Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/PackmindHub/packmindnpx agentmods add skills/packmindhub/packmind/michel-ui-demo-recorderWrote 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/packmindhub/packmind/michel-ui-demo-recorder)<a href="https://agentmods.dev/skills/packmindhub/packmind/michel-ui-demo-recorder"><img src="https://agentmods.dev/badge/skills/packmindhub/packmind/michel-ui-demo-recorder/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/packmindhub/packmind/michel-ui-demo-recorder"><img src="https://agentmods.dev/badge/skills/packmindhub/packmind/michel-ui-demo-recorder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Rogue Agent · line 3 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00192 | $0.06235 |
| Opus 5 | $0.00096 | $0.03118 |
| Sonnet 5 | $0.00038 | $0.01247 |
| Haiku 4.5 | $0.00019 | $0.00624 |
Grade A, and why
michel-ui-demo-recorder scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
until curl -sf "localhost:$PM_WEB/api/v0" >/dev/null; do sleep 1; done How it starts
The opening of the file, as written. The whole thing — 374 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Demo Recorder
Produce client-ready UI documentation (HD video + screenshots) from a running web app using the Playwright MCP video tools.
When to reach for this skill
- "Record a demo / walkthrough / screencast / video of the app"
- "Take screenshots of the feature working"
- "Show the client what X looks like"
- "Document this flow visually"
- "Make a GIF/video of clicking through Y"
The deliverable is always one or more of:
- WebM video (1440×900 HD by default), with optional chapter cards
- Full-page PNG screenshots at key moments
- An animated cursor overlay so viewers can follow what's being clicked (always present)
- A subtitle bar narrating each step (always present)
Non-negotiable: every video this skill produces MUST carry both the cursor overlay and the subtitle bar. They are injected via browser_evaluate (pure DOM), independent of .mcp.json — a run that omits them is a defective deliverable, not a stylistic choice. If you cannot inject them, stop and report why rather than shipping a bare recording.
Why a skill exists for this
The Playwright MCP video tools work, but they have several non-obvious gotchas that waste a lot of time if you discover them mid-recording:
- The video tools live behind an opt-in flag (
--caps=devtools) and are silently absent if the MCP server wasn't launched with it. - There are usually two different Playwright MCP tool prefixes in the deferred-tools list (a stock one and a plugin one). They use different browser contexts, and only one of them can record video. Mixing them mid-session causes "Browser is already in use" errors.
- The recorder doesn't render the OS cursor — videos look like the app is operating itself unless you inject a fake cursor.
- Any
location.reload()wipes the injected cursor — it must be reinjected. - The output file lands at the project root, not in whatever
--output-dirsays.
This skill codifies the working recipe so the model doesn't relearn it every time.
What ships with it
4 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.
- 7d ago First seen · 374 lines · 192 tokens per session scan A ae95b277fd66
michel-ui-demo-recorder is a skill published in the GitHub repository PackmindHub/packmind (310 stars, last pushed yesterday), licensed Apache-2.0. It adds 192 tokens to every session and 6,235 once invoked, about $0.0010 per session on Opus 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 2026-09-03.
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