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Army161/OpenMontage

Download video and audio from YouTube and 1000+ sites using yt-dlp. No API keys needed. Use when: (1) Downloading a video from YouTube or other sites, (2) Extracting audio from a video URL, (3) Downloading subtitles/captions from a video, (4) Getting video metadata without downloading.

¿Qué es OpenMontage?

OpenMontage is a Claude Code agent skill that download video and audio from YouTube and 1000+ sites using yt-dlp. No API keys needed. Use when: (1) Downloading a video from YouTube or other sites, (2) Extracting audio from a video URL, (3) Downloading subtitles/captions from a video, (4) Getting video metadata without downloading.

Compatible con~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/Army161/OpenMontage/tree/HEAD/.agents/skills/video-download
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Documentación

video-download

Download video and audio from URLs using yt-dlp directly. No wrapper scripts needed.

Prerequisites

  • yt-dlp: brew install yt-dlp or pip install yt-dlp
  • ffmpeg: brew install ffmpeg or apt install ffmpeg (required for merging video+audio streams)

Update yt-dlp periodically to keep up with site changes: yt-dlp -U or pip install -U yt-dlp.

Commands

Download best quality

yt-dlp "URL" -o "%(title)s.%(ext)s" --merge-output-format mp4

Download specific resolution

# 720p
yt-dlp "URL" -f "bestvideo[height<=720]+bestaudio/best[height<=720]" --merge-output-format mp4

# 1080p
yt-dlp "URL" -f "bestvideo[height<=1080]+bestaudio/best[height<=1080]" --merge-output-format mp4

Audio only

yt-dlp "URL" -x --audio-format mp3 --audio-quality 0

Download subtitles

# Download video with English subtitles
yt-dlp "URL" --write-subs --sub-langs en --merge-output-format mp4

# Download video with multiple subtitle languages
yt-dlp "URL" --write-subs --sub-langs "en,es,fr" --merge-output-format mp4

# Download only subtitles (no video)
yt-dlp "URL" --write-subs --sub-langs en --skip-download

Get metadata (no download)

yt-dlp "URL" --dump-json --no-download

List available formats

yt-dlp "URL" -F

Specify output directory

yt-dlp "URL" -o "./downloads/%(title)s.%(ext)s" --merge-output-format mp4

Quality Presets

QualityFormat flag
Best-f "bestvideo+bestaudio/best" (default)
1080p-f "bestvideo[height<=1080]+bestaudio/best[height<=1080]"
720p-f "bestvideo[height<=720]+bestaudio/best[height<=720]"
480p-f "bestvideo[height<=480]+bestaudio/best[height<=480]"
Worst-f "worstvideo+worstaudio/worst"

Output Template Variables

Common variables for -o templates:

VariableDescription
%(title)sVideo title
%(ext)sFile extension
%(id)sVideo ID
%(uploader)sChannel/uploader name
%(upload_date)sUpload date (YYYYMMDD)
%(duration)sDuration in seconds
%(resolution)sVideo resolution

Tips

  • Always use --merge-output-format mp4 to avoid ending up with .webm or .mkv files.
  • Use --no-download with --dump-json for metadata-only queries -- no files written to disk.
  • If a download fails with HTTP errors, update yt-dlp first (yt-dlp -U).
  • Use -f "bestvideo[height<=720]+bestaudio" to save bandwidth when full resolution is not needed.
  • yt-dlp automatically handles rate limiting and retries.
  • The --dump-json output includes title, duration, uploader, view_count, description, formats, subtitles, and much more.

Troubleshooting

  • "yt-dlp: command not found": Install it (pip install yt-dlp) and ensure your PATH includes pip's bin directory.
  • "ffmpeg: command not found": Install ffmpeg. Without it, downloads fail when video and audio are separate streams (common on YouTube for HD).
  • Downloads fail or return errors: Run yt-dlp -U to update. Sites change frequently and yt-dlp ships fixes regularly.

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

Army161/OpenMontage

Generate AI videos from text prompts using multiple provider gateways. Use when: (1) Generating videos from text descriptions, (2) Creating AI-generated video clips for content production, (3) Image-to-video generation with a reference image, (4) Choosing between video generation providers (VEO, Kling, Sora, Runway, Seedance, MiniMax). Supports two gateways: HeyGen API and fal.ai API.

Army161/OpenMontage

Create AI avatar videos with precise control over avatars, voices, scripts, scenes, and backgrounds using HeyGen's v2 API. Use when: (1) Choosing a specific avatar and voice for a video, (2) Writing exact scripts for an avatar to speak, (3) Building multi-scene videos with different backgrounds per scene, (4) Creating transparent WebM videos for compositing, (5) Using talking photos as video presenters, (6) Integrating HeyGen avatars with Remotion, (7) Batch video generation with exact specs, (8) Brand-consistent production videos with precise control.

Army161/OpenMontage

Use p5.js/canvas for local procedural character effects: particles, weather, squash/stretch, walk cycles, and environmental motion.

Army161/OpenMontage

Review local character animation with schema checks, Playwright browser previews, frame sampling, and FFmpeg/ffprobe final output checks.

Army161/OpenMontage

Create videos from a text prompt using HeyGen's Video Agent. Use when: (1) Creating a video from a description or idea, (2) Generating explainer, demo, or marketing videos from a prompt, (3) Making a video without specifying exact avatars, voices, or scenes, (4) Quick video prototyping or drafts, (5) One-shot prompt-to-video generation, (6) User says "make me a video" or "create a video about X".

Army161/OpenMontage

Generate Mandarin and multilingual narration with Volcengine Doubao Speech 2.0. Use when creating Chinese voiceovers, when the user prefers Doubao/Volcengine/火山引擎/豆包 TTS, or when narration needs character-level timestamp metadata for subtitles.

Army161/OpenMontage

Video and audio processing with FFmpeg. Use for format conversion, resizing, compression, audio extraction, and preparing assets for Remotion. Triggers include converting GIF to MP4, resizing video, extracting audio, compressing files, or any media transformation task.

Army161/OpenMontage

Use when implementing Disney's 12 animation principles with Framer Motion in React applications

Army161/OpenMontage

All animation knowledge for HyperFrames — atomic motion rules, multi-phase scene blueprints, scene transitions, broader motion-design techniques, AND the seven runtime adapters (GSAP default, plus Lottie, Three.js, Anime.js, CSS keyframes, Web Animations API, TypeGPU). Use for any motion or animation task: pick 2-4 rules and compose, or load a blueprint, or look up runtime-specific API (e.g. GSAP eases / Lottie player / Three.js mixer). HyperFrames-native: single paused timeline, seek-safe, deterministic.

Army161/OpenMontage

HyperFrames CLI dev loop. Use when running npx hyperframes init, add, catalog, capture, lint, validate, inspect, layout, snapshot, preview, play, render, publish, lambda, doctor, browser, info, upgrade, skills, compositions, docs, benchmark, telemetry, transcribe, tts, or remove-background, or when troubleshooting the HyperFrames build/render environment. Entry point for AWS Lambda cloud rendering (`hyperframes lambda deploy / render / progress / destroy / policies`).

Army161/OpenMontage

The HyperFrames composition contract — build one renderable project. Use for composition structure, the `data-*` timing attributes, `class="clip"`, tracks, sub-compositions, variables, framework-owned media playback, deterministic-render rules, and validation. Read before writing composition HTML.

Army161/OpenMontage

Non-animation creative direction for HyperFrames videos. Use for design spec (frame.md / design.md) handling, palettes, typography, narration, beat planning, audio-reactive visuals, composition patterns, and brand / style decisions. For atomic motion patterns and scene blueprints, use `hyperframes-animation`.

Army161/OpenMontage

Audio and media assets for HyperFrames compositions, produced by one shared audio engine (`scripts/audio.mjs`) — multi-provider TTS (HeyGen / ElevenLabs / Kokoro local), background music + sound effects (HeyGen audio-library retrieval by default, with local Lyria / MusicGen BGM generation and a bundled SFX library as the no-credential fallback), Whisper transcription, background removal, and caption authoring. Use for voiceover / TTS, BGM, SFX / sound effects, transcription, captions / subtitles / lyrics / karaoke / per-word styling, voice + provider selection, and music-mood prompting.

Army161/OpenMontage

Install and wire registry blocks and components into HyperFrames compositions. Use when running hyperframes add, installing a block or component, wiring an installed item into index.html, or working with hyperframes.json. Covers the add command, install locations, block sub-composition wiring, component snippet merging, registry discovery, and authoring a new block or component to contribute upstream (idea → scaffold → validate → PR).

Army161/OpenMontage

Use when the user wants a short, design-led motion graphic where motion is the message: kinetic typography, stat or number count-up, chart/data-viz hit, logo sting, brand lockup, lower-third, callout, social overlay, animated headline/tweet/news item, motion poster, or quick captured-page highlight. Usually under 10s and up to ~30s, with no narration arc, voice-over, or live-action subject. Can render to MP4 or transparent overlay. Not for longer, multi-scene, narrated, or brand-reel pieces (use general-video), narrated website videos (website-to-video), topic explainers (faceless-explainer), product promos (product-launch-video), PR videos (pr-to-video), or captions on existing footage (embedded-captions). When unsure whether it's a quick motion-first piece or a longer / narrated treatment, see /hyperframes.

Army161/OpenMontage

Use when the user has a music track (an audio file, or a video to pull audio from) and wants a beat-synced HyperFrames video, calm to hard-hitting. The music drives everything: one analyzer reads it once, the orchestrator lays out the frames and fills a per-frame plan, and one sub-agent builds each frame. Typography and templates are the floor — a complete video needs zero assets — but any images or videos the user supplies are cut into the frames on the same beat grid (beat-cut / ken-burns). The genre (lyric video, slideshow, kinetic promo) falls out of the per-frame choices; the pipeline never branches on it.

Army161/OpenMontage

Best practices for Remotion - Video creation in React

Army161/OpenMontage

Toolkit-specific Remotion patterns — custom transitions, shared components, and project conventions. For core Remotion framework knowledge (hooks, animations, rendering, etc.), see the `remotion-official` skill.

Army161/OpenMontage

Port an existing Remotion (React) composition to HyperFrames HTML. Use ONLY when the user explicitly asks to port/convert/migrate/translate a Remotion source. Do NOT use: (a) authoring a new HyperFrames composition; (b) Remotion mentioned in passing; (c) Remotion code shared as reference only; (d) "same video as my Remotion one" without explicit migrate request — treat as fresh build. Doubt → `/general-video`. One-way, Remotion-only: no reverse export (HyperFrames→Remotion or any framework), no non-Remotion source (After Effects, Framer Motion, plain React/CSS) → out of scope, re-create via `/general-video`. Flags unsupported patterns (useState, useEffect, async calculateMetadata, third-party React libs, `@remotion/lambda`) and recommends runtime interop over lossy translation. Unsure whether to port vs. build fresh, or only a passing Remotion mention? → /hyperframes.

Army161/OpenMontage

Animate SVG character rigs with GSAP, CSS transforms, Remotion frame control, and HyperFrames-compatible browser previews.

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