Reference

Reference tables for capture and feedback work

The numbers and support facts that come up over and over in screen capture, QA, and the handoff to a coding agent — collected as clean lookup tables you can cite, link, or skim.

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Each page on this hub is a single lookup table with just enough context to use it. They're built to be cited (by a teammate, a search engine, or a coding agent reading the page as a source), so the data stays correct and the framing stays short.

Devices and layout

The dimensions behind 'does it look right on…'.

Common viewport sizes
Phone, tablet, and laptop viewport widths to test against.
Responsive breakpoints
The standard breakpoints across major CSS frameworks.

Browser support

What works where, for the two APIs capture depends on.

Screen-capture browser support
getDisplayMedia support across browsers and platforms.
Speech-recognition browser support
Web Speech API recognition support, and the Firefox gap.

Files and formatting

Format choices that affect how a capture or a note travels.

Image format comparison
PNG vs JPEG vs WebP vs AVIF, by use case.
Markdown syntax reference
The CommonMark syntax a coding agent reliably parses.

Stop pasting screenshots into agent prompts.

Capture the screen, talk through the problem, hand your agent a markdown document it can act on. About a minute from open tab to shareable URL.

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