LLM Prompting: Persona Assignment vs. Metacognition

Thu, 27 Nov 2025 07:57:49 +0900

On walking the tightrope between confidence and caution

Dohyun Jung - Principal Consultant, ROBOCO

Introduction

What is the difference between telling a model “answer like a senior engineer” and telling it “first think about what you are, then answer”? On the surface they look similar, but internally two completely different mechanisms are at work. This post examines the mathematical difference between the two approaches and what it means in practice.

What Google's Prompt Engineering Whitepaper Says About Vibe Coding

Sun, 13 Apr 2025 08:32:57 +0900

Dohyun Jung - Principal Consultant, ROBOCO

TL;DR

The code prompting section of Google’s prompt engineering whitepaper is a great starting point for using vibe coding at a professional level.
Prompting for writing, explaining, translating, and debugging/reviewing code maps directly onto the vibe coding structure, where humans define the problem and AI carries it out.
To get good results, spell out your output requirements, give positive instructions, and keep experimenting with and documenting reusable prompts.

Introduction - Prompt Engineering and Vibe Coding

Whenever I pick up a new technology or need to get up to speed on a topic, the first thing I read is the whitepaper published by the vendor behind it. Most technical whitepapers are free, and they pack in a lot of information, which saves me time.

Prompt-Engineering on ROBOCO

LLM Prompting: Persona Assignment vs. Metacognition

Dohyun Jung - Principal Consultant, ROBOCO

Introduction

What Google's Prompt Engineering Whitepaper Says About Vibe Coding

Dohyun Jung - Principal Consultant, ROBOCO

TL;DR

Introduction - Prompt Engineering and Vibe Coding