9f09bb3066
Implements the foundation for autonomous Nexus expansion: - NexusArchitect tool with 6 operations (design_room, create_portal, add_lighting, validate_scene, export_scene, get_summary) - Security-first validation with banned pattern detection - LLM prompt generators for Three.js code generation - 48 comprehensive tests (100% pass) - Complete documentation with API reference Addresses: hermes-agent#42 (Phase 31) Related: Burn Report #6
139 lines
5.1 KiB
Markdown
139 lines
5.1 KiB
Markdown
# Phase 31: Nexus Architect Tool — Implementation Summary
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## Overview
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Successfully designed and scaffolded the **Nexus Architect Tool** for autonomous 3D world generation in a Three.js-based virtual environment. This tool enables Timmy (the Hermes Agent) to design rooms, create portals, add lighting, and generate validated Three.js code.
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## Files Created
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### 1. `tools/nexus_architect.py` (42KB)
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Main tool implementation with:
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- **6 registered tools**: `nexus_design_room`, `nexus_create_portal`, `nexus_add_lighting`, `nexus_validate_scene`, `nexus_export_scene`, `nexus_get_summary`
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- **Data models**: RoomConfig, PortalConfig, LightConfig, ArchitectureConfig, SceneGraph
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- **LLM prompt generators**: Structured prompts for Three.js code generation
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- **Security validation**: Banned pattern detection, syntax checking, code sanitization
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- **Tool registry integration**: Automatic registration with Hermes tool system
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### 2. `tests/tools/test_nexus_architect.py` (24KB)
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Comprehensive test suite with:
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- **48 test cases** covering all functionality
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- **6 test classes**: Data models, validation, prompt generation, core functionality, integration, security, performance
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- **100% test pass rate**
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### 3. `docs/nexus_architect.md` (15KB)
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Complete documentation including:
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- Architecture overview with diagrams
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- Tool usage examples and API reference
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- Scene graph format specification
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- Security model and allowed/banned APIs
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- Troubleshooting guide
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## Key Design Decisions
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### Architecture Research Findings
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Since no existing "the-nexus" repository was found in the codebase, the architecture was designed based on:
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- Common Three.js scene management patterns
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- Task requirements for rooms, portals, and lighting
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- Security best practices for LLM-generated code
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### Data Model Design
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```
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Room: name, theme, dimensions, features, fog settings
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Portal: name, source/target rooms, position, style, color
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Light: name, type, position, color, intensity, shadows
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SceneGraph: versioned container for all world elements
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```
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### Security Model
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**Banned Patterns** (detected and rejected):
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- `eval()`, `Function()`, dynamic code execution
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- `fetch()`, `WebSocket`, network requests
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- `localStorage`, `sessionStorage`, storage access
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- `document.write`, `window.location`, DOM manipulation
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**Validation Features**:
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- Regex-based pattern detection
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- Syntax validation (balanced braces/parentheses)
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- Code sanitization (comment removal, debugger stripping)
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- Safety scoring (100 - errors*20 - warnings*5)
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### LLM Integration Flow
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1. User request → structured configuration
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2. Configuration → LLM prompt (with context/mental state)
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3. LLM generates Three.js code
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4. Code validation (security + syntax)
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5. Validated code → Nexus runtime
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## Tool Capabilities
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### nexus_design_room
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- Creates room configuration with 7 themes (meditation, tech_lab, nature, crystal_cave, library, void, custom)
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- Generates structured LLM prompt for Three.js room code
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- Supports mental state context for adaptive design
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### nexus_create_portal
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- Connects two rooms with visual portal
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- 5 portal styles (circular, rectangular, stargate, dissolve, glitch)
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- Generates portal animation and effect code prompts
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### nexus_add_lighting
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- Adds 6 light types (ambient, directional, point, spot, hemisphere, rect_area)
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- Configurable shadows, colors, intensity
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- Generates lighting system code prompts
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### nexus_validate_scene
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- Security validation against banned patterns
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- Syntax checking for JavaScript/Three.js
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- Extracts code from markdown blocks
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- Returns safety score (0-100)
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### nexus_export_scene
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- Exports to JSON or JavaScript module format
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- Includes complete scene graph with rooms, portals, lights
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- Summary statistics for scene complexity
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### nexus_get_summary
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- Returns current world state overview
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- Room connectivity via portal network
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- Light and architecture counts
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## Testing Coverage
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| Category | Tests | Status |
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|----------|-------|--------|
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| Data Models | 6 | ✅ Pass |
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| Code Validation | 7 | ✅ Pass |
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| Code Sanitization | 3 | ✅ Pass |
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| Prompt Generation | 4 | ✅ Pass |
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| Core Functionality | 13 | ✅ Pass |
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| Tool Entry Points | 5 | ✅ Pass |
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| Integration | 3 | ✅ Pass |
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| Security | 3 | ✅ Pass |
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| Performance | 2 | ✅ Pass |
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| **Total** | **48** | **✅ All Pass** |
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## Future Work (Phase 2+)
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1. **LLM Integration**: Connect to actual LLM API for code generation
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2. **Asset Library**: Pre-built 3D models and textures
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3. **Runtime Integration**: Hot-reload, physics engine (Cannon.js/Ammo.js)
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4. **Multi-Agent**: Room ownership, concurrent editing
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5. **Persistence**: Database storage for scenes
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6. **UI Components**: Visualization of scene graph
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## Integration Notes
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The tool is ready for integration with:
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- Hermes tool registry (auto-registers on import)
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- LLM providers (OpenAI, Anthropic, etc.)
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- Three.js runtime environments
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- Session management for persistent world state
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## Code Quality
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- **Type hints**: Full typing for all functions
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- **Docstrings**: Comprehensive documentation
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- **Error handling**: Graceful failure with informative messages
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- **Security**: Defense-in-depth for code generation
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- **Testing**: Comprehensive coverage across all categories
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