Andrej Karpathy's AutoResearch answers one question: can an AI coding agent improve a machine learning model overnight, with no human in the loop? The answer is yes - but only because of the scaffolding around it. This breakdown covers how the ratchet mechanism works, why val_bpb is the right metric to chase, what the agent actually does turn by turn, and where the loop reliably stalls. The real takeaway isn't the repo - it's the pattern you can lift and reuse elsewhere.

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Every AI coding agent runs the same loop: infer, call a tool, append output, repeat. But how Codex CLI handles prompt growth, caching invalidation, and context compaction determines whether you're spending tokens efficiently or burning them. This breakdown covers the internals, the research on AGENTS.md files and Skills, and what it all means in practice.

This comprehensive guide uses a martial-arts belt analogy to outline the path to AI mastery -from a beginner White Belt (AI User) all the way to an expert Black Belt (AI Architect). Each belt level represents a milestone in skills, tools, and mindset. We detail what you can do at each stage, example projects, checklists to level up, recommended resources (including a highly-rated Udemy course on AI Engineering), and time estimates for advancement. Whether you’re a newcomer or an experienced developer, you’ll see how to progress step-by-step.

Propagated.ai supports this journey by letting you select your belt level and preferred content type (technical guides, business case studies, news, tips, tutorials, etc.) to get personalized AI content and learning support tailored to your needs. Let’s begin the journey!