MCPInstall

baoyu-gemini-web

Image generation skill using Gemini Web. Generates images from text prompts via Google Gemini. Also supports text generation. Use as the image generation backend for other skills like cover-image, xhs-images, article-illustrator.

Installs
95
Last 24h
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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/zsyggg/paper-craft-skills --skill baoyu-gemini-web
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads baoyu-gemini-web automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Gemini Web Client

Supports:

  • Text generation
  • Image generation (download + save)
  • Reference image upload (attach images for vision tasks)
  • Multi-turn conversations within the same executor instance (keepSession)
  • Experimental video generation (generateVideo) — Gemini may return an async placeholder; download might require Gemini web UI

Quick start

npx -y bun scripts/main.ts "Hello, Gemini"
npx -y bun scripts/main.ts --prompt "Explain quantum computing"
npx -y bun scripts/main.ts --prompt "A cute cat" --image cat.png
npx -y bun scripts/main.ts --promptfiles system.md content.md --image out.png

# Multi-turn conversation (agent generates unique sessionId)
npx -y bun scripts/main.ts "Remember this: 42" --sessionId my-unique-id-123
npx -y bun scripts/main.ts "What number?" --sessionId my-unique-id-123

Executor options (programmatic)

This skill is typically consumed via createGeminiWebExecutor(geminiOptions) (see scripts/executor.ts).

Key options in GeminiWebOptions:

  • referenceImages?: string | string[] Upload local images as references (vision input).
  • keepSession?: boolean Reuse Gemini chatMetadata to continue the same conversation across calls (required if you want reference images to persist across multiple messages).
  • generateVideo?: string Generate a video and (best-effort) download to the given path. Gemini may return video_gen_chip (async); in that case you must open Gemini web UI to download the result.

Notes:

  • generateVideo cannot be combined with generateImage / editImage.
  • When keepSession=true and referenceImages is set, reference images are uploaded once per executor instance.

Commands

Text generation

# Simple prompt (positional)
npx -y bun scripts/main.ts "Your prompt here"

# Explicit prompt flag
npx -y bun scripts/main.ts --prompt "Your prompt here"
npx -y bun scripts/main.ts -p "Your prompt here"

# With model selection
npx -y bun scripts/main.ts -p "Hello" -m gemini-2.5-pro

# Pipe from stdin
echo "Summarize this" | npx -y bun scripts/main.ts

Image generation

# Generate image with default path (./generated.png)
npx -y bun scripts/main.ts --prompt "A sunset over mountains" --image

# Generate image with custom path
npx -y bun scripts/main.ts --prompt "A cute robot" --image robot.png

# Shorthand
npx -y bun scripts/main.ts "A dragon" --image=dragon.png

Output formats

# Plain text (default)
npx -y bun scripts/main.ts "Hello"

# JSON output
npx -y bun scripts/main.ts "Hello" --json

Options

OptionDescription
--prompt <text>, -pPrompt text
--promptfiles <files...>Read prompt from files (concatenated in order)
--model <id>, -mModel: gemini-3-pro (default), gemini-2.5-pro, gemini-2.5-flash
--image [path]Generate image, save to path (default: generated.png)
--sessionId <id>Session ID for multi-turn conversation (agent generates unique ID)
--list-sessionsList saved sessions (max 100, sorted by update time)
--jsonOutput as JSON
--loginRefresh cookies only, then exit
--cookie-path <path>Custom cookie file path
--profile-dir <path>Chrome profile directory
--help, -hShow help

CLI note: scripts/main.ts supports text generation, image generation, and multi-turn conversations via --sessionId. Reference images and video generation are exposed via the executor API.

Models

  • gemini-3-pro - Default, latest model
  • gemini-2.5-pro - Previous generation pro
  • gemini-2.5-flash - Fast, lightweight

Authentication

First run opens Chrome to authenticate with Google. Cookies are cached for subsequent runs.

# Force cookie refresh
npx -y bun scripts/main.ts --login

Environment variables

VariableDescription
GEMINI_WEB_DATA_DIRData directory
GEMINI_WEB_COOKIE_PATHCookie file path
GEMINI_WEB_CHROME_PROFILE_DIRChrome profile directory
GEMINI_WEB_CHROME_PATHChrome executable path

Examples

Generate text response

npx -y bun scripts/main.ts "What is the capital of France?"

Generate image

npx -y bun scripts/main.ts "A photorealistic image of a golden retriever puppy" --image puppy.png

Get JSON output for parsing

npx -y bun scripts/main.ts "Hello" --json | jq '.text'

Generate image from prompt files

# Concatenate system.md + content.md as prompt
npx -y bun scripts/main.ts --promptfiles system.md content.md --image output.png

Multi-turn conversation

# Start a session with unique ID (agent generates this)
npx -y bun scripts/main.ts "You are a helpful math tutor." --sessionId task-abc123

# Continue the conversation (remembers context)
npx -y bun scripts/main.ts "What is 2+2?" --sessionId task-abc123
npx -y bun scripts/main.ts "Now multiply that by 10" --sessionId task-abc123

# List recent sessions (max 100, sorted by update time)
npx -y bun scripts/main.ts --list-sessions

Session files are stored in ~/Library/Application Support/baoyu-skills/gemini-web/sessions/<id>.json and contain:

  • id: Session ID
  • metadata: Gemini chat metadata for continuation
  • messages: Array of {role, content, timestamp, error?}
  • createdAt, updatedAt: Timestamps

FAQ

What does the baoyu-gemini-web skill do?

Image generation skill using Gemini Web. Generates images from text prompts via Google Gemini. Also supports text generation. Use as the image generation backend for other skills like cover-image, xhs-images, article-illustrator.

How do I install baoyu-gemini-web?

Run npx skills add https://github.com/zsyggg/paper-craft-skills --skill baoyu-gemini-web in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/baoyu-gemini-web/ (personal) or .claude/skills/baoyu-gemini-web/ (project).

Which AI agents can use baoyu-gemini-web?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is baoyu-gemini-web safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains baoyu-gemini-web?

It is published by zsyggg in zsyggg/paper-craft-skills. It has 95 recorded installs.

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