Everyone teaching Claude "tips" is a year behind. Folders? Dead. MD file? Dead. Global instructions? Empty. Here's what (actually) works in 2026: Everything on the image + 146 more Claude tips: (go to the link first, then read this) ✦ The Claude model changed. Start with Fable 5, let it figure out the problem, then switch to Opus-5. ✦ Delete any settings you have on by default. I heavily use Claude skills (when necessary). More context = Less creativity. ✦ Do yourself a favour and delete the folders. They leak. Skills & Projects are enough for any kind of tasks. If you could teach it to a person, make it a skill. If it's a client, make it a Project. ✦ Do not continue with old prompting habits. "Think step by step," giving loads of examples hurts more than they help. And never end a prompt with "right?" because Claude will just agree with you. The list is bigger but makes it simpler for you to master Claude: ✦ Start a fresh chat every 30 to 50 follow-up prompts. Otherwise, Claude will be unbearably annoying to follow any new instructions. ✦ 'Edit' already sent prompt instead of correcting a mistake by sending another follow-up prompt. To get the entire list of 160 Claude tips, go to: It's literally the entire knowledge I have of using Claude.