, not just how it looks. Why most projects fail, and how to sequence one that actually delivers.
8 min readTechnical Due Diligence: What to Look For Before You Buy
Before you invest in or acquire a company, its software is an asset or a liability. Here is what a real technical due diligence actually examines.
8 min read
Tell us what cannot fail.
A technical conversation with the engineers who would do the work. If we are not the right fit, we will say so on the call.