Borrowing it
Nothing to install: this file belongs to internetworklab/cloudping. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/internetworklab/cloudping/master/.ai/skills/take-a-screenshot/SKILL.mdgit clone --depth 1 https://github.com/internetworklab/cloudpingWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/internetworklab/cloudping/take-a-screenshot)<a href="https://agentmods.dev/skills/internetworklab/cloudping/take-a-screenshot"><img src="https://agentmods.dev/badge/skills/internetworklab/cloudping/take-a-screenshot/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/internetworklab/cloudping/take-a-screenshot"><img src="https://agentmods.dev/badge/skills/internetworklab/cloudping/take-a-screenshot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00082 | $0.00845 |
| Opus 5.5 | $0.00033 | $0.00338 |
| Sonnet 5.5 | $0.00016 | $0.00169 |
| Haiku 4.5 | $0.00008 | $0.00085 |
Grade A, and why
take-a-screenshot scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s -o /dev/null -w "%{http_code}" http://localhost:45844 How it starts
The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Take a Screenshot
Capture side-by-side bright and dark mode screenshots of the Next.js application running on the local dev server.
Prerequisites
- Node.js and
npm - Chrome MCP server (stdio transport)
ffmpegfor combining images
Step 1: Start the Dev Server
Read web/package.json to confirm the dev port. This project uses next dev -p 45844, so the base URL is http://localhost:45844.
Check if the server is already responding:
curl -s -o /dev/null -w "%{http_code}" http://localhost:45844
If the response is not 200, start it:
cd web && npm run dev
Poll the port until it returns HTTP 200 before proceeding.
Step 2: Capture Screenshots via Chrome MCP
Use the Chrome MCP server (stdio transport) to automate the browser.
Preferred Method: Chrome Launch Flags
Force the color scheme at the browser level by passing Chrome flags when launching the instance. This affects prefers-color-scheme globally without requiring query parameters or page interaction.
Bright mode:
- Launch Chrome with
--force-light-mode - Navigate to
http://localhost:45844 - Capture screenshot
- Save as
bright.png
Dark mode:
- Launch Chrome with
--force-dark-mode - Navigate to
http://localhost:45844 - Capture screenshot
- Save as
dark.png
If the Chrome MCP server reuses an already-running Chrome instance and cannot relaunch with different flags, use one of the fallbacks below.
Fallback 1: Query Parameters
Append theme-forcing query parameters to the URL:
- Bright:
http://localhost:45844?forceBright=true - Dark:
http://localhost:45844?forceDark=true
Fallback 2: JavaScript / CDP
If query parameters do not exist in the application, use Chrome DevTools Protocol or execute JavaScript in the page to toggle the theme. For example, inject a script that overrides window.matchMedia or forces MUI/Tailwind into the desired color scheme.
Save both images to a temporary directory (e.g., /tmp/screenshots/).
Step 3: Combine Images
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 95 lines · 82 tokens per session scan A ffc1278a0d7e
take-a-screenshot is a skill published in the GitHub repository internetworklab/cloudping (24 stars, last pushed 22d ago), licensed MIT. It adds 82 tokens to every session and 845 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
take-a-screenshot compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| take-a-screenshotinternetworklab/cloudping | Skill | 24 | 22d ago | MIT | A | 82 | Claude Code, Codex |
| add-vector-iconchromium/chromium | Skill | 25k | yesterday | BSD-3-Clause | A | 72 | Claude Code, Codex |
| webui-codechromium/chromium | Skill | 25k | yesterday | BSD-3-Clause | A | 33 | Claude Code, Codex |
| browserwing-executorMemTensor/MemOS | Skill | 12k | 2d ago | Apache-2.0 | A | 42 | Claude Code, Codex |
| figma-design-reviewchromium/chromium | Skill | 25k | yesterday | BSD-3-Clause | A | 59 | Claude Code, Codex |
| figma-to-views-jsonchromium/chromium | Skill | 25k | yesterday | BSD-3-Clause | A | 55 | Claude Code, Codex |
| figma-to-webuichromium/chromium | Skill | 25k | yesterday | BSD-3-Clause | A | 44 | Claude Code, Codex |