browser-screenshots

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Aktualisiert26. Juli 2026 um 04:51

Capture and persist browser screenshots or GIFs for visual review of a web UI. Use when verifying a UI change visually, reviewing a page's design or layout, recording a multi-step interaction (dropdown, hover, form flow), toggling dark mode for a comparison shot, or when a screenshot needs to be written to disk rather than only shown inline.

Installation

Mit Codex oder Claude installieren Kopieren Sie diesen Prompt, fügen Sie ihn in Codex, Claude oder einen anderen Assistant ein und lassen Sie die Skill-Seite prüfen und installieren.

Quelle

KyleKing

KyleKing/dotfiles

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Softwarequalitätssicherungsanalysten und -testerInformatik- und Mathematikberufe·SOC 15-1253

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SKILL.md

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name	browser-screenshots
description	Capture and persist browser screenshots or GIFs for visual review of a web UI. Use when verifying a UI change visually, reviewing a page's design or layout, recording a multi-step interaction (dropdown, hover, form flow), toggling dark mode for a comparison shot, or when a screenshot needs to be written to disk rather than only shown inline.

Browser screenshots

Ask for a target directory at the start of any visual review session if one has not been specified.

Picking a capture method

Try in this order. Each fallback exists because the one above it fails in a specific, known way.

gif_creator for any multi-step interaction. One GIF per feature is clearer than several stills, and it actually writes a file to disk and returns the path. It only works on the agent's managed tab group — in a regular browser session it fails with "not in managed tab group".
computer / zoom for a single still that only needs to be seen inline. save_to_disk: true does not write a file despite the name; it only embeds the image in the conversation. When the target is a <canvas>, javascript_tool can read it out (canvas.toDataURL()) for the Write tool; anything else that needs a disk file goes to method 3.
mss stills driven from Bash, when gif_creator is unavailable or the shot must land on disk. Full procedure in mss-capture.md.

Dark mode

Check how the app themes before toggling. The class toggle below covers Tailwind-style .dark setups; apps keyed off prefers-color-scheme or a data-theme attribute need window.matchMedia emulation or the attribute set instead.

document.documentElement.classList.add('dark')     // or .remove('dark')

Methods that do not work

Do not spend turns rediscovering these.

screencapture -x in Bash — the shell process lacks screen recording permission
html2canvas — fails on the modern CSS color() function, which many design systems use
tell application "Google Chrome" to activate on its own — picks the wrong window when several are open; use the URL-matching loop in mss-capture.md

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name	browser-screenshots
description	Capture and persist browser screenshots or GIFs for visual review of a web UI. Use when verifying a UI change visually, reviewing a page's design or layout, recording a multi-step interaction (dropdown, hover, form flow), toggling dark mode for a comparison shot, or when a screenshot needs to be written to disk rather than only shown inline.

Browser screenshots

Ask for a target directory at the start of any visual review session if one has not been specified.

Picking a capture method

Try in this order. Each fallback exists because the one above it fails in a specific, known way.

gif_creator for any multi-step interaction. One GIF per feature is clearer than several stills, and it actually writes a file to disk and returns the path. It only works on the agent's managed tab group — in a regular browser session it fails with "not in managed tab group".
computer / zoom for a single still that only needs to be seen inline. save_to_disk: true does not write a file despite the name; it only embeds the image in the conversation. When the target is a <canvas>, javascript_tool can read it out (canvas.toDataURL()) for the Write tool; anything else that needs a disk file goes to method 3.
mss stills driven from Bash, when gif_creator is unavailable or the shot must land on disk. Full procedure in mss-capture.md.

Dark mode

document.documentElement.classList.add('dark')     // or .remove('dark')

Methods that do not work

Do not spend turns rediscovering these.

screencapture -x in Bash — the shell process lacks screen recording permission
html2canvas — fails on the modern CSS color() function, which many design systems use
tell application "Google Chrome" to activate on its own — picks the wrong window when several are open; use the URL-matching loop in mss-capture.md