PRD 07: Complete Hook Coverage & API Mapping Strategy

1. Overview

Purpose

Achieve 100% coverage of all API methods through comprehensive React hooks, ensuring every backend endpoint is accessible to frontend components with proper error handling, caching, and state management.

Vision Alignment

Following the Context Engineering paradigm:

• Atoms: Individual API method hooks

• Molecules: Grouped hooks by functionality

• Cells: Complete hook coverage per domain

• Organs: Cross-domain hook coordination

• Organisms: Full frontend-backend integration

2. Problem Statement

Current State Analysis

• API Methods: 194 methods in api-client.ts

• Hook Files: 20 files in hooks/ directory

• Coverage: 10% (20 hooks for 194 methods)

• Missing: 174 methods lack React hooks

Critical Issues

1. Incomplete Coverage: 90% of API methods inaccessible via hooks

2. Manual API Calls: Components must call apiClient.method() directly

3. No Caching: Missing React Query benefits for most endpoints

4. Inconsistent Patterns: Mix of hook patterns across domains

5. Error Handling: No standardized error handling for missing hooks

3. Success Criteria

• 100% API method coverage (194 methods → 194+ hooks)

• Zero direct apiClient calls in components

• Consistent React Query patterns across all hooks

• Standardized error handling and loading states

• Complete TypeScript type safety

• Performance optimization through caching

4. Current Coverage Analysis

✅ Existing Hook Files (20 files)

use-agent-api.ts          (15 methods covered)
use-analytics-api.ts      (8 methods covered)
use-api-debug.ts          (1 method covered)
use-api.ts                (5 methods covered)
use-context-api.ts        (6 methods covered)
use-document-api.ts       (12 methods covered)
use-evaluation-api.ts     (4 methods covered)
use-field-theory.ts       (8 methods covered)
use-insights-api.ts       (3 methods covered)
use-knowledge-api.ts      (4 methods covered)
use-learning-api.ts       (4 methods covered)
use-memory-api.ts         (8 methods covered)
use-multi-agent-api.ts    (10 methods covered)
use-multi-agent.ts        (6 methods covered)
use-policy.ts             (1 method covered)
use-problems-api.ts       (3 methods covered)
use-recommendations-api.ts (3 methods covered)
use-synthesis-api.ts      (3 methods covered)
use-toast.ts              (1 method covered)
use-tools-api.ts          (2 methods covered)

Total Covered: ~107 methods (55% of existing hooks)

❌ Missing Hook Categories (11 new files needed)

1. System Configuration (26 methods)

2. Performance Monitoring (7 methods)

3. RAG System (5 methods)

4. Agent Execution (33 methods)

5. Coordination (2 methods)

6. Health Checks (8 methods)

7. Memory Management (8 methods)

8. Context Management (12 methods)

9. Tools Management (2 methods)

10. Permissions (2 methods)

11. Credentials (2 methods)

Total Missing: ~107 methods (45% gap)

5. Implementation Strategy

5.1 Phase 1: Complete Existing Hook Files (Week 1)

Priority 1: High-Usage Domains

// Extend existing hooks with missing methods
use-agent-api.ts: +18 methods (33 total)
use-document-api.ts: +8 methods (20 total)
use-analytics-api.ts: +12 methods (20 total)
use-context-api.ts: +6 methods (12 total)

Priority 2: Medium-Usage Domains

use-memory-api.ts: +2 methods (10 total)
use-field-theory.ts: +2 methods (10 total)
use-multi-agent-api.ts: +8 methods (18 total)

5.2 Phase 2: Create Missing Hook Files (Week 2)

New Hook Files Required

use-system-config-api.ts     (26 methods)
use-performance-api.ts        (7 methods)
use-rag-api.ts               (5 methods)
use-agent-execution-api.ts   (33 methods)
use-coordination-api.ts      (2 methods)
use-health-api.ts            (8 methods)
use-context-management-api.ts (12 methods)
use-tools-management-api.ts  (2 methods)
use-permissions-api.ts       (2 methods)
use-credentials-api.ts       (2 methods)

5.3 Phase 3: Standardization & Optimization (Week 3)

Consistent Patterns

// Standard hook structure
export function use[Domain][Method]() {
  return useQuery({
    queryKey: ['domain', 'method'],
    queryFn: () => apiClient.method(),
    staleTime: 5 * 60 * 1000, // 5 minutes
    retry: 3,
    retryDelay: attemptIndex => Math.min(1000 * 2 ** attemptIndex, 30000)
  })
}

export function use[Domain][Mutation]() {
  return useMutation({
    mutationFn: (data: any) => apiClient.mutation(data),
    onSuccess: () => {
      queryClient.invalidateQueries(['domain'])
    }
  })
}

6. Detailed Implementation Plan

6.1 Week 1: Complete Existing Hooks

Day 1-2: Agent Domain Completion

// File: use-agent-api.ts
// Add missing methods:
- getAgentRuns()
- getAgentLogs() 
- getAgentStats()
- startAgent()
- stopAgent()
- pauseAgent()
- getAgentAnalytics()
- getAgentCoordination()
- getAgentSkillsFromSkillsAPI()
- addSkillToAgent()
- removeSkillFromAgent()
- getAgentPatterns()
- updateAgentPatterns()
- getAgentPerformance()
- getAvailableAgents()
- getSystemAgentTypes()
- getSystemAgentStatistics()
- getSystemAgentStatus()
- executeSystemAgent()

Day 3-4: Document Domain Completion

// File: use-document-api.ts  
// Add missing methods:
- uploadDocument()
- preprocessDocument()
- getDocuments()
- getDocument()
- updateDocument()
- deleteDocument()
- getDocumentAnalytics()
- getDocumentInsights()

Day 5: Analytics Domain Completion

// File: use-analytics-api.ts
// Add missing methods:
- getAnalyticsOverview()
- getAnalyticsAgent()
- getAnalyticsAgents()
- getAnalyticsContext()
- trackAnalyticsAgentExecution()
- trackAnalyticsContextOptimization()
- getAnalyticsSystemHealth()
- getAnalyticsDashboardOverview()
- getPerformanceAnalytics()
- getAgentAnalytics()
- getWorkflowAnalytics()
- getSystemAnalytics()

6.2 Week 2: Create Missing Hook Files

Day 1: System Configuration

// File: use-system-config-api.ts
export function useSystemHealth() { ... }
export function useSystemMetrics() { ... }
export function useSystemConfig() { ... }
export function useUpdateSystemConfig() { ... }
export function useSystemConfigKey() { ... }
export function useUpdateSystemConfigKey() { ... }
export function useSystemRAG() { ... }
export function useUpdateSystemRAG() { ... }
export function useSystemRAGConfig() { ... }
export function useTestSystemRAG() { ... }
export function useTestSystemRoute() { ... }
export function useSystemAgentTypes() { ... }
export function useSystemAgentStatistics() { ... }
export function useSystemAgentStatus() { ... }
export function useExecuteSystemAgent() { ... }
export function useSystemPerformanceBaseline() { ... }
export function useUpdateSystemLearningState() { ... }
export function useRunSystemPerformanceTest() { ... }
export function useSystemPerformanceComparison() { ... }
export function useSaveSystemConfig() { ... }
export function useGetSystemActivities() { ... }
export function useGetSystemAgentLogs() { ... }
export function useGetSystemAgentStats() { ... }
export function useStartSystemAgent() { ... }
export function useStopSystemAgent() { ... }
export function usePauseSystemAgent() { ... }

Day 2: Performance Monitoring

// File: use-performance-api.ts
export function usePerformanceBaseline() { ... }
export function useRunPerformanceTest() { ... }
export function usePerformanceComparison() { ... }
export function useAgentPerformance() { ... }
export function useEvaluationPerformanceMetrics() { ... }
export function useContextPerformance() { ... }
export function usePerformanceAnalytics() { ... }

Day 3: RAG System

// File: use-rag-api.ts
export function useSystemRAG() { ... }
export function useUpdateSystemRAG() { ... }
export function useSystemRAGConfig() { ... }
export function useTestSystemRAG() { ... }
export function useTestContextRAG() { ... }

Day 4: Agent Execution

// File: use-agent-execution-api.ts
export function useExecuteAgent() { ... }
export function useStartAgent() { ... }
export function useStopAgent() { ... }
export function usePauseAgent() { ... }
export function useAgentExecutionStatus() { ... }
export function useAgentExecutionResults() { ... }
export function useAgentExecutionLogs() { ... }
export function useAgentExecutionMetrics() { ... }
export function useAgentExecutionHistory() { ... }
export function useAgentExecutionQueue() { ... }
export function useAgentExecutionScheduling() { ... }
export function useAgentExecutionMonitoring() { ... }
export function useAgentExecutionOptimization() { ... }
export function useAgentExecutionDebugging() { ... }
export function useAgentExecutionTesting() { ... }
export function useAgentExecutionValidation() { ... }
export function useAgentExecutionReporting() { ... }
export function useAgentExecutionAnalytics() { ... }
export function useAgentExecutionAlerts() { ... }
export function useAgentExecutionConfiguration() { ... }
export function useAgentExecutionPermissions() { ... }
export function useAgentExecutionSecurity() { ... }
export function useAgentExecutionCompliance() { ... }
export function useAgentExecutionAudit() { ... }
export function useAgentExecutionBackup() { ... }
export function useAgentExecutionRecovery() { ... }
export function useAgentExecutionMigration() { ... }
export function useAgentExecutionScaling() { ... }
export function useAgentExecutionLoadBalancing() { ... }
export function useAgentExecutionFailover() { ... }
export function useAgentExecutionHealth() { ... }
export function useAgentExecutionMaintenance() { ... }
export function useAgentExecutionUpdates() { ... }

Day 5: Remaining Categories

// File: use-coordination-api.ts (2 methods)
// File: use-health-api.ts (8 methods)
// File: use-context-management-api.ts (12 methods)
// File: use-tools-management-api.ts (2 methods)
// File: use-permissions-api.ts (2 methods)
// File: use-credentials-api.ts (2 methods)

6.3 Week 3: Standardization & Testing

Day 1-2: Standardize Patterns

• Consistent error handling

• Standardized loading states

• Uniform caching strategies

• TypeScript type safety

Day 3-4: Integration Testing

• Test all hooks with real API calls

• Verify caching behavior

• Test error scenarios

• Performance optimization

Day 5: Documentation & Cleanup

• Update hook documentation

• Remove any remaining direct apiClient calls

• Performance benchmarking

• Final validation

7. Technical Implementation Details

7.1 Hook Template Structure

// Standard query hook template
export function use[Domain][Method](
  params?: MethodParams,
  options?: QueryOptions
) {
  return useQuery({
    queryKey: ['domain', 'method', params],
    queryFn: () => apiClient.method(params),
    enabled: !!params?.requiredParam,
    staleTime: 5 * 60 * 1000, // 5 minutes
    retry: 3,
    retryDelay: attemptIndex => Math.min(1000 * 2 ** attemptIndex, 30000),
    ...options
  })
}

// Standard mutation hook template
export function use[Domain][Mutation](
  options?: MutationOptions
) {
  const queryClient = useQueryClient()
  
  return useMutation({
    mutationFn: (data: MethodData) => apiClient.mutation(data),
    onSuccess: (data, variables, context) => {
      // Invalidate related queries
      queryClient.invalidateQueries(['domain'])
      
      // Optional: Update cache directly
      if (options?.optimisticUpdate) {
        queryClient.setQueryData(['domain', 'method'], data)
      }
    },
    onError: (error, variables, context) => {
      // Log error or show toast
      console.error('Mutation failed:', error)
    },
    ...options
  })
}

7.2 Error Handling Strategy

// Centralized error handling
interface ApiError {
  message: string
  status: number
  code?: string
  details?: any
}

// Error boundary for hooks
export function useApiErrorHandler() {
  const toast = useToast()
  
  return useCallback((error: ApiError) => {
    if (error.status >= 500) {
      toast({
        title: "Server Error",
        description: "Please try again later",
        variant: "destructive"
      })
    } else if (error.status === 401) {
      toast({
        title: "Authentication Required",
        description: "Please log in again",
        variant: "destructive"
      })
    } else {
      toast({
        title: "Error",
        description: error.message,
        variant: "destructive"
      })
    }
  }, [toast])
}

7.3 Caching Strategy

// Cache configuration per domain
const CACHE_CONFIG = {
  agents: {
    staleTime: 5 * 60 * 1000, // 5 minutes
    cacheTime: 30 * 60 * 1000, // 30 minutes
  },
  documents: {
    staleTime: 10 * 60 * 1000, // 10 minutes
    cacheTime: 60 * 60 * 1000, // 1 hour
  },
  analytics: {
    staleTime: 2 * 60 * 1000, // 2 minutes
    cacheTime: 10 * 60 * 1000, // 10 minutes
  },
  system: {
    staleTime: 1 * 60 * 1000, // 1 minute
    cacheTime: 5 * 60 * 1000, // 5 minutes
  }
}

8. Database Schema Updates

8.1 Hook Usage Tracking

-- Track hook usage for optimization
CREATE TABLE hook_usage_stats (
    id SERIAL PRIMARY KEY,
    hook_name VARCHAR(255),
    component_name VARCHAR(255),
    usage_count INTEGER DEFAULT 0,
    last_used TIMESTAMP DEFAULT NOW(),
    avg_response_time FLOAT,
    error_rate FLOAT,
    created_at TIMESTAMP DEFAULT NOW()
);

-- Track API method coverage
CREATE TABLE api_coverage_stats (
    id SERIAL PRIMARY KEY,
    method_name VARCHAR(255),
    has_hook BOOLEAN DEFAULT FALSE,
    hook_file VARCHAR(255),
    last_tested TIMESTAMP,
    test_status VARCHAR(50),
    created_at TIMESTAMP DEFAULT NOW()
);

9. API Endpoints Validation

9.1 FastAPI Route Verification

# Verify all routes are enabled in main.py
@app.get("/api/system/health")
@app.get("/api/system/metrics") 
@app.get("/api/system/config")
@app.put("/api/system/config")
@app.get("/api/system/config/{key}")
@app.put("/api/system/config/{key}")
@app.get("/api/system/rag")
@app.put("/api/system/rag")
@app.get("/api/system/rag/{id}")
@app.post("/api/system/rag/{id}/test")
@app.post("/api/system/route/test")
@app.get("/api/system/agents/types")
@app.get("/api/system/agents/statistics")
@app.get("/api/system/agents/{agent_id}/status")
@app.post("/api/system/agents/{agent_id}/execute")
@app.get("/api/system/performance/baseline")
@app.put("/api/system/learning/state")
@app.post("/api/system/performance/test")
@app.post("/api/system/performance/comparison")
# ... continue for all 194 methods

9.2 Route-to-Hook Mapping

// Mapping table for validation
const ROUTE_HOOK_MAPPING = {
  '/api/system/health': 'useSystemHealth',
  '/api/system/metrics': 'useSystemMetrics',
  '/api/system/config': 'useSystemConfig',
  '/api/system/config': 'useUpdateSystemConfig',
  // ... continue for all routes
}

10. Testing Strategy

10.1 Unit Tests

// Test each hook individually
describe('useSystemHealth', () => {
  it('should fetch system health data', async () => {
    const { result } = renderHook(() => useSystemHealth())
    
    await waitFor(() => {
      expect(result.current.isSuccess).toBe(true)
      expect(result.current.data).toHaveProperty('status')
    })
  })
  
  it('should handle errors gracefully', async () => {
    // Mock API error
    server.use(
      rest.get('/api/system/health', (req, res, ctx) => {
        return res(ctx.status(500))
      })
    )
    
    const { result } = renderHook(() => useSystemHealth())
    
    await waitFor(() => {
      expect(result.current.isError).toBe(true)
    })
  })
})

10.2 Integration Tests

// Test hook-to-API integration
describe('Hook-API Integration', () => {
  it('should call correct API endpoint', async () => {
    const mockApiCall = jest.spyOn(apiClient, 'getSystemHealth')
    
    renderHook(() => useSystemHealth())
    
    expect(mockApiCall).toHaveBeenCalledWith()
  })
})

10.3 Coverage Tests

// Verify 100% API coverage
describe('API Coverage', () => {
  it('should have hooks for all API methods', () => {
    const apiMethods = getAllApiMethods()
    const hookMethods = getAllHookMethods()
    
    expect(hookMethods.length).toBeGreaterThanOrEqual(apiMethods.length)
  })
})

11. Success Metrics

11.1 Coverage Metrics

• API Method Coverage: 100% (194/194 methods)

• Hook File Coverage: 100% (31/31 files)

• Component Integration: 100% (no direct apiClient calls)

• Type Safety: 100% (all hooks typed)

11.2 Performance Metrics

• Cache Hit Rate: >80%

• Average Response Time: <200ms

• Error Rate: <1%

• Bundle Size Impact: <50KB

11.3 Developer Experience

• Time to Add New Hook: <5 minutes

• Consistency Score: 100%

• Documentation Coverage: 100%

12. Implementation Timeline

Week 1: Complete Existing Hooks

• Day 1-2: Agent domain completion (+18 methods)

• Day 3-4: Document domain completion (+8 methods)

• Day 5: Analytics domain completion (+12 methods)

Week 2: Create Missing Hook Files

• Day 1: System configuration hooks (26 methods)

• Day 2: Performance monitoring hooks (7 methods)

• Day 3: RAG system hooks (5 methods)

• Day 4: Agent execution hooks (33 methods)

• Day 5: Remaining categories (36 methods)

Week 3: Standardization & Testing

• Day 1-2: Standardize patterns and error handling

• Day 3-4: Integration testing and optimization

• Day 5: Documentation and final validation

13. Dependencies

• PRD 01: Core Orchestration (for agent execution hooks)

• PRD 02: Agent Factory (for agent management hooks)

• PRD 03: Context Engineering (for context hooks)

• PRD 06: Monitoring Dashboard (for analytics hooks)

14. Risk Mitigation

14.1 Technical Risks

• API Changes: Version all hooks with API changes

• Performance Impact: Monitor bundle size and runtime performance

• Type Safety: Maintain strict TypeScript compliance

14.2 Implementation Risks

• Scope Creep: Focus on core functionality first

• Testing Coverage: Ensure comprehensive test coverage

• Documentation: Maintain up-to-date documentation

15. Success Criteria

15.1 Functional Requirements

• All 194 API methods have corresponding hooks

• Zero direct apiClient calls in components

• Consistent error handling across all hooks

• Proper caching and performance optimization

15.2 Non-Functional Requirements

• TypeScript type safety for all hooks

• Comprehensive test coverage (>90%)

• Performance benchmarks met

• Developer experience improved

15.3 Quality Assurance

• Code review completed

• Integration tests passing

• Performance tests passing

• Documentation updated

16. Post-Implementation

16.1 Monitoring

• Track hook usage patterns

• Monitor performance metrics

• Collect developer feedback

• Identify optimization opportunities

16.2 Maintenance

• Regular dependency updates

• Performance optimization

• Bug fixes and improvements

• Feature enhancements

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This PRD ensures 100% API coverage through comprehensive React hooks, providing a solid foundation for frontend-backend integration with optimal performance and developer experience.