Downloads

Gasoline 0.7.2

Download Gasoline for your platform. Currently 0.7.2 is available.

🔥 Chrome Extension

Gasoline Extension v0.7.2 - Browser observability for AI agents

Installation (Load Unpacked)

1. Download the latest release from GitHub Releases and unzip, or clone the repo:

   git clone https://github.com/brennhill/gasoline-mcp-ai-devtools.git

2. Open Chrome and navigate to chrome://extensions/
3. Enable “Developer mode” (toggle in top right)
4. Click “Load unpacked”
5. Select the extension/ folder

The extension will be pinned to your toolbar and ready to use.

What’s New in 0.7.x

✨ 5th Tool: analyze

• Active analysis tool with 15 modes — DOM queries, accessibility, security audits, link health, visual annotations, API validation, and more
• Clean separation: observe reads passive buffers, analyze triggers active work

🔗 Link Health & Validation

• Browser-based link checker with CORS detection
• Server-side URL validation with SSRF-safe transport
• Concurrent worker pools for fast scanning

🎨 Draw Mode & Visual Annotations

• User draws rectangles and types feedback directly on the page
• Multi-page annotation sessions that accumulate across navigation
• Full computed style extraction for annotated elements
• Visual test generation from annotation sessions

🧪 Test Healing & Classification

• Self-healing Playwright selectors — automatically repair broken tests
• Context-aware test generation from errors, interactions, or regressions
• Test failure classification for batch triage

📹 Recording & Playback

• Full tab video recording with audio capture
• Recording playback and metadata tracking
• Log diff: compare error states between recordings

🔀 Multi-Client Support

• Multiple AI tools can connect to the same daemon
• Client registry with automatic ID derivation from CWD

💻 MCP Server (Command Line Tools)

Gasoline MCP Server v0.7.2 - Enable AI agents to see and control your browser

Install the MCP server on your system:

npm (Recommended)

npm install -g gasoline-mcp@0.7.2
gasoline-mcp --help

pip

pip install gasoline-mcp
gasoline-mcp --help

From Source

git clone https://github.com/brennhill/gasoline-mcp-ai-devtools.git
cd gasoline-mcp-ai-devtools
make build
./dist/gasoline-darwin-arm64  # or your platform binary

Available Binaries:

• gasoline-darwin-arm64 (macOS Apple Silicon)
• gasoline-darwin-x64 (macOS Intel)
• gasoline-linux-arm64 (Linux ARM64)
• gasoline-linux-x64 (Linux x86-64)
• gasoline-win32-x64.exe (Windows x86-64)

System Requirements

• Browser: Chrome/Chromium 120+ (for MV3 support)
• Node.js: 18+ (for CLI tools)
• Platform: macOS, Linux, Windows
• MCP Client: Claude Code, Cursor, Windsurf, Claude Desktop, Zed, Gemini CLI, OpenCode, Antigravity, or any other MCP-compliant system/agent

Verification

To verify the extension installed correctly:

1. Open any webpage
2. Click the Gasoline icon () in your toolbar
3. You should see the popup with recording and tracking options
4. Check the extension’s popup shows “Connected” status

Troubleshooting

Extension not appearing?

• Try refreshing the page (Cmd+R / Ctrl+R)
• Ensure Chrome is version 120 or higher
• Check that Developer mode is enabled

Recording not working?

• Click the Gasoline icon to grant recording permission
• Ensure the tab you want to record is active
• Check your Chrome permissions for microphone access (if recording audio)

Issues with MCP integration?

• See Claude Code Integration Guide
• See Cursor Integration Guide

Support

• 📖 Documentation
• 🐛 Report Issues
• 💬 GitHub Discussions
• 🔒 Security Policy

Release Notes

v0.7.2 (February 2026)

Major Features:

• 5th MCP tool: analyze — 15 active analysis modes
• Link health checker with CORS detection and SSRF-safe server-side validation
• Draw mode visual annotations with multi-page sessions
• Test healing: self-repairing Playwright selectors
• Context-aware test generation and failure classification
• Recording system with video, audio, playback, and log diff
• Multi-client support with client registry
• Page summary analysis mode

Security:

• CWE-942 postMessage validation
• Security audit and third-party audit moved to dedicated analyze tool
• Input validation improvements

Quality:

• Zero-dependency Go binary — no Node.js or Python runtime
• Comprehensive smoke tests
• Full TypeScript strict mode compliance

See GitHub Releases for complete version history.