Borrowing it
Nothing to install: this file belongs to murmur-io/murmur. 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/murmur-io/murmur/murmur/.agents/skills/promo-video/SKILL.mdgit clone --depth 1 https://github.com/murmur-io/murmurWrote 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/murmur-io/murmur/promo-video)<a href="https://agentmods.dev/skills/murmur-io/murmur/promo-video"><img src="https://agentmods.dev/badge/skills/murmur-io/murmur/promo-video/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/murmur-io/murmur/promo-video"><img src="https://agentmods.dev/badge/skills/murmur-io/murmur/promo-video.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 | $0.00128 | $0.02178 |
| Opus 5 | $0.00064 | $0.01089 |
| Sonnet 5 | $0.00026 | $0.00436 |
| Haiku 4.5 | $0.00013 | $0.00218 |
Grade A, and why
promo-video 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 6d 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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 6d ago First seen · 148 lines · 128 tokens per session scan A 66c925d7fc52
promo-video is a skill published in the GitHub repository murmur-io/murmur (11 stars, last pushed today), licensed AGPL-3.0. It adds 128 tokens to every session and 2,178 once invoked, about $0.0006 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 2026-09-02.
Other skills, from other repositories
frame-macos-notification
Realistic macOS notification banner with app icon, title, and body, suited to video overlays or product teasers.
clovy-obsidian
Work with the Obsidian vault currently selected in Clovy.
dj
DJ — your personal Disc Jockey. Describe a vibe ("Hong Kong 90s top 50", "rainy-Sunday jazz", "best of Beyond") and DJ builds the set, finds each track, and pulls clean MP3s into your local library — tagged, ready to copy to your phone for offline play. Ask for a vibe and it builds the set; say the word and it fetches…
remotion
Molio's builtin skill for MAKING a video from any source — wiki notes, articles, scripts, product info, or a brief — and rendering it to MP4. Use whenever the user wants to create/produce a video: a product demo, promo, trailer, intro, explainer, motion graphic, kinetic typography, social clip, or animated logo — even…
hatch-pet
Create, repair, validate, preview, and package Codex-compatible animated pet spritesheets from character art, screenshots, generated images, or visual references. Use when a user wants to hatch a Codex pet, create a custom animated pet, or build a built-in pet asset with an 8x9 atlas, transparent unused cells…
digital-eguide
A two-spread digital e-guide preview — page 1 is a cover (display title, author, "What's inside" stats, table of contents teaser); page 2 is a spread (lesson body with pull-quote and a step list). Lifestyle / creator brand tone. Use when the brief asks for an "e-guide", "digital guide", "lookbook", "lead magnet"…