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harvatechsharvatechs/inthon/.agents/skills/hyperframes-media/SKILL.md

hyperframes-media

Skill2 starsChanged 4 months agoApache-2.0View on GitHub

Asset preprocessing for HyperFrames compositions — multi-provider TTS (HeyGen / ElevenLabs / Kokoro local), multi-provider BGM (Google Lyria / local MusicGen), Whisper transcription, background removal, and caption authoring. Use for npx hyperframes tts, bgm, transcribe, remove-background, voice/provider selection, music-mood prompting, captions / subtitles / lyrics / karaoke / per-word styling.

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The file

We split this skill into the rules it gives an agent

1 rule. 0 are common, 0 are distinctive, and 1 is very specific to this project.

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    Common

    Most of the 14 edited versions we read keep these.

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    Distinctive

    This author's own choices. Worth a look.

  • 1

    Very specific

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  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    HeyGen returns word timestamps; ElevenLabs / Kokoro do not: When you want captions, either pass --words to HeyGen and use that JSON …

    line 50

“Common” is measured: kept by at least 6 in 10 of the 14 edited versions of this file we could read. “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

HyperFrames Media

CLI commands that create assets (tts, bgm, transcribe, remove-background), plus everything needed to consume and animate transcript data in HTML. For placing assets into compositions, see hyperframes-core.

Provider chains (auto-detected from env)

TTS — npx hyperframes tts "..." picks the first available provider:

OrderProviderDetected whenWord timestamps
1HeyGen (Starfish)$HEYGEN_API_KEY / hyperframes auth loginYes, native — pass --words narration.words.json to capture
2ElevenLabs$ELEVENLABS_API_KEY setNo — chain transcribe after
3Kokoro-82M (local, 54 voices)always (no key required)No — chain transcribe after

If the installed hyperframes tts is the local-only build (its --help says "Kokoro-82M" and has no --provider/--words flags), it silently falls back to Kokoro even with $HEYGEN_API_KEY set. To force HeyGen regardless of CLI version, use the self-contained scripts/heygen-tts.mjs (see references/tts.md).

BGM — npx hyperframes bgm --duration N:

OrderProviderDetected when
1Google Lyria (RealTime)$GEMINI_API_KEY or $GOOGLE_API_KEY set
2MusicGen (facebook/musicgen-small, local)Python transformers + torch + soundfile installed

Override either with --provider <name>.

Routing

TaskRead
npx hyperframes tts — provider chain, voice IDs, words.jsonreferences/tts.md
HeyGen without the CLI — self-contained REST script (wav + words)scripts/heygen-tts.mjs (see references/tts.md)
npx hyperframes bgm — Lyria vs MusicGen, mood prompts, tuningreferences/bgm.md
npx hyperframes transcribe — Whisper, model rules, output shapereferences/transcribe.md
npx hyperframes remove-background — transparent cutoutsreferences/remove-background.md
TTS → transcription → captions (no recorded voiceover)references/tts-to-captions.md
Caption authoring — style detection, layout, word grouping, exitreferences/captions/authoring.md
Transcript handling — input formats, quality gates, cleanup, APIsreferences/captions/transcript-handling.md
Caption motion — karaoke, marker effects, audio-reactivereferences/captions/motion.md
Model caches, system dependencies, troubleshootingreferences/requirements.md

Non-negotiable rules

  • Voice IDs are provider-specific. am_michael is Kokoro-only; HeyGen UUIDs don't work on Kokoro. If you pass --voice, also pin --provider to avoid silent provider drift when the user's env changes.
  • Always pass --model to transcribe. The CLI default small.en silently translates non-English audio. See references/transcribe.md → "Language Rule".
  • HeyGen returns word timestamps; ElevenLabs / Kokoro do not. When you want captions, either pass --words to HeyGen and use that JSON directly, or run transcribe against the audio file. Don't assume word data is always there.
  • Captions consume the flat word-array format with { id, text, start, end }. See references/transcribe.md → "Output Shape".
  • remove-background --background-output is hole-cut, not inpainted. For "scene without the person", a different tool is needed. See references/remove-background.md → "When NOT the right tool".

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