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.

Prerequisites

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

Skill	Description	Install
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
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
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

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

Agent habit

In the first reply, name `p-video` in backticks, confirm PRUNA_API_KEY (or stop with signup links from pruna-api), then ask for required inputs. Open intake → generation-diversity clarification intake before the first POST. When drafting motion prompts, follow Prompt craft (dynamic + faithful) — do not paste skill examples. Redirect when When NOT to use fits better.

Prompt craft (dynamic + faithful)

Every input.prompt must be fresh and specific, and must match the user's beat. Diversity never overrides the brief.

Do	Don't
Run the generation-diversity random seed ritual; state it; rotate ≥2 free axes (camera move, lighting shift, texture, pacing) when the brief allows	Copy curl examples from this skill (rain-slick street, dog tosses plush, …) or reuse a prior session's prompt
Lock user-required facts first (subject, action beat, OPEN/MID/CLOSE when frame-anchored, narration sync when audio is set)	Swap the subject or motion for a “cooler” clip that ignores the request
Structure with video-prompting dramaturgy — one frozen action per beat, physics-safe motion, camera grammar	Vague mood-only strings (cinematic vibe, neon energy)
When audio is set, motion and pacing must match the narration beat	Drift to unrelated action while VO plays
Show the drafted prompt + mode fields before POST when the user has not locked wording	Silent regen with a different subject or beat than approved

Fidelity check (before pay): if you remove the user's named subject/action/setting from the prompt, the job is wrong — rewrite. Free axes only fill what the brief left open.

When showing a drafted prompt, still name `p-video` (guides help craft; this tool owns the call).

Skill boundary

This skill = one p-video prediction per invocation.

Out of scope (do not execute from this skill):

• Multi-scene assembly, concat, subagent orchestration, or parallel scene batches
• Motion transfer from a template video → p-video-animate
• Talking-head / lip-sync → p-video-avatar

If the request exceeds one clip, stop and recommend: image-to-video (one narrated beat), visual-transition-reel (multi-scene visual), or narrated-multi-scene (multi-scene + VO).

When NOT to use

Use a different skill instead:

Skill	Description	Install
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-video-edit	Use when someone wants to edit an existing video with a text instruction — recolor, restyle, remove or add objects, change environment or lighting, update on-screen text, or apply optional reference-guided product and accessory edits. Not for a new clip from scratch or ffmpeg assembly.	npx skills add PrunaAI/pruna-skills@p-video-edit -y
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

HTTP (curl)

Upload for image-to-video / frame anchors

bash

curl -X POST "https://api.pruna.ai/v1/files" \
  -H "apikey: ${PRUNA_API_KEY}" \
  -F "content=@/path/to/first-frame.png"

Pass urls.get as input.image (first frame) and/or input.last_frame_image (last frame). Upload TTS/music the same way for input.audio.

Create (async text-to-video — recommended)

bash

curl -X POST 'https://api.pruna.ai/v1/predictions' \
  -H 'Content-Type: application/json' \
  -H "apikey: ${PRUNA_API_KEY}" \
  -H 'Model: p-video' \
  -d '{
    "input": {
      "prompt": "Slow dolly in on rain-slick street at night, neon reflections, distant traffic hiss",
      "duration": 5,
      "resolution": "720p",
      "aspect_ratio": "16:9"
    }
  }'

Poll and download: follow pruna-api.

Complete the random seed ritual from generation-diversity before writing prompts — do not pass the ritual string as API seed.

First / last frame (visual transition)

bash

curl -X POST 'https://api.pruna.ai/v1/predictions' \
  -H 'Content-Type: application/json' \
  -H "apikey: ${PRUNA_API_KEY}" \
  -H 'Model: p-video' \
  -d '{
    "input": {
      "prompt": "OPEN: hold wide on wet alley, neon flicker. MID: slow dolly in, rain ticks on pavement. CLOSE: settle on end pose.",
      "image": "https://api.pruna.ai/v1/files/START_ID",
      "last_frame_image": "https://api.pruna.ai/v1/files/END_ID",
      "duration": 5,
      "resolution": "720p",
      "fps": 24
    }
  }'

Scene anchor triple (image + last_frame_image + audio)

bash

curl -X POST 'https://api.pruna.ai/v1/predictions' \
  -H 'Content-Type: application/json' \
  -H "apikey: ${PRUNA_API_KEY}" \
  -H 'Model: p-video' \
  -d '{
    "input": {
      "prompt": "Dog tosses plush upward, tail wagging, motion matches narrator, warm light",
      "image": "https://api.pruna.ai/v1/files/SCENE_START",
      "last_frame_image": "https://api.pruna.ai/v1/files/SCENE_END",
      "audio": "https://api.pruna.ai/v1/files/SCENE_NARRATION",
      "resolution": "720p",
      "fps": 24,
      "save_audio": true
    }
  }'

Omit duration when audio is set. Clip length = min(audio length, 20s) — keep TTS ≤ ~19s (ffprobe before render).

Before generating

1. Complete Prerequisites guide reading order (generation-diversity → video-prompting).
2. Ritual seed → draft a dynamic + faithful motion prompt (section above) → confirm mode (T2V / I2V / frame pair / audio), duration (unless audio-driven), resolution, fps, draft, and prompt with the user.
3. Pruna notes: when image is set, aspect_ratio is ignored. With audio, omit duration and set save_audio: true to keep narration. Prefer uploaded VO over post-mux. If the request is multi-scene — stop (see Skill boundary).

Required input

• prompt (string)

Common optional fields

Field	Role
image	First frame — I2V anchor; when set, aspect_ratio is ignored
last_frame_image	Optional end-state still
audio	Audio-conditioned; duration follows audio (capped at 20s); flac/mp3/wav
duration	1–20s (ignored if audio set)
resolution	720p (default) or 1080p
fps	24 (default) or 48
aspect_ratio	When no image: 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 1:1
draft	true ≈ 4× faster/cheaper preview; false = final
save_audio	Keep model-generated or uploaded audio on output
seed, prompt_upsampling, disable_safety_filter	Reproducibility / client policy

Related

Related skills:

Skill	Description	Install
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/pruna-skills@gemini-3.1-flash-tts -y
image-to-video	Use when someone wants one short film beat from images — a narrated scene, story moment, or cinematic B-roll with optional voiceover.	npx skills add PrunaAI/pruna-skills@image-to-video -y
visual-transition-reel	Use 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
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
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
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