Video editing

Video editing

Vendor-neutral craft for local post-production on finished media. Works with any clips, stills, VO, or beds you already have — Pruna-generated or not.

This skill is not AI video editing. It does not write motion prompts, call p-video, or replace people in footage. Generate first with Pruna tools or workflows; assemble and polish here.

Install

Skill	Description	Install
video-editing	Use 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
generation-diversity	Use 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

When to use

• Stitch multiple rendered clips (hard cut or crossfade)
• Burn in phrase-bar + word-accent captions (stable white line + purple spoken word, launch-style) or line-block subtitles on finished video
• Add title cards, lower-thirds, or logo watermarks
• Build before/after or side-by-side comparison clips
• Mix an instrumental bed under dialogue or VO (~20% default for launch/promo)
• Export for social aspect ratios (9:16, 1:1, 16:9) with loudness normalization
• Compose a combination video with UI chrome, chat mocks, or multi-panel layouts via Hyperframes (optional — see combination-hyperframes.md)

Works with

Any finished MP4/MOV/WebM plus local ffmpeg/ffprobe. Caption alignment via Replicate whisperx. Bed generation via stable-audio-2.5. Credentials and uploads via pruna-api.

When NOT to use

Use a different skill instead:

Skill	Description	Install
video-prompting	Use when crafting video or motion prompts for any generative model — dramaturgy, camera, physics-safe motion, frame anchors, and clip chaining.	npx skills add PrunaAI/pruna-skills@video-prompting -y
p-video	Use when someone wants one short video clip from text or images — B-roll, start/end frame animation, or a quick motion shot. Not for full multi-scene films or lip-synced hosts.	npx skills add PrunaAI/pruna-skills@p-video -y
p-video-avatar	Use when someone wants a person on camera speaking a script — lip-synced host, spokesperson, or narrated avatar from a portrait photo.	npx skills add PrunaAI/pruna-skills@p-video-avatar -y
p-video-animate	Use when someone wants a photo to move like another video — motion transfer, dance remixes, or performance variations from a template clip.	npx skills add PrunaAI/pruna-skills@p-video-animate -y
p-video-replace	Use when someone wants to swap a person, outfit, or product inside existing footage while keeping the camera move and audio.	npx skills add PrunaAI/pruna-skills@p-video-replace -y
p-image-edit	Use when someone wants to edit an existing photo — change outfits or backgrounds, compose from reference images, or apply prompt-driven edits.	npx skills add PrunaAI/pruna-skills@p-image-edit -y
music-video	Use when someone wants a full music video — original song or vocals, performance clips, B-roll, and lyric-synced edits.	npx skills add PrunaAI/pruna-skills@music-video -y
narrated-multi-scene	Use when someone wants a multi-part story with voiceover — episodic B-roll, chaptered promo, or several linked video scenes without on-camera dialogue.	npx skills add PrunaAI/pruna-skills@narrated-multi-scene -y

Guide habit

In the first reply, name `video-editing` in backticks. Confirm inputs exist on disk (clips, optional bed, optional logo). Confirm ffmpeg / ffprobe are available. Do not call generative APIs from this skill unless the user explicitly needs a missing bed (stable-audio-2.5) or caption alignment (whisperx).

Before assembling

Read in order for the task at hand:

1. assembly-concat.md — concat, normalize, mux
2. transitions.md — xfade / acrossfade
3. captions.md — whisperx → phrase-bar + word-accent ASS (default) or line-block → burn-in
4. overlays.md — drawtext, logo watermark
5. comparison-sliders.md — side-by-side / before-after
6. background-music.md — bed under VO
7. combination-hyperframes.md — HTML combo videos (optional)
8. export-presets.md — aspect ratios, loudnorm, web export

Bed prompts and embed-vs-post policy: audio-prompting.

Combination videos (Hyperframes)

When the deliverable needs designed frames — chat UI mocks, kinetic type, multi-panel grids, product montages — install hyperframes (optional external — see Related skills below) and follow combination-hyperframes.md.

Pattern: HyperFrames render (motion + VO, no burned captions) → post-render ffmpeg (whisperx → phrase-bar + word-accent burn → optional bed mux → export). See captions.md for caption craft.

Related skills

Install related skills when the job needs them:

Skill	Description	Install
whisperx	Use when someone needs word-level timestamps from audio — lyric alignment, cut-safe line boundaries, or caption source timing before burn-in with video-editing.	npx skills add PrunaAI/pruna-skills@whisperx -y
stable-audio-2.5	Use when someone wants light instrumental background music — an ambient bed under dialogue or underscore for reels and explainers.	npx skills add PrunaAI/[email protected] -y
gemini-3.1-flash-tts	Use when someone needs spoken narration or voiceover — explainer tracks, documentary lines, or voice to pair with generated video.	npx skills add PrunaAI/[email protected] -y
audio-prompting	Use 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-api	Use 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