ffmpeg-mcp: Instructions file for Claude Code

CLAUDE.md

ffmpeg-mcp CLAUDE.md is an instructions file for Claude Code from PedroMarianoAlmeida/ffmpeg-mcp. It costs 306 tokens per session, scanned A, original, MIT.

Repository instructions for an FFmpeg MCP server, a tool service for processing video and audio files. They explain how the project is built, organized, and extended.

In plain words
What is it for?
Building and modifying the server, including tools to cut, join, convert, or remove silence from media files, and to turn images into videos.
Why use it?
They give a coding agent the project’s expected commands, structure, dependencies, and rules for adding tools.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

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

Reuse

Borrowing it

Nothing to install: this file belongs to PedroMarianoAlmeida/ffmpeg-mcp. 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/PedroMarianoAlmeida/ffmpeg-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/PedroMarianoAlmeida/ffmpeg-mcp

Made for: Claude Code.

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Per session 306 This file is loaded in full into every session.
When invoked 306 The same file — it is already loaded in full.
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 $0.00306 $0.00306
Opus 5 $0.00153 $0.00153
Sonnet 5 $0.00061 $0.00061
Haiku 4.5 $0.00031 $0.00031

Measured 9d ago against content hash bebcb9e7a6a8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ffmpeg-mcp CLAUDE.md 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 9d 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.md · 38 lines

What it actually says

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Build & Run

npm install            # Install dependencies
npm run build          # Build TypeScript to build/

Architecture

FFmpeg MCP Server - provides video manipulation tools via Model Context Protocol.

  • src/index.ts - Server entry point, MCP setup, tool registrations
  • src/lib.ts - FFmpeg operations (cutVideo, imageToVideo, concatVideos)

Adding New Tools

  1. Add the operation function to lib.ts
  2. Register the tool in index.ts with Zod schema

Key Dependencies

  • fluent-ffmpeg - Node.js FFmpeg wrapper
  • ffmpeg-static - Bundled FFmpeg binary (no system install needed)
  • @modelcontextprotocol/sdk - MCP server SDK

Available Tools

  • cut_video - Extract segment from video (startTime + duration)
  • image_to_video - Convert static image to video with fixed duration
  • concat_videos - Join multiple videos into one
  • convert - Convert between formats (audio/video), auto-detects from file extension
  • remove_silence - Detect and remove silent segments from video (uses silencedetect + trim/concat)
  • ffmpeg_raw - Execute raw FFmpeg commands for advanced operations not covered by other tools
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. 9d ago First seen · 38 lines · 306 tokens per session scan A bebcb9e7a6a8

Subscribe to this mod's changes

ffmpeg-mcp CLAUDE.md is an instructions file published in the GitHub repository PedroMarianoAlmeida/ffmpeg-mcp (2 stars, last pushed 8mo ago), licensed MIT. It adds 306 tokens to every session, about $0.0015 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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