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Farhat Ullah.
AI Systems: RAG, Agents & Automation

Retrieval chatbots, lead scoring, and agent workflows that run unattended.

The deliverable manifest.

  1. 01RAG pipeline over your own documents or knowledge base
  2. 02LangGraph or n8n agent workflow for a specific operational task
  3. 03Evaluation harness to measure retrieval and generation quality
  4. 04Lead scoring or triage automation
  5. 05Vector store setup and retrieval tuning

What you get

A working AI system built for a specific task, not a demo. That's typically a retrieval-augmented generation pipeline grounded in your own documents or database, an agent workflow built in LangGraph or n8n that handles a multi-step process end to end, or an automation like lead scoring that replaces a manual triage step. Every pipeline ships with an evaluation harness — a set of test cases with known-good outputs — because an AI system that hasn't been measured against real cases is a system nobody can trust in production.

How it works

Work starts with the operational task, not the model: what decision or action needs to happen, what data it depends on, and where a human still needs to be in the loop. From there I build the retrieval or agent architecture around that task, set up the vector store and retrieval tuning if the pipeline needs one, and build the evaluation harness alongside the pipeline rather than after it, so quality gets checked as the system develops instead of at the end.

Who this is for

Teams that want an AI system that runs unattended in production — not a proof of concept that works in a demo and falls apart on real inputs. This includes businesses that want to automate a specific manual process, teams building a retrieval chatbot over their own knowledge base, and anyone who's had an AI pilot that never made it past the demo stage and wants to know why.

Questions about this service.

Do you build with AI or just about AI?
Both. AI agents are part of my actual delivery method — I run multi-agent patterns to sweep audits and orchestrate build stages — and RAG and agent systems are a core service line I build for clients.
What's the difference between a chatbot and a RAG system?
A plain chatbot answers from what the model already knows, which means it can be confidently wrong about your specific data. A RAG system retrieves relevant content from your own documents or database before generating an answer, so responses are grounded in material you control.
Can you automate a workflow we currently do manually?
Often, yes. LangGraph and n8n both handle multi-step workflows with branching logic and external tool calls, which covers most manual operational processes — the scoping question is where the judgment calls in your current process actually live.
How do you know if an AI agent is actually working correctly?
Through an evaluation harness built alongside the pipeline — a set of test cases with known-good outputs that get checked automatically, so quality is measured rather than assumed after a few manual spot checks.

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