Video Understand
calesthio/OpenMontage
Understand video content locally using ffmpeg frame extraction and Whisper transcription.
Applies fade-in and fade-out at the start and end of a single audio file using FFmpeg.
Install Audio Fade
$ npx skills add godot-fun/gai --skill audio-fade -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install godot-fun/gai audio-fade --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/audio-fade .claude/skills/audio-fade && rm -rf skills-srcUse ~/.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/
Install the "audio-fade" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/audio-fade into .claude/skills/audio-fade/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audio-fade", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/godot-fun/gai/tree/main/.agents/skills/audio-fadeType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add godot-fun/gai --skill audio-fade -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install godot-fun/gai audio-fade --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/audio-fade .agents/skills/audio-fade && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "audio-fade" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/audio-fade into .agents/skills/audio-fade/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audio-fade", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add godot-fun/gai --skill audio-fade -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install godot-fun/gai audio-fade --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/audio-fade .cursor/skills/audio-fade && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "audio-fade" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/audio-fade into .cursor/skills/audio-fade/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audio-fade", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/godot-fun/gai.git --path .agents/skills/audio-fade--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add godot-fun/gai --skill audio-fade -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install godot-fun/gai audio-fade --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/audio-fade .gemini/skills/audio-fade && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "audio-fade" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/audio-fade into .gemini/skills/audio-fade/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audio-fade", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install godot-fun/gai audio-fadeInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add godot-fun/gai --skill audio-fade -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/audio-fade .github/skills/audio-fade && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "audio-fade" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/audio-fade into .github/skills/audio-fade/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audio-fade", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add godot-fun/gai --skill audio-fade -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install godot-fun/gai audio-fade --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/audio-fade .opencode/skills/audio-fade && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "audio-fade" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/audio-fade into .opencode/skills/audio-fade/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audio-fade", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
audio-fade- GitHub stars
- 183
- Token cost
- ~652 tokens
- SKILL.md length
- 246 words
- Files
- 1
- Skills in repo
- 36
- Repo updated
- First seen
- Licence
- MIT
At a glance
Applies fade-in and fade-out at the start and end of a single audio file using FFmpeg.
- Works in 4 steps: Use the bundled script, not hand-written… → Looping BGM — avoid fade-out on loop… → Clicks with instant attack →… → …
- The user wants audio fade
- SKILL.md covers Rules, Quick Start, Duration Guidelines and Common Flags, plus 3 more sections
- Calls python
What it does
Audio Fade is an agent skill from godot-fun/gai. Applies fade-in and fade-out at the start and end of a single audio file using FFmpeg. Use when the user wants audio fade, fade in/out, smooth attack/release, crossfade prep, SFX envelope shaping, or mentions afade.
Its SKILL.md is about 650 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
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 audio fade
- Smooth attack/release
- SFX envelope shaping
Example prompts
- “Use the audio-fade skill to apply fade-in and fade-out at the start and end of a single audio file using FFmpeg”
- “/audio-fade”
Requirements
- Python 3
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Use the bundled script, not hand-written afade filters.
- Looping BGM — avoid fade-out on loop assets; use --no-fade-out or fade-in only for one-shot intros.
- Clicks with instant attack → --no-fade-in or lower -fi (e.g. 0.01).
- Tail cut off abruptly after fade → increase -fo; tail too soft → decrease -fo.
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 Fade loads about 652 tokens when it runs. Until then it costs about 57 tokens; SKILL.md has 246 words of instructions outside code blocks.
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). 246 words, ~652 tokens.
Download SKILL.mdSave it as
.claude/skills/audio-fade/SKILL.md (or your agent's skills folder).- name
- audio-fade
- description
- Applies fade-in and fade-out at the start and end of a single audio file using FFmpeg. Use when the user wants audio fade, fade in/out, smooth attack/release, crossfade prep, SFX envelope shaping, or mentions afade.
Audio Fade
Apply fade-in at the start and fade-out at the end without changing clip length.
Rules
When this skill applies, read and follow skill-dependency-manager — run scripts as documented, install missing tools into .dependency/.
Quick Start
Default: 1 s fade-in and fade-out, output to <audio-dir>/audio-fade/<audio-name>:
.dependency/python/python .ai/audio-fade/fade.py --audio path/to/audio.wavFade-in only (keep full end level):
.dependency/python/python .ai/audio-fade/fade.py --audio path/to/audio.wav --no-fade-outCustom durations (seconds):
.dependency/python/python .ai/audio-fade/fade.py --audio audio/sfx.wav -fi 0.05 -fo 0.15Duration Guidelines
| Asset | Fade-in | Fade-out |
|---|---|---|
| UI clicks / ticks | 0.01–0.05 s | 0.02–0.08 s |
| Impacts / weapons | 0.02–0.08 s | 0.05–0.15 s |
| Voice lines | 0.05–0.15 s | 0.1–0.25 s |
| Ambience beds | 0.3–1.0 s | 0.5–2.0 s |
| BGM one-shots | 0.2–0.5 s | 0.3–1.0 s |
Fade-in + fade-out must stay shorter than file duration. Very short clips need smaller values.
Common Flags
--audio · -fi / --fade-in · -fo / --fade-out · --no-fade-in · --no-fade-out · -o / --output
.dependency/python/python .ai/audio-fade/fade.py --audio audio/sfx.wav -fi 0.03 -fo 0.08Originals are never modified. Input must be a single audio file (--audio), not a directory. Supported: .wav, .mp3, .ogg, .flac, .aac, .m4a, .wma.
Fades use FFmpeg afade with the linear tri curve. The script probes clip duration and places fade-out at duration - fade_out.
Scope
- Fade shapes volume at clip boundaries without changing its duration.
- Trim removes silence or crops boundaries; use the
audio-trimskill. - Crossfade overlaps two clips and is not performed by this skill.
Agent Notes
- Use the bundled script, not hand-written
afadefilters. - Looping BGM — avoid fade-out on loop assets; use
--no-fade-outor fade-in only for one-shot intros. - Clicks with instant attack →
--no-fade-inor lower-fi(e.g.0.01). - Tail cut off abruptly after fade → increase
-fo; tail too soft → decrease-fo.
CLI
Copy-paste commands: cli/audio-fade.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
Just SKILL.md in .agents/skills/audio-fade of godot-fun/gai.
Open the folder on GitHubat commit 6394686
Compare with similar skills
Audio Fade 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Audio Fade this skillgodot-fun/gai | 183 | — | ~652 | Automated safety check: Pass | MIT | |
| Video Understandcalesthio/OpenMontage | 66k | — | ~841 | Automated safety check: Pass | AGPL-3.0 | |
| HyperFrames Video Entry Pointheygen-com/hyperframes | 60k | 3 repos | ~5.2k | Automated safety check: Pass | Apache-2.0 | |
| Video Shotseternityspring/reelbench-skills | 878 | 1 repos | ~1.8k | Automated safety check: Notes | Apache-2.0 | |
| Mobile Demo Film Editorsuperset-sh/superset | 15k | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Video Editcalesthio/OpenMontage | 66k | — | ~855 | Automated safety check: Notes | AGPL-3.0 |
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Related
Works with
Categories
Questions about Audio Fade
What does Audio Fade do?
Applies fade-in and fade-out at the start and end of a single audio file using FFmpeg. Audio Fade is an agent skill from godot-fun/gai. Applies fade-in and fade-out at the start and end of a single audio file using FFmpeg.
When should I use Audio Fade?
Audio Fade fits situations like: the user wants audio fade; smooth attack/release; SFX envelope shaping.
How do I install Audio Fade in Claude Code?
Run `npx skills add godot-fun/gai --skill audio-fade -a claude-code`. Or copy the skill folder (.agents/skills/audio-fade in godot-fun/gai) into .claude/skills/audio-fade in your project. Claude Code loads it when a task matches its description.
How do I install Audio Fade in Codex?
Run `npx skills add godot-fun/gai --skill audio-fade -a codex`. Or copy the skill folder (.agents/skills/audio-fade in godot-fun/gai) into .agents/skills/audio-fade in your project. Codex loads it when a task matches its description.
Can I use Audio Fade 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-fade -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-fade, .gemini/skills/audio-fade, .github/skills/audio-fade and .opencode/skills/audio-fade in your project.
What does Audio Fade need to run?
Going by SKILL.md and its folder, Audio Fade needs the command-line tools its instructions call (python). Our summary lists: Python 3.
Does Audio Fade 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 Fade 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 Fade use?
Audio Fade 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 Fade use?
About 652 tokens (SKILL.md is roughly 2.6k 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 Fade?
Skills that share tags, products or a category with Audio Fade: 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 Fade?
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.