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Open source · Python

← Guides> Library> Level

Beginner guides to prompt engineering and AI agents

These guides assume no experience with language models beyond having used a chat assistant. They explain one idea at a time, in plain language, with examples you can copy.

On the prompting side they cover what prompt engineering is, how to write a clear prompt, system and user messages, roles, few-shot examples, step-by-step reasoning, structured JSON output, grounding, summarization, a first evaluation loop and quick checks for hallucinations, plus how prompt injection works and short essays on why models miscount letters or repeat what they have seen. On the engineering side they cover what the Model Context Protocol is, how to build a first AI agent in Python, how to connect MCP servers to it, and how to run, debug and deploy it. The agent guides assume you can read and run basic Python. Each guide stands on its own.

[n.01/02]> 36 guides

AI Engineering15

  1. 01What Is MCP (Model Context Protocol)? A Developer's GuideWhat MCP is and how it works: hosts, clients, servers, tools, resources, transports and SDK 2.x. Build a small MCP server and connect an agent to it.Beginner · 18 minOct 18, 2026
  2. 02What Is an LLM Guardrail? Types, Examples and LimitsWhat an LLM guardrail is: a check on what goes into and out of a model. Input, output and tool guardrails, a real example, and what guardrails can't do.Beginner · 7 minOct 18, 2026
  3. 03OpenRouter AI Agent with MCP: Many Models in PromptiseBuild an OpenRouter AI agent with MCP tools: one key for many models, route only to providers that support tools, add attribution headers, and fix errors.Beginner · 11 minOct 18, 2026
  4. 04How to Run, Debug and Deploy an AI Agent in PythonRun, debug and deploy a Python AI agent project with one command: a package.json-style manifest, live traces, a terminal UI, JSON logs and an API.Beginner · 15 minOct 18, 2026
  5. 05What Is an AI Agent Framework? When You Need OneWhat an AI agent framework does: the tool loop, model access, limits, approvals and tracing. When you need one and when plain API calls are enough.Beginner · 7 minOct 18, 2026
  6. 06Gemini AI Agent with MCP: Use Google Models in PromptiseBuild a Gemini AI agent with MCP tools: get an AI Studio key, pick a current model id, set reasoning effort, use Vertex AI on Google Cloud, fix errors.Beginner · 11 minOct 18, 2026
  7. 07What Is an AI Agent? Definition, How It Works, ExamplesWhat an AI agent is: a model that calls tools in a loop until a goal is met. How the loop works, a real example, agents vs chatbots and workflows, FAQs.Beginner · 7 minOct 18, 2026
  8. 08Azure OpenAI Agent with MCP: Use Deployments in PromptiseBuild an Azure OpenAI agent with MCP tools: deployment vs model name, endpoint, API version or the v1 API, Entra ID sign-in, and fixes for common errors.Beginner · 12 minOct 18, 2026
  9. 09What Is Agentic RAG? How It Differs from Classic RAGWhat agentic RAG is: an agent decides when and what to search, searches again if needed and cites sources. How it works, an example, RAG vs agentic RAG.Beginner · 7 minOct 18, 2026
  10. 10What Is Tool Calling? LLM Function Calling ExplainedWhat tool calling (function calling) is: how an LLM asks your code to run a function, the JSON schema it sees, parallel calls, and how it differs from MCP.Beginner · 7 minOct 18, 2026
  11. 11Claude AI Agent with MCP: Use Anthropic Models in PromptiseBuild a Claude AI agent with MCP tools: set the Anthropic key and model id, use effort instead of temperature, add prompt caching, and fix common errors.Beginner · 11 minOct 18, 2026
  12. 12Ollama AI Agent with MCP: Run Local Models in PromptiseRun an AI agent on a local Ollama model with MCP tools: pick a tool-calling model, set the context length, reach a remote Ollama, and fix common errors.Beginner · 11 minOct 18, 2026
  13. 13What Is Human in the Loop AI? Approvals for AI AgentsWhat human in the loop AI means for agents: a person approves risky tool calls before they run. How approval gates work, an example, and common mistakes.Beginner · 7 minOct 18, 2026
  14. 14How to Build an AI Agent in Python (2026 Guide)Build an AI agent in Python step by step: write the tool loop, serve tools over MCP, add model fallback, approvals and limits. Runnable code, real output.Beginner · 20 minOct 18, 2026
  15. 15How to Connect MCP Servers to Your AI Agent in PythonGive your AI agent real tools with the Model Context Protocol. Connect local and remote MCP servers to a Python agent, step by step, with code you can run.Beginner · 12 minOct 11, 2026

Prompt Engineering19

  1. 16Why Can't LLMs Count Letters? Tokens and ProbabilityWhy LLMs miscount letters, reverse strings wrong and miss word limits: tokenization, sampling, real failures, and why exact work belongs in your code.Beginner · 4 minOct 18, 2026
  2. 17How to Brief an LLM: Context Gaps and Clarifying QuestionsHow to brief an LLM like a new colleague: why it lacks your context and won't ask, the jagged frontier, and a real example of guesses swapped for asks.Beginner · 5 minOct 18, 2026
  3. 18Are LLMs Stochastic Parrots? What the Term Gets RightAre LLMs stochastic parrots? What Bender et al. meant, what next-token prediction implies, where the term falls short, and the habit it should give you.Beginner · 5 minOct 18, 2026
  4. 19RAG for Beginners: Build a Tiny RAG Pipeline in PythonBuild a tiny RAG pipeline in Python: chunk Markdown files, embed and retrieve passages, cite sources and admit when the docs don't cover it. Real output.Beginner · 7 minOct 18, 2026
  5. 20Grounding LLM Answers: Give the Model the Right ContextGround LLM answers in your own text: paste the source, fence it with delimiters, require citations and handle gaps. Real return-policy example.Beginner · 7 minOct 18, 2026
  6. 21Few-Shot Prompting: How to Pick Examples That WorkFew-shot prompting explained: when examples beat instructions, how to choose and format them, and which biases to avoid. Real release-notes example.Beginner · 6 minOct 18, 2026
  7. 22Multimodal Prompting: Extract Reliable Data from ImagesPrompt a vision model for usable data: send the image first, name the fields, write rules for tricky cases and check totals in code. Real receipt example.Beginner · 6 minOct 18, 2026
  8. 23Chain of Density Prompting: Denser Summaries, Same LengthChain of Density prompting explained: add missing entities to a summary without making it longer, from the 2023 paper to a one-pass version. Real output.Beginner · 8 minOct 18, 2026
  9. 24LLM Hallucinations: Why They Happen and Quick ChecksWhy LLMs hallucinate and how to catch it: spot risky questions, allow "I don't know", require quotes and check them in code. Real fake-citation example.Beginner · 7 minOct 18, 2026
  10. 25Structured Outputs: Get Reliable JSON from an LLMGet reliable JSON from an LLM: define a schema, use structured outputs, validate with Pydantic and catch wrong values. Real email-extraction example.Beginner · 7 minOct 18, 2026
  11. 26Iterative Prompt Refinement: Improve a Prompt in 3 RoundsImprove a prompt step by step: diagnose the biggest gap, change one thing per round and keep every version. Three real rounds on one task, with output.Beginner · 8 minOct 18, 2026
  12. 27Prompt Evaluation for Beginners: A Simple Eval LoopEvaluate prompts with a simple eval loop: build a golden set, write pass/fail checks, compare prompt versions and read the failures. Real Python output.Beginner · 7 minOct 18, 2026
  13. 28Role Prompting: When Personas Help and When They Don'tRole prompting explained: when a persona improves output, when it doesn't, and how to write a role that works. Real example: a price-change email.Beginner · 7 minOct 18, 2026
  14. 29System Prompt vs User Prompt: What Goes WhereSystem prompt vs user prompt: what each is for, what to put in each, and how the model weighs them. A real support-assistant example with model output.Beginner · 7 minOct 18, 2026
  15. 30LLM Tone and Style: Write a Style Guide PromptControl LLM tone, voice and length with a style guide in the system prompt: rules, banned words, one example and code checks. Real before-and-after output.Beginner · 6 minOct 18, 2026
  16. 31Chain-of-Thought Prompting for Beginners: Step by StepChain-of-thought prompting for beginners: when asking for steps helps, how to write a step prompt, and when reasoning models don't need it. Real example.Beginner · 6 minOct 18, 2026
  17. 32LLM Confidence Scores: Add Self-Check Fields to PromptsGet useful LLM confidence scores: add basis, quote and check fields to the output, define each level and route answers in code. Real example and output.Beginner · 8 minOct 18, 2026
  18. 33How to Write Clear Prompts: Ask, Role, Constraints, FormatWrite prompts the model can't misread: state the ask, set a role, add constraints and fix the format. A real product-description prompt, before and after.Beginner · 6 minOct 18, 2026
  19. 34What Is Prompt Engineering? A Beginner's Guide with ExamplesWhat prompt engineering is, how a prompt works, and the five parts of a good one, with a real before-and-after example and a map of the beginner path.Beginner · 7 minOct 18, 2026

LLM Security1

  1. 35What Is Prompt Injection? How It Works, With ExamplesPrompt injection explained: how direct and indirect attacks hijack a language model, a real example of it working, and the defenses that reduce the risk.Beginner · 9 minOct 18, 2026

Image Generation Prompting1

  1. 36Consistent AI Image Generation: JSON Prompts and ReferencesKeep AI-generated characters consistent: store a JSON spec, render it as a clear prompt, vary one field at a time and use reference images. Real results.Beginner · 7 minOct 18, 2026
[n.02/02]> go further

Topics at this level

  • Model Context Protocol (MCP)9
  • Tool Calling6
  • Hallucinations5
  • Grounding and Citations4
  • Prompt Writing Basics4
  • LLM Mental Models3
  • RAG (Retrieval-Augmented Generation)3
  • Structured Outputs3
  • System Prompts3
  • How LLMs Work2

Other levels

  • Intermediate guides80
  • Advanced guides24

Categories

  • AI Engineering71
  • Prompt Engineering54
  • LLM Security10

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