16 KiB
Claude Code Developer Tools - Progressive Specification
Core Challenge
Create self-contained web-based developer tools that enable observability, search, coordination, and shared memory across Claude Code instances. Each tool should progressively build upon web-learned techniques to create increasingly sophisticated systems for understanding and orchestrating AI coding sessions.
Output Requirements
File Naming: claude_devtool_[iteration_number].html
Content Structure: Complete self-contained HTML tool with inline CSS and JavaScript
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>[Tool Name] - Claude Code DevTools</title>
<style>
/* Modern developer-focused UI */
/* Dark theme by default with light mode option */
/* Code syntax highlighting */
/* Responsive layouts for data visualization */
</style>
</head>
<body>
<header>
<h1>[Tool Name]</h1>
<p class="tagline">[Tool Purpose]</p>
</header>
<main>
<!-- Tool Interface -->
<section class="tool-interface">
<!-- Interactive controls -->
<!-- Data input/connection areas -->
<!-- Real-time visualization -->
</section>
<!-- Results/Output Area -->
<section class="results">
<!-- Search results, analytics, visualizations -->
<!-- Export capabilities -->
</section>
<!-- Documentation -->
<section class="docs">
<h2>About This Tool</h2>
<div class="doc-content">
<h3>Purpose</h3>
<p>[What problem this solves]</p>
<h3>Features</h3>
<ul>
<li>[Feature 1]</li>
<li>[Feature 2]</li>
</ul>
<h3>Web Research Integration</h3>
<p><strong>Source:</strong> [URL]</p>
<p><strong>Techniques Applied:</strong></p>
<ul>
<li>[Technique 1 from web source]</li>
<li>[Technique 2 from web source]</li>
</ul>
<h3>Usage</h3>
<ol>
<li>[Step 1]</li>
<li>[Step 2]</li>
</ol>
</div>
</section>
</main>
<footer>
<p>Claude Code DevTools | Generated via web-enhanced infinite loop</p>
<p>Web Source: <a href="[URL]">[URL]</a></p>
</footer>
<script>
// All JavaScript inline - no external dependencies
// Core functionality implementation
// Web API integration (localStorage, IndexedDB, etc.)
// Real-time data processing
// Visualization rendering
// Export capabilities
</script>
</body>
</html>
Tool Categories & Progressive Evolution
Foundation Tools (Iterations 1-5): Data Access & Visualization
Focus: Basic transcript reading, parsing, and simple visualizations
Example Tools:
- Transcript Viewer: Load and display Claude Code JSONL transcripts with syntax highlighting
- Session Timeline: Visualize conversation flow over time with message markers
- Tool Usage Chart: Bar chart showing which tools were used and how often
- Search Interface: Simple keyword search across transcript content
- Export Utility: Convert JSONL to JSON, CSV, or Markdown formats
Web Learning Focus:
- File API and FileReader for local file handling
- LocalStorage and IndexedDB for data persistence
- Canvas or SVG for basic charts
- CSS Grid and Flexbox for layouts
- JSON parsing and data transformation
Intermediate Tools (Iterations 6-12): Advanced Search & Analytics
Focus: Sophisticated search, filtering, pattern detection, and analytics
Example Tools:
- Multi-Facet Search: Fuzzy search, regex patterns, field-specific filtering
- Conversation Graph: Node-link diagram showing message relationships (parent-child)
- Productivity Dashboard: Analytics on coding velocity, tool efficiency, session patterns
- Error Pattern Detector: Identify and categorize common errors across sessions
- Code Extraction Tool: Pull out all code blocks from conversations with syntax highlighting
- Session Comparator: Side-by-side comparison of different coding sessions
Web Learning Focus:
- Advanced regex and fuzzy matching algorithms
- D3.js or similar for interactive visualizations
- WebWorkers for performance with large datasets
- Advanced filtering and sorting algorithms
- Statistical analysis and pattern recognition
Advanced Tools (Iterations 13-20): Coordination & Communication
Focus: Multi-instance coordination, shared memory, real-time collaboration
Example Tools:
- Session Orchestrator: Coordinate multiple Claude Code instances on different tasks
- Shared Context Manager: Maintain shared knowledge base across instances
- Cross-Instance Search: Search transcripts from multiple machines/projects
- Collaboration Board: Real-time task assignment and progress tracking
- Knowledge Graph Builder: Build interconnected knowledge from all conversations
- MCP Server Monitor: Track and visualize MCP server activity across instances
- Agent Communication Hub: Message passing between different Claude agents
Web Learning Focus:
- WebSocket and Server-Sent Events for real-time communication
- SharedArrayBuffer for advanced memory sharing
- Service Workers for background sync
- IndexedDB for large-scale data storage
- Broadcast Channel API for tab communication
- WebRTC for peer-to-peer coordination
Expert Tools (Iterations 21+): AI-Enhanced & Predictive Systems
Focus: Machine learning integration, predictive analytics, automated workflows
Example Tools:
- Smart Context Recommender: Suggest relevant past conversations for current task
- Predictive Tool Selector: Predict which tools will be needed next
- Workflow Automation Builder: Record and replay common coding patterns
- Anomaly Detector: Identify unusual patterns or potential issues
- Session Optimizer: Suggest improvements based on past successful patterns
- Auto-Tagger: Automatically categorize and tag conversations
- Semantic Search: Vector-based similarity search across all transcripts
Web Learning Focus:
- TensorFlow.js for in-browser ML
- Vector embeddings and similarity search
- Natural language processing libraries
- Recommendation algorithms
- Clustering and classification techniques
- Automated pattern recognition
Design Principles
Developer-First Design
- Dark Theme Primary: Easy on eyes during long coding sessions
- Monospace Fonts: Code-friendly typography
- Syntax Highlighting: Proper code colorization in all contexts
- Keyboard Shortcuts: Power-user keyboard navigation
- Copy-Friendly: Easy to copy data, code, commands
- Performance Focused: Fast load, responsive interactions
Self-Contained Architecture
- No External Dependencies: All code inline (CSS, JS, data processing)
- Offline Capable: Works without internet after initial load
- Browser Storage: Leverage localStorage, IndexedDB for persistence
- File API Integration: Direct file access where browser supports it
- Progressive Enhancement: Basic functionality without advanced features
Data Integration Strategies
Claude Code Transcript Format:
{
"uuid": "message-uuid",
"sessionId": "session-id",
"timestamp": "2025-10-09T18:00:00Z",
"message": {
"role": "user|assistant",
"content": "message content or array of content blocks"
},
"type": "user|assistant|meta|tool",
"cwd": "/working/directory",
"version": "1.0.0",
"gitBranch": "main"
}
Tool Should Handle:
- JSONL line-by-line parsing
- Message threading via parent-child relationships
- Tool call extraction from content blocks
- Usage statistics calculation
- Multi-session aggregation
- Export to multiple formats
Observability Features
What to Track:
- Session duration and message counts
- Tool usage frequency and success rates
- Model used and token consumption
- Error patterns and resolution times
- Working directory and git branch context
- File read/write operations
- Command executions
- Search query patterns
Visualization Types:
- Timeline views of session activity
- Network graphs of message relationships
- Heatmaps of activity by time/day
- Bar/pie charts for tool usage
- Scatter plots for correlation analysis
- Tree maps for hierarchical data
Search Capabilities
Search Modes:
- Full-text search across all content
- Regex pattern matching
- Fuzzy matching for typo tolerance
- Field-specific search (content, session ID, tools, etc.)
- Date range filtering
- Role-based filtering (user vs assistant)
- Tool-based filtering
- Model-based filtering
Result Features:
- Contextual snippets with highlighting
- Score-based ranking
- Grouped by session
- Exportable results
- Result caching for performance
Coordination Mechanisms
Cross-Instance Communication:
- Shared localStorage namespace conventions
- IndexedDB for larger shared datasets
- File-based message passing (watch directories)
- WebSocket server for real-time sync
- Broadcast Channel for same-origin tabs
Shared Memory Patterns:
- Central knowledge base structure
- Version control for concurrent edits
- Conflict resolution strategies
- Cache invalidation protocols
- State synchronization methods
Progressive Web Learning Integration
Foundation Level (Iterations 1-5)
Web Resources to Learn From:
- MDN Web Docs on File API and FileReader
- LocalStorage and IndexedDB tutorials
- Canvas and SVG chart examples
- JSON parsing best practices
- Responsive CSS Grid/Flexbox layouts
Techniques to Apply:
- File reading and parsing patterns
- Data storage strategies
- Basic visualization techniques
- Clean UI component design
- Error handling patterns
Intermediate Level (Iterations 6-12)
Web Resources to Learn From:
- D3.js documentation and examples
- Observable notebooks for visualization
- Advanced search algorithm implementations
- Performance optimization guides
- WebWorker usage patterns
Techniques to Apply:
- Interactive data visualizations
- Efficient search algorithms
- Background processing with workers
- Advanced filtering techniques
- Statistical analysis methods
Advanced Level (Iterations 13-20)
Web Resources to Learn From:
- WebSocket and SSE real-time communication
- Service Worker documentation
- Broadcast Channel API guides
- WebRTC peer-to-peer examples
- Advanced IndexedDB patterns
Techniques to Apply:
- Real-time synchronization
- Background sync strategies
- Cross-tab communication
- P2P data sharing
- Large-scale data management
Expert Level (Iterations 21+)
Web Resources to Learn From:
- TensorFlow.js tutorials
- Vector search implementations
- NLP in JavaScript guides
- ML model optimization
- Recommendation system patterns
Techniques to Apply:
- In-browser machine learning
- Semantic search algorithms
- Predictive analytics
- Automated categorization
- Pattern recognition
Quality Standards
Functionality
- Tool must solve a real Claude Code developer need
- Must handle realistic data volumes (1000+ messages)
- Must provide clear value over manual approaches
- Error handling for malformed data
- Graceful degradation for missing data
Usability
- Intuitive interface requiring no documentation to start
- Clear visual hierarchy and information architecture
- Responsive design for different screen sizes
- Accessible (keyboard navigation, screen readers)
- Fast initial load and responsive interactions
Code Quality
- Clean, well-commented JavaScript
- Organized CSS with consistent naming
- Efficient algorithms and data structures
- No memory leaks or performance issues
- Browser compatibility (modern browsers)
Documentation
- Clear tool purpose statement
- Feature list with examples
- Web source attribution with specifics
- Techniques learned and applied
- Usage instructions
Web Integration
- Must cite specific web source URL
- Must demonstrate 1-3 specific techniques from source
- Must show how web learning improved the tool
- Should build on techniques from previous iterations
- Must document what was learned
Iteration Examples
Example 1: Session Timeline Viewer (Foundation)
Web Source: MDN Canvas Tutorial Techniques Applied:
- Canvas API for rendering timeline
- RequestAnimationFrame for smooth scrolling
- Mouse event handling for interaction Features:
- Horizontal timeline of session messages
- Color-coded by message role
- Hover for message preview
- Click to expand full message
Example 7: Conversation Graph Visualizer (Intermediate)
Web Source: D3.js Force-Directed Graph Tutorial Techniques Applied:
- D3 force simulation for node layout
- Drag interactions for node repositioning
- SVG path generation for message links Features:
- Interactive node-link diagram
- Parent-child message relationships
- Tool usage indicators on nodes
- Zoom and pan controls
Example 15: Shared Context Manager (Advanced)
Web Source: IndexedDB API Guide Techniques Applied:
- IndexedDB for cross-session storage
- Broadcast Channel for tab sync
- Structured cloning for data transfer Features:
- Central knowledge base across instances
- Real-time updates when data changes
- Query interface for context retrieval
- Export/import for sharing
Example 23: Smart Context Recommender (Expert)
Web Source: TensorFlow.js Text Classification Techniques Applied:
- Universal Sentence Encoder for embeddings
- Cosine similarity for relevance scoring
- K-nearest neighbors for recommendations Features:
- Semantic search across all sessions
- Context similarity scoring
- Automatic related-session suggestions
- Learning from usage patterns
Ultra-Thinking Directive
Before each tool creation, deeply consider:
Problem Space:
- What specific pain point does this solve for Claude Code users?
- How do developers currently handle this need manually?
- What would make this tool indispensable?
- How does this fit into the broader developer workflow?
Web Learning Integration:
- What web techniques would most benefit this tool?
- How can the assigned URL's teachings be applied creatively?
- What patterns from the web source are most valuable?
- How can we adapt web examples to our specific use case?
Technical Approach:
- What's the most efficient data structure for this tool?
- How do we handle large datasets without performance issues?
- What browser APIs provide the best capabilities?
- How do we ensure offline functionality?
User Experience:
- How can we make complex data immediately understandable?
- What visualizations best convey the information?
- How do we balance power-user features with simplicity?
- What keyboard shortcuts would power users want?
Progressive Enhancement:
- How does this build on previous tool iterations?
- What techniques from earlier tools can be reused?
- How does this enable future tool possibilities?
- What knowledge does this add to our toolkit?
Generate tools that are:
- Immediately Useful: Solve real problems developers face today
- Progressively Enhanced: Each iteration more sophisticated than the last
- Web-Informed: Demonstrably improved by web research
- Self-Contained: Work perfectly as standalone HTML files
- Developer-Friendly: Built by developers, for developers
- Future-Ready: Enable coordination and advanced workflows