AI & Agentic Engineering Lessons
146 free, interactive lessons — pick one to read instantly, browse by guide, or generate your own.
Agents
- What Is the Model Context Protocol (MCP)?
The Model Context Protocol (MCP) is an open standard, introduced by Anthropic in November 2024, that lets AI applications connect to external tools and data through one uniform interface. Instead of writing custom integration code for every
- AI Voice Agents: Build a Voice Assistant
An AI voice agent is a system that listens to a user's speech, reasons about it with a large language model, and replies in a natural-sounding voice in real time. You build one by chaining speech-to-text (STT), an LLM, and text-to-speech (T
- Function Calling / Tool Use in LLMs
Function calling, also called tool use, is a capability that lets a large language model request that your code run a specific function — such as a weather lookup or a database query — and then use the result in its answer. You describe eac
- Intelligent Agents in AI: Types & Examples
An intelligent agent is a system that perceives its environment through sensors and acts on it through actuators to achieve goals. In classical artificial intelligence, intelligent agents are grouped into five types by how they decide: simp
- Model Context Protocol (MCP) Tutorial
This Model Context Protocol (MCP) tutorial builds a working MCP server that exposes a tool to any MCP client, such as Claude Desktop. Using the official Python SDK's FastMCP helper, you create a server, decorate a function with @mcp.tool()
- What Is an AI Agent?
An AI agent is a software system that uses a large language model (LLM) as its reasoning engine to pursue a goal over multiple steps — it decides which action to take, calls tools or APIs to act on the world, observes the result, and repeat
- Autonomous AI Agents Explained
An autonomous AI agent is a system that perceives its environment, decides what to do, acts, and loops — pursuing a goal without step-by-step human instruction.
- AI Agents vs Agentic AI: The Difference
AI Agents and Agentic AI describe related but distinct ideas — one names a specific architectural pattern, the other describes a spectrum of autonomous behavior — and confusing them leads to mismatched tool choices and poorly scoped systems
- AI Coding Agents: How They Work
An AI coding agent is a language model wired into a reasoning-action loop that lets it plan, write, execute, and iteratively fix code to complete a programming task autonomously.
- The Agent Loop
Understand observe, decide, act, and update as the spine of tool-using agents.
- Planning and Reflection
Know when planning helps agents and when it only adds latency.
- 10 Real AI Agent Examples
Real-world AI agents share a common perceive-reason-act loop but differ sharply in tools, memory, and orchestration patterns depending on their domain.
- Agent Memory
Separate thread state, long-term memory, and retrieved knowledge.
- Browser and Computer-use Agents
Understand pixel, browser, and DOM action loops plus their safety limits.
- Agent Memory in LLMs
Agent memory is the set of mechanisms that let an LLM-based agent persist, retrieve, and act on information beyond a single context window — enabling continuity, personalization, and improving decision-making across interactions.
- Open-Source AI Agents: Top Frameworks
LangGraph, CrewAI, AutoGen, LangChain, LlamaIndex, and the OpenAI Agents SDK each solve a different slice of the agentic problem — picking the right one means matching its control model, multi-agent style, and data story to your use case.
- Agent Safety and Sandboxing
Limit blast radius with permissions, sandboxes, approvals, and traces.
- AI Marketing Agents
AI marketing agents are autonomous LLM-powered systems that plan, execute, and iterate on marketing tasks — from content creation to campaign optimization — by combining reasoning loops, tools, and multi-agent coordination.
- Claude AI Agents: Build with Claude
Build functional AI agents with Claude by wiring the Messages API into an agentic loop, defining tools, and composing multi-step workflows that plan, act, and observe until a goal is complete.
- Durable Agents with Workflow Engines
Use durable execution when agent work must survive retries and crashes.
- How to Build an AI Agent (From Scratch)
An AI agent is an LLM wired into a perception-decision-action loop with tools, memory, and error handling — build each layer in order and you have a working agent from first principles.
- Human-in-the-loop Agents
Add approvals, review, and correction points to agent workflows.
- Model Context Protocol
Use MCP to expose tools, resources, and prompts through a shared protocol.
- Multi-agent Orchestration
Split work across specialists only when isolation creates real value.
- No-Code AI Agents: Build Without Coding
You can build, connect, and deploy functional AI agents using visual no-code platforms — without writing a single line of code — by configuring triggers, actions, and integrations through drag-and-drop interfaces.
- Tool Use and Action Boundaries
Design narrow, auditable tools that agents can call safely.
- Build AI Agents in Python
A functional Python AI agent combines an LLM, a tool-calling loop, and state management into an autonomous system that decides what to do next at each step.
- Building AI Agents: Step-by-Step
Build a functional AI agent from scratch by wiring together an LLM, tools, a reasoning loop, and memory — then harden it with error handling and deploy it with confidence.
Build Projects
- Add Memory to an Agent
Add thread state and long-term memory without confusing memory with facts.
- Add Observability with Langfuse
Trace model calls, retrieval, tools, scores, and costs end to end.
- Build a Tool-Calling Chatbot
Define functions, execute calls safely, and return tool results to the model.
- Deploy an Open Model with vLLM
Serve an open model with batching, streaming, and production checks.
- Serve a Local LLM with Ollama
Run a local model API and connect it to a simple app workflow.
- Build a Document Q&A Bot
Assemble ingestion, retrieval, prompting, citations, and answer validation.
- Build a RAG App with LangChain
Wire loaders, retrievers, prompts, and model calls into a grounded Q&A flow.
- Build a RAG App with LlamaIndex
Load docs, index chunks, query with sources, and evaluate retrieval.
- Build an Agent with LangGraph
Create a stateful tool-using agent with nodes, edges, and checkpoints.
- Build an Evaluation Harness with promptfoo
Turn prompts and expected behavior into repeatable tests.
Evaluation
- LLM Evaluation: Metrics & Frameworks
LLM evaluation is the practice of measuring how well a large language model or an LLM app performs, so you can compare versions and catch regressions instead of guessing. It combines reference-based metrics (exact match, semantic similarity
- Benchmark Literacy with HELM
Read public benchmarks without confusing them for product evals.
- LLM-as-Judge
Use model graders carefully for open-ended quality assessment.
- AI Evaluation Foundations
Turn quality from opinion into repeatable checks, traces, and datasets.
- Building Golden Datasets
Create reusable examples from real failures and representative user questions.
- Evaluating Agentic Workflows
Score multi-step agents by task success, tool safety, cost, and trace quality.
- Observability with Langfuse
Trace prompts, retrieval, tools, costs, and scores for LLM apps.
- Prompt Regression Testing with promptfoo
Run prompt and model tests in CI before release.
- RAG Evaluation Metrics
Measure context recall, faithfulness, answer relevance, and citation quality.
- Red Teaming LLM Apps
Probe prompts, tools, retrieval, and policies before users do.
- Tracing with OpenTelemetry and OpenLLMetry
Use standard telemetry for model calls, tools, retrieval, and evals.
Foundations
- How Does AI Work?
AI works by learning patterns from data instead of following hand-written rules. During training, a model adjusts millions of internal numbers (parameters) until its predictions match known examples; during inference, it applies those learn
- Types of AI (ANI, AGI, ASI)
AI is usually grouped into three types by capability: Artificial Narrow Intelligence (ANI), which does one task well and is all the AI that exists today; Artificial General Intelligence (AGI), a hypothetical AI matching human ability across
- Clustering and Dimensionality Reduction
Clustering and dimensionality reduction are the two workhorses of unsupervised learning. Clustering groups unlabeled data points by similarity — k-means and hierarchical clustering are the classics. Dimensionality reduction compresses many
- Embeddings as Learned Representations
An embedding is a dense vector of numbers that a model learns to represent something — a word, an image, a user — so that similar things get similar vectors. Instead of hand-coding features or treating categories as arbitrary IDs, a model l
- Feature Engineering and Pipelines
Feature engineering is the work of turning raw data into the inputs a model can learn from — encoding categories, scaling numbers, handling missing values, and creating informative new features. Pipelines package those steps with the model
- How Models Learn: Gradient Descent and Loss Functions
Nearly every machine learning model learns the same way: a loss function scores how wrong its predictions are, and gradient descent repeatedly nudges the model's parameters in the direction that reduces that loss. The loss defines the goal,
- Neural Networks and Backpropagation
A neural network is a stack of layers of simple units that each compute a weighted sum of their inputs and pass it through a non-linear activation, letting the network learn complex patterns. Backpropagation is the algorithm that trains it:
- Supervised, Unsupervised, and Reinforcement Learning
Machine learning splits into three main paradigms defined by the feedback a model gets. Supervised learning trains on labeled examples to predict a known answer. Unsupervised learning finds structure in unlabeled data, such as clusters or c
- The Classic Machine Learning Model Zoo
Before neural networks dominated, machine learning ran on a small zoo of classic models — linear and logistic regression, decision trees, random forests, gradient boosting, support vector machines, k-nearest neighbors, and naive Bayes. Each
- Train, Validation, and Test Splits
Learn why clean evaluation starts before model training.
- AI vs ML vs Deep Learning
Understand the nested map of AI, machine learning, deep learning, and where agents fit.
- Overfitting and Bias-Variance
Diagnose when a model memorizes, underfits, or generalizes.
Frameworks
- What Is LangGraph?
LangGraph is a low-level orchestration framework that models agentic AI applications as a stateful graph of nodes and edges, enabling cycles, branching, persistence, and human-in-the-loop control that a plain agent loop cannot provide.
- AutoGen and AG2 Multi-Agent Patterns
AutoGen (and its community fork AG2) is a framework where multiple agents solve a task by exchanging messages, and its power is in the conversation patterns you compose. The core patterns are two-agent chat, group chat with a manager that p
- AutoGen Multi-Agent Tutorial
AutoGen is Microsoft's open-source framework for building applications where multiple AI agents converse with each other and with tools to solve a task. You create agents — such as an AssistantAgent that reasons and a code-executing agent —
- Building Agent Apps with LangChain
LangChain is a framework for building LLM applications from composable pieces — models, prompts, tools, retrievers, and memory — wired together into chains or agents. A chain runs a fixed sequence of steps; an agent lets the model choose to
- Building Agents with Claude Tool Use
Claude, Anthropic's family of models, builds agents through tool use: you describe tools with a name, description, and input schema, and Claude replies with structured tool-use requests your code executes and returns. Running this in a loop
- Choosing an AI Agent Framework
Choosing an AI agent framework comes down to how much control versus abstraction you want, and whether you need a single agent or a coordinated team. Low-level frameworks like LangGraph give explicit control flow; lightweight ones like the
- CrewAI: Multi-Agent Crews
CrewAI is an open-source Python framework for orchestrating teams of role-playing AI agents that collaborate to complete a task. You define Agents (each with a role, goal, and tools), Tasks (a description plus the expected output), and a Cr
- Designing Role-Based Agents in CrewAI
In CrewAI, the quality of a multi-agent crew depends less on the framework than on how you design each agent's role. An agent is defined by a role, a goal, and a backstory, which together act as a focused system prompt, plus the tools it ca
- Google ADK and Gemini Tool Calling
Google's Agent Development Kit (ADK) is an open-source framework for building and deploying agents on top of Gemini, Google's model family, though it works with other models too. Its foundation is Gemini function calling: you declare functi
- LangGraph in Depth
LangGraph is an open-source framework from the LangChain team for building stateful, multi-step LLM applications as graphs. You define nodes (functions that read and update a shared state), edges (which node runs next), and conditional edge
- LlamaIndex Agents and Workflows
Beyond retrieval, LlamaIndex builds agents that reason over your data and Workflows that orchestrate multi-step processes. A LlamaIndex agent wraps a model with tools — often query engines over your indexes — so it can decide what to look u
- LlamaIndex vs LangChain for RAG
LlamaIndex and LangChain are two open-source Python frameworks for building retrieval-augmented generation (RAG). LlamaIndex is a data framework focused on ingesting, indexing, and querying your documents, so retrieval-centric apps come tog
- Semantic Kernel Overview
Semantic Kernel is Microsoft's open-source SDK for embedding large language models into conventional applications, with first-class support for C#/.NET as well as Python and Java. It centers on the kernel, a container that holds plugins — r
- The OpenAI Agents SDK
The OpenAI Agents SDK is a lightweight Python framework for building agents with a small set of primitives: an Agent (a model plus instructions and tools), tools it can call, handoffs to pass control to another agent, guardrails to validate
- What Is LangChain?
LangChain is an open-source framework that gives you a common application layer — models, tools, memory, and chains — so you can build LLM-powered apps without rewriting the same plumbing for every provider or use case.
- LangChain vs LangGraph: Which to Use When
LangChain is the right default for most LLM applications — chains, RAG, and simple agents — while LangGraph is the right choice when your control flow itself is the product: branching, resuming, interrupts, and explicit state transitions.
- CrewAI Tutorial: Role-Based Agents
Build a working multi-agent CrewAI crew by defining role-based agents, assigning tasks, and wiring them into a sequential or hierarchical workflow that produces a real output.
- LangGraph Studio: Visual Agent Debugging
LangGraph Studio is a local visual IDE that lets you connect a running LangGraph agent, step through its graph execution node by node, inspect live state, and pinpoint failures without adding print statements.
- n8n AI Agents: Automate Workflows
Build and deploy AI-powered workflow automation by wiring n8n's agent node to LLMs, tools, and error-handling patterns — turning a visual canvas into a production-ready autonomous pipeline.
- Using LangChain for RAG
LangChain's document loaders, vector stores, LCEL chains, and LLM integrations give you a composable pipeline to build a production-ready RAG system that answers questions grounded in your own documents.
Generative
- AI Image Generation Workflows
AI image generation is more than typing a prompt: real work uses a handful of workflows. Text-to-image creates an image from a description; image-to-image transforms an existing picture; inpainting edits a masked region; and outpainting ext
- Diffusion Models Explained
A diffusion model generates images by learning to reverse a noising process. During training it takes real images, adds random noise in small steps until they are pure static, and learns to predict and remove that noise. To generate, it sta
- Multimodal Prompting
Multimodal prompting is the craft of combining images (or other media) with text instructions to get the most from a vision-language model. The same principles as text prompting apply — be specific, give examples, ask for a format — plus vi
- Responsible Generative Media
Responsible generative media is the practice of creating and deploying AI-generated images, audio, and video in ways that avoid harm. The main risks are deepfakes and misinformation, non-consensual or infringing content, and amplified bias.
- Speech Recognition with Whisper
Whisper is an open speech-recognition model from OpenAI that transcribes audio into text and can translate speech into English. It is a transformer trained on a very large, diverse set of audio paired with transcripts, which makes it robust
- Stable Diffusion and Latent Diffusion
Stable Diffusion is a latent diffusion model: instead of denoising in pixel space, it runs the diffusion process in a compressed latent space, which is what makes high-resolution image generation fast enough to run on consumer GPUs. Its thr
- Text-to-Speech and Audio Generation
Text-to-speech (TTS) turns written text into natural-sounding spoken audio, and modern neural TTS is realistic enough to be hard to distinguish from a human. It typically works by converting text into an acoustic representation and then int
- The Hugging Face Diffusers Library
Diffusers is Hugging Face's library for running and building diffusion models like Stable Diffusion in Python. Its central abstraction is the pipeline, which bundles a model's components — the denoising network, the VAE, the text encoder, a
- Video Generation Concepts
AI video generation extends image diffusion into time: a model generates a sequence of frames from a text prompt (or a starting image), and the central challenge is temporal consistency — keeping objects, motion, and style coherent across f
- Vision-Language Models
A vision-language model (VLM) is a model that understands images and text together, so you can show it a picture and ask questions in natural language. It works by pairing a vision encoder that turns an image into features with a language m
Infrastructure
- Deployment Patterns for AI Apps
Deploying an AI app means putting a model-backed service into production reliably and affordably. The core patterns: separate the model-serving layer from your application logic, keep the app stateless so it scales horizontally, handle slow
- Embedding Pipelines at Scale
An embedding pipeline turns a large, changing corpus into vectors in a search index, and at scale it becomes an engineering problem, not a one-off script. The core concerns are batching embeddings for throughput, updating incrementally as s
- GPUs, TPUs, and AI Hardware
AI runs on specialized hardware because training and inference are mostly massive amounts of matrix multiplication that can be done in parallel. GPUs have thousands of cores built for exactly this, which is why they dominate AI; TPUs are Go
- Model Gateways with LiteLLM
A model gateway is a single service your apps call instead of talking to LLM providers directly. It gives you one unified API across many providers, plus central control: routing, automatic fallbacks, rate limiting, cost tracking, caching,
- Model Registries and Versioning
A model registry is a central catalog that tracks trained models, their versions, metadata, and lifecycle stage (like staging and production). Versioning treats each model as a numbered, immutable artifact with a record of how it was made —
- Monitoring Models: Drift and Quality
A model that performed well at launch can silently degrade because the world changes — a problem called drift. Monitoring watches production inputs and outputs to catch this early: data drift (the inputs shift), concept drift (the input-to-
- Optimizing Cost and Latency in LLM Apps
Cost and latency in an LLM app come mostly from tokens and model choice, so the biggest wins are picking the smallest model that does the job, cutting unnecessary tokens, and reusing work with caching. Prompt caching reuses a repeated prefi
- Running Hugging Face Transformers in Production
The Hugging Face Transformers library is the standard way to load and run open models in Python, pairing a tokenizer with a model behind a simple API. It is excellent for prototyping and for non-LLM models, but for high-throughput LLM servi
- Running Local Models with Ollama
Ollama is a tool that lets you download and run open-weight large language models on your own computer with a single command. Running locally keeps data private, removes per-token API costs, and works offline, at the price of your own hardw
- Serving LLMs at Scale with vLLM
vLLM is an open-source inference server that makes self-hosted large language models fast and cost-efficient at scale. Its two key techniques are PagedAttention, which manages the attention key-value cache like virtual memory to eliminate w
LLMs
- How Do LLMs Work?
A large language model (LLM) works by predicting the next token — a word or word-piece — over and over, given all the text so far. It was trained on vast text to learn these patterns, storing them in billions of parameters. Generating one t
- Prompt Engineering Explained
Prompt engineering is the practice of designing the text instructions given to a large language model so it produces accurate, useful, and consistent outputs. A strong prompt usually sets a role, a clear task, relevant context, examples, an
- Transformer Attention Explained
Attention is the mechanism inside a transformer that lets the model weigh how much each token in the input should influence every other token when building meaning. For each token, attention creates a query, key, and value vector, scores th
- What Is Generative AI?
Generative AI is a class of artificial intelligence that creates new content — text, images, audio, video, or code — by learning patterns from large amounts of training data and then producing original outputs that resemble it. Models like
- Fine-Tune an LLM with LoRA
LoRA (Low-Rank Adaptation) is a parameter-efficient fine-tuning method that adapts a large language model by freezing its original weights and training small low-rank matrices injected into its layers. Because it updates only about 0.1 to 1
- Function Calling and Tool-Use Patterns
Function calling lets a large language model request that your code run a defined function and then use the result, turning a text generator into something that can fetch data and act. Beyond the basic round trip, real systems rely on patte
- How Large Language Models Work
A large language model works by turning text into tokens, converting those tokens into vectors, passing them through many transformer layers that use attention to build context, and predicting the probability of the next token — then sampli
- Pretraining and Scaling Laws
Pretraining is the phase where a large language model learns language and knowledge by predicting the next token across a massive text corpus, producing the base model that later fine-tuning refines. Scaling laws are the empirical finding t
- Prompt Engineering Foundations
Prompt engineering rests on a few durable principles rather than clever tricks: be specific about the task, show the model examples, tell it the exact output format, and give it room to reason before answering. Because a large language mode
- Prompt Engineering: Full Course
Prompt engineering is the discipline of designing the instructions, context, and examples given to a large language model to get reliable, high-quality outputs. This course covers the core skills in order: the anatomy of a prompt, zero-shot
- Quantization, Distillation, and Inference Optimization
Serving a large language model is dominated by inference cost, and three techniques cut it. Quantization stores weights in lower precision (16-bit to 8- or 4-bit), shrinking memory and speeding compute with minor accuracy loss. Distillation
- RLHF, DPO, and Preference Tuning
Preference tuning aligns a language model with human preferences — helpfulness, harmlessness, and following instructions — after pretraining and supervised fine-tuning. RLHF (Reinforcement Learning from Human Feedback) trains a reward model
- Structured Outputs and JSON Schema
Structured outputs make a large language model return data in a machine-readable format — usually JSON that conforms to a schema you supply — instead of free prose. Modern providers offer a structured-output mode that constrains the model's
- Tokenization and Context Windows
A large language model does not read characters or words — it reads tokens, chunks of text (roughly four characters or three-quarters of a word in English) produced by a tokenizer. The context window is the maximum number of tokens the mode
RAG
- RAG Chunking Strategies Explained
Chunking is the step in a retrieval-augmented generation (RAG) pipeline that splits large documents into smaller passages before they are embedded and stored in a vector database. Good chunking keeps each passage semantically self-contained
- What Are Vector Embeddings?
A vector embedding is a list of numbers that represents the meaning of a piece of data — a word, sentence, image, or document — as a point in space. An embedding model places similar meanings close together, so 'dog' and 'puppy' land near e
- What Is RAG? (Retrieval-Augmented Generation)
Retrieval-Augmented Generation (RAG) is a technique that makes a large language model answer from your own documents instead of only its training data. Before answering, the system retrieves the most relevant text — usually by embedding sim
- Build a RAG Chatbot in Python
A retrieval-augmented generation (RAG) chatbot answers questions from your own documents by retrieving relevant passages and feeding them to a large language model. You build one in Python in five steps: load documents, split them into chun
- Building RAG with LlamaIndex
LlamaIndex is a data framework built for retrieval-augmented generation, giving you first-class pieces for the whole pipeline: loaders that ingest documents, an index that chunks and embeds them, a retriever that fetches relevant nodes, and
- Chunking Strategies for RAG
Chunking splits documents into passages before they are embedded for retrieval-augmented generation, and the strategy you choose is one of the highest-impact decisions in a RAG pipeline. Beyond fixed-size and recursive splitting, production
- Embeddings and Vector Search
Embeddings and vector search are the retrieval building block behind most AI search and RAG systems. An embedding model turns each piece of text into a vector that captures its meaning; vector search then finds the stored vectors closest to
- Evaluating RAG: Faithfulness and Relevance
Evaluating a retrieval-augmented generation (RAG) system means grading its two halves separately: retrieval and generation. Retrieval is measured by whether the right passages were fetched (context precision and recall). Generation is measu
- Fine-Tuning vs RAG vs Prompting
Fine-tuning, retrieval-augmented generation (RAG), and prompting are three ways to adapt a large language model to your task. Prompting changes only the instructions you send; RAG injects relevant external data into the prompt at query time
- GraphRAG: Retrieval over Knowledge Graphs
GraphRAG is a retrieval-augmented generation approach that builds a knowledge graph of entities and their relationships from your documents, then retrieves over that structure instead of, or alongside, plain vector search. Because it can tr
- How Vector Databases Work
A vector database is a database built to store and search high-dimensional vectors — the numeric embeddings that represent the meaning of text, images, or audio. Instead of matching exact keywords, a vector database finds the items whose em
- Hybrid Retrieval and Reciprocal Rank Fusion
Hybrid retrieval combines keyword search and semantic (vector) search so a retrieval-augmented generation system gets both exact-term precision and meaning-based recall. Because the two methods produce scores on different scales, results ar
- pgvector: Vector Search in Postgres for RAG
pgvector is an open-source extension that adds a vector data type and similarity search to PostgreSQL, letting you store embeddings and run nearest-neighbor queries in the database you already run. For retrieval-augmented generation, it mea
- Reranking for Better RAG Answers
Reranking is a second retrieval stage that reorders an initial set of candidate passages by true relevance to the query before they go to the model. The first stage (vector or keyword search) is fast but coarse; a reranker — usually a cross
- Semantic Search with Embeddings
Semantic search is a search technique that ranks results by meaning rather than exact keyword matches. It converts both the query and every document into embeddings — numeric vectors from a model — and returns the documents whose vectors si
- Vector Databases Compared
Vector databases store embeddings and run similarity search for retrieval-augmented generation, and the main options differ less in core search than in how you run and scale them. Pinecone is fully managed; Weaviate, Qdrant, and Milvus are
- RAG vs Fine-Tuning: When to Use Each
Choose Retrieval-Augmented Generation when you need fresh, citable facts from external documents; choose fine-tuning when you need to reshape a model's default style, format, or domain vocabulary.
- Pinecone Vector Database: Complete Tutorial
Build and deploy a vector search application with Pinecone by mastering index creation, embedding ingestion, similarity querying, metadata filtering, and RAG pipeline integration.
- Qdrant Vector Database Guide
Qdrant is a purpose-built vector database that stores embeddings as points inside collections and retrieves the nearest neighbors fast — with payload filtering, multiple index types, and a clean API that fits directly into RAG and semantic
Safety
- What Is Prompt Injection?
Prompt injection is a security vulnerability in which an attacker hides malicious instructions inside text an AI system reads — a web page, email, or document — tricking the underlying large language model into ignoring its original instruc
- An AI Safety Release Checklist
A safety release checklist is a gate an AI feature passes before shipping, turning scattered good intentions into a repeatable set of checks. It covers evaluation against a golden set, adversarial red-teaming, guardrails on inputs and outpu
- Bias and Fairness in AI
Bias in AI is systematic unfairness in a model's behavior, usually inherited from skewed training data or historical patterns and expressed as worse outcomes for some groups. Fairness is the goal of not disadvantaging people based on protec
- Defending Against Prompt Injection
Defending against prompt injection means containing an attack you cannot fully prevent, since a language model can't reliably separate instructions from the data it reads. The strongest defenses are structural: least privilege on tools and
- EU AI Act Basics
The EU AI Act is the European Union's comprehensive law regulating artificial intelligence, the first of its kind. It takes a risk-based approach: it bans a few unacceptable-risk uses, imposes strict obligations on high-risk systems, requir
- Guardrails and Validators for LLM Apps
Guardrails are programmatic checks placed around a large language model to keep its inputs and outputs within safe, valid bounds. Input guardrails screen what reaches the model — off-topic requests, injection attempts, personal data; output
- Hallucinations and Grounding
A hallucination is when a large language model produces confident, fluent text that is factually wrong or unsupported — inventing a citation, a statistic, or an API that does not exist. It happens because the model predicts likely-sounding
- Privacy and Data Governance for AI
Privacy and data governance for AI is the practice of controlling how personal and sensitive data flows through an AI system — what is collected, sent to models, logged, retained, and trained on. It matters because LLM apps constantly move
- Prompt Injection: Attacks & Defenses
Prompt injection is an attack in which adversarial instructions hidden in the text a large language model processes override the developer's intended instructions. Attacks range from direct jailbreaks a user types to indirect payloads plant
- Securing Tool-Using Agents
A tool-using agent can read data, call APIs, and take actions, which makes its security failures consequential: a hijacked agent doesn't just say the wrong thing, it does the wrong thing. Securing one rests on least privilege — minimal tool
- The NIST AI Risk Management Framework for Generative AI
The NIST AI Risk Management Framework (AI RMF) is a voluntary, widely adopted framework from the US National Institute of Standards and Technology for managing AI risks across a system's life. It organizes work into four functions — Govern,
- The OWASP Top 10 for LLM Applications
The OWASP Top 10 for LLM Applications is a community-maintained list of the most critical security risks specific to apps built on large language models. It names threats that traditional security misses — prompt injection, sensitive inform