Use when someone wants the same person hosting several clips — multi-segment UGC, comparison reels, or mixed speaking and animated scenes with continuity.
Coding
avatar-single-scene
Try itUse when someone wants one polished host-on-camera beat — a speaking person with intake and approval gates before generation.
What it does
Use when someone wants one polished host-on-camera beat — a speaking person with intake and approval gates before generation.
The skill document
Prerequisites
Install and load these skills before generating (skip if already in context via @pruna):
| Skill | Description | Install |
|---|---|---|
p-image | Use when someone explicitly wants the fastest, cheapest photo generation — mood boards, bulk panels, or quick iterations — not when controlled photoreal or in-image text is needed. | npx skills add PrunaAI/pruna-skills@p-image -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 |
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 |
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 |
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.
Workflow habit
In every reply, name `avatar-single-scene` in backticks. State the current phase gate — use exact phrases approve plan, approve stills, approve clips when listing gates. Do not same-turn plan + paid video. Skip-review / burn-credits → follow generation-diversity Red flags.
Feedback gates (required)
| Phase | What to show | Proceed when |
|---|---|---|
| 0 — Plan | Full voice_script, voice, still + motion plan | approve plan |
| A — Still | Hero / portrait plate | approve still |
| B — Avatar | Single p-video-avatar clip | User accepts |
Natural language script
Write voice_script as real dialogue: contractions, natural rhythm, short sentences—how a person talks on camera, not a press release. See avatar-multi-scene for good/bad examples.
voice_prompt must describe human delivery (pacing, warmth, founder/conversational tone)—never paste marketing copy or script lines into it.
Voice and image continuity
voice/voice_language: Pick one preset pair for this clip’s speaker. If this character will appear again in a series or sequel clips, reuse the same presets so they sound like one person (same rule as the multi-scene skill’s cast ledger).- Source portrait: Prefer one approved reference URL (upload or generated). If you explore alternate backgrounds or styles, branch with
p-image-editfrom that same URL plus deltas—do not reinvent the face with an unrelatedp-imageunless the user agrees to a new identity.
Intake: ask before generating
Open intake → generation-diversity clarification intake.
Do not call POST /v1/predictions until the user (or product owner) has answered these—record answers in the manifest:
| Topic | Questions |
|---|---|
| Goal | What must this one clip communicate (single CTA, greeting, demo line)? |
| Media source | Upload-only portrait vs generate/refine still with p-image / p-image-edit first? |
| Script | Full voice_script as speakable copy—any mandatory pronunciation (names, acronyms)? |
| Voice | Which Pruna voice and voice_language? Keep voice_prompt short (performance vibe only). |
| Look | 9:16 / 16:9 still? Avatar resolution 720p or 1080p? |
| Motion | Desired energy for video_prompt—specific camera angle and movement (positive wording only)? |
| Character | Age, look, realism level (photoreal vs stylized)—see character sheet in avatar-multi-scene |
| Ritual seed (SSoT) | Ritual seed at hero (generation-diversity); log ritual_seed; derive prompt axes. Identity continuity = approved plate URL. Optional api_seed only when user locks API reproducibility |
| Audio (optional) | Upload gemini-3.1-flash-tts for lip-sync via input.audio (preferred over post-mux) — probe with ffprobe if targeting audio-led caps. Or use native voice_script. |
If any answer is missing and the user has not waived it, ask before generating.
Confirmation gate (mandatory)
After intake:
- Show the full
voice_script, chosenvoice/voice_language,resolution, and a short description of the still +video_promptplan. - Ask for explicit approval before calling the API (e.g. user replies go / approved).
- If they edit the script, show the updated
voice_scriptand confirm again when changes are material.
How the agent runs this
Once confirmed:
- Upload refs → build still with curl (
pruna-api) → slop gate → approve still. - Optional TTS →
ffprobe→ upload asinput.audio. - One async
p-video-avatarjob → poll → download. - Manifest: intake, URLs, prediction ids, confirmed script snapshot.
Workflow (after confirmation)
- References — Upload assets with
POST /v1/files; collect Pruna file URLs. - Still (if needed) — Build one talking-head frame with
p-imageand/orp-image-edit. Run the slop gate before avatar. - Slop gate —
generation-diversitychecklists; fix with image models until pass. - Avatar — Call
p-video-avatarwith snake_caseinput(image, optionallast_frame_image,voice_scriptor uploadedaudio,voice,voice_language,voice_prompt,video_prompt,resolution,seed). Prefer uploadedaudiofrom Gemini TTS when external narration quality matters. Async only (omitTry-Sync); poll tosucceeded; downloadgeneration_url. - Manifest — Store intake answers, URLs, prediction ids, prompts, retries, confirmed script snapshot.
Related
Related skills:
| Skill | Description | Install |
|---|---|---|
avatar-multi-scene | Use when someone wants the same person hosting several clips — multi-segment UGC, comparison reels, or mixed speaking and animated scenes with continuity. | npx skills add PrunaAI/pruna-skills@avatar-multi-scene -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 |
Related skills
Use when someone wants a person on camera speaking a script — lip-synced host, spokesperson, or narrated avatar from a portrait photo.
Use when writing any generative prompt — ritual seed, explicit structure, scenario axes, and quality gates before paid API calls.
Use when crafting TTS, music, or bed prompts for any generative audio model — director style, song structure, and post-production layering.
Use when someone wants an educational explainer with a host and characters — history or science shorts with dialogue, not voiceover-only B-roll.
Use when crafting still-image prompts for any generative model — composition, identity sheets, edits, try-on, and photoreal personas.