ffmpeg-render-pro: Skill for Claude Code

.claude/skills/ffmpeg-render-pipeline/SKILL.md

ffmpeg-render-pipeline is a skill for Claude Code from beeswaxpat/ffmpeg-render-pro. It costs 55 tokens per session (3,651 once invoked), scanned A, original, MIT.

A rendering workflow for FFmpeg, a tool that converts and processes video and audio files. It supports parallel jobs, hardware encoding, audio mixing, checkpoints, dashboards, optical-flow frame creation, colour work, and YouTube-ready output.

In plain words
What is it for?
Use it to render videos or audio, combine sound, encode with a GPU, create smoother motion with optical flow, apply colour adjustments, and prepare files for YouTube.
Why use it?
It organises demanding media renders and helps continue interrupted jobs while producing consistent output.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

This is beeswaxpat/ffmpeg-render-pro's own configuration. It tells Claude Code how to work on ffmpeg-render-pro 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 ffmpeg-render-pro configures →

Reuse

Borrowing it

Nothing to install: this file belongs to beeswaxpat/ffmpeg-render-pro. 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/beeswaxpat/ffmpeg-render-pro/main/.claude/skills/ffmpeg-render-pipeline/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/beeswaxpat/ffmpeg-render-pro

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,651 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 original 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 $0.00055 $0.03651
Opus 5.5 $0.00022 $0.01460
Sonnet 5.5 $0.00011 $0.00730
Haiku 4.5 $0.00006 $0.00365

Measured 2mo ago against content hash 7caa3f3777e3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ffmpeg-render-pipeline 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 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.

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.

.claude/skills/ffmpeg-render-pipeline/SKILL.md · 309 lines

How it starts

The opening of the file, as written. The whole thing — 309 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ffmpeg Render Pipeline - Complete Reference

You are an expert video/audio render engineer. This skill covers the ffmpeg-render-pro toolkit - a parallel rendering system optimized for YouTube Shorts and long-form videos.

Toolkit location: The user may have ffmpeg-render-pro installed globally (npm install -g ffmpeg-render-pro provides the ffmpeg-render-pro CLI) or as a local dependency. Check with ffmpeg-render-pro version or node -e "require('ffmpeg-render-pro')". In a repo checkout, node bin/ffmpeg-render-pro.js is equivalent to the installed CLI.

Prerequisites

Before any render task, verify:

  1. Node.js >= 18 - node --version
  2. ffmpeg available - ffmpeg -version. If ffmpeg is installed but not on PATH, set FFMPEG_RENDER_PRO_FFMPEG to its full path (a sibling ffprobe is auto-derived; FFMPEG_RENDER_PRO_FFPROBE overrides it explicitly). Both are read at call time.
  3. If ffmpeg is missing entirely, tell the user: "Install ffmpeg from https://ffmpeg.org/download.html and ensure it's on your PATH, or set FFMPEG_RENDER_PRO_FFMPEG to its full path."

Quick Start (for any render task)

The shortest path to a first render is three commands. Use it whenever the user has no worker script yet:

# 1. Prove the setup: 5s test render, dashboard opens
ffmpeg-render-pro benchmark

# 2. Write the starter worker (only renderFrame() needs editing; --force overwrites)
ffmpeg-render-pro init my-worker.js

# 3. Render it (output.mp4)
ffmpeg-render-pro render my-worker.js --duration=5

Without a global install, prefix each command with npx (npx ffmpeg-render-pro init). Over MCP the same path is get_worker_template (save starterSource to a file, edit renderFrame) then render_video.

# Check system capabilities
ffmpeg-render-pro info

# Render a YouTube Short shape (vertical, 60s) with the bundled test worker
ffmpeg-render-pro benchmark --width=1080 --height=1920 --fps=30 --duration=60

# Render with your own worker script
ffmpeg-render-pro render my-worker.js --duration=60 --output=video.mp4

# Force CPU or GPU encoding during detection
ffmpeg-render-pro detect-gpu --cpu
ffmpeg-render-pro detect-gpu --gpu

Read the full file on GitHub · 309 lines

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. 2mo ago Changed · +12 lines 7caa3f3777e3
  2. 2mo ago First seen · 297 lines · 55 tokens per session scan A 21e611099368

Subscribe to this mod's changes

ffmpeg-render-pipeline is a skill published in the GitHub repository beeswaxpat/ffmpeg-render-pro (3 stars, last pushed 2mo ago), licensed MIT. It adds 55 tokens to every session and 3,651 once invoked, about $0.0002 per session on Opus 5.5. 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

ffmpeg-render-pipeline compared with skills from other repositories

ffmpeg-render-pipeline next to 6 skills from other repositories
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