Agent-Skills.md

Agent Skills: Gemini Web Client

Generates images and text via reverse-engineered Gemini Web API. Supports text generation, image generation from prompts, reference images for vision input, and multi-turn conversations. Use when other skills need image generation backend, or when user requests "generate image with Gemini", "Gemini text generation", or needs vision-capable AI generation.

UncategorizedID: jimliu/baoyu-skills/baoyu-danger-gemini-web

Repository

jimliu/baoyu-skills
JimLiu
11,1451,244

Install this agent skill to your local

pnpm dlx add-skill https://github.com/JimLiu/baoyu-skills/tree/HEAD/skills/baoyu-danger-gemini-web

Skill Files

Browse the full folder contents for baoyu-danger-gemini-web.

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skills/baoyu-danger-gemini-web/SKILL.md

Skill Metadata

Name
baoyu-danger-gemini-web
Description
Generates images and text via reverse-engineered Gemini Web API. Supports text generation, image generation from prompts, reference images for vision input, and multi-turn conversations. Use when other skills need image generation backend, or when user requests "generate image with Gemini", "Gemini text generation", or needs vision-capable AI generation.

Gemini Web Client

Text/image generation via Gemini Web API. Supports reference images and multi-turn conversations.

Script Directory

Important: All scripts are located in the scripts/ subdirectory of this skill.

Agent Execution Instructions:

  1. Determine this SKILL.md file's directory path as {baseDir}
  2. Script path = {baseDir}/scripts/<script-name>.ts
  3. Resolve ${BUN_X} runtime: if bun installed → bun; if npx available → npx -y bun; else suggest installing bun
  4. Replace all {baseDir} and ${BUN_X} in this document with actual values

Script Reference: | Script | Purpose | |--------|---------| | scripts/main.ts | CLI entry point for text/image generation | | scripts/gemini-webapi/* | TypeScript port of gemini_webapi (GeminiClient, types, utils) |

Consent Check (REQUIRED)

Before first use, verify user consent for reverse-engineered API usage.

Consent file locations:

  • macOS: ~/Library/Application Support/baoyu-skills/gemini-web/consent.json
  • Linux: ~/.local/share/baoyu-skills/gemini-web/consent.json
  • Windows: %APPDATA%\baoyu-skills\gemini-web\consent.json

Flow:

  1. Check if consent file exists with accepted: true and disclaimerVersion: "1.0"
  2. If valid consent exists → print warning with acceptedAt date, proceed
  3. If no consent → show disclaimer, ask user via AskUserQuestion:
    • "Yes, I accept" → create consent file with ISO timestamp, proceed
    • "No, I decline" → output decline message, stop
  4. Consent file format: {"version":1,"accepted":true,"acceptedAt":"<ISO>","disclaimerVersion":"1.0"}

Preferences (EXTEND.md)

Check EXTEND.md existence (priority order):

# macOS, Linux, WSL, Git Bash
test -f .baoyu-skills/baoyu-danger-gemini-web/EXTEND.md && echo "project"
test -f "${XDG_CONFIG_HOME:-$HOME/.config}/baoyu-skills/baoyu-danger-gemini-web/EXTEND.md" && echo "xdg"
test -f "$HOME/.baoyu-skills/baoyu-danger-gemini-web/EXTEND.md" && echo "user"

# PowerShell (Windows)
if (Test-Path .baoyu-skills/baoyu-danger-gemini-web/EXTEND.md) { "project" }
$xdg = if ($env:XDG_CONFIG_HOME) { $env:XDG_CONFIG_HOME } else { "$HOME/.config" }
if (Test-Path "$xdg/baoyu-skills/baoyu-danger-gemini-web/EXTEND.md") { "xdg" }
if (Test-Path "$HOME/.baoyu-skills/baoyu-danger-gemini-web/EXTEND.md") { "user" }

┌──────────────────────────────────────────────────────────┬───────────────────┐ │ Path │ Location │ ├──────────────────────────────────────────────────────────┼───────────────────┤ │ .baoyu-skills/baoyu-danger-gemini-web/EXTEND.md │ Project directory │ ├──────────────────────────────────────────────────────────┼───────────────────┤ │ $HOME/.baoyu-skills/baoyu-danger-gemini-web/EXTEND.md │ User home │ └──────────────────────────────────────────────────────────┴───────────────────┘

┌───────────┬───────────────────────────────────────────────────────────────────────────┐ │ Result │ Action │ ├───────────┼───────────────────────────────────────────────────────────────────────────┤ │ Found │ Read, parse, apply settings │ ├───────────┼───────────────────────────────────────────────────────────────────────────┤ │ Not found │ Use defaults │ └───────────┴───────────────────────────────────────────────────────────────────────────┘

EXTEND.md Supports: Default model | Proxy settings | Custom data directory

Usage

# Text generation
${BUN_X} {baseDir}/scripts/main.ts "Your prompt"
${BUN_X} {baseDir}/scripts/main.ts --prompt "Your prompt" --model gemini-3-flash

# Image generation
${BUN_X} {baseDir}/scripts/main.ts --prompt "A cute cat" --image cat.png
${BUN_X} {baseDir}/scripts/main.ts --promptfiles system.md content.md --image out.png

# Vision input (reference images)
${BUN_X} {baseDir}/scripts/main.ts --prompt "Describe this" --reference image.png
${BUN_X} {baseDir}/scripts/main.ts --prompt "Create variation" --reference a.png --image out.png

# Multi-turn conversation
${BUN_X} {baseDir}/scripts/main.ts "Remember: 42" --sessionId session-abc
${BUN_X} {baseDir}/scripts/main.ts "What number?" --sessionId session-abc

# JSON output
${BUN_X} {baseDir}/scripts/main.ts "Hello" --json

Options

| Option | Description | |--------|-------------| | --prompt, -p | Prompt text | | --promptfiles | Read prompt from files (concatenated) | | --model, -m | Model: gemini-3-pro (default), gemini-3-flash, gemini-3-flash-thinking, gemini-3.1-pro-preview | | --image [path] | Generate image (default: generated.png) | | --reference, --ref | Reference images for vision input | | --sessionId | Session ID for multi-turn conversation | | --list-sessions | List saved sessions | | --json | Output as JSON | | --login | Refresh cookies, then exit | | --cookie-path | Custom cookie file path | | --profile-dir | Chrome profile directory |

Models

| Model | Description | |-------|-------------| | gemini-3-pro | Default, latest 3.0 Pro | | gemini-3-flash | Fast, lightweight 3.0 Flash | | gemini-3-flash-thinking | 3.0 Flash with thinking | | gemini-3.1-pro-preview | 3.1 Pro preview (empty header, auto-routed) |

Authentication

First run opens browser for Google auth. Cookies cached automatically.

When no explicit profile dir is set, cookie refresh may reuse an already-running local Chrome/Chromium debugging session tied to a standard user-data dir. Set --profile-dir or GEMINI_WEB_CHROME_PROFILE_DIR to force a dedicated profile and skip existing-session reuse. This is a best-effort CDP session reuse path, not the Chrome DevTools MCP prompt-based --autoConnect flow described in Chrome's official docs.

Supported browsers (auto-detected): Chrome, Chrome Canary/Beta, Chromium, Edge.

Force refresh: --login flag. Override browser: GEMINI_WEB_CHROME_PATH env var.

Environment Variables

| Variable | Description | |----------|-------------| | GEMINI_WEB_DATA_DIR | Data directory | | GEMINI_WEB_COOKIE_PATH | Cookie file path | | GEMINI_WEB_CHROME_PROFILE_DIR | Chrome profile directory | | GEMINI_WEB_CHROME_PATH | Chrome executable path | | HTTP_PROXY, HTTPS_PROXY | Proxy for Google access (set inline with command) |

Sessions

Session files stored in data directory under sessions/<id>.json.

Contains: id, metadata (Gemini chat state), messages array, timestamps.

Extension Support

Custom configurations via EXTEND.md. See Preferences section for paths and supported options.