technique-researchlisted
Install: claude install-skill Deadshot-77/davinci
# Technique research
`frontend-craft` already sends you to look at the category. That pass answers
*what does this look like* — it screenshots a page and you read the image.
This one answers a different question: **how does it work.** You cannot get that
from a picture, and you should not get it from an article. Articles describe what
someone built a year ago; the live page is the thing that is true now.
## Read the artifact, not the writing about it
Go to a real implementation and inspect it. `javascript_tool` runs a query
against the live DOM and `read_page` returns the accessibility tree — between
them you can see the mechanism directly.
What you are extracting is **mechanism, not aesthetic**: the properties that
move, the attribute names, how media is loaded and when, what happens on a slow
connection, what the fallback is. "Dark ground with a serif headline" is not a
finding. This is:
```js
// what is actually on the page
({
videos: document.querySelectorAll('video').length,
canvases: document.querySelectorAll('canvas').length,
sticky: [...document.querySelectorAll('*')]
.filter(e => getComputedStyle(e).position === 'sticky').length,
attrs: [...new Set([...document.querySelectorAll('video')]
.flatMap(v => [...v.attributes].map(a => a.name)))],
backdrop: [...new Set([...document.querySelectorAll('*')]
.map(e => getComputedStyle(e).backdropFilter).filter(v => v && v !== 'none'))],
})
```
A real study of a shipping product page returned sixteen