AI Image Creator
evolution-foundation/evo-nexus
Generates PNG images through OpenRouter models, with transparent backgrounds and reference-image edits, and describes existing images with multimodal vision.
Generate or edit images via OpenRouter with the Gemini 3 Pro Image model.
Install Nano Banana Pro Openrouter
$ npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install github/awesome-copilot nano-banana-pro-openrouter --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/nano-banana-pro-openrouter .claude/skills/nano-banana-pro-openrouter && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "nano-banana-pro-openrouter" agent skill from https://github.com/github/awesome-copilot/tree/main/skills/nano-banana-pro-openrouter into .claude/skills/nano-banana-pro-openrouter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro-openrouter", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/github/awesome-copilot/tree/main/skills/nano-banana-pro-openrouterType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install github/awesome-copilot nano-banana-pro-openrouter --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/nano-banana-pro-openrouter .agents/skills/nano-banana-pro-openrouter && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "nano-banana-pro-openrouter" agent skill from https://github.com/github/awesome-copilot/tree/main/skills/nano-banana-pro-openrouter into .agents/skills/nano-banana-pro-openrouter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro-openrouter", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install github/awesome-copilot nano-banana-pro-openrouter --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/nano-banana-pro-openrouter .cursor/skills/nano-banana-pro-openrouter && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "nano-banana-pro-openrouter" agent skill from https://github.com/github/awesome-copilot/tree/main/skills/nano-banana-pro-openrouter into .cursor/skills/nano-banana-pro-openrouter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro-openrouter", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/github/awesome-copilot.git --path skills/nano-banana-pro-openrouter--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install github/awesome-copilot nano-banana-pro-openrouter --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/nano-banana-pro-openrouter .gemini/skills/nano-banana-pro-openrouter && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "nano-banana-pro-openrouter" agent skill from https://github.com/github/awesome-copilot/tree/main/skills/nano-banana-pro-openrouter into .gemini/skills/nano-banana-pro-openrouter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro-openrouter", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install github/awesome-copilot nano-banana-pro-openrouterInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/nano-banana-pro-openrouter .github/skills/nano-banana-pro-openrouter && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "nano-banana-pro-openrouter" agent skill from https://github.com/github/awesome-copilot/tree/main/skills/nano-banana-pro-openrouter into .github/skills/nano-banana-pro-openrouter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro-openrouter", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install github/awesome-copilot nano-banana-pro-openrouter --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/nano-banana-pro-openrouter .opencode/skills/nano-banana-pro-openrouter && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "nano-banana-pro-openrouter" agent skill from https://github.com/github/awesome-copilot/tree/main/skills/nano-banana-pro-openrouter into .opencode/skills/nano-banana-pro-openrouter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro-openrouter", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
nano-banana-pro-openrouter- GitHub stars
- 40k
- Used in
- 1 other repo
- Token cost
- ~664 tokens
- SKILL.md length
- 217 words
- Files
- 3 (incl. scripts, assets)
- Skills in repo
- 417
- Repo updated
- First seen
- Licence
- MIT
At a glance
Generate or edit images via OpenRouter with the Gemini 3 Pro Image model.
- Prompt-only image generation
- SKILL.md covers Overview, Resolution, System prompt customization and Behavior and constraints, plus 1 more section
- Runs Python scripts from its folder; calls uv; needs OPENROUTER_API_KEY
- Multi-image compositing
What it does
Nano Banana Pro Openrouter is an agent skill from github/awesome-copilot, published by the product's own GitHub organization. Generate or edit images via OpenRouter with the Gemini 3 Pro Image model. Use for prompt-only image generation, image edits, and multi-image compositing; supports 1K/2K/4K output.
Its SKILL.md is about 660 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts and assets (for example `scripts/generate_image.py`).
It sits in Media & Creative, covering Model routing and gateways, Image generation and Image editing. It works with OpenRouter and Google Gemini. The repository describes itself as: Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot. The licence is MIT.
When your agent uses it
- Prompt-only image generation
- Multi-image compositing
- Supports 1K/2K/4K output
Example prompts
- “/nano-banana-pro-openrouter”
Requirements
- Python 3
- A credential in OPENROUTER_API_KEY
What it can do on your machine
Read from SKILL.md and the folder at commit 7cce7cf. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
uv
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
astral.shopenrouter.ai
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
OPENROUTER_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Nano Banana Pro Openrouter loads about 664 tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 217 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from github/awesome-copilot at commit 7cce7cf, republished under its MIT licence (© github). 217 words, ~664 tokens.
Download SKILL.mdSave it as
.claude/skills/nano-banana-pro-openrouter/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- nano-banana-pro-openrouter
- description
- Generate or edit images via OpenRouter with the Gemini 3 Pro Image model. Use for prompt-only image generation, image edits, and multi-image compositing; supports 1K/2K/4K output.
- metadata.emoji
- 🍌
- metadata.primaryEnv
- OPENROUTER_API_KEY
Nano Banana Pro OpenRouter
Overview
Generate or edit images with OpenRouter using the google/gemini-3-pro-image-preview model. Support prompt-only generation, single-image edits, and multi-image composition.
Prompt-only generation
uv run {baseDir}/scripts/generate_image.py \
--prompt "A cinematic sunset over snow-capped mountains" \
--filename sunset.pngEdit a single image
uv run {baseDir}/scripts/generate_image.py \
--prompt "Replace the sky with a dramatic aurora" \
--input-image input.jpg \
--filename aurora.pngCompose multiple images
uv run {baseDir}/scripts/generate_image.py \
--prompt "Combine the subjects into a single studio portrait" \
--input-image face1.jpg \
--input-image face2.jpg \
--filename composite.pngResolution
- Use
--resolutionwith1K,2K, or4K. - Default is
1Kif not specified.
System prompt customization
The skill reads an optional system prompt from assets/SYSTEM_TEMPLATE. This allows you to customize the image generation behavior without modifying code.
Behavior and constraints
- Accept up to 3 input images via repeated
--input-image. --filenameaccepts relative paths (saves to current directory) or absolute paths.- If multiple images are returned, append
-1,-2, etc. to the filename. - Print
MEDIA: <path>for each saved image. Do not read images back into the response.
Troubleshooting
If the script exits non-zero, check stderr against these common blockers:
| Symptom | Resolution |
|---|---|
OPENROUTER_API_KEY is not set | Ask the user to set it. PowerShell: $env:OPENROUTER_API_KEY = "sk-or-..." / bash: export OPENROUTER_API_KEY="sk-or-..." |
uv: command not found or not recognized | macOS/Linux: <code>curl -LsSf https://astral.sh/uv/install.sh | sh</code>. Windows: <code>powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"</code>. Then restart the terminal. |
AuthenticationError / HTTP 401 | Key is invalid or has no credits. Verify at https://openrouter.ai/settings/keys. |
For transient errors (HTTP 429, network timeouts), retry once after 30 seconds. Do not retry the same error more than twice — surface the issue to the user instead.
© github, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files (scripts, assets) in skills/nano-banana-pro-openrouter of github/awesome-copilot.
- SKILL.md
- assets/SYSTEM_TEMPLATE
- scripts/generate_image.py
Open the folder on GitHubat commit 7cce7cf
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in github/awesome-copilot, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Nano Banana Pro Openrouter next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Nano Banana Pro Openrouter this skillgithub/awesome-copilot | 40k | 1 repos | ~664 | Automated safety check: Pass | MIT | |
| AI Image Creatorevolution-foundation/evo-nexus | 545 | — | ~5.1k | Automated safety check: Notes | Custom licence | |
| Generate ImageK-Dense-AI/claude-scientific-writer | 2.4k | 1 repos | ~3.8k | Automated safety check: Notes | MIT | |
| Openrouter Imgrtadewald/skills | 180 | — | ~800 | Automated safety check: Notes | None | |
| Image Genwpsnote/wpsnote-skills | 179 | — | ~1.3k | Automated safety check: Pass | None | |
| InfographicsK-Dense-AI/scientific-agent-skills | 48k | 1 repos | ~3.8k | Automated safety check: Notes | MIT |
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Related
Works with
Categories
Questions about Nano Banana Pro Openrouter
What does Nano Banana Pro Openrouter do?
Generate or edit images via OpenRouter with the Gemini 3 Pro Image model. Nano Banana Pro Openrouter is an agent skill from github/awesome-copilot, published by the product's own GitHub organization. Generate or edit images via OpenRouter with the Gemini 3 Pro Image model.
When should I use Nano Banana Pro Openrouter?
Nano Banana Pro Openrouter fits situations like: prompt-only image generation; multi-image compositing; supports 1K/2K/4K output.
How do I install Nano Banana Pro Openrouter in Claude Code?
Run `npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a claude-code`. Or copy the skill folder (skills/nano-banana-pro-openrouter in github/awesome-copilot) into .claude/skills/nano-banana-pro-openrouter in your project. Claude Code loads it when a task matches its description.
How do I install Nano Banana Pro Openrouter in Codex?
Run `npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a codex`. Or copy the skill folder (skills/nano-banana-pro-openrouter in github/awesome-copilot) into .agents/skills/nano-banana-pro-openrouter in your project. Codex loads it when a task matches its description.
Can I use Nano Banana Pro Openrouter in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add github/awesome-copilot --skill nano-banana-pro-openrouter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nano-banana-pro-openrouter, .gemini/skills/nano-banana-pro-openrouter, .github/skills/nano-banana-pro-openrouter and .opencode/skills/nano-banana-pro-openrouter in your project.
What does Nano Banana Pro Openrouter need to run?
Going by SKILL.md and its folder, Nano Banana Pro Openrouter needs Python for the scripts in its folder, the command-line tools its instructions call (uv) and credentials named OPENROUTER_API_KEY. Our summary lists: Python 3; A credential in OPENROUTER_API_KEY.
Does Nano Banana Pro Openrouter access the network?
SKILL.md names 2 domains. As links in the text: astral.sh and openrouter.ai. This is read from the text; nothing was executed.
Is Nano Banana Pro Openrouter safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Nano Banana Pro Openrouter use?
Nano Banana Pro Openrouter is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Nano Banana Pro Openrouter use?
About 664 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Nano Banana Pro Openrouter?
Skills that share tags, products or a category with Nano Banana Pro Openrouter: AI Image Creator (evolution-foundation/evo-nexus, 545 stars), Generate Image (K-Dense-AI/claude-scientific-writer, 2.4k stars), Openrouter Img (rtadewald/skills, 180 stars) and Image Gen (wpsnote/wpsnote-skills, 179 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Nano Banana Pro Openrouter?
github (a GitHub organization, an official publisher) maintains it in github/awesome-copilot, which has 39,792 GitHub stars. The repository holds 417 skills in this directory. The repository was last updated on October 8, 2026.
Source: github/awesome-copilot on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.