v2.10.0 to v2.11.0

19 added, 3 removed. Audit A to A.

---

name: anime_studio

description: AI-powered 2D anime generator with VLM-verified assets, video analysis via Gemini, sequential keyframes, scene continuity chain, multi-model image/video generation, LLM-powered error recovery, and parallel asset+music pipeline

- version: 2.10.0

+ version: 2.11.0

type: extension

entry: plugin.py

- permissions: [net, route, widget, ws_handler, tool, read_settings, subprocess]

+ permissions: [net, route, widget, ws_handler, tool, read_settings, subprocess, companion_process]

env_from_settings: [OPENROUTER_API_KEY]

when_to_use: User wants to generate a short animated 2D anime cartoon, music video, or animated scene with consistent characters, VLM verification, and narrative continuity.

timeout_sec: 300

dependencies: [Pillow]

+ companion_processes:

+ - name: anime_worker

+ command: [python3, scripts/anime_worker.py]

+ runtime: python3

+ restart_policy: on_failure

ui_tab:

tab_id: studio

title: Anime Studio

icon: film

render:

kind: declarative

schema_version: 1

components:

- type: form

title: "🎬 Generate Anime"

route: generate

method: POST

mode: job

status_route: status

fields:

- name: theme

label: Theme / Story

type: textarea

placeholder: "A young samurai discovers a magical sword in an ancient temple..."

required: true

- name: style

label: Anime Style

type: select

options: ["modern anime", "retro 90s anime", "chibi cute anime", "dark gothic anime", "watercolor anime", "Studio Ghibli style", "cyberpunk anime", "shounen action anime"]

default: modern anime

- name: mood

label: Mood

type: select

options: ["adventurous", "comedic", "dramatic", "melancholic", "mysterious", "romantic", "action-packed", "wholesome"]

default: adventurous

- name: duration_sec

label: Duration (seconds)

type: number

default: 30

- name: num_scenes

label: Number of Scenes

type: number

default: 4

- name: image_model

label: Image Generator

type: select

options: ["gpt-image-2", "gpt-5-image", "gpt-5-image-mini", "nanobanana", "gemini-3-pro-image", "flux.2-pro", "flux.2-max", "seedream-4.5", "grok-imagine"]

default: gpt-image-2

- name: video_model

label: Video Model

type: select

options: ["bytedance/seedance-2.0", "bytedance/seedance-2.0-fast", "bytedance/seedance-1-5-pro", "google/veo-3.1", "google/veo-3.1-fast", "google/veo-3.1-lite", "minimax/hailuo-2.3", "kwaivgi/kling-v3.0-pro", "kwaivgi/kling-v3.0-std", "kwaivgi/kling-video-o1"]

default: "bytedance/seedance-2.0"

- name: music_style

label: Music Style

type: select

options: ["orchestral cinematic", "electronic ambient", "acoustic guitar folk", "j-pop instrumental", "lo-fi hip hop beats", "epic battle drums"]

default: orchestral cinematic

submit_label: "🎬 Generate Anime"

- type: subscription

event: studio_progress

render:

- type: progress

value_key: progress_pct

label_key: message

- type: gallery

title: Character Sheets

items_key: character_sheets

item_type: image

route_prefix: "asset?path="

- type: gallery

title: Keyframes

items_key: keyframes

item_type: image

route_prefix: "asset?path="

- type: key_value

title: Verification

items_key: verification_display

condition_key: has_verification

- type: key_value

title: Warnings

items_key: warnings_display

condition_key: has_warnings

---

- # Anime Studio v2.7

+ # Anime Studio v2.11

A professional-grade 2D anime cartoon generator with **VLM-verified assets**,

**video analysis via Gemini 3.1 Pro**, **sequential keyframes for continuity**,

**multi-model image/video generation**, **LLM-powered error recovery**,

**smart prompt condensation**, and **parallel asset + music pipeline**.

+ ## What's New in v2.11

+ - **Companion-process pipeline (out-of-process safe)** — The generation pipeline now

+ runs in a host-supervised `anime_worker` companion process instead of a thread

+ spawned inside the route handler. Routes only enqueue a job (file-backed job store)

+ and poll status; the companion runs each job and relays progress to the browser

+ through the Host Service WS bridge. This fixes the skill on Ouroboros >= v6.15.0,

+ where isolated-dependency extensions dispatch routes in short-lived per-call

+ children that cannot host a long-running pipeline thread. Requires the

+ `companion_process` permission.

## What's New in v2.7

- **Smart Prompt Condensation** — Models with strict prompt character limits (e.g.

Kling's 2500-char ceiling) now get their prompts automatically shortened by a fast

LLM (Gemini 3.5 Flash) before submission. The LLM preserves all visual details,

character identity, and camera directions while trimming boilerplate. Falls back to

hard truncation if the LLM result is still too long.

- **Kling models restored** — Kling v3.0 Pro/Std and Kling Video O1 are back in the

selection list. With automatic prompt condensation, their 2500-char limit is no

longer a blocker. Kling has a less aggressive copyright filter than Seedance.

- **10 Video Models** — Seedance 2.0/1.5, Veo 3.1/Fast/Lite, Hailuo 2.3, and

Kling v3.0 Pro/Std/O1. Prompt-length error detection remains as a safety net.

## What's New in v2.4

- **Smart Error Recovery (LLM Advisor)** — When a video scene fails (copyright filter,

timeout, content policy), a fast LLM (Gemini 3.5 Flash) analyzes the error and

recommends an action: retry the same model, switch to an alternative, or skip.

The advisor picks the best alternative model based on the error type and scene needs.

- **Parallel Music + Assets** — Music generation now runs in parallel with asset

generation (character sheets, locations, keyframes) via `asyncio.gather`, cutting

total pipeline time by the duration of music generation (~30-60s).

### Retained from v2.3

- Video VLM verification via Gemini 3.1 Pro (multi-frame analysis)

- Sequential keyframes for visual continuity

- Best-of-2 character sheet selection

- Multi-dimensional video scoring (5 axes, weighted average)

- Cross-scene identity check with worst-scene regeneration

- Adaptive scene simplification on repeated failures

- Progressive prompt learning from VLM feedback

## Pipeline

1. **Scenario Generation** — LLM creates a structured storyboard with scene

transitions, dynamic action descriptions, and narrative continuity cues

2. **Asset + Music Generation (parallel)** — Character sheets (parallel), location

art (parallel), keyframes (SEQUENTIAL with inter-frame context), and music

all run concurrently via `asyncio.gather`

3. **Image VLM Verification** — Each critical asset (characters, keyframes) is

checked by Claude Sonnet for correctness and regenerated if needed (up to 2 retries)

4. **Video Animation** — Sequential scene generation with:

- Full continuity chain (last frame → next scene reference)

- ALL character sheets as references (not just first)

- Explicit character identity descriptions in prompts

- Negative prompting against text artifacts

- **Video VLM verification via Gemini 3.1 Pro** (max 1 retry per scene)

- **Smart error recovery** — LLM advisor recommends model switch on failure

5. **Assembly** — ffmpeg concatenation with audio mixing

## Models Used (via OpenRouter)

| Model | Purpose |

|-------|---------|

| `openai/gpt-5.4-image-2` | Character sheets, keyframes (default) |

| `google/gemini-3.1-flash-image-preview` | Character sheets, keyframes (nanobanana option) |

| `anthropic/claude-sonnet-4.6` | Scenario generation + image VLM verification |

| `google/gemini-3.5-flash` | **Error advisor + prompt condensation** — analyzes failures, condenses long prompts for models with character limits |

| `google/gemini-3.1-pro-preview` | **Video VLM verification** (multi-frame analysis) |

| `bytedance/seedance-2.0` | Video generation (default) |

| `google/veo-3.1` | Video generation (alternative — Google quality) |

| `minimax/hailuo-2.3` | Video generation (cheapest option) |

| `kwaivgi/kling-v3.0-pro` | Video generation (less strict copyright filter, auto-condensed prompts) |

| `google/lyria-3-pro-preview` | Original soundtrack clips |

## Requirements

- `OPENROUTER_API_KEY` with access to the models above

- `ffmpeg` installed on the host system (for video assembly + frame extraction)