Sitemap
UX Planet

UX Planet is a one-stop resource for everything related to user experience.

Press enter or click to view image in full size

Member-only story

Claude Opus 5.5 Official Prompting Guide

Anthropic’s 7 Rules for Better Results from Opus 5.5

9 min readOct 27, 2026

--

Anthropic’s latest AI models are quite different from their predecessors. They are designed for more autonomous, agent-first workflows involving design, coding, research, and auditing. The models are also optimized for complex, multi-step tasks.

This makes the prompts we used for previous AI models less effective, simply because newer AI models are smart enough to fill in some gaps in task understanding.

To get the best possible results from Opus 5.5, I want to share a collection of seven rules and habits that Anthropic recommends following when writing prompts. At the end of the article, I’ll also share a ready-to-use prompting framework that brings all seven rules together.

1. Provide a persistent task list to Claude

Context is king

When AI clearly understands the product it’s working with, the project, and the tasks it needs to perform, there’s a better chance that the output it generates will match your intentions.

Typically, we have a very specific set of tasks we want Claude to perform for our product. And it’s possible to make both your life and Claude’s easier by creating a persistent task list and…

--

--

Nick Babich
Nick Babich

Written by Nick Babich⁠

Product designer & editor-in-chief of UX Planet. Twitter https://twitter.com/101babich

UX Planet
UX Planet

Published in UX Planet

UX Planet is a one-stop resource for everything related to user experience.