# Send Anima to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "anima",
    "name": "Anima",
    "source": "tencent",
    "type": "skill",
    "category": "AI 智能",
    "sourceUrl": "https://clawhub.ai/HMyaoyuan/anima",
    "canonicalUrl": "https://clawhub.ai/HMyaoyuan/anima",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/anima",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=anima",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "ASSETS_PLAN.md",
      "SKILL.md",
      "assets/manifest.json",
      "assets/production_plan.csv",
      "package.json",
      "run.js"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "anima",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-29T20:10:30.549Z",
      "expiresAt": "2026-05-06T20:10:30.549Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=anima",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=anima",
        "contentDisposition": "attachment; filename=\"anima-3.3.2.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "anima"
      },
      "scope": "item",
      "summary": "Item download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this item.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/anima"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/anima",
    "downloadUrl": "https://openagent3.xyz/downloads/anima",
    "agentUrl": "https://openagent3.xyz/skills/anima/agent",
    "manifestUrl": "https://openagent3.xyz/skills/anima/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/anima/agent.md"
  }
}
```
## Documentation

### Anima Avatar (Project Anima)

Generates high-quality interactive videos where Shutiao speaks the text with appropriate expressions, gestures, and voice.

### Capabilities

True Voice: Uses Fish Audio API for realistic speech synthesis.
Dynamic Sprites: Auto-selects from a library of 30+ sprites (Happy, Angry, Shy, Think, Action) based on emotion tags.
Smart Director: Handles parallel rendering, audio-sync, and video composition (FFmpeg).
Pro Delivery: Uploads as native stream to Feishu for direct playback (with correct duration).

### Structure

src/director.js: The core engine. Generates frames (sharp + SVG), audio (Fish Audio), and video (FFmpeg).
src/send_video_pro.js: Delivery script. Handles transcoding, duration calculation, and Feishu upload.
src/batch_generator.js: Batch sprite generator. Uses Gemini image generation to produce sprite variants.
assets/sprites/: The sprite library (1920x1080 PNG files).
assets/production_plan.csv: The asset registry (25 sprites).
assets/manifest.json: Sprite metadata for reference.
output/: Generated videos.

### IMPORTANT: Sprites Not Included

ClawHub only distributes text files. The sprite PNG images are not included in the published package.

After installing, follow the steps below in order to prepare your sprites before first use.

All image generation steps use Gemini API (Nano Banana) as the AI image generator. It works by "reference image + text prompt" — you give it an existing image and a text description of what to change, and it returns a new image with the changes applied. This is how both the base sprite (character + background fusion) and all expression variants are created.

### Step 1: Prepare your character image

You need a standalone character illustration (transparent background PNG recommended).

This is your character's "identity" — it defines the look for all sprites.
Resolution: at least 1920x1080. Full-body is best.
Example: a full-body anime character PNG with transparent background.

Save it somewhere accessible (e.g. avatars/my_character.png).

### Step 2: Prepare your background image

You need a background scene for the character to stand in.

This is the environment that appears behind the character in every video frame.
Resolution: at least 1920x1080.
Example: a cherry blossom garden, a classroom, a city street.

Save it at: assets/backgrounds/ (e.g. assets/backgrounds/cherry_blossom_bg.png).

### Step 3: Fuse character + background into base sprite

This step uses Gemini (Nano Banana) image generation to merge your character onto the background. The AI sees both images and creates a natural-looking composite — this is NOT a simple overlay/paste, but an AI-generated fusion that handles lighting, shadows, and blending.

How to do it:

Method A: Use Gemini directly (recommended)
Use any Gemini-compatible image generation tool (like Nano Banana, Google AI Studio, or the Gemini API) with:

Input image: Your background image
Reference/overlay: Your character image
Prompt: e.g. "Place this character naturally in the center of this background scene, full body visible, gentle smile"

Save the output as: assets/sprites/shutiao_base.png

Method B: Use the built-in compose script (simple overlay)
If you just want a quick mechanical overlay (no AI blending), src/compose_base.js can paste your character onto the background using sharp:

Edit src/compose_base.js — update BG_PATH and AVATAR_PATH to point to your files.
Run: node src/compose_base.js
Output: assets/sprites/shutiao_base.png

Note: Method B is a plain image composite. Method A (Gemini) produces much better results because it handles lighting and integration naturally.

### Step 4: Plan your sprite variants

Now that you have a base sprite, plan what expression/pose variants you want.

Open assets/production_plan.csv and customize it:

ID,Emotion,Variant,Description,Filename,Prompt,Status
001,Base,v1,Standard,shutiao_base.png,gentle smile looking at viewer,Done
003,Happy,v1,Smile,shutiao_happy.png,big happy smile eyes closed,Pending
007,Angry,v1,Pout,shutiao_angry.png,angry face pouting,Pending
...

Column meanings:

Emotion: Category used by the video director to pick sprites (Happy, Angry, Shy, Think, Sad, Action, Base).
Filename: Output filename. Must follow shutiao_<emotion>_<variant>.png format.
Prompt: Describes how this variant differs from the base. The generator sends the base image + this prompt to Gemini, asking it to change only the expression/pose while keeping everything else the same.
Status: Pending = will be generated. Done = already exists, skip.

The default CSV has 25 entries. You can add, remove, or modify rows freely.

### Step 5: Generate sprite variants

This step uses Gemini (Nano Banana) image generation again. For each Pending row, the batch generator sends your base sprite + the prompt to Gemini, asking: "Same image, change facial expression to [prompt]. Keep clothes and background exactly same."

Set your Gemini API key in skills/anima/.env:

GEMINI_API_KEY=your_key_here

Make sure assets/sprites/shutiao_base.png (or shutiao_base_1k.png) exists from Step 3.


Run the batch generator:

node skills/anima/src/batch_generator.js

What happens:

Reads production_plan.csv
Finds all rows with Status=Pending
For each: sends the base sprite + prompt to Gemini API
Saves the generated image as a PNG in assets/sprites/
Updates the CSV row to Status=Done
Waits 10 seconds between generations (API rate limit cooldown)

### Step 6: Verify

Check that assets/sprites/ now has a PNG file for every row in production_plan.csv:

ls assets/sprites/*.png | wc -l

Then do a quick test run:

node skills/anima/run.js --preview --script '[{"text":"Test","emotion":"Happy"}]'

Check the generated frame at temp/frame_0.png — you should see your character with the text overlay.

If a sprite is missing at runtime, the director will fall back to a white background with a warning in the console.

### 1. System Dependencies

ffmpeg (required for video processing):

macOS: brew install ffmpeg
Linux: sudo apt install ffmpeg
Windows: Download/Install FFmpeg and add to PATH.

### 2. Node Dependencies

Install inside the skill folder:

cd skills/anima
npm install

The only native dependency is sharp, which ships prebuilt binaries for all major platforms via N-API. It does not need recompilation when Node versions change — install once, run everywhere.

### 3. External Services (API Keys Required)

This skill depends on two external services. You need to provide your own API keys.

Fish Audio (TTS - Text to Speech)

What: Generates realistic voice audio from text.
Used by: src/director.js (the generateAudio() function).
Get a key: https://fish.audio/dashboard/api
Env vars needed:

FISH_AUDIO_KEY — Your API key (starts with sk-... or a hex string).
FISH_AUDIO_REF_ID — The voice model reference ID. You can use Fish Audio's default models or clone your own voice.

Gemini API (Image Generation - Optional)

What: Generates sprite variants using Google Gemini image generation.
Used by: src/batch_generator.js (only needed if you want to create new sprite variants).
Self-contained: No external skills needed. batch_generator.js calls the Gemini API directly via curl.
Get a key: https://aistudio.google.com/apikey
Env var needed: GEMINI_API_KEY
Not needed for normal video generation — only for creating new character sprites.

Feishu / Lark (Delivery - Optional)

What: Uploads videos to Feishu as native media messages.
Used by: src/send_video_pro.js.
Env vars needed:

FEISHU_APP_ID — Your Feishu app ID.
FEISHU_APP_SECRET — Your Feishu app secret.


Not needed if you only use --preview mode.

### 4. Environment Configuration

Create a .env file inside the skill folder (skills/anima/.env):

# Fish Audio (Required for TTS)
FISH_AUDIO_KEY=your_key_here
FISH_AUDIO_REF_ID=your_model_ref_id_here

# Gemini (Optional, for sprite generation)
GEMINI_API_KEY=your_key_here

# Feishu/Lark (Optional, for delivery)
FEISHU_APP_ID=cli_...
FEISHU_APP_SECRET=...

Important: The .env file is loaded from the skill folder first (least-privilege). Never commit .env files — the .clawignore already excludes it.

### Generate & Send

# Basic usage (Demo script)
node skills/anima/run.js --target "ou_..."

# With custom script (JSON string)
node skills/anima/run.js --target "ou_..." --script '[{"text":"Hello World","emotion":"Happy"}]'

# With custom script (File)
node skills/anima/run.js --target "ou_..." --script "path/to/script.json"

# Preview only (No upload)
node skills/anima/run.js --script '[{"text":"Test","emotion":"Happy"}]' --preview

### One-Liner (for agent use)

node skills/anima/run.js --target "<open_id>" --script '[{"text":"Hello","emotion":"Happy"}]'

### Script Format

Each scene in the script is a JSON object:

[
  { "text": "Hello boss!", "emotion": "Happy" },
  { "text": "Let me think...", "emotion": "Think" },
  { "text": "I got it!", "emotion": "Action" }
]

Available emotions: Base, Happy, Angry, Shy, Think, Sad, Action.

### Extension: Custom TTS

To use a different TTS provider (e.g., OpenAI, ElevenLabs):

Open src/director.js.
Locate the generateAudio(text, filename) function.
Replace the Fish Audio API call with your provider's logic.
Contract: The function must return: { path: "/path/to/audio.wav", duration: 1.5 } (duration in seconds).

### Advanced: Adding More Sprite Variants

To add new expressions or poses after the initial setup:

Add a new row to assets/production_plan.csv with Status=Pending.
Write a clear prompt describing the change from the base (e.g. angry expression, arms crossed, looking away).
Run node src/batch_generator.js — it will only process Pending rows.
The new sprite will auto-register in the director's emotion pool via loadSprites().

See ASSETS_PLAN.md for the full production matrix and design philosophy.

### Troubleshooting

Duration 00:00: Ensure send_video_pro.js calculates duration in ms and passes it to both upload and message payload.
Fish Audio 400: Check that your Ref ID matches the API Key owner's model.
Video Black: Check ffmpeg transcoding logs and verify source frame images in temp/frame_*.png.
SVG text not rendering: Ensure the system has CJK fonts installed (macOS has them by default; on Linux: sudo apt install fonts-noto-cjk).
No audio fallback: If FISH_AUDIO_KEY is missing, the skill falls back to macOS say command (English only).
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: HMyaoyuan
- Version: 3.3.2
## Source health
- Status: healthy
- Item download looks usable.
- Yavira can redirect you to the upstream package for this item.
- Health scope: item
- Reason: direct_download_ok
- Checked at: 2026-04-29T20:10:30.549Z
- Expires at: 2026-05-06T20:10:30.549Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/anima)
- [Send to Agent page](https://openagent3.xyz/skills/anima/agent)
- [JSON manifest](https://openagent3.xyz/skills/anima/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/anima/agent.md)
- [Download page](https://openagent3.xyz/downloads/anima)