Saturday, 28th February 2026
Tool
markdown-copy component
— The `<markdown-copy>` web component renders markdown content with built-in controls for copying and viewing the source code. Users can toggle between the rendered markdown view and the raw markdown syntax using the menu button in the top-right corner, or copy the entire markdown text to their clipboard with a single click. The component automatically handles markdown formatting including headings, code blocks, tables, blockquotes, and lists.
Interactive explanations
When we lose track of how code written by our agents works we take on cognitive debt.
For a lot of things this doesn't matter: if the code fetches some data from a database and outputs it as JSON the implementation details are likely simple enough that we don't need to care. We can try out the new feature and make a very solid guess at how it works, then glance over the code to be sure.
Often though the details really do matter. If the core of our application becomes a black box that we don't fully understand we can no longer confidently reason about it, which makes planning new features harder and eventually slows our progress in the same way that accumulated technical debt does. [... 672 words]