roadmap: comprehensive 4-phase implementation plan for enhanced Playwright MCP features

Phase 1: Enhanced Navigation & Control (5 tools - back/forward nav, resize, devices, offline)
Phase 2: Chrome Extension Management (expand beyond 9 extensions, auto-update, workflows)
Phase 3: Coordinate-Based Vision Tools (enhance existing mouse tools, advanced patterns)
Phase 4: Real-World Testing & Polish (multi-client scenarios, UX refinement)

Next: Begin Phase 1 with browser_navigate_back implementation.
Current status: MCP client identification system complete and production-ready.

COMPREHENSIVE-ROADMAP.md

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+# Comprehensive Implementation Roadmap
+
+## 🎯 **Priority Order Established**
+1. **Phase 1**: Enhanced Navigation & Control (low complexity, broad utility)
+2. **Phase 2**: Chrome Extension Management Tools (medium complexity, high developer value)  
+3. **Phase 3**: Coordinate-Based Vision Tools (medium complexity, advanced automation)
+4. **Phase 4**: Real-World Testing & Polish (production readiness discussion)
+
+## ✅ **Current Status**
+- **MCP Client Identification System**: COMPLETE (5 tools implemented, tested, documented)
+- **Feature Gap Analysis**: COMPLETE (10 missing tools identified vs Python version)
+- **Production Ready**: Feature branch `feature/mcp-client-debug-injection` ready for merge
+
+## 📋 **Phase 1: Enhanced Navigation & Control** (NEXT)
+
+### Missing Tools to Implement:
+1. **browser_navigate_back** - Browser back button functionality
+   - Implementation: `await page.goBack()` with wait conditions
+   - Schema: No parameters needed
+   - Return: Page snapshot after navigation
+
+2. **browser_navigate_forward** - Browser forward button functionality  
+   - Implementation: `await page.goForward()` with wait conditions
+   - Schema: No parameters needed
+   - Return: Page snapshot after navigation
+
+3. **browser_resize** - Resize browser window
+   - Implementation: `await page.setViewportSize({ width, height })`
+   - Schema: `width: number, height: number`
+   - Return: New viewport dimensions
+
+4. **browser_list_devices** - List device emulation profiles (ENHANCE EXISTING)
+   - Current: Basic device listing exists in configure.ts
+   - Enhancement: Add detailed device info, categorization
+   - Schema: Optional category filter
+   - Return: Structured device profiles with capabilities
+
+5. **browser_set_offline** - Toggle offline network mode
+   - Implementation: `await context.setOffline(boolean)`
+   - Schema: `offline: boolean`
+   - Return: Network status confirmation
+
+### Implementation Location:
+- Add to `/src/tools/navigate.ts` (back/forward)
+- Add to `/src/tools/configure.ts` (resize, offline, devices)
+
+## 📋 **Phase 2: Chrome Extension Management**
+
+### Current Extensions Available:
+- react-devtools, vue-devtools, redux-devtools, lighthouse, axe-devtools
+- colorzilla, json-viewer, web-developer, whatfont
+
+### Enhancement Tasks:
+1. **Research extension installation patterns** - Study popular dev extensions
+2. **Add more popular extensions** - Expand beyond current 9 options
+3. **Extension auto-update** - Version management and updates
+4. **Management workflow tools** - Bulk operations, profiles
+
+## 📋 **Phase 3: Coordinate-Based Vision Tools**
+
+### Current Implementation:
+- Located: `/src/tools/mouse.ts`
+- Capability: `vision` (opt-in via --caps=vision)
+- Existing: `browser_mouse_move_xy`, `browser_mouse_click_xy`, `browser_mouse_drag_xy`
+
+### Enhancement Tasks:
+1. **Review existing implementation** - Audit current vision tools
+2. **Enhance coordinate precision** - Sub-pixel accuracy, scaling
+3. **Advanced drag patterns** - Multi-step drags, gesture recognition
+4. **Integration helpers** - Screenshot + coordinate tools
+
+## 📋 **Phase 4: Real-World Testing & Polish**
+
+### Discussion Topics:
+1. **Multi-client testing scenarios** - Actual parallel usage
+2. **Debug toolbar UX refinement** - User feedback integration
+3. **Performance optimization** - Memory usage, injection speed
+4. **Advanced identification features** - Custom themes, animations
+
+## 🛠️ **Implementation Notes**
+
+### Current Feature Branch:
+- Branch: `feature/mcp-client-debug-injection`
+- Files modified: 4 main files + 2 test files
+- New tools: 5 (debug toolbar + code injection)
+- Lines added: ~800 lines of TypeScript
+
+### Ready for Production:
+- All linting issues resolved
+- README updated with new tools
+- Comprehensive testing completed
+- Demo documentation created
+
+### Next Steps Before Context Loss:
+1. Begin Phase 1 with `browser_navigate_back` implementation
+2. Test navigation tools thoroughly  
+3. Move to Phase 2 Chrome extensions
+4. Maintain momentum through systematic implementation
+
+## 🎯 **Success Metrics**
+- Phase 1: 5 new navigation tools (bringing total to 61 tools)
+- Phase 2: Enhanced extension ecosystem (10+ popular extensions)
+- Phase 3: Advanced vision automation capabilities
+- Phase 4: Production-ready multi-client system
+
+This roadmap ensures systematic progression from basic functionality to advanced features, maintaining the TypeScript Playwright MCP server as the most comprehensive implementation available.