Useful Cheatsheets

Practical cheat sheets for real life.

Direct, one-page reference guides to build software and AI systems, grow personal wealth, and optimize everyday health — designed for quick lookups and visual learners.

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Coding, AI, and engineering guides for building practical skills.

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Showing 279 of 279 cheatsheets
AIAdvanced

Autonomous Agent LoopsCheatsheet

Build robust ReAct autonomous agent loops with termination conditions, state history management, and recursion limits.

AIBeginner

AI API ConnectionsCheatsheet

Connect Node.js and TypeScript applications to modern AI APIs using official SDK clients and secure environment authentication.

AIIntermediate

Audio and SpeechCheatsheet

Transcribe spoken audio, generate timestamped subtitles, and synthesize natural text-to-speech with Whisper and OpenAI.

AIIntermediate

Chain of ThoughtCheatsheet

Elicit step-by-step reasoning, mathematical problem solving, and complex logic through explicit chain-of-thought prompting.

AIIntermediate

AI Error HandlingCheatsheet

Build resilient AI integrations with exponential backoff, rate limit recovery, circuit breakers, and fallback models.

AIBeginner

Few Shot PromptingCheatsheet

Guide model reasoning, tone, and formatting consistency using balanced input-output in-context demonstration exemplars.

AIAdvanced

Model Fine-TuningCheatsheet

Prepare formatted training datasets, execute fine-tuning jobs, and evaluate specialized models with OpenAI and LoRA.

AIAdvanced

Guardrails and SafetyCheatsheet

Implement content moderation, PII redaction, output schema guardrails, and refusal cascades for safe AI deployment.

AIIntermediate

Human In The LoopCheatsheet

Implement human authorization approval gates, state persistence, and audit controls for high-stakes AI tool actions.

AIBeginner

AI Model SelectionCheatsheet

Select the optimal artificial intelligence model tier by evaluating latency, context size, reasoning capacity, and token costs.

AIIntermediate

Prompt CachingCheatsheet

Slash AI latency and token costs by up to 90 percent using Anthropic and OpenAI prompt caching breakpoints.

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