RAG | Muhammad Hassan Raza

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Obelisk

Obelisk is an AI-powered marketing platform that helps teams create content with brand consistency. It orchestrates specialized AI agents for SEO, email marketing, brand voice analysis, and strategy, all within a multi-tenant SaaS architecture with space-level isolation. Tech Stack: FastAPI, LangGraph, PostgreSQL, Vertex AI, Redis, Google Cloud Source: Private (commercial product) · Book a call to discuss My role: Team product at Entropy Labs. I led product and backend work around agent orchestration, retrieval, checkpointing, guardrails, and multi-tenant runtime behavior. ...

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LangChain in Production: What the Tutorials Don't Tell You

Every LangChain tutorial ends right where the real work begins. You see a neat 50-line script that queries a PDF, and you think, “Cool, I’ll ship this by Friday.” Three weeks later, you’re debugging memory leaks, wondering why your chain silently returns empty strings, and questioning every decision that led you here. I’ve shipped LangChain-based features to production at multiple companies. Here’s what I wish someone had told me before I started. ...

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::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::c:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::c::c:::c:cc:::::c::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::c:cccccccccllodddddxdOxxxxxkxxxxkOxxdxddddoollcccccccccc:::c:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:::::::::::::::::::::::::::::::::::::::::::::::ccc:::::c:c:c:cccccccclododdk0kkxxxdxddox0kOdkokoOoxoddOdOoOdOxkkKOOxxddlccccccccccccccccccccccc::c::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:::::::::::::::::::::::::::c::::c:::ccc:c:cc:ccccccccccccccccclddddxxxddoookOxxddoddolokkkOdkdkxxdxdxxkxxxxxxxdkOkOxOxxOkkkOxdlcccccccccccccccc::ccccccc::cccc:c::::c:c::cc:c:::::c:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::::ccc::c:cccc:::cccc::ccc:ccccccc:cccccccccccccccccccccloooxlkOxddolocccxO0OOxOdkdolkOkkKO0x0kxxkxOOKO0OOKkxkOk0kOdkdxxOoO00kkxdoccccccccccccccccccccccccccccccccccccccc:ccccccccccccc:::::c::c:c:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
ccccccccccccccccccccccccccccccccccccccccccccccccccccoooddooloclkOOxxxdoclcdOk00kkxxokdkOkkKx0x0kkkxxK000OKk0kOdK0XOK00KO0dxO0kkkOxOkxkxocccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc:::c::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
ccccccccccccccccccccccccccccccccccccccccccccccccclllxkdoolc::llkk0OkxdlooolOx0O0xkxkkxkOkOKk0O0OOOxOKKOKOKOKOdOKKKKOXOXOOxKKX0OOdxkOd00OOxdlcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc:c:cc::c::::::::::::::::::::::::::::::::::::::::::::::::::
ccccccccccccccccccccccccccccccccccccccccccccclllllcolxkdolclclloOx0Oxdodxdokx000Okk0OOOKk0000O00O000XXKX00XKOx0KNKXK0XOKxO0XKXKKXKKkx00O0kkkxdlcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc:cc:ccccccc:ccccc::::::::::::::::::::::::::::::::::::::::
cccccccccccccccccccccccccccccccccccccccccclllcccc:ccxlOOolodollckdk0OddxOOkOkkKO0kxxddkdOxxxkdxOkddkOkxxkOOkkOOKKKKXXXK0OKXKNKKKKKO0XXKOxxO0Od0Kkocccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc:c:c:cc:::::::::::::::::::::::::::::
ccccccccccccccccccccccccccccccccccccccccl:ollc::clloxolkkoddddolxxx00OxddooxoOOOkkxxdokkOxkxxdxxkkx0KkOOOkOkxxkKkOOdkxkX0XNNXXXXKO0XXXNXXKkkOkKX0kxocccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc:c:::c::::::::::::::::::
cccccccccccccccccccccccccccccccccccccc:::::dlcccllllkllcdOxxxxxxOdlOOkkddolkoOxO0OOxxdk0kkOOkxkkxOO0KOK0K0kkk00K0kOkxxx0kxxOO0XKK0XNXXXXXXXKk0O0K0kxxdlcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc:ccc:cc:::c::::::
ccccccccccccccccccccccccccccccccccccc:::::::lc:cclloxlcclk0kxdllddlOdOOOdodkdxd0O00kkxOKkOOOkxkOkkOKXKK0k0kx00K0K0K0OxK00Ok0xxdd0XKNWNXXXX00XNXKkk00kk0Oocccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc:::
ccccccccccccccccccccccccccccccccxdlcccc::::::cocclllxocldodOkoolokokokOOkdxOOxdk0O00kkKkk0OkOOOOOOOKXKKKOkOkKK0K0OK0k00X00KKK0xk00kkOKXNN0KXNNXXXKOkO00kOdcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
ccccccccccccccccccccccccccccccc;;doooocccc::::codoooxclolllk0koddkxoookkOOxO0ddd0OO0OOKkOOOOOOOkxxkKKOOOKKOOKX0O000O00K0K00000OKXKOxKOkx0XNXNNXNNNX000KKxkklcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
ccccccccccccccccccccccccccccc:;;;;dllcoooc::::coxkclxllkoooldk0xdkOolooOkkOOKxox00kOxKk0OOO0kxddook00kkxxxOOOKKK000OKXKXK0OKO0KXXXXKKkkkXX0KNWNNNKKXNKkOXOxOxllccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccccccccccccccccccccclcclc;;;;;;;:d:::clollcc::ldocxokdooolldxkxOOllodkOxk00xxxdkkkxkOkdkkxkkkxxdkK0kkOxxd0k0kKOOK00KXX0KO0OXXXXKXKKOON0OK0kOXNXXNNNNXOkXO0XKlccclclccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccccccclcclcclcccclclllc:oc;;:::;;:x::coolcooocclxlkddoolloooxkkO0dxxddxkxxkdoookxxxxldkOOxxdOOkxkK0OkxxdOxxxO0OkkK00O0OOOKKXNXXXKK0XNX0OkKKk0KKNWNNNNNK0KXXkkllllllllcclccllcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
llllclllllllcclllllllllc;,;cc:;::::::d::odccllcodoldOOxddkxxdlclod0kdooxokdxOdllldkxxddxxdkOOkxxxd0XOkOOkx0O000kdxkOxkkk0k00O0KXN0OKXXXKXNXX0OXK00NWNNNXKKOXXOxklllllllllllllllllllllllcllllcccccccccccclccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
llllllllllllllllllllll:,,;;:o:::;:::;ld::d:c::::clllxodooclccloloxoxxxxdodOkkOolookxddookxOxxkOkkxKXO0O0O00K00kxx000kOkxdkO0KK0OOOOXXXXKNNX0XKKKXOOXXKKKXNNO0XxkOolllllllllllllllllllllllllllllllllllcllllllllccclllcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
llllllllllllllllllllc:,,;;;;;l:clc;:::oo:ol::c::::lo:olclllllloloodlolkkxdx0kOxoldxxllooxkkkxdoooOXNK0OOOKKOKOxx000OKOOxkOOOxkkkO0K0O0KXXXXXNXWKKX0OXNXXNNNXk0KKN0lllllllllllllllllllllllllllllllllllllllllllllllllllllllllclllllllcclcccccccccccccccccccccccccccccccccccccccccccccccccc
lllllllllllllllllllc:;,,;;;;;;c:;coo;::docl:::cccoc::collddclldoollxoddooxkOOk0xdkxxddddkdokddoookO0kkkkkkO0O0k00OO0KKkOOKKKOOO0OkOOkddKKKXKXNNK0OOXKOXWWNWNN0NNOkolllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllcccccccccccccccccccccccccccccccccc
lllllllllllllllllll;,;;;;;;;;;;::;;lol::dll::::ldl:::ccoccldoodolllldxxddxxO0OkxOkooddxkddxdkooloOO0xxxxOkOkOO0OOOO0000K0KXK0O00KKOOOxxkx0KKX0K00K0OKOkXWNX00XKXOxxllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllclccccccccccccccccccccc
llllllllllllllllll:,,,;:;:;;;;;;;;;:d:ll:xkc::dd::::;::clc:cxkdooooddxolokxxdooxOdooooldkxdddxdlo00OxkkkkkOkxkk0O0OkkKKKK0K0KX00XX0000kkOx0K00NXKXX00K0XNKKNXWkO0xkdllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllcccccc
lllllllllllllllllc,,,;;;l;;;:::,,;::xc:::c0dcoc::::::::::c::lokdddoooddodooxlooxdkxooollodddddxldKK0OOO0OkkkkkkkkkkOO00OOOO0KKKKNXKKOKXkkKK0O0XNXXNNK0KKXXNNWNX0KKN0llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
llllllllllllllll:;,,,;;;;lc;;:c:;;;::o:;;:lOkdddooolllolllllxdddddolooxdooddookddodkkolllloxkkkxx0KKKXKOkkkOO0OOkOOkx0Oxk000kkOO0K0OK0OkKKK0kkKKNNNX0XKKkKNNNNK0XKkxllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
llllllllllllllll:,;;;,,,;;:;;,,:;:c:c:;;;;cll::::;:::::::cccoc:cooxolldxooxdookoddxkOO0xxdddoocdxNKOOOO0K00KXK000kkkk0kxkOOOOk0O0k0000KKOkKKkxONXX0XNN00x0NX0000KOxxolllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
olllllolllolooll;',;;;;;,,,;;;;;:;:lloc;;c:;ld:::::c;;;;c::ccll::lcdxllxdkxxkkOkkxxOxxdOkdloloxxOXKkkkOO000OXXXXK0k0000O00OkOkkXddkOKKXXN0O0K000XXXNKXX00NNXXKNO0kxkooooooooooollllollllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
oooooooooolloooc,,,;;;,;;;;;';;;c;;;;:dc:;;;:ol:::;:c::c::::::coc:lclOOkdxxkxkdddxxOOxxxdxkoxkxxKXKKkxk0000K0OOOO00K00XKKK0kxxXO0xdkKX00K0kOkOxd00K0NXO0XKKKNXN000XKoooooooooooooooooooooooolooooooollolllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
ooooooooooollll:,',,;;;;,,:;;;:l;:;;;;:ooc:;;;:c::;;;:c:lllc::::ll:dlodxxxdokxdoddddOooclok00Oxx0XKNX0xO0OOKK0OOOkkkxkXKXXO00Kkkkk0OkKK00OkxxkkxOXKK0KKKKOONXNKOXXkdoooooooooooooooooooooooooooooooooooooooooooooolooooolllloollllllllllllllllolllllllllllllllllllllllllllllllllllllllll
ooooooooooooooo:,,,,,,;;;;,,,:ccc:;;;c;,;;::::;lc;;;::::::::::::;cdllcxokXNO0kkxollcoklkO00OO0OkkXXWNNX0odO0xdxOO000O00OOXKOOOkk0K0OkOK0000OO0kOk0KKKNKkKkXN00OOKxxoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooloooooooolllllolllllllllllllllllllllllllllllllllllll
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oooooooooooooooc;,,,;;;;;;,';,,,,;:c:;cclc::c::;:cllc::::::::;:cc:::cldkkXKK0O0NNNX000xKN00OOOk0KKK0WMMWNNXNNWWWWWNNNKKkXOX00K0OkdkkOkxOOOkOkk0K0O0XXKkKKKK0XXOkOOddddooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooolllolllllllllll
ooooooooooollooc:',,,;,;;;';,;,,;;,:c',;;;;;;;;;:;;c;:llloollooc:;;::;cxKXKNWMNXXXNW0XOKK0OOO0koxOxxONNWWWXWMMMMMMMMMWKXXXK00K0kkxxOOxd0K0OK00kOOkk0OKXN0OKKKO0kxdoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooool
ooooooooooollool:;,,;;;;;;,,;;,;;,,;lc,,,,,,,,;;,;;:l;;;;;;;ccdkdolc:;;lod0NWXXXXNK00KO0KOOkOklloKoloONWWNNNNNNWWMMMMMXNXXK000O0OkkO00O0XKOOkO0kOK00K0Ox0XK0Okxddooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
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Building a Smarter FAQ Bot (with Gemini, RAG, and Structured Output)

Introduction If you’ve ever found yourself digging through product manuals, company wikis, or lengthy documents just to find a simple answer, you know the pain. The fact you’re reading this suggests you’re interested in how Generative AI can make that process less painful. Stick around for a few minutes, and I’ll walk you through how we built a smarter FAQ bot using Google’s Gemini API, Retrieval Augmented Generation (RAG), and structured output. This isn’t just another chatbot; it’s designed to give reliable, context-aware answers based only on provided information, minimizing the risk of making things up (hallucination). This example uses Google Car manuals, but the principles apply anywhere you have a set of documents you need to query effectively. I’m sharing my journey building this; it’s a practical demonstration, not a definitive guide, so adapt the ideas to your needs! ...