Project: Build a Policy Q&A Assistant for Your Team
Put the course together: a small web app that answers questions from your policy documents with sources, refuses when unsure, logs usage and stays…
Read article →AI Agents & RAG
Build AI agents and retrieval-augmented generation (RAG) systems that use your own documents and tools.
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← AI & ML
AI Agents & RAG
Build AI agents and retrieval-augmented generation (RAG) systems that use your own documents and tools.
📄 11 articles⬇️ 3 with practice files🕒 Updated 12 Nov 2026
🎓 Start here: Vibe Coding Course → 🎓 Start here: AI Agents & RAG Course → 🎓 Start here: AI for Office Work Course →Guardrails, Cost Limits and Logging for AI Agents
Guardrails, Cost Limits and Logging for AI Agents
Make an agent safe to share: turn limits, a cost ceiling, read-only tools, approval for risky actions, prompt-injection awareness and a log you can…
Read article →An AI Agent That Searches Your Documents
An AI Agent That Searches Your Documents
Turn RAG into a tool: the agent decides when to search, can search more than once with better wording, and combines document answers with…
Read article →Better Retrieval: Chunk Size, Scores and a “Don’t Know” Threshold
Better Retrieval: Chunk Size, Scores and a “Don’t Know” Threshold
Measure retrieval instead of guessing: build a small test set, compare chunk sizes, and add a score threshold so the assistant refuses when your…
Read article →RAG: Make AI Answer From Your Own Documents
RAG: Make AI Answer From Your Own Documents
Retrieval-augmented generation in plain Python: split documents into chunks, score them against a question, and send only the best chunks to the model with…
Read article →Your First Tool-Using AI Agent in Python
Your First Tool-Using AI Agent in Python
Build a working agent loop with the Claude API: define tools as JSON schemas, run the model, execute tool calls and send results back…
Read article →What an AI Agent Really Is (and When You Don’t Need One)
What an AI Agent Really Is (and When You Don’t Need One)
An AI agent is a model in a loop with tools. Learn the loop, the difference between a chatbot, a workflow and an agent,…
Read article →OpenClaw Alternatives Compared: OpenHuman, ZeroClaw, PicoClaw, NanoClaw, IronClaw and More
OpenClaw Alternatives Compared: OpenHuman, ZeroClaw, PicoClaw, NanoClaw, IronClaw and More
The OpenClaw ecosystem explained: lightweight rewrites in Rust, Go, Zig and C, security-focused agents with sandboxing, OpenHuman’s Rust agent harness, and cloud options like…
Read article →Open-Source AI Agents: OpenClaw, OpenHands, Aider, n8n and More — What They Do and How to Install
Open-Source AI Agents: OpenClaw, OpenHands, Aider, n8n and More — What They Do and How to Install
A guide to popular open-source AI agent software — OpenClaw personal assistant, OpenHands coding agent, Aider, Open Interpreter, n8n and CrewAI — with install…
Read article →Build a RAG Chatbot That Answers From Your Own PDFs and Excel Files (Complete Guide)
Build a RAG Chatbot That Answers From Your Own PDFs and Excel Files (Complete Guide)
Step-by-step guide to retrieval-augmented generation in Python: load PDFs and Excel sheets, chunk them, create embeddings, search by meaning, and answer with a local…
Read article →AI Agents and Tool Calling Explained (With a 20-Line Example)
AI Agents and Tool Calling Explained (With a 20-Line Example)
What people mean by AI agents: a model in a loop that can call tools such as search, a calculator or your database. How…
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