LDLuhui Devinluhui.hashnode.devĀ·Sep 18 Ā· 8 min readAn Engineering Guide to LLM Token and Cost OptimizationFor application and platform engineers, and for teams using AI coding tools. Saving tokens is not mainly about shortening prompts. It is about making the model do less useless work. Repeated reads, ir00
LDLuhui Devinluhui.hashnode.devĀ·Sep 4 Ā· 9 min readThe Bumps and Bruises of Building Multi-Agent Systemsšā Iām Luhui Dev, a developer who has been breaking down Agent engineering and exploring how AI can be applied in education. I focus on Agent Harness, LLM application engineering, AI for Math, and th00
LDLuhui Devinluhui.hashnode.devĀ·Aug 28 Ā· 9 min readA Personal Skill Map for the AI Era: Building a Complete Loop in 2026šā Iām Luhui Dev, a developer who has been breaking down Agent engineering and exploring how AI can be applied in education. I focus on Agent Harness, LLM application engineering, AI for Math, and th00
LDLuhui Devinluhui.hashnode.devĀ·Aug 16 Ā· 14 min readCan AI Beat CAPTCHAs in 2026? From Recognition to Risk Scoringšā Iām Luhui Dev, a developer who has been breaking down Agent engineering and exploring how AI can be applied in education. I focus on Agent Harness, LLM application engineering, AI for Math, and th00
LDLuhui Devinluhui.hashnode.devĀ·Aug 7 Ā· 9 min readIf AI Writes a Research Paper, Would You Trust It?šā Iām Luhui Dev, a developer who has been breaking down Agent engineering and exploring how AI can be applied in education. I focus on Agent Harness, LLM application engineering, AI for Math, and th00
