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capture-screenshots

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更新日2026年7月2日 07:02

Capture consistent Mergify dashboard screenshots for the docs site using Chrome browser automation, save them to the correct images/ directory, and emit the ready-to-paste astro:assets import and <Image> tag with alt text. Use when adding or refreshing a dashboard/app screenshot in docs, when a docs page needs a UI image, or when asked to screenshot app.mergify.com for documentation. Drives the claude-in-chrome MCP tools against the user's existing logged-in Chrome session.

インストール

Codex または Claude でインストールこの Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。

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Mergifyio

Mergifyio/docs

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Capture Dashboard Screenshots

Produce clean, consistent screenshots of the Mergify dashboard (dashboard.mergify.com) and wire them into a docs page.

Two ways to capture

Prefer the internal Playwright tool for batch or unattended captures. The capture tool in the Mergifyio/skills repo runs headless Chromium at deviceScaleFactor: 2 and writes PNG bytes straight to disk. It owns the session/auth handling, which is intentionally kept out of this public repo.

Use the interactive Chrome path below when you are working alongside the user — exploring the dashboard, framing a one-off shot, or capturing a state that is easier to reach by clicking than by URL. It drives the claude-in-chrome MCP against the user's own logged-in session.

Either way, the docs-side conventions are the same: framing, directory/naming, and the <Image> wiring snippet — see references/conventions.md.

Prerequisite (interactive path)

The user must already be logged into dashboard.mergify.com in Chrome. This skill reuses the existing browser session through the claude-in-chrome MCP tools; it never handles credentials. If navigation lands on a login page, stop and ask the user to log in (! open https://dashboard.mergify.com), then continue.

Load the browser tools first

This skill targets the claude-in-chrome MCP server (a user/Claude Code-level MCP, not declared in this repo's .claude/mcp.json). The tool names below are its stable, documented interface. If you drive a different browser MCP, map each step to that server's equivalent capability — list tabs, create a tab, navigate, resize the window, run in-page JavaScript, read the page, capture a screenshot.

If the mcp__claude-in-chrome__* tools are deferred, load them in ONE ToolSearch call before anything else:

ToolSearch select:mcp__claude-in-chrome__tabs_context_mcp,mcp__claude-in-chrome__tabs_create_mcp,mcp__claude-in-chrome__navigate,mcp__claude-in-chrome__resize_window,mcp__claude-in-chrome__computer,mcp__claude-in-chrome__read_page,mcp__claude-in-chrome__javascript_tool

Workflow

Get tab context — call tabs_context_mcp first to see current tabs. Do NOT reuse an old tab unless the user asks; create a fresh one with tabs_create_mcp.
Set a standard window size — resize_window to the standard viewport (see references/conventions.md). Consistency across screenshots matters more than any single size.
Navigate — navigate to the target dashboard URL. Wait for the page to finish loading (read_page to confirm content is present).
Clean the frame — dismiss overlays that would pollute the shot (cookie banner, Intercom launcher, product tours). Use the dismissal snippets in references/conventions.md. NEVER trigger a JS alert/confirm/prompt — it freezes the extension.
Capture — take the screenshot with the computer tool. Frame the relevant region; capture the specific panel rather than the whole chrome when possible.
Save — write the image to src/content/docs/images/<section>/<page>/<kebab-name>.png following the naming convention.
Emit the snippet — output the ready-to-paste import + <Image> tag with drafted alt text (see below). Hand it back so it can be dropped into the MDX page (or applied directly if this was called from document-a-feature).

Output snippet format

import { Image } from "astro:assets"
import <camelCaseName> from "../../images/<section>/<page>/<kebab-name>.png"

<Image src={<camelCaseName>} alt="<what the screenshot shows, specifically>" />

Alt text describes what the reader sees and why it matters, not "screenshot of dashboard". Example: alt="Merge queue view showing two pull requests batched together".

Details

Read references/conventions.md for: the standard viewport sizes, theme handling (light by default), the overlay-dismissal snippets, the section/page/name directory convention, common dashboard URLs, and tips for stable, repeatable framing.

Guardrails

Stop and ask if: a page won't load, you hit a login wall, or a tool errors 2–3 times. Do not loop on a failing browser action.
Capture a couple of extra frames if recording a flow with gif_creator, for smooth playback.
Never commit screenshots that contain another customer's private data — use the user's own org or a demo org.

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name

capture-screenshots

description

Capture consistent Mergify dashboard screenshots for the docs site using Chrome browser automation, save them to the correct images/ directory, and emit the ready-to-paste astro:assets import and <Image> tag with alt text. Use when adding or refreshing a dashboard screenshot in docs, when a docs page needs a UI image, or when asked to screenshot dashboard.mergify.com for documentation. Drives the claude-in-chrome MCP tools against the user's existing logged-in Chrome session.

Capture Dashboard Screenshots

Produce clean, consistent screenshots of the Mergify dashboard (dashboard.mergify.com) and wire them into a docs page.

Two ways to capture

Either way, the docs-side conventions are the same: framing, directory/naming, and the <Image> wiring snippet — see references/conventions.md.

Prerequisite (interactive path)

Load the browser tools first

If the mcp__claude-in-chrome__* tools are deferred, load them in ONE ToolSearch call before anything else:

ToolSearch select:mcp__claude-in-chrome__tabs_context_mcp,mcp__claude-in-chrome__tabs_create_mcp,mcp__claude-in-chrome__navigate,mcp__claude-in-chrome__resize_window,mcp__claude-in-chrome__computer,mcp__claude-in-chrome__read_page,mcp__claude-in-chrome__javascript_tool

Workflow

Get tab context — call tabs_context_mcp first to see current tabs. Do NOT reuse an old tab unless the user asks; create a fresh one with tabs_create_mcp.
Set a standard window size — resize_window to the standard viewport (see references/conventions.md). Consistency across screenshots matters more than any single size.
Navigate — navigate to the target dashboard URL. Wait for the page to finish loading (read_page to confirm content is present).
Clean the frame — dismiss overlays that would pollute the shot (cookie banner, Intercom launcher, product tours). Use the dismissal snippets in references/conventions.md. NEVER trigger a JS alert/confirm/prompt — it freezes the extension.
Capture — take the screenshot with the computer tool. Frame the relevant region; capture the specific panel rather than the whole chrome when possible.
Save — write the image to src/content/docs/images/<section>/<page>/<kebab-name>.png following the naming convention.
Emit the snippet — output the ready-to-paste import + <Image> tag with drafted alt text (see below). Hand it back so it can be dropped into the MDX page (or applied directly if this was called from document-a-feature).

Output snippet format

import { Image } from "astro:assets"
import <camelCaseName> from "../../images/<section>/<page>/<kebab-name>.png"

<Image src={<camelCaseName>} alt="<what the screenshot shows, specifically>" />

Alt text describes what the reader sees and why it matters, not "screenshot of dashboard". Example: alt="Merge queue view showing two pull requests batched together".

Details

Guardrails

Stop and ask if: a page won't load, you hit a login wall, or a tool errors 2–3 times. Do not loop on a failing browser action.
Capture a couple of extra frames if recording a flow with gif_creator, for smooth playback.
Never commit screenshots that contain another customer's private data — use the user's own org or a demo org.