Asset: Demo

Asset: Demo is a skill for Claude Code from JasonWarrenUK/goblin-mode. It costs 47 tokens per session (1,123 once invoked), scanned A, original, no licence file.

A skill for making demo videos or animated GIFs that show command-line tools or website workflows. It chooses a recording method based on what the demonstration needs to show.

In plain words
What is it for?
Use it to record terminal commands, browser storyboards, or browser interactions that the storyboard format cannot describe.
Why use it?
It helps turn a working tool or web flow into a shareable visual demonstration without planning the recording method from scratch.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Good fit Use it to record terminal commands, browser storyboards, or browser interactions that the storyboard format cannot describe.

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Install with agentmods
npx agentmods add skills/jasonwarrenuk/goblin-mode/asset-demo
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add JasonWarrenUK/goblin-mode --skill asset-demo
Clone the repo
git clone --depth 1 https://github.com/JasonWarrenUK/goblin-mode

Made for: Claude Code.

Wrote 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.

agentmods badge for Asset: Demo

README.md
[![agentmods](https://agentmods.dev/badge/skills/jasonwarrenuk/goblin-mode/asset-demo/github.svg)](https://agentmods.dev/skills/jasonwarrenuk/goblin-mode/asset-demo)
Your own site
<a href="https://agentmods.dev/skills/jasonwarrenuk/goblin-mode/asset-demo"><img src="https://agentmods.dev/badge/skills/jasonwarrenuk/goblin-mode/asset-demo/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.

agentmods 80×15 button for Asset: Demo

Your own site · 80×15
<a href="https://agentmods.dev/skills/jasonwarrenuk/goblin-mode/asset-demo"><img src="https://agentmods.dev/badge/skills/jasonwarrenuk/goblin-mode/asset-demo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,123 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00047 $0.01123
Opus 5 $0.00023 $0.00562
Sonnet 5 $0.00009 $0.00225
Haiku 4.5 $0.00005 $0.00112

Measured 11d ago against content hash 4d3dd4bfe5f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

Asset: Demo scanned grade A with 0 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 11d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/asset-demo/SKILL.md · 53 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

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.

  1. 11d ago First seen · 53 lines · 47 tokens per session scan A 4d3dd4bfe5f6

Subscribe to this mod's changes

Asset: Demo is a skill published in the GitHub repository JasonWarrenUK/goblin-mode (5 stars, last pushed 3d ago), with no licence file. It adds 47 tokens to every session and 1,123 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories