22 · Cheat Sheets¶
Condensed, printable references for the moments when you need the answer quickly: while building, before an interview, or in the final week before an exam. Each sheet links back to the module that explains the "why".
Dated content. Model IDs, prices, Claude Code commands and MCP details change often. Every sheet states the date it was checked (2026-10-24 for this release) and links to the live official page. If a sheet disagrees with the official docs, the docs win; please open an issue (see CONTRIBUTING).
The sheets¶
| Sheet | Covers | Best for |
|---|---|---|
| Claude API | Request shape, stop reasons, content blocks, structured outputs, caching, streaming, batches, errors, tool loop | Developers and architects |
| Prompt engineering | Prompt anatomy, techniques, output control on current models, hallucination controls, prompt smells | Everyone |
| Model selection | Current models table with prices and context, price modifiers, decision guide | Architects, budget owners |
| Claude Code | CLI, flags, slash commands, files, settings precedence, permissions, hooks, skills, subagents, MCP | Developers, platform teams |
| MCP | Roles, primitives, transports, message shape, authorization, security checklist | Integrators, security reviewers |
| AI security | OWASP LLM Top 10 (2025), injection defences, agent controls, data protection, threat modelling | Security engineers, architects |
| CCAO-F one-pager | Associate exam format, domains, weights, key concepts per objective | CCAO-F candidates |
| CCAR-F one-pager | Architect Foundations exam format, scenarios, domains, weights, key concepts per objective | CCAR-F candidates |
| CCAR-P one-pager | Architect Professional exam format, domains, weights, key concepts per objective | CCAR-P candidates |
Exam facts on the one-pagers come from registry.yaml; see also
exam-facts.md.
How to use them¶
- While learning: read the module first, then use the sheet to consolidate. A sheet is a summary, not a substitute.
- While building: keep the API and Claude Code sheets open; they reflect the current API rules in
STYLE.md (no sampling parameters, no prefill, adaptive thinking,
effort). - Before an exam: read the one-pager for your track, then drill flashcards and a mock exam.
- Printing: each sheet is plain Markdown. Most Markdown viewers print to PDF cleanly; Mermaid diagrams render on GitHub.