suna/TOOL_REFACTOR_COMPLETE.md

# ✅ TOOL SYSTEM REFACTOR - COMPLETE

## 🎉 FULLY API-DRIVEN - NO STATIC DATA - NO BULLSHIT

All tool metadata is now **auto-generated** and **fetched from API**. Zero manual maintenance required.

---

## 📊 Stats

### Files Deleted
- ❌ `backend/core/utils/tool_groups.py` - **971 lines** ELIMINATED
- ❌ `frontend/src/components/agents/tools/tool-groups-comprehensive.ts` - **1,069 lines** ELIMINATED

**Total: 2,040 lines of duplicated legacy code DELETED** 🔥

### New Files (Clean, Auto-Generated)
- ✅ `backend/core/agentpress/tool.py` - Enhanced with decorators (258 lines)
- ✅ `backend/core/utils/tool_discovery.py` - Auto-discovery system (463 lines)
- ✅ `backend/core/tools_api.py` - REST API endpoints (67 lines)
- ✅ `frontend/src/hooks/react-query/tools/use-tools-metadata.ts` - React hook (61 lines)

**Total: 849 lines of clean, maintainable code**

### Net Result
**-1,191 lines** while adding MORE functionality 📉✨

---

## 🚀 How It Works Now

### Backend: Auto-Discovery

1. **Tool classes define their own metadata:**
```python
from core.agentpress.tool import Tool, tool_metadata, method_metadata, openapi_schema

@tool_metadata(
    display_name="File Operations",
    description="Create, read, edit, and manage files",
    icon="FolderOpen",
    color="bg-blue-100 dark:bg-blue-800/50"
)
class SandboxFilesTool(Tool):
    
    @method_metadata(
        display_name="Create File",
        description="Create new files with content"
    )
    @openapi_schema({...})
    def create_file(self, path: str, content: str):
        return self.success_response("File created!")
```

2. **Automatic discovery:**
   - Scans `backend/core/tools/` directory
   - Finds all `Tool` subclasses
   - Extracts metadata from decorators
   - Generates default metadata if decorators not present

3. **API endpoints:**
   - `GET /tools` - All tools with full metadata
   - `GET /tools/{tool_name}` - Specific tool details

### Frontend: API-Driven

1. **React Hook:**
```typescript
import { useToolsMetadata } from '@/hooks/react-query/tools/use-tools-metadata';

function MyComponent() {
  const { data, isLoading } = useToolsMetadata();
  
  if (data?.success) {
    const tools = data.tools;
    // All tool metadata available - auto-generated from backend
  }
}
```

2. **Component Integration:**
   - `GranularToolConfiguration` now fetches from API
   - Shows loading state while fetching
   - All utility functions accept `toolsData` parameter
   - Zero static data

---

## 🎯 Key Features

### 1. Zero Manual Maintenance
- Add a new tool → It's automatically discovered
- No need to update any metadata files
- No duplication between backend and frontend

### 2. Single Source of Truth
- Tool classes ARE the metadata
- Decorators make tools self-documenting
- API serves as the bridge

### 3. Type Safety
- Backend: Python type hints
- Frontend: TypeScript interfaces
- Auto-generated, always in sync

### 4. Backward Compatible
- Works with existing tool configurations
- `tool_migration.py` handles legacy configs
- Naming remains `agentpress_tools` throughout

---

## 📝 Adding a New Tool

### Old Way (MANUAL - SUCKED):
1. Create tool class
2. Update `tool_groups.py` (50+ lines)
3. Update `tool-groups-comprehensive.ts` (50+ lines)
4. Keep everything in sync manually
5. Pray you didn't forget something

### New Way (AUTOMATIC - AWESOME):
1. Create tool class with decorators:
```python
@tool_metadata(
    display_name="My New Tool",
    description="Does awesome stuff",
    icon="Sparkles"
)
class MyNewTool(Tool):
    @method_metadata(
        display_name="Do Thing",
        description="Does a thing"
    )
    @openapi_schema({...})
    def do_thing(self):
        return self.success_response("Done!")
```

**THAT'S IT!** The tool will automatically:
- ✅ Be discovered by the system
- ✅ Appear in API responses  
- ✅ Show up in the frontend
- ✅ Have proper UI metadata
- ✅ Work with all existing features

---

## 🔧 Updated Files

### Backend
- ✅ `backend/core/agentpress/tool.py` - Added decorators
- ✅ `backend/core/utils/tool_discovery.py` - New auto-discovery
- ✅ `backend/core/tools_api.py` - New API endpoints
- ✅ `backend/core/api.py` - Registered new router
- ✅ `backend/core/run.py` - Uses tool_discovery
- ✅ `backend/core/utils/tool_migration.py` - Uses tool_discovery
- ✅ `backend/core/tools/agent_builder_tools/agent_config_tool.py` - Uses tool_discovery

### Frontend
- ✅ `frontend/src/hooks/react-query/tools/use-tools-metadata.ts` - New hook
- ✅ `frontend/src/components/agents/tools/tool-groups.ts` - Now API-driven wrapper
- ✅ `frontend/src/components/agents/tools/granular-tool-configuration.tsx` - Fetches from API

---

## 🎊 Benefits Summary

| Before | After |
|--------|-------|
| 2,040 lines of duplicated metadata | Auto-generated from tool classes |
| Manual updates for every tool | Zero manual maintenance |
| Static frontend files | Dynamic API-driven |
| Out of sync issues | Always in sync |
| 2 sources of truth | 1 source of truth |
| Hard to add tools | Add tool → Done |

---

## 🚨 Important Notes

1. **Naming Convention:** We kept `agentpress_tools` naming throughout for consistency
2. **Backward Compatible:** Existing configs work without changes
3. **No Breaking Changes:** All existing functionality preserved
4. **Performance:** Tools metadata cached for 1 hour in frontend
5. **Fallbacks:** Components show loading state while fetching

---

## 🎯 Next Steps (Optional)

1. Add decorators to existing tools for better UI
2. Remove `tool-groups.ts` entirely once all components updated
3. Add more metadata fields (categories, tags, etc.)
4. Auto-generate tool documentation

---

**CLEAN. SIMPLE. AUTO-GENERATED. NO LEGACY BULLSHIT.** ✨

For technical details, see: `backend/core/utils/TOOL_SYSTEM_REFACTOR.md`