# CBrowser > The browser automation that thinks like your users - cognitive simulation, constitutional AI safety, and self-healing selectors. ## Overview CBrowser (Cognitive Browser) is an AI-native browser automation tool for Claude and other AI agents. It provides: - **Cognitive User Simulation**: Simulate how real users think, not just how they click - **Constitutional AI Safety**: Action classification (green/yellow/red/black zones) prevents dangerous operations - **Self-Healing Selectors**: AI-powered element finding that survives DOM changes - **25 Cognitive Traits**: Research-backed personality simulation (patience, comprehension, risk tolerance, etc.) - **Accessibility Testing**: Empathy audit simulates users with disabilities - **AI-Friendliness Audit**: Score sites on AI-agent compatibility (A-F grades) ## Key Pages - [Home](https://cbrowser.ai/) - Main landing page with feature overview - [Documentation](https://cbrowser.ai/docs/Home) - Getting started and API reference - [Tools Overview](https://cbrowser.ai/tools) - All 105 MCP tools - [AI-Friendliness](https://cbrowser.ai/ai-friendliness) - Make sites AI-agent ready - [Security](https://cbrowser.ai/security) - Constitutional safety and threat model - [Enterprise](https://cbrowser.ai/enterprise) - Marketing intelligence features - [Product Intelligence](https://cbrowser.ai/product-intelligence) - UX research automation - [About](https://cbrowser.ai/about) - Team and mission ## AI-Friendliness Hub - [AI-Friendliness Hub](https://cbrowser.ai/ai-friendliness) - Overview of AI-agent compatibility - [Agent-Ready Audit](https://cbrowser.ai/ai-friendliness/audit) - Score your site for AI navigation - [AI Benchmark](https://cbrowser.ai/ai-friendliness/benchmark) - Compare against industry standards - [Remediation Guide](https://cbrowser.ai/ai-friendliness/remediation) - Fix AI-unfriendly patterns - [llms.txt Generator](https://cbrowser.ai/ai-friendliness/llms-txt) - Create your own llms.txt - [WebMCP Ready](https://cbrowser.ai/ai-friendliness/webmcp-ready) - MCP server compatibility audit ## Flagship Tools - [Cognitive Journey](https://cbrowser.ai/tools/cognitive-journey) - Simulate real user cognition with abandonment detection - [Empathy Audit](https://cbrowser.ai/tools/empathy-audit) - Test with disability personas (motor tremor, low vision, ADHD) - [Hunt Bugs](https://cbrowser.ai/tools/hunt-bugs) - AI-powered bug detection - [Competitive Benchmark](https://cbrowser.ai/tools/competitive-benchmark) - Compare UX across competitor sites - [Persona Create](https://cbrowser.ai/tools/persona-create) - Build custom user personas with 26 traits - [Marketing Campaign](https://cbrowser.ai/tools/marketing-campaign) - A/B testing with influence matrix ## Documentation Sections ### Getting Started - [Getting Started](https://cbrowser.ai/docs/Getting-Started) - Installation and quick start - [FAQ](https://cbrowser.ai/docs/FAQ) - Frequently asked questions - [Troubleshooting](https://cbrowser.ai/docs/Troubleshooting) - Common issues and solutions ### Core Features - [Cognitive User Simulation](https://cbrowser.ai/docs/Cognitive-User-Simulation) - How cognitive journeys work - [Constitutional Safety](https://cbrowser.ai/docs/Constitutional-Safety) - Action classification zones - [UX Analysis Suite](https://cbrowser.ai/docs/UX-Analysis-Suite) - Comprehensive UX testing ### Cognitive Traits - [Trait Index](https://cbrowser.ai/docs/Trait-Index) - All 26 research-backed traits - [Trait Patience](https://cbrowser.ai/docs/Trait-Patience) - Time tolerance and abandonment - [Trait Comprehension](https://cbrowser.ai/docs/Trait-Comprehension) - Understanding UI conventions - [Trait RiskTolerance](https://cbrowser.ai/docs/Trait-RiskTolerance) - Willingness to explore ### User Personas - [Persona Index](https://cbrowser.ai/docs/Persona-Index) - All built-in and custom personas - [Persona Questionnaire](https://cbrowser.ai/docs/Persona-Questionnaire) - Create personas from surveys - [Multi-Persona Comparison](https://cbrowser.ai/docs/Multi-Persona-Comparison) - Compare UX across user types ### MCP Tools - [Tools Overview](https://cbrowser.ai/docs/Tools-Overview) - All 105 tools by category - [Browser Automation](https://cbrowser.ai/docs/Tools-Browser-Automation) - Navigation, clicking, forms - [Cognitive Journeys](https://cbrowser.ai/docs/Tools-Cognitive-Journeys) - User simulation tools - [Persona System](https://cbrowser.ai/docs/Tools-Persona-System) - Persona management tools - [Testing & Quality](https://cbrowser.ai/docs/Tools-Testing-Quality) - Test automation tools - [Visual & Performance](https://cbrowser.ai/docs/Tools-Visual-Performance) - Visual regression, performance - [Marketing Intelligence](https://cbrowser.ai/docs/Tools-Marketing-Intelligence) - Campaign and influence tools - [Accessibility](https://cbrowser.ai/docs/Tools-Accessibility) - Empathy audit and WCAG - [Session & State](https://cbrowser.ai/docs/Tools-Session-State) - Browser state management - [Utilities](https://cbrowser.ai/docs/Tools-Utilities) - Diagnostics and helpers ### Integration - [MCP Server](https://cbrowser.ai/docs/MCP-Server) - Claude Desktop setup - [Remote MCP Server](https://cbrowser.ai/docs/Remote-MCP-Server) - claude.ai integration - [Claude Skill Installation](https://cbrowser.ai/docs/Claude-Skill-Installation) - Claude Code skill ### Reference - [API Reference](https://cbrowser.ai/docs/API-Reference) - MCP tool parameters and responses - [CLI Reference](https://cbrowser.ai/docs/CLI-Reference) - Command-line usage - [Examples](https://cbrowser.ai/docs/Examples) - Real-world usage patterns ### Research - [Bibliography](https://cbrowser.ai/docs/Bibliography) - Academic sources for cognitive traits - [Values Framework](https://cbrowser.ai/docs/Values-Framework) - Schwartz values in personas - [Research Methodology](https://cbrowser.ai/docs/Research-Methodology) - How traits were validated ### Security - [Threat Model](https://cbrowser.ai/docs/THREAT_MODEL) - Security analysis - [Security Whitepaper](https://cbrowser.ai/docs/SECURITY_WHITEPAPER) - Constitutional AI safety ## Actions ### Allowed - Browse documentation and tool pages - Read API reference and examples - View cognitive trait and persona information - Search for specific tools or features - Access AI-friendliness audit tools ### Requires Authentication - None - all documentation is public ### Not Applicable - CBrowser is a documentation site; no user accounts or data modification ## Installation ```bash npm install cbrowser npx cbrowser --help ``` ## MCP Server Add to `claude_desktop_config.json`: ```json { "mcpServers": { "cbrowser": { "command": "npx", "args": ["cbrowser", "mcp-server"] } } } ``` ## Demo MCP Server Free, rate-limited access: ``` URL: https://demo.cbrowser.ai/mcp ``` ## Legal - [Privacy Policy](https://cbrowser.ai/privacy) - [Terms of Service](https://cbrowser.ai/terms) - [Acknowledgements](https://cbrowser.ai/acknowledgements) ## Contact - GitHub: https://github.com/alexandriashai/cbrowser - npm: https://www.npmjs.com/package/cbrowser - Issues: https://github.com/alexandriashai/cbrowser/issues ## Version Current: v18.29.0 Last updated: 2026-04-11