nano-banana-pro-openrouter

name	nano-banana-pro-openrouter
description	Deterministic OpenRouter image generation adapter for Nano Banana Pro / Gemini image models. Use as skill_exec when a meta-skill needs local image files and structured IMAGE_READY records without spawning an LLM agent.
description_zh	针对Nano Banana Pro / Gemini图像模型的确定性OpenRouter图像生成适配器。当元技能需要本地图片文件和结构化的IMAGE_READY记录且不想启动LLM代理时，作为skill_exec使用。
user-invocable	false
disable-model-invocation	true
homepage	https://clawhub.ai/skills/nano-banana-pro-openrouter
provenance	{"origin":"clawhub-mit0","license":"MIT-0","upstream_url":"https://clawhub.ai/skills/nano-banana-pro-openrouter","maintained_by":"OpenSquilla"}
metadata	{"opensquilla":{"risk":"high","capabilities":["network-write","filesystem-write"],"requires":{"bins":"[Truncated]","env":"[Truncated]","config":"[Truncated]"}}}
entrypoint	{"command":"python {baseDir}/scripts/openrouter_image.py","args":["--model","{{ with.model | default('google/gemini-3-pro-image-preview') }}","--output-dir","{{ with.output_dir }}","--filename","{{ with.filename | default('image.png') }}","--resolution","{{ with.resolution | default('1K') }}","--max-images","{{ with.max_images | default('6') }}","--local-path-prefix","{{ with.local_path_prefix | default('project/assets/images') }}"],"env":{"OPENSQUILLA_META_CAPABILITY_LEASE_REQUIRED":"1"},"stdin":"{{ with.payload | default(with.prompt | default(inputs.user_message)) }}","parse":"text","timeout":300}

Nano Banana Pro OpenRouter Adapter

This skill is a deterministic adapter around OpenRouter image generation. It is intended for meta-skill skill_exec use, not as an open-ended agent surface.

Contract

• During MetaSkill execution, accepts only the parent-resolved, process-local provider lease. The credential, endpoint, and proxy never enter with, argv, the plan, or persisted run data. Direct standalone CLI use may still provide OPENROUTER_API_KEY.
• Does not read .env files, prompt for credentials, print credentials, or write credentials to disk.
• Uses only the model, base URL, output directory, and local path prefix passed by the caller.
• Saves generated image bytes under the supplied output directory.
• Emits one IMAGE_READY: JSON line per saved image.
• A missing/invalid required MetaSkill lease exits 78 before any provider submission. Provider failures after submission emit IMAGE_GENERATION_FAILED with exit 0 so the webpage can bind a replacement slot without auto-replay.

Meta-Skill Payload Mode

When stdin is JSON containing media_slots, image_slots, slots, or page_outline, the adapter generates image slots and preserves already downloaded images. Structured slots are preferred over free-form outline text:

{
  "requirement_framing": "...",
  "media_slots": {"slots": [{"slot_id": "hero-visual", "modality": "image"}]},
  "page_outline": "..."