What if the most expensive part of a long AI conversation is not the model itself, but the memory required to remember what you just said? For a 100,000-token e

A Skill is a handbook that teaches AI your job — five steps to turn repetitive work into one-command automation, no coding required. This article walks through the full build process with real-world cases.

• Grid: draggable guide lines (2H + 2V) appear during Set 2 Points for precise alignment; snap-to-intersection by default, hold Alt to disable
• New Crop tool: drag to select a region, confirm to crop; Reset Crop restores the original image

When everyone has access to the same AI models, your personal knowledge base becomes the decisive variable — this article unpacks the three-layer architecture and why Markdown beats every flashy tool.

Something shifts after 40. A late night lingers longer. Afternoon crashes hit harder. Muscle disappears more quietly. What feels like one vague decline is often