Practical AI, in writing.
Workflows, prompts, tools, and field notes from building production AI systems.Page 2 of 22
The Real AI Test Isn't Building, It's Not Breaking
Anthropic says Claude Opus 5 can make targeted edits to complex spreadsheets and decks without wrecking the formulas or formatting around them.
Stop Staring at a Blank Hook
One prompt line turns a blank page into ten ready-made hooks, split across pain, curiosity, contrarian, and story.
What Happened When I Yelled at My AI and Walked Away
A frustrated prompt, a swim with my son, and a working app waiting when I got back. Here's what that taught me about AI.
Claude Isn't One Tool. You're Only Using One.
Chat is one fifth of what Claude can do. Here's what the other tools actually handle, and why ignoring them is costing you time.
You're Only Using One Sixth of Claude
Claude Chat is one tool out of six. If you only type into chat, you're hiring a smart employee and refusing to give them access to anything.
Claude Can Now Swap Tools Mid-Conversation
Opus 5 can add and remove tools between turns without breaking the cache, which means an agent no longer needs every key to your digital life at once.
The Angry Prompt That Built a Real Product
I typed one frustrated line at an AI, walked away, and came back to a working app that became HeyMotion. Here is what that taught me about prompting.
How One Angry Prompt Built a Real Product in a Day
I sent my AI a frustrated one-liner, went swimming, and came back to a working app. The lesson was in the question I accidentally asked.
Claude Opus 5 Quietly Swaps Models Mid-Task
Opus 5 can hand off refused work to another model instead of killing your workflow, but now you have to figure out who actually finished the job.
The Small Claude Opus 5 Change That Cuts Real Costs
Claude Opus 5 cut the minimum prompt-cache size in half. It sounds minor until you run the same workflow thousands of times.
Claude Opus 5: The Quiet Changes That Actually Matter
Claude Opus 5 didn't get a bigger context window or a lower price. It got the ability to think, verify, and delegate on its own, and that changes everything.
Claude Opus 5: The Upgrades Nobody's Talking About
Anthropic buried the real Opus 5 story under context window talk. The actual shift is that Claude now decides how hard to think, and that costs you something.