Borrowing it
Nothing to install: this file belongs to oratis/LISA. 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/oratis/LISA/main/.claude/skills/cloud-screencast/SKILL.mdgit clone --depth 1 https://github.com/oratis/LISAWrote 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/oratis/lisa/cloud-screencast)<a href="https://agentmods.dev/skills/oratis/lisa/cloud-screencast"><img src="https://agentmods.dev/badge/skills/oratis/lisa/cloud-screencast/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/oratis/lisa/cloud-screencast"><img src="https://agentmods.dev/badge/skills/oratis/lisa/cloud-screencast.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 | $0.00154 | $0.03346 |
| Opus 5.5 | $0.00062 | $0.01338 |
| Sonnet 5.5 | $0.00031 | $0.00669 |
| Haiku 4.5 | $0.00015 | $0.00335 |
Grade D, and why
cloud-screencast scanned grade D with 2 findings 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
ssh ... "mkdir -p ~/.app && cat > ~/.app/config.env && chmod 600 ~/.app/config.env" Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
# each retake starts with: rm -rf ~/.app && cp -r ~/.app-pristine ~/.app How it starts
The opening of the file, as written. The whole thing — 300 lines — stays where its author put it; the contents beside it link to each section on GitHub.
cloud-screencast — reproducible UI demo videos on a throwaway VM
Records a web UI on a headless cloud box instead of the user's desktop. You get a pristine app state, a chosen viewport, no personal data in frame, and a scripted take you can re-run until it's right — none of which is true of a hand-recorded local screen capture.
Cost + lifecycle: this creates a billable VM. Always tell the user it exists, and delete it when the recording is downloaded (§8). An e2-standard-4 left running is roughly $95/month.
Config
Fill once per project, then run.
PROJECT = <gcp-project-id>
ZONE = <zone, e.g. us-central1-a>
VM = <instance-name, e.g. app-record>
APP_REPO = <git url of the app, or an npm package name>
APP_START = <command that serves the UI, e.g. node dist/cli.js serve --web --port 5757>
APP_URL = <local url the browser opens, e.g. http://127.0.0.1:5757/>
SECRETS = <local env file the app needs, e.g. ~/.app/config.env>
1. Pick the geometry first
Everything downstream depends on this, and getting it wrong means re-recording.
Chrome's --force-device-scale-factor=N divides the X display into CSS pixels:
CSS viewport = Xvfb resolution / DSF
Record at 2× the delivery resolution and downscale in post — supersampling is what makes small UI text look sharp in an H.264 clip.
| Delivery | Xvfb | DSF | CSS viewport | Notes |
|---|---|---|---|---|
| 1920×1080 | 2880×1620 | 2 | 1440×810 | good default, 16:9 |
| 1920×1080 | 2560×1440 | 2 | 1280×720 | tighter; short UIs get clipped |
| 1080×1080 | 2160×2160 | 2 | 1080×1080 | square, better mobile in-feed |
Do not just use 1280×720. A real user's browser window is far taller than 720 CSS px, so a 720-tall viewport clips panels that never clip in real life — and the clipped part is usually the payoff (the final state, the confirm button). Probe the actual content height before committing (§4) and go taller if it overflows.
Keep integer DSF values. Fractional scale factors make Chrome's text rendering noticeably softer.
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 300 lines · 154 tokens per session scan D 4b0c44d77a6c
cloud-screencast is a skill published in the GitHub repository oratis/LISA (175 stars, last pushed 5d ago), licensed MIT. It adds 154 tokens to every session and 3,346 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it D with 2 findings (asks for root, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
cloud-screencast compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| cloud-screencastoratis/LISA | Skill | 175 | 5d ago | MIT | D | 154 | Claude Code |
| imap-smtp-emailnetease-youdao/LobsterAI | Skill | 6.2k | yesterday | MIT | A | 82 | Claude Code, Codex |
| technology-searchnetease-youdao/LobsterAI | Skill | 6.2k | yesterday | MIT | A | 65 | Claude Code, Codex |
| article-writernetease-youdao/LobsterAI | Skill | 6.2k | yesterday | MIT | A | 62 | Claude Code, Codex |
| develop-web-gamenetease-youdao/LobsterAI | Skill | 6.2k | yesterday | MIT | A | 64 | Codex |
| skin-creatornetease-youdao/LobsterAI | Skill | 6.2k | yesterday | MIT | A | 48 | Claude Code, Codex |
| content-plannernetease-youdao/LobsterAI | Skill | 6.2k | yesterday | MIT | A | 63 | Claude Code, Codex |