AI Image Generation and Editing
zhayujie/CowAgent
Generates or edits images from text prompts through a Python script that picks an image backend based on which API keys are configured.
Generate and edit images using Google's Nano Banana Pro (Gemini 3 Pro Image) API.
Install Nano Banana Pro
$ npx skills add rtadewald/skills --skill nano-banana-pro -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rtadewald/skills nano-banana-pro --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/rtadewald/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/nano-banana-pro .claude/skills/nano-banana-pro && 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" agent skill from https://github.com/rtadewald/skills/tree/main/nano-banana-pro into .claude/skills/nano-banana-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro", 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/rtadewald/skills/tree/main/nano-banana-proType 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 rtadewald/skills --skill nano-banana-pro -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rtadewald/skills nano-banana-pro --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rtadewald/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/nano-banana-pro .agents/skills/nano-banana-pro && 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" agent skill from https://github.com/rtadewald/skills/tree/main/nano-banana-pro into .agents/skills/nano-banana-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro", 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 rtadewald/skills --skill nano-banana-pro -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rtadewald/skills nano-banana-pro --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rtadewald/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/nano-banana-pro .cursor/skills/nano-banana-pro && 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" agent skill from https://github.com/rtadewald/skills/tree/main/nano-banana-pro into .cursor/skills/nano-banana-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro", 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/rtadewald/skills.git --path nano-banana-pro--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 rtadewald/skills --skill nano-banana-pro -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rtadewald/skills nano-banana-pro --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rtadewald/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/nano-banana-pro .gemini/skills/nano-banana-pro && 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" agent skill from https://github.com/rtadewald/skills/tree/main/nano-banana-pro into .gemini/skills/nano-banana-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro", 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 rtadewald/skills nano-banana-proInstalls 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 rtadewald/skills --skill nano-banana-pro -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rtadewald/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/nano-banana-pro .github/skills/nano-banana-pro && 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" agent skill from https://github.com/rtadewald/skills/tree/main/nano-banana-pro into .github/skills/nano-banana-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro", 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 rtadewald/skills --skill nano-banana-pro -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rtadewald/skills nano-banana-pro --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rtadewald/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/nano-banana-pro .opencode/skills/nano-banana-pro && 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" agent skill from https://github.com/rtadewald/skills/tree/main/nano-banana-pro into .opencode/skills/nano-banana-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana-pro", 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- GitHub stars
- 185
- Token cost
- ~1.2k tokens
- SKILL.md length
- 423 words
- Files
- 4 (incl. scripts)
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- None found
At a glance
Generate and edit images using Google's Nano Banana Pro (Gemini 3 Pro Image) API.
- Works in 2 steps: api-key argument (use if user provided… → GEMINI_API_KEY environment variable…
- The user asks to generate
- SKILL.md covers Usage, Resolution Options, API Key and Filename Generation, plus 4 more sections
- Runs Python scripts from its folder; calls uv; needs GEMINI_API_KEY and OPENROUTER_API_KEY
What it does
Nano Banana Pro is an agent skill from rtadewald/skills. Generate and edit images using Google's Nano Banana Pro (Gemini 3 Pro Image) API. Use when the user asks to generate, create, edit, modify, change, alter, or update images. Also use when user references an existing image file and asks to modify it in any way (e.g., "modify this image", "change the background", "replace X with Y"). Supports text-to-image and image-to-image editing. Default resolution is always 512 unless the user explicitly asks for 1K, 2K, or 4K. DO NOT read the image file first - use this skill…
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including scripts (for example `agents/openai.yaml` and `scripts/generate_image.py`).
It sits in Media & Creative, covering Image generation and Image editing. It works with Google Gemini. The repository describes itself as: Skills e fluxos que uso nos meus agentes.
When your agent uses it
- The user asks to generate
- User references an existing image file and asks to modify it in any way (e.g.
- Modify this image
- Change the background
Example prompts
- “modify this image”
- “change the background”
- “replace X with Y”
- “/nano-banana-pro”
Requirements
- Python 3
- A credential in GEMINI_API_KEY
- A credential in OPENROUTER_API_KEY
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- api-key argument (use if user provided key in chat)
- GEMINI_API_KEY environment variable (also loads from .env / ~/.env via python-dotenv when present)
What it can do on your machine
Read from SKILL.md and the folder at commit 99d0b39. 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 2 files 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
No URLs in SKILL.md. Its commands use uv, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
GEMINI_API_KEYOPENROUTER_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Nano Banana Pro loads about 1.2k tokens when it runs. Until then it costs about 144 tokens; SKILL.md has 423 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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NoteMentions a .env fileSKILL.md:58
` environment variable (also loads from `.env` / `~/.env` via python-dotenv when present)
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 423 words (~1,224 tokens).
“Generate new images or edit existing ones using Google's Nano Banana Pro API (Gemini 3 Pro Image).”
- name
- nano-banana-pro
- source
- https://github.com/garg-aayush/tutorials/tree/main/Codex-skills/nano-banana-pro
Files
SKILL.md and 3 other files (scripts) in nano-banana-pro of rtadewald/skills.
- SKILL.md
- agents/openai.yaml
- scripts/__pycache__/generate_image.cpython-312.pyc
- scripts/generate_image.py
Open the folder on GitHubat commit 99d0b39
Compare with similar skills
Nano Banana Pro 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 this skillrtadewald/skills | 185 | — | ~1.2k | Automated safety check: Notes | None | |
| AI Image Generation and Editingzhayujie/CowAgent | 47k | — | ~1.3k | Automated safety check: Pass | MIT | |
| BlockRun Image GenerationBlockRunAI/ClawRouter | 6.6k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Antigravity Gemini ImageuluckyXH/OpenMOSS | 1.3k | — | ~730 | Automated safety check: Notes | MIT | |
| FigureMuuuun/luxas | 1.2k | — | ~1.2k | Automated safety check: Pass | MIT | |
| Gemini Image Generatordair-ai/dair-academy-plugins | 614 | 2 repos | ~3.5k | Automated safety check: Notes | MIT |
Similar skills
BlockRun Image Generation
BlockRunAI/ClawRouter
Generates or edits images through ClawRouter's local image API, with a choice of models and sizes and payment handled automatically through x402.
Antigravity Gemini Image
uluckyXH/OpenMOSS
Generate or edit images using the Antigravity-hosted Gemini image model via the local gateway.
Figure
Muuuun/luxas
Hybrid figure pipeline (Nano Banana raster + rembg background removal + TikZ vector assembly).
Gemini Image Generator
dair-ai/dair-academy-plugins
Generates and edits images with Google's Gemini Nano Banana Pro model through the Gemini API, including photo edits and multi-image composition.
Nanobanana
ReScienceLab/opc-skills
Generate and edit images using Google Gemini 3 Pro Image (Nano Banana Pro).
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Related
Works with
Categories
Questions about Nano Banana Pro
What does Nano Banana Pro do?
Generate and edit images using Google's Nano Banana Pro (Gemini 3 Pro Image) API. Nano Banana Pro is an agent skill from rtadewald/skills. Generate and edit images using Google's Nano Banana Pro (Gemini 3 Pro Image) API.
When should I use Nano Banana Pro?
Nano Banana Pro fits situations like: the user asks to generate; user references an existing image file and asks to modify it in any way (e.g; modify this image; change the background.
How do I install Nano Banana Pro in Claude Code?
Run `npx skills add rtadewald/skills --skill nano-banana-pro -a claude-code`. Or copy the skill folder (nano-banana-pro in rtadewald/skills) into .claude/skills/nano-banana-pro in your project. Claude Code loads it when a task matches its description.
How do I install Nano Banana Pro in Codex?
Run `npx skills add rtadewald/skills --skill nano-banana-pro -a codex`. Or copy the skill folder (nano-banana-pro in rtadewald/skills) into .agents/skills/nano-banana-pro in your project. Codex loads it when a task matches its description.
Can I use Nano Banana Pro 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 rtadewald/skills --skill nano-banana-pro -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, .gemini/skills/nano-banana-pro, .github/skills/nano-banana-pro and .opencode/skills/nano-banana-pro in your project.
What does Nano Banana Pro need to run?
Going by SKILL.md and its folder, Nano Banana Pro needs Python for the scripts in its folder, the command-line tools its instructions call (uv) and credentials named GEMINI_API_KEY and OPENROUTER_API_KEY. Our summary lists: Python 3; A credential in GEMINI_API_KEY; A credential in OPENROUTER_API_KEY.
Does Nano Banana Pro access the network?
SKILL.md contains no URLs. Its commands use uv, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Nano Banana Pro safe to install?
Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. 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 use?
No licence was found for Nano Banana Pro or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Nano Banana Pro use?
About 1.2k tokens (SKILL.md is roughly 4.9k 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?
Skills that share tags, products or a category with Nano Banana Pro: AI Image Generation and Editing (zhayujie/CowAgent, 47k stars), BlockRun Image Generation (BlockRunAI/ClawRouter, 6.6k stars), Antigravity Gemini Image (uluckyXH/OpenMOSS, 1.3k stars) and Figure (Muuuun/luxas, 1.2k 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?
rtadewald (a GitHub user) maintains it in rtadewald/skills, which has 185 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on September 28, 2026.
Source: rtadewald/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.