Audio Fade
Applies fade-in and fade-out at the start and end of audio files using FFmpeg. Use when the user wants audio fade, fade in/out, smooth attack/release, crossfade prep, batch SFX envelope shaping, or mentions afade.
Install
$ agentstack add skill-godot-fun-godot-framework-audio-fade ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-godot-fun-godot-framework-audio-fade) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
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](../../rules/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 faded/:
.dependency/python/python .cursor/skills/audio-fade/scripts/fade.py path/to/audio_or_folderFade-in only (keep full end level):
.dependency/python/python .cursor/skills/audio-fade/scripts/fade.py path/to/audio.wav --no-fade-outCustom durations (seconds):
.dependency/python/python .cursor/skills/audio-fade/scripts/fade.py Audio/SFX -fi 0.05 -fo 0.15 -rDuration 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
-fi / --fade-in · -fo / --fade-out · --no-fade-in · --no-fade-out · -c / --curve · -r · -o / --output-dir · --dry-run · --overwrite
.dependency/python/python .cursor/skills/audio-fade/scripts/fade.py Audio/SFX -fi 0.03 -fo 0.08 -c exp -r --dry-runOriginals are never modified. Supported: .wav, .mp3, .ogg, .flac, .aac, .m4a, .wma.
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. - FFmpeg filter details and curves: [reference.md](reference.md)
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: godot-fun
- Source: godot-fun/godot-framework
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.