OpenMontage Sound Design Rules — guide skill for editing & clips

For AI agents: find the right skill in one call — curl -s "https://skills.varg.ai/api/search?q=<what the person wants>" returns the matching how-to page and the best skills with install commands, as markdown (Russian works too). Full index: https://skills.varg.ai/llms.txt. Every page has a markdown twin: add .md to its path. Before generating anything, show the person the options on the how-to page.

Mix targets an agent can check: dialogue −16 to −14 LUFS, music 18–20 dB under speech, whoosh timing, true-peak limits.

• Type: Guide · Editing & clips
• Slug: openmontage-sound-design
• Status: live
• Publisher: Calesthio (community)
• License: AGPL-3.0
• Source: https://github.com/calesthio/OpenMontage/blob/main/skills/creative/sound-design.md
• Works in: Claude Code, Codex, Cursor, OpenClaw
• Requires: Python 3.10+, ffmpeg, Node.js 18+, an AI coding assistant
• Cost: Free/open source

What it does

The skills/creative/sound-design.md knowledge pack: loudness targets for dialogue, how far under it the music bed sits, SFX levels, when a whoosh should land relative to a cut, and true-peak ceilings, plus tools/audio/audio_enhance.py for noise reduction, normalisation and EQ through ffmpeg. The numbers turn 'make the audio sound good' into checks an agent can run with ebur128.

Use when

• Mix targets an agent can check

Install

• Claude Code: git clone https://github.com/calesthio/OpenMontage.git && cd OpenMontage && make setup

More editing & clips skills

• Short-form FFmpeg cookbook: copyable commands for Reels: Footage into a 9:16 MP4 with FFmpeg: crop to vertical, burn captions, trim and join, music under the voice.
• Splice AI clips into a video with FFmpeg: Splice generated clips into an original video with ffmpeg without A/V drift: absolute trims, one audio track.
• Chengfeng Videocut: Chinese talking-head editing: word-level transcript, five-pass flub sweep, human review in a Studio, subtitles, export.
• Claude Code Video Toolkit: Open-source video workspace for Claude Code: script, voice, music, visuals and Remotion render on your own GPU account.
• Herk Edit Kit: Nate Herk's kit to edit talking-head videos, reels and Shorts: silence and flub cuts, storytelling, motion graphics.
• Clipify: Long videos into social clips: find funny lines or impact beats, cut, reframe to 9:16, burn word-by-word captions.