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 AI images using Nano Banana for fast image creation.
Install Nano Banana
$ npx skills add refly-ai/refly-skills --skill nano-banana -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install refly-ai/refly-skills nano-banana --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/refly-ai/refly-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/nano-banana .claude/skills/nano-banana && 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" agent skill from https://github.com/refly-ai/refly-skills/tree/main/skills/nano-banana into .claude/skills/nano-banana/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana", 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/refly-ai/refly-skills/tree/main/skills/nano-bananaType 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 refly-ai/refly-skills --skill nano-banana -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install refly-ai/refly-skills nano-banana --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/refly-ai/refly-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/nano-banana .agents/skills/nano-banana && 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" agent skill from https://github.com/refly-ai/refly-skills/tree/main/skills/nano-banana into .agents/skills/nano-banana/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana", 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 refly-ai/refly-skills --skill nano-banana -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install refly-ai/refly-skills nano-banana --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/refly-ai/refly-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/nano-banana .cursor/skills/nano-banana && 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" agent skill from https://github.com/refly-ai/refly-skills/tree/main/skills/nano-banana into .cursor/skills/nano-banana/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana", 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/refly-ai/refly-skills.git --path skills/nano-banana--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 refly-ai/refly-skills --skill nano-banana -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install refly-ai/refly-skills nano-banana --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/refly-ai/refly-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/nano-banana .gemini/skills/nano-banana && 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" agent skill from https://github.com/refly-ai/refly-skills/tree/main/skills/nano-banana into .gemini/skills/nano-banana/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana", 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 refly-ai/refly-skills nano-bananaInstalls 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 refly-ai/refly-skills --skill nano-banana -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/refly-ai/refly-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/nano-banana .github/skills/nano-banana && 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" agent skill from https://github.com/refly-ai/refly-skills/tree/main/skills/nano-banana into .github/skills/nano-banana/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana", 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 refly-ai/refly-skills --skill nano-banana -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install refly-ai/refly-skills nano-banana --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/refly-ai/refly-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/nano-banana .opencode/skills/nano-banana && 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" agent skill from https://github.com/refly-ai/refly-skills/tree/main/skills/nano-banana into .opencode/skills/nano-banana/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nano-banana", 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- GitHub stars
- 204
- Token cost
- ~562 tokens
- SKILL.md length
- 92 words
- Files
- 2
- Skills in repo
- 48
- Repo updated
- First seen
- Licence
- None found
At a glance
Generate AI images using Nano Banana for fast image creation.
- Works in 3 steps: Run the Skill and Get Run ID → Open Workflow in Browser and Wait for… → Download and Show Result
- Quickly generate images from prompts
- SKILL.md covers Input, Execution (Pattern A: File…, Expected Output and Rules
- Calls jq; reaches refly.ai
What it does
Nano Banana is an agent skill from refly-ai/refly-skills. Generate AI images using Nano Banana for fast image creation. Use when you need to: (1) quickly generate images from prompts, (2) create prototypes and iterations, or (3) produce simple image content efficiently.
Its SKILL.md is about 560 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `README.md`).
It sits in Media & Creative, covering Image generation. It works with Google Gemini. The repository describes itself as: Refly skills repository.
When your agent uses it
- Quickly generate images from prompts
- Create prototypes and iterations
- Produce simple image content efficiently
Example prompts
- “/nano-banana”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
- Run the Skill and Get Run ID
- Open Workflow in Browser and Wait for Completion
- Download and Show Result
What it can do on your machine
Read from SKILL.md and the folder at commit 5a546d2. 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
Shell commands in SKILL.md call:
jq
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
refly.ai
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Nano Banana loads about 562 tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 92 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); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 92 words (~562 tokens).
“Generate AI images using Nano Banana for fast image creation. Use when you need to: (1) quickly generate images from prompts, (2) create prototypes and iterations, or (3) produce simple image content efficiently.”
- name
- nano-banana
- version
- 1.0.0
- skillId
- skp-h6jon11ubya3mwsoztadhkaf
- workflowId
- c-fi0jawxn5au4gc4u34x642ko
- installationId
- skpi-c3kbyakremol9ukap585h4xd
- category
- file-generation
Files
SKILL.md and 1 other file in skills/nano-banana of refly-ai/refly-skills.
- SKILL.md
- README.md
Open the folder on GitHubat commit 5a546d2
Compare with similar skills
Nano Banana 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 this skillrefly-ai/refly-skills | 204 | — | ~562 | Automated safety check: Pass | None | |
| AI Image Generation and Editingzhayujie/CowAgent | 47k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Logo Generatorop7418/logo-generator-skill | 2.2k | — | ~1.8k | Automated safety check: Notes | None | |
| Gemini Web Reverse-Engineered ClientJimLiu/baoyu-skills | 27k | 5 repos | ~1.6k | Automated safety check: Pass | MIT | |
| SEO Image GeneratorAgriciDaniel/claude-seo | 19k | 2 repos | ~2.1k | Automated safety check: Pass | MIT | |
| BlockRun Image GenerationBlockRunAI/ClawRouter | 6.6k | — | ~2.1k | Automated safety check: Pass | MIT |
Similar skills
Logo Generator
op7418/logo-generator-skill
Generate professional SVG logos and high-end showcase images.
Gemini Web Reverse-Engineered Client
JimLiu/baoyu-skills
Generates text and images through an unofficial, reverse-engineered Gemini Web API, supporting reference images and multi-turn conversations.
SEO Image Generator
AgriciDaniel/claude-seo
Generates Open Graph previews, blog hero images, product photos and infographics for SEO use through Gemini image tools and the banana extension.
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.
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Related
Works with
Categories
Questions about Nano Banana
What does Nano Banana do?
Generate AI images using Nano Banana for fast image creation. Nano Banana is an agent skill from refly-ai/refly-skills. Generate AI images using Nano Banana for fast image creation.
When should I use Nano Banana?
Nano Banana fits situations like: quickly generate images from prompts; create prototypes and iterations; produce simple image content efficiently.
How do I install Nano Banana in Claude Code?
Run `npx skills add refly-ai/refly-skills --skill nano-banana -a claude-code`. Or copy the skill folder (skills/nano-banana in refly-ai/refly-skills) into .claude/skills/nano-banana in your project. Claude Code loads it when a task matches its description.
How do I install Nano Banana in Codex?
Run `npx skills add refly-ai/refly-skills --skill nano-banana -a codex`. Or copy the skill folder (skills/nano-banana in refly-ai/refly-skills) into .agents/skills/nano-banana in your project. Codex loads it when a task matches its description.
Can I use Nano Banana 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 refly-ai/refly-skills --skill nano-banana -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, .gemini/skills/nano-banana, .github/skills/nano-banana and .opencode/skills/nano-banana in your project.
What does Nano Banana need to run?
Going by SKILL.md and its folder, Nano Banana needs the command-line tools its instructions call (jq).
Does Nano Banana access the network?
SKILL.md names 1 domain. In commands or code: refly.ai; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Nano Banana 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. Review the folder before installing.
What licence does Nano Banana use?
No licence was found for Nano Banana or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Nano Banana use?
About 562 tokens (SKILL.md is roughly 2.2k 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?
Skills that share tags, products or a category with Nano Banana: AI Image Generation and Editing (zhayujie/CowAgent, 47k stars), Logo Generator (op7418/logo-generator-skill, 2.2k stars), Gemini Web Reverse-Engineered Client (JimLiu/baoyu-skills, 27k stars) and SEO Image Generator (AgriciDaniel/claude-seo, 19k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Nano Banana?
refly-ai (a GitHub organization) maintains it in refly-ai/refly-skills, which has 204 GitHub stars. The repository holds 48 skills in this directory. The repository was last updated on July 20, 2026.
Source: refly-ai/refly-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.