Generates clean Excalidraw diagrams from a description: coloured blocks, short labels, arrows with captions, in layouts that fit the idea (flow, hub, cycle, tree, comparison, timeline, swimlane).
Excalidraw Diagram
Open source
Images & Graphics
Nano Banana image generation
Lets Claude Code generate and edit images with Google's Nano Banana (Gemini image) models from a plain prompt: text-to-image, edits of an existing image, photo restoration, icons, diagrams, patterns and sequential story images.
- 25 free runs a month
- Runs in your agent, private tools on SkillGild
- v1.0.0
- Keanan Koppenhaver
skillgild install nano-bananaWorks with
License: MIT · Created by Keanan Koppenhaver
What you get
- Lets Claude Code generate and edit images with Google's Nano Banana (Gemini image) models from a plain prompt: text-to-image, edits of an existing image, photo restoration, icons, diagrams, patterns and sequential story images.
- It calls the Gemini CLI's nanobanana extension, so you bring a Gemini API key.
Requirements
- Gemini API key in NANOBANANA_GEMINI_API_KEY; Gemini CLI nanobanana extension
Install the Nano Banana image generation skill
Pick your agent. The wrapper only tells your agent how to start a session. The skill's instructions arrive with each session, after your access is checked.
Sign in once from your terminal.
Terminal skillgild loginInstall this skill for Claude Code.
Terminal skillgild install nano-banana --agent claude-codeRegister the SkillGild MCP server with Claude Code.
Terminal claude mcp add --scope user skillgild -- $(command -v skillgild) mcp
How it runs
- Your agent starts a session. SkillGild checks your access and allowance, counts one run, and sends the skill's instructions for this task.
- Your agent does the work with its own model and tools, in your project. SkillGild makes no AI model call.
Use it from code
Start a session, follow its guide, then end it. Create an API key under Account and pass it as a bearer token.
# Prints the session ID, its tools and the instructions for your agent
skillgild session nano-banana
skillgild end <session-id>Questions
How do I install Nano Banana image generation in Claude Code?
Run skillgild install nano-banana --agent claude-code and connect the SkillGild MCP server (skillgild mcp). When a task matches, your agent starts a session, which uses one of your 25 free runs this month, and follows the skill's instructions. Use --agent codex, cursor or gemini-cli for other clients.
Is Nano Banana image generation free?
Yes. It includes 25 free runs every month on SkillGild. Nano Banana image generation is open source (MIT) by Keanan Koppenhaver; SkillGild packages it from https://github.com/kkoppenhaver/cc-nano-banana at a pinned commit and credits the author.
Does Nano Banana image generation run on SkillGild?
It runs in your coding agent with your own model. SkillGild checks your monthly allowance and delivers the skill's instructions for each session; it makes no model call and never sees your project unless your agent sends it.
Which agents does Nano Banana image generation work with?
The project lists Claude Code. It is a plain Agent Skills folder (SKILL.md plus supporting files), so any client that reads that format can load it.
Related guides
Setup steps and worked examples for this kind of skill.
- Claude Code frontend design skills: Taste Skill and Logo DesignUse Taste Skill for landing pages and Logo Design for brand marks in Claude Code, with briefs that work and a checklist to review the output.
- Best Claude Code skills in 2026: 27 picks by jobThe best Claude Code skills in 2026, grouped by job: writing, planning, frontend design, testing, research, documents, marketing and video. Community skills from GitHub and hosted skills with free runs, each with its install command.
- How to install Claude Code skills (and skills for Codex, Cursor and Gemini CLI)Install a Claude Code skill from GitHub, a plugin or SkillGild in one command. Folder paths, personal vs project skills, verifying it loaded, troubleshooting, and the same steps for Codex, Cursor and Gemini CLI.
- How to create a Claude skillCreate a Claude skill from scratch: write SKILL.md with a name and description, add scripts and references, test it in Claude Code, make it work in Codex and Cursor, and share it on GitHub, as a plugin or on SkillGild.
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