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02 — Reference

Quick-Ref Guides

Cheat sheets and summaries for the concepts you need most, fast.

3 on the way·Reference
What you'll learn

The one-page distillations — cheat sheets, checklists, and decision cards for the concepts you look up more than you memorise.

Who this is for

Anyone who has already read the deep dive and just wants the fast-lookup version.

How to use it

The guides are numbered — read in order for the curriculum path, or jump straight to the one you need. Each card is self-contained.

Cheat sheets & tools

Print-ready quick references and live calculators — verified monthly
QR-01 · Cheat sheetPrompt Engineering Cheat SheetFind your row. Copy the text. Get on with your day. Patterns, templates, and anti-patterns on one printable page. Last verified 2026-07-09.Open cheat sheet →Download PDF
QR-02 · Cheat sheetLLM Provider & Model ComparisonContext windows, prices, cache and batch discounts across Anthropic, OpenAI, Google, and DeepSeek — on one page. Verified monthly.Open cheat sheet →QR-03 · Cheat sheetRAG Architecture Decision TreeMatch the retrieval pattern to the question. Read down until you hit YES. Six branches from vanilla RAG to agentic RAG, each with when-to-use and when-not-to. Last verified 2026-07-09.Open cheat sheet →QR-04 · Cheat sheetAI Glossary Quick CardOne-page glossary — core concepts, prompting, RAG, agents, training, evaluation, and risk. The terms you need to nod along in a meeting.Open cheat sheet →QR-05 · Cheat sheetGen AI Project ChecklistSix steps from Frame to Govern, plus the skip-steps that will bite you. Print it, tick it off, ship what actually survives production.Open cheat sheet →QR-09 · Live toolLLM Cost CalculatorEstimate what a workload costs across every current model from Anthropic, OpenAI, Google, and DeepSeek. Cache-hit and batch-discount aware. Verified monthly.Open calculator →QR-10 · Cheat sheetMCP Quick ReferenceModel Context Protocol on one page — architecture, primitives, transports, the attack surface, and the defences that make it safe to plug into production.Open cheat sheet →

On the roadmap

Outlines locked — write-ups shipping next, in this order
  1. 06Fine-Tuning Decision Cheat SheetWhen to prompt, retrieve or fine-tune.Coming soon
  2. 07Agent Design Patterns Cheat SheetThe four patterns and when to use each.Coming soon
  3. 08Vector Database ComparisonSide-by-side of the main options.Coming soon

Related tracks

Continue in the same group
01 — BuildsUse Cases & TutorialsChat with PDFs, CSV analysis, and a growing pattern library of real builds.