Home / godot-fun / gai · .agents/skills/audio-fade/SKILL.md · GitHub

audio-fade skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, same audit grade.

audio-fade is agent-read markdown (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..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

What the file says

# 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](../skill-dependency-manager.md) — 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>`:

```bash
.dependency/python/python .ai/audio-fade/fade.py --audio path/to/audio.wav
```

Fade-in only (keep full end level):

```bash
.dependency/python/python .ai/audio-fade/fade.py --audio path/to/audio.wav --no-fade-out
```

Custom durations (seconds):

```bash
.dependency/python/python .ai/audio-fade/fade.py --audio audio/sfx.wav -fi 0.05 -fo 0.15
```

## Duration 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
…

Read the whole file at its exact version.

How to install

Latest version
mdr add godot-fun/gai/audio-fade@git:20260918.a3d4acf
Exact content
mdr add godot-fun/gai/audio-fade@sha256:af77ab9d73f47756

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_kopuk3tiuyndhlca.svg)](https://markdownregistry.com/a/art_kopuk3tiuyndhlca)

1 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260918.a3d4acf latest2026-09-18 a3d4acf 2,640 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2640 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

godot-fun/gai · 171 stars · license MIT · pushed 2026-09-24 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_kopuk3tiuyndhlca
GET https://markdownregistry.com/api/v1/resolve?ref=godot-fun/gai/audio-fade
GET https://markdownregistry.com/api/v1/blob/af77ab9d73f477564fb7875750e140f0485f2870192e4bb68c60cdaccb823fe6

Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

More from godot-fun/gai

AGENTS.md@.agents/skills agents
godot-fun/gai · .agents/skills/AGENTS.md
git:20260918.a3d4acf · audit B · 171 stars
ai-text-to-speech skill
godot-fun/gai · .agents/skills/ai-text-to-speech/SKILL.md · Zero-shot text-to-speech with voice cloning via IndexTTS2 (index-tts). Synthesizes speech from text using a…
git:20260918.a3d4acf · audit A · 171 stars
audio-denoise skill
godot-fun/gai · .agents/skills/audio-denoise/SKILL.md · Reduces background noise in a single audio file using FFmpeg afftdn. Use when the user wants audio denoise, noise…
git:20260918.a3d4acf · audit A · 171 stars
audio-loudness-normalization skill
godot-fun/gai · .agents/skills/audio-loudness-normalization/SKILL.md · Normalizes a single audio file to consistent LUFS loudness with true-peak limiting using FFmpeg. Use when the user…
git:20260918.a3d4acf · audit A · 171 stars
audio-sample-rate-standardize skill
godot-fun/gai · .agents/skills/audio-sample-rate-standardize/SKILL.md · Standardizes a single audio file to 44100 or 48000 Hz and exports 16-bit PCM WAV using FFmpeg. Use when the user wants…
git:20260918.a3d4acf · audit A · 171 stars
audio-split skill
godot-fun/gai · .agents/skills/audio-split/SKILL.md · Splits a single audio file into two segments (part 1 before the split point, part 2 after) using FFmpeg. Use when the…
git:20260918.a3d4acf · audit A · 171 stars
audio-to-ogg skill
godot-fun/gai · .agents/skills/audio-to-ogg/SKILL.md · Converts a single audio file to OGG Vorbis using FFmpeg for Godot-ready compressed assets. Use when the user wants to…
git:20260918.a3d4acf · audit A · 171 stars
audio-to-wav skill
godot-fun/gai · .agents/skills/audio-to-wav/SKILL.md · Converts a single audio file to WAV (PCM) using FFmpeg while preserving source quality. Use when the user wants to…
git:20260918.a3d4acf · audit A · 171 stars
audio-trim skill
godot-fun/gai · .agents/skills/audio-trim/SKILL.md · Trims leading and trailing silence from audio files using FFmpeg. Use when the user wants audio trim, trim silence at…
git:20260918.a3d4acf · audit A · 171 stars
audio-volume-adjust skill
godot-fun/gai · .agents/skills/audio-volume-adjust/SKILL.md · Adjusts audio file volume up or down using FFmpeg. Use when the user wants to change volume, boost or reduce loudness…
git:20260918.a3d4acf · audit A · 171 stars
file-naming-normalization skill
godot-fun/gai · .agents/skills/file-naming-normalization/SKILL.md · Normalizes asset filenames by splitting on common separators, stripping asset IDs and optional user strings from each…
git:20260918.a3d4acf · audit A · 171 stars
git-commit-message skill
godot-fun/gai · .agents/skills/git-commit-message/SKILL.md · Generate single-line Conventional Commits messages by analyzing git diffs and repository history. Use when the user…
git:20260918.a3d4acf · audit A · 171 stars

Every file in godot-fun/gai

Other files named audio-fade

audio-fade skill
godot-fun/godot-agent · .agents/skills/audio-fade/SKILL.md · Applies fade-in and fade-out at the start and end of a single audio file using FFmpeg. Use when the user wants audio…
git:20260918.a3d4acf · audit A · 170 stars

Browse by kind, by grade A, or by owner.