How To

Build it properly.

Engineering-grade guides for building AI agents and systems. Each one is a complete path — architecture, step-by-step build, pitfalls, and production hardening — written for teams that ship.

Reference architectureStep-by-step buildCommon pitfallsProduction checklistFAQ + schema
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FeaturedIntegration

How to Connect an AI Agent to Slack and

Step-by-step guide to building an AI agent that reads Google Docs, answers questions in Slack, and takes actions across both — with auth, RAG grounding

Read the guide ·14 min · Intermediate · 6 steps
The stack
01Slack Bolt SDK
02Google Drive API
03OAuth 2.0
04Vector store
05LLM API
Domain02

How to Build a Conversational Voice AI Agent

Complete guide to building a production voice AI agent that qualifies inbound leads: telephony, streaming STT/TTS, qualification logic, CRM handoff

SIP/WebRTC telephonyStreaming STTLLM dialogue core+2
16 min · 6 steps · AdvancedRead ·
LLM Technique03

How to Build an AI Agent That Follows Your

How to build an AI agent grounded in your organization's knowledge with retrieval-augmented generation: corpus design, chunking, hybrid retrieval

Document pipelineEmbeddingsHybrid search+2
15 min · 6 steps · IntermediateRead ·
LLM Technique04

How to Add Citations to RAG Answers

Add RAG citations that cite sources at the span level: grounded answers with links, refusal when retrieval is empty, UI highlights, and faithfulness

Chunk offsetsClaim splitterCitation verifier+2
14 min · 6 steps · IntermediateRead ·
LLM Technique05

How to Add Memory to an AI Agent

How to add memory to an AI agent or chatbot: working, session, and long-term stores, write policies, privacy, and evals for recall that do not leak PII in

Working contextSession storeLong-term index+2
14 min · 6 steps · IntermediateRead ·
Domain06

How to Build a Code Review AI Agent

Build an AI code review agent for LLM pull request review: diff context, repo RAG, severity, CI comments, and evals scored against senior-reviewer

Git forge APIDiff packerRepo RAG+2
15 min · 6 steps · IntermediateRead ·
Domain07

How to Build a Computer-Use Agent

How to build a computer-use agent: screenshot and DOM loop, browser sandbox, write confirmations, and evals on task success — not a scripted RPA recording.

Headless browserScreenshot/DOM observerAction executor+2
17 min · 6 steps · AdvancedRead ·
LLM Technique08

How to Build an AI Agent with Function Calling

How to build an AI agent with tools: function-calling schemas, permissions, retries, write confirmations, and tracing that survives production traffic in

Tool schemasAllowlist gatewayIdempotent executors+2
15 min · 6 steps · IntermediateRead ·
LLM Technique09

How to Build GraphRAG for Enterprise Knowledge

How to build GraphRAG: when entity graphs beat chunks, extraction, community summaries, hybrid retrieval, and evals against a document-RAG baseline in

Entity extractionKnowledge graphCommunity summaries+2
17 min · 6 steps · AdvancedRead ·
LLM Technique10

How to Build Multimodal RAG

Build multimodal RAG for images, charts, and scanned PDFs: visual document retrieval, page-level embeddings, and citations that point at figures, not just

Layout OCRVisual embeddingsPage index+2
17 min · 6 steps · AdvancedRead ·
Domain11

How to Build a Text-to-SQL Agent

How to build a text-to-SQL (NL2SQL) agent: schema packing, dialect, read-only DB user, dry-run, and evals on golden queries that catch silent wrong SQL

Schema packerDialect templatesRead-only DB role+2
17 min · 6 steps · AdvancedRead ·
LLM Technique12

How to Chunk Documents for RAG

Best chunk size for RAG is measured, not guessed: structure-aware splitting, overlap, parent-child chunking, tables, and late chunking on retrieval hit

Structure-aware splitterEmbedding modelParent-child index+2
16 min · 6 steps · IntermediateRead ·
Infrastructure13

How to Deploy an LLM in a Private Cloud

How to deploy an LLM on-prem or in a private VPC with vLLM/TGI, networking, secrets, and a perimeter that keeps prompts and weights inside the network in

GPU VPCvLLM or TGIPrivate networking+2
16 min · 6 steps · AdvancedRead ·
Quality14

How to Evaluate a RAG System

How to evaluate a RAG system: golden sets, retrieval hit rate, faithfulness score, RAGAS-style metrics, LLM judges, and a CI gate that catches regressions.

Golden setHit-rate scorerFaithfulness judge+2
16 min · 6 steps · IntermediateRead ·
Domain15

How to Extract Structured Data from Documents

How to extract structured data from PDFs with AI: OCR, layout, JSON schemas, bounding-box citations, and a human review queue for invoices and contracts

OCR + layoutJSON SchemaVision LLM+2
15 min · 6 steps · IntermediateRead ·
LLM Technique16

How to Fine-Tune an LLM on Enterprise Data

How to fine-tune an LLM on your own enterprise data: when RAG is enough, PEFT vs full training, dataset design, evals, and a production adapter rollout in

Instruction datasetPEFT / LoRAEval harness+2
17 min · 6 steps · AdvancedRead ·
LLM Technique17

How to Fine-Tune an LLM with LoRA

How to LoRA fine-tune an enterprise model with PEFT and QLoRA: data format, rank, merge vs serve adapters, evals, and how to limit catastrophic forgetting.

PEFT / LoRAQLoRA (4-bit)Instruction JSONL+2
16 min · 6 steps · AdvancedRead ·
Quality18

How to Implement LLM Guardrails

How to implement AI guardrails: input and output LLM safety filters, tool allow/deny policy, NeMo Guardrails, and a measured latency budget for production.

Policy engineInput classifierOutput filter+2
15 min · 6 steps · IntermediateRead ·
Quality19

How to Prevent Prompt Injection in AI Agents

How to prevent prompt injection in AI agents: treat untrusted text as data, tool allowlists, dual-LLM checks, and evals for jailbreak attacks in

Trust boundariesTool allowlistsDual-LLM filter+2
15 min · 6 steps · IntermediateRead ·
Quality20

How to Red Team an AI Agent

How to red team an LLM agent: attack taxonomies, jailbreak testing, automated suites, severity scoring, and a fix loop that lands in evals before

Attack taxonomyAdversarial suiteTool sandbox+2
16 min · 6 steps · AdvancedRead ·
Infrastructure21

How to Reduce LLM API Cost in Production

How to reduce LLM API cost in production: routing, prompt caching, semantic cache, smaller models, batching, and CI evals so quality does not silently

Model routerPrompt cacheSemantic cache+2
15 min · 6 steps · IntermediateRead ·
LLM Technique22

How to Reduce LLM Hallucinations in Production

How to reduce LLM hallucinations in production with grounded generation, citations, refusal, and faithfulness evals — not a prompt-only trick for ML teams.

Hybrid retrievalCitation layerFaithfulness judge+2
16 min · 6 steps · IntermediateRead ·
Infrastructure23

How to Set Up LLM Observability

Set up LLM observability: trace LLM calls, monitor prompts in production, token and cost metrics, quality scores, drift alerts, and PII redaction in the

OpenTelemetry tracesToken/cost metricsQuality overlay+2
15 min · 6 steps · IntermediateRead ·

New guides are published from the same data pipeline — every entry automatically gets its page, structured data, and FAQ schema.

FAQ

Questions people ask

What are these how-to guides?

Step-by-step builds for things teams actually ask us to do — connecting an agent to Slack and Google Docs, building a RAG agent over internal knowledge, building a voice agent for lead qualification. Each one is a working build, not an overview.

Are they vendor-neutral?

The architecture is. Where we use a specific tool we say why and what the alternatives are, so you can substitute what you already run.

What level do they assume?

Comfortable with APIs and a backend language. No ML background required — none of these need you to train anything.

How long does each build take?

A working version in an afternoon; production-hardening is the longer part and each guide is explicit about what it skipped.

Will these work in production as written?

They get you a correct prototype. Each guide ends with what is missing for production — evaluation, fallback handling, permissions — because shipping without those is where teams get hurt.

Can we use this code commercially?

Yes. The snippets are there to be used. Attribution is appreciated but not required for code.

What if we get stuck?

Book a working session. If you are stuck on a step in one of these it usually takes minutes on a call to unblock.

Do you keep them updated?

Yes — APIs and model behaviour move, and a guide that no longer runs is worse than no guide. Where something has changed recently the guide says so.

Can you build this for us instead?

That is the day job. The guides exist because plenty of teams would rather build it themselves, and that is a legitimate choice.

What should we read first?

The RAG guide if you have a knowledge base, the hallucinations guide if answers invent facts, the function-calling guide if the agent needs tools. Each is self-contained.

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