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The Domesday Book ofKWJ · AI

The Almanac shop

Printed and printable companions

A small line of supporting tools — cheat sheets, decks, posters — built from the same source material as the site, designed for the workshop or wall rather than the browser.

Cheat sheets

Claude — Operator's Cheat Sheet

Every Claude API knob, prompt-cache rule, and pricing tier on one printable sheet.

$9Coming soon

GPT-5 — Operator's Cheat Sheet

Reasoning-effort tiers, billing surprises, schema-adherence quirks.

$9Coming soon

Gemini 2.5 — Operator's Cheat Sheet

Context-window pricing, multimodal inputs, long-video tricks.

$9Coming soon

DeepSeek R1 — Operator's Cheat Sheet

Self-hosting recipe, fine-tune budget, <think> block formatting.

$9Coming soon

Llama 4 — Operator's Cheat Sheet

Hardware sizing, vLLM tuning, quantisation tradeoffs.

$9Coming soon

Qwen 3 — Operator's Cheat Sheet

Multilingual deployment, fine-tuning pitfalls.

$9Coming soon

Open-Weights Stack — Cheat Sheet

Together, Fireworks, Groq, Replicate — when to pick which.

$9Coming soon

MCP Server — Cheat Sheet

Writing your first MCP server, the protocol gotchas.

$9Coming soon

Agent Loop — Cheat Sheet

The four termination guards, state compaction patterns.

$9Coming soon

Prompt Cache — Cheat Sheet

Anthropic, OpenAI, Gemini caching APIs side by side.

$9Coming soon

Model Routing — Cheat Sheet

When to route, when not, classifier latency budget.

$9Coming soon

Flashcard decks

Model Tells — Flashcard Deck

Identify any frontier model from a paragraph of output. 60 cards.

$14Coming soon

Schema Adherence — Flashcard Deck

Failure modes for JSON-strict outputs across providers.

$14Coming soon

Benchmark Trust Levels — Flashcard Deck

Which benchmarks survive contamination, which don't.

$14Coming soon

Pricing & Billing Surprises — Flashcard Deck

Reasoning tokens, cache misses, batch API discounts.

$14Coming soon

Pocket guides

The AI Eras — Pocket Field Guide

Ten eras of AI on a single foldable. The Almanac in your pocket.

$19Coming soon

Sizing Wheel — Pick a Model

Spin the wheel — workload in, model out. The fastest selection tool ever printed.

$12Coming soon

The Compendium

The Operator's Compendium

Every agent harness, every routing pattern, every cost trick. 90-page PDF.

$29Coming soon

Wall posters

Model Lineage Tree — Wall Poster

Every frontier model since BERT, plotted by ancestry, on one print.

$24 / 34 printComing soon

Model Portrait Set (10×) — Wall Posters

Naturalist-style portraits of every model worth running.

$24 / 34 printComing soon

Complete bundle

Complete Library — Everything Bundle

All cheat sheets, all decks, the Compendium, every poster — at a third the unbundled cost.

$79Coming soon

All digital products fulfilled by Gumroad (handles EU/UK VAT). Posters via Society6 when print-shipped. See disclosure for affiliate terms.