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Agent skill

Audio Volume Adjust

by godot-fun in godot-fun/gai

Adjusts audio file volume up or down using FFmpeg. An agent skill from godot-fun/gai.

MITAuto-check passedMedia & Creative

Install Audio Volume Adjust

skills CLI
$ npx skills add godot-fun/gai --skill audio-volume-adjust -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install godot-fun/gai audio-volume-adjust --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/audio-volume-adjust .claude/skills/audio-volume-adjust && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
audio-volume-adjust
GitHub stars
183
Token cost
~609 tokens
SKILL.md length
222 words
Files
2
Skills in repo
36
Repo updated
First seen
Licence
MIT

At a glance

Adjusts audio file volume up or down using FFmpeg. An agent skill from godot-fun/gai.

  • Works in 7 steps: Use the bundled script, not hand-written… → Always pass --volume in dB (negative =… → Missing Python/FFmpeg → populate… → …
  • The user wants to change volume
  • SKILL.md covers Rules, Quick Start, Adjustment Guidelines and Common Flags, plus 2 more sections
  • Calls python

What it does

Audio Volume Adjust is an agent skill from godot-fun/gai. Adjusts audio file volume up or down using FFmpeg. Use when the user wants to change volume, boost or reduce loudness, attenuate or amplify SFX/UI/BGM, apply dB gain, raise/lower clip levels, or batch-adjust audio amplitude.

Its SKILL.md is about 610 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `reference.md`).

It sits in Media & Creative, covering Video production. It works with FFmpeg. The repository describes itself as: A lightweight AI agent and skill workflow framework built with Godot. The licence is MIT.

When your agent uses it

  • The user wants to change volume
  • Reduce loudness
  • Amplify SFX/UI/BGM
  • Raise/lower clip levels

Example prompts

  • “Use the audio-volume-adjust skill to adjust audio file volume up or down using FFmpeg. An agent skill from godot-fun/gai”
  • “/audio-volume-adjust”

Requirements

  • Python 3

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

  1. Use the bundled script, not hand-written volume filters.
  2. Always pass --volume in dB (negative = reduce, positive = boost).
  3. Missing Python/FFmpeg → populate .dependency/ per skill-dependency-manager, retry same command.
  4. Do not copy, move, or replace the source with the adjusted output — tell the user where audio-volume-adjust/ files are; they swap assets…
  5. Do not use --output pointing at the source file; the script refuses output paths that would overwrite inputs.
  6. Boosting (positive dB) can clip peaks — warn the user; prefer small boosts (+3 dB or less).
  7. FFmpeg filter details and dB math: reference.md

What it can do on your machine

Read from SKILL.md and the folder at commit 6394686. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Audio Volume Adjust loads about 609 tokens when it runs. Until then it costs about 61 tokens; SKILL.md has 222 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~61
When it runs · the whole SKILL.md, loaded when a task matches
~609

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from godot-fun/gai at commit 6394686, republished under its MIT licence (© godot-fun). 222 words, ~609 tokens.

Download SKILL.mdSave it as .claude/skills/audio-volume-adjust/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
audio-volume-adjust
description
Adjusts audio file volume up or down using FFmpeg. Use when the user wants to change volume, boost or reduce loudness, attenuate or amplify SFX/UI/BGM, apply dB gain, raise/lower clip levels, or batch-adjust audio amplitude.

Audio Volume Adjust

Apply a uniform gain change across the full clip — no fade, no loudness targeting. Negative dB reduces level; positive dB increases it.

Rules

When this skill applies, read and follow skill-dependency-manager — run scripts as documented, install missing tools into .dependency/.

Quick Start

Reduce by 6 dB (~half amplitude), output to <audio-dir>/audio-volume-adjust/<audio-name>:

bash
.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio path/to/audio.wav --volume -6

Example: audio/sfx/tank/tank_move.wav → audio/sfx/tank/audio-volume-adjust/tank_move.wav

Boost by 3 dB:

bash
.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio audio/sfx.wav --volume 3

Adjustment Guidelines

Goal--volume (dB)
Slight reduction-3
Half amplitude-6
Noticeably quieter-9 to -12
Background / distant-15 to -20
Slight boost+3
Noticeably louder+6

Common Flags

--audio · --volume · -o / --output

bash
.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio audio/sfx.wav --volume -9

Originals are never modified. Input must be a single audio file (--audio), not a directory. Supported: .wav, .mp3, .ogg, .flac, .aac, .m4a, .wma.

Agent Notes

  1. Use the bundled script, not hand-written volume filters.
  2. Always pass --volume in dB (negative = reduce, positive = boost).
  3. Missing Python/FFmpeg → populate .dependency/ per skill-dependency-manager, retry same command.
  4. Do not copy, move, or replace the source with the adjusted output — tell the user where audio-volume-adjust/ files are; they swap assets manually when ready.
  5. Do not use --output pointing at the source file; the script refuses output paths that would overwrite inputs.
  6. Boosting (positive dB) can clip peaks — warn the user; prefer small boosts (+3 dB or less).
  7. FFmpeg filter details and dB math: reference.md

CLI

Copy-paste commands: cli/audio-volume-adjust.md

© godot-fun, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in .agents/skills/audio-volume-adjust of godot-fun/gai.

  • SKILL.md
  • reference.md

Open the folder on GitHubat commit 6394686

Compare with similar skills

Audio Volume Adjust next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Audio Volume Adjust compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Audio Volume Adjust this skillgodot-fun/gai183—~609Automated safety check: PassMIT
Video Understandcalesthio/OpenMontage66k—~841Automated safety check: PassAGPL-3.0
HyperFrames Video Entry Pointheygen-com/hyperframes60k3 repos~5.2kAutomated safety check: PassApache-2.0
Video Shotseternityspring/reelbench-skills8781 repos~1.8kAutomated safety check: NotesApache-2.0
Mobile Demo Film Editorsuperset-sh/superset15k—~1.8kAutomated safety check: PassCustom licence
Video Editcalesthio/OpenMontage66k—~855Automated safety check: NotesAGPL-3.0

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  • Audio Fade

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  • Audio Loudness Normalization

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  • Audio Sample Rate Standardize

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  • Audio Split

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Works with

Categories

Questions about Audio Volume Adjust

What does Audio Volume Adjust do?

Adjusts audio file volume up or down using FFmpeg. An agent skill from godot-fun/gai. Audio Volume Adjust is an agent skill from godot-fun/gai. Adjusts audio file volume up or down using FFmpeg.

When should I use Audio Volume Adjust?

Audio Volume Adjust fits situations like: the user wants to change volume; reduce loudness; amplify SFX/UI/BGM; raise/lower clip levels.

How do I install Audio Volume Adjust in Claude Code?

Run `npx skills add godot-fun/gai --skill audio-volume-adjust -a claude-code`. Or copy the skill folder (.agents/skills/audio-volume-adjust in godot-fun/gai) into .claude/skills/audio-volume-adjust in your project. Claude Code loads it when a task matches its description.

How do I install Audio Volume Adjust in Codex?

Run `npx skills add godot-fun/gai --skill audio-volume-adjust -a codex`. Or copy the skill folder (.agents/skills/audio-volume-adjust in godot-fun/gai) into .agents/skills/audio-volume-adjust in your project. Codex loads it when a task matches its description.

Can I use Audio Volume Adjust in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add godot-fun/gai --skill audio-volume-adjust -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/audio-volume-adjust, .gemini/skills/audio-volume-adjust, .github/skills/audio-volume-adjust and .opencode/skills/audio-volume-adjust in your project.

What does Audio Volume Adjust need to run?

Going by SKILL.md and its folder, Audio Volume Adjust needs the command-line tools its instructions call (python). Our summary lists: Python 3.

Does Audio Volume Adjust access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Audio Volume Adjust safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Audio Volume Adjust use?

Audio Volume Adjust is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Audio Volume Adjust use?

About 609 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Audio Volume Adjust?

Skills that share tags, products or a category with Audio Volume Adjust: Video Understand (calesthio/OpenMontage, 66k stars), HyperFrames Video Entry Point (heygen-com/hyperframes, 60k stars), Video Shots (eternityspring/reelbench-skills, 878 stars) and Mobile Demo Film Editor (superset-sh/superset, 15k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Audio Volume Adjust?

godot-fun (a GitHub organization) maintains it in godot-fun/gai, which has 183 GitHub stars. The repository holds 36 skills in this directory. The repository was last updated on October 10, 2026.

Source: godot-fun/gai on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.