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PrunaAIPrunaAI/pruna-skills/skills/audio/stable-audio-2.5/SKILL.md

stable-audio-2.5

Skill20 starsChanged 44 days agoApache-2.0View on GitHub

Use when someone wants light instrumental background music — an ambient bed under dialogue or underscore for reels and explainers.

  • Reads credentials
  • Sends data out

The file

We split this skill into the rules it gives an agent

2 rules. About 0 are common, 2 are distinctive, and 0 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈2

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Follow each skill's Before generating / craft sections — do not restate guide content here.

    line 24
  2. Distinctive:

    Use a different skill instead:

    line 32

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Prerequisites

Install and load these skills before generating (skip if already in context via @pruna):

SkillDescriptionInstall
generation-diversityUse when writing any generative prompt — ritual seed, explicit structure, scenario axes, and quality gates before paid API calls.npx skills add PrunaAI/pruna-skills@generation-diversity -y
audio-promptingUse when crafting TTS, music, or bed prompts for any generative audio model — director style, song structure, and post-production layering.npx skills add PrunaAI/pruna-skills@audio-prompting -y
pruna-apiUse before any Pruna or Replicate HTTP call — credentials, upload/poll/download, parallel batches, and agent safety.npx skills add PrunaAI/pruna-skills@pruna-api -y

Or install the full suite once: npx skills add PrunaAI/pruna-skills@pruna -y

Follow each skill's Before generating / craft sections — do not restate guide content here.

Agent habit

In the first reply, name `stable-audio-2.5` in backticks, confirm REPLICATE_API_TOKEN (or stop with signup links from pruna-api), then ask for required inputs. Open intake → generation-diversity clarification intake before the first POST. Redirect when When NOT to use fits better.

When NOT to use

Use a different skill instead:

SkillDescriptionInstall
music-2.5Use when someone wants an original AI song with vocals — sung lyrics, a style prompt track, or source audio for a music video.npx skills add PrunaAI/pruna-skills@music-2.5 -y
gemini-3.1-flash-ttsUse when someone needs spoken narration or voiceover — explainer tracks, documentary lines, or voice to pair with generated video.npx skills add PrunaAI/pruna-skills@gemini-3.1-flash-tts -y

Environment

export REPLICATE_API_TOKEN=r8_...

Requires ffmpeg and ffprobe on PATH for the mix step.

HTTP (curl)

curl -s -X POST \
  -H "Authorization: Bearer ${REPLICATE_API_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{
    "input": {
      "prompt": "Instrumental light electronic pop bed, soft groove and mellow synth pads, calm positive tech atmosphere, understated background music, no vocals, 94 BPM",
      "duration": 90,
      "steps": 8,
      "cfg_scale": 1
    }
  }' \
  "https://api.replicate.com/v1/models/stability-ai/stable-audio-2.5/predictions"

Poll urls.get until status is succeeded; download output MP3.

Before generating

  1. Complete Prerequisites guide reading order — bed prompt craft: audio-prompting Worked examples (instrumental bed).
  2. Confirm prompt, duration (match or slightly exceed reel length), and mix volume (~0.08–0.15 under VO). When listing fields, name REPLICATE_API_TOKEN (Replicate — not PRUNA_API_KEY).
  3. Model notes: lead with Instrumental and no vocals. Duration 1–190s. Prefer understated beds (BPM ~88–98 for tech launch reels) so music does not compete with dialogue.

Required input

  • prompt (string)

Common optional fields

  • duration — seconds, 1–190
  • steps — 4–8 (default 8)
  • cfg_scale — 1–25 (default 1)
  • seed — optional integer

Typical next steps

Common follow-ons after this skill:

SkillDescriptionInstall
gemini-3.1-flash-ttsUse when someone needs spoken narration or voiceover — explainer tracks, documentary lines, or voice to pair with generated video.npx skills add PrunaAI/pruna-skills@gemini-3.1-flash-tts -y
visual-transition-reelUse when someone wants a montage with transitions between shots — action-sequence reel or multi-scene piece where narration is optional.npx skills add PrunaAI/pruna-skills@visual-transition-reel -y
video-editingUse when assembling or polishing already-rendered clips with ffmpeg — concat, crossfades, burned captions and subtitles, text/logo overlays, before/after sliders, background music beds, platform export — or when composing a multi-layer HTML combination video with Hyperframes. Not for AI video generation, prompt craft, or model-based video edits.npx skills add PrunaAI/pruna-skills@video-editing -y

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