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Phase 12 · Prompt Engineering

Topics

System Prompts

Part of the AI Engineer Roadmap.

Summary

The instruction layer that sets a model's persona, rules and boundaries for an entire conversation — the main lever product builders use to shape assistant behavior.

How to Learn This

  • 1Write a system prompt for a specific assistant persona and test it across many user inputs.
  • 2Learn the difference in weight/persistence between system prompts and user messages.
  • 3Practice hardening a system prompt against attempts to override its instructions.

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Chain-of-Thought Prompting

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Structured Output (JSON Mode)

More topics in Prompt Engineering

Prompt Design FundamentalsZero-Shot & Few-Shot PromptingChain-of-Thought PromptingStructured Output (JSON Mode)Prompt TemplatesFunction/Tool CallingPrompt ChainingHandling Hallucinations via PromptingPrompt Injection Risks
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