Cairn: Skill for Codex

.agents/skills/remotion-studio/SKILL.md

remotion-studio is a skill for Codex from QuarkOS/Cairn. It costs 10 tokens per session (185 once invoked), scanned A, original, no licence file.

A preview tool for Remotion videos, which are videos built with React code.

In plain words
What is it for?
Use it to preview a Remotion video during development.
Why use it?
It lets you inspect the video output while working on the code.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is QuarkOS/Cairn's own configuration. It tells Codex how to work on Cairn itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Cairn configures →

Reuse

Borrowing it

Nothing to install: this file belongs to QuarkOS/Cairn. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/QuarkOS/Cairn/main/.agents/skills/remotion-studio/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/QuarkOS/Cairn

Made for: Codex.

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 remotion-studio

README.md
[![agentmods](https://agentmods.dev/badge/skills/quarkos/cairn/remotion-studio.svg)](https://agentmods.dev/skills/quarkos/cairn/remotion-studio)
Your own site
<a href="https://agentmods.dev/skills/quarkos/cairn/remotion-studio"><img src="https://agentmods.dev/badge/skills/quarkos/cairn/remotion-studio.svg" alt="Measured on agentmods" height="20"></a>
Per session 10 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 185 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 $0.00010 $0.00185
Opus 5 $0.00005 $0.00093
Sonnet 5 $0.00002 $0.00037
Haiku 4.5 $0.00001 $0.00018

Measured 6d ago against content hash fde22ffe77ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

remotion-studio 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.

.agents/skills/remotion-studio/SKILL.md · 25 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

Files

What ships with it

1 file 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.

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. 6d ago First seen · 25 lines · 10 tokens per session scan A fde22ffe77ae

Subscribe to this mod's changes

remotion-studio is a skill published in the GitHub repository QuarkOS/Cairn (1 stars, last pushed 3d ago), with no licence file. It adds 10 tokens to every session and 185 once invoked, about $0.0001 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.

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