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# πŸ—οΈ Arquitetura - CidadΓ£o.AI Backend

**Autor**: Anderson Henrique da Silva  
**Última Atualização**: 2025-09-25 18:15:00 -03:00 (São Paulo, Brasil)

[English version below](#-architecture---cidadΓ£oai-backend-english)

## πŸ“Š VisΓ£o Geral

O CidadΓ£o.AI Γ© um sistema multi-agente de IA para anΓ‘lise de transparΓͺncia governamental brasileira, construΓ­do com arquitetura modular e escalΓ‘vel.

## 🧠 Sistema Multi-Agente

### Hierarquia de Agentes

```
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚                     UsuΓ‘rio / Frontend                       β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜
                                  β”‚
                                  β–Ό
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚                    API Gateway (FastAPI)                     β”‚
β”‚                  Rate Limiting | Auth | CORS                 β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜
                                  β”‚
                                  β–Ό
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚                 🏎️ Ayrton Senna (Router)                    β”‚
β”‚              DetecΓ§Γ£o de IntenΓ§Γ£o | Roteamento              β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜
                                  β”‚
                β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
                β–Ό                                   β–Ό
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”   β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚    🎯 Abaporu (Master)        β”‚   β”‚   Agentes Diretos       β”‚
β”‚   OrquestraΓ§Γ£o Complexa       β”‚   β”‚  (Para tarefas simples) β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜   β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜
                β”‚
                β–Ό
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚                    Pool de Agentes                           β”‚
β”œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€
β”‚ πŸ” Zumbi      β”‚ πŸ“Š Anita     β”‚ πŸ“ Tiradentes β”‚ 🧠 NanΓ£     β”‚
β”‚ Anomalias     β”‚ PadrΓ΅es     β”‚ RelatΓ³rios   β”‚ MemΓ³ria     β”‚
β”œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€
β”‚ βš–οΈ BonifΓ‘cio  β”‚ πŸ“š Machado   β”‚ πŸ›‘οΈ Dandara   β”‚ 🌍 LampiΓ£o  β”‚
β”‚ PolΓ­ticas     β”‚ Textos      β”‚ JustiΓ§a      β”‚ Regional    β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜
```

### Classes Base

1. **BaseAgent**
   - Retry logic com backoff exponencial
   - Monitoramento integrado (Prometheus)
   - Lifecycle management
   - Error handling

2. **ReflectiveAgent**
   - Auto-reflexΓ£o com threshold de qualidade (0.8)
   - MΓ‘ximo 3 iteraΓ§Γ΅es de melhoria
   - Self-improvement loop

### Estados dos Agentes

```python
class AgentState(Enum):
    IDLE = "idle"
    THINKING = "thinking"
    ACTING = "acting"
    WAITING = "waiting"
    ERROR = "error"
    COMPLETED = "completed"
```

## πŸ’Ύ EstratΓ©gia de Cache

### Multi-Layer Cache

```
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚   Request       β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”˜
         β–Ό
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚ L1: Memory      β”‚ ← 5ms latency
β”‚ (LRU Cache)     β”‚   TTL: 5 min
β””β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”˜
         β–Ό miss
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚ L2: Redis       β”‚ ← 20ms latency
β”‚ (Distributed)   β”‚   TTL: 1 hour
β””β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”˜
         β–Ό miss
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚ L3: Database    β”‚ ← 100ms latency
β”‚ (PostgreSQL)    β”‚   TTL: 24 hours
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜
```

### Cache Keys Strategy

```
chat:session:{session_id}:messages
investigation:{id}:results
agent:{agent_name}:state
portal:contracts:{org_code}:{page}
```

## πŸš€ OtimizaΓ§Γ΅es de Performance

### 1. Agent Pool
- PrΓ©-inicializaΓ§Γ£o de instΓ’ncias
- Warm-up automΓ‘tico
- Lifecycle management
- Health checks

### 2. Parallel Processing
```python
# EstratΓ©gias disponΓ­veis
- SEQUENTIAL: ExecuΓ§Γ£o em ordem
- PARALLEL: Todos ao mesmo tempo
- ADAPTIVE: Baseado em dependΓͺncias
- PRIORITY: Por prioridade
```

### 3. JSON Optimization
- orjson para serializaΓ§Γ£o 3x mais rΓ‘pida
- Streaming responses
- Compression (Brotli/Gzip)

## πŸ“Š AnΓ‘lise Espectral (FFT)

### DetecΓ§Γ£o de PadrΓ΅es PeriΓ³dicos

```python
# Pipeline de anΓ‘lise
1. Preprocessamento dos dados
2. AplicaΓ§Γ£o de FFT/RFFT
3. DetecΓ§Γ£o de picos no domΓ­nio da frequΓͺncia
4. ClassificaΓ§Γ£o de componentes sazonais
5. CΓ‘lculo de entropia espectral
```

### Thresholds de Anomalia

- **PreΓ§o**: 2.5 desvios padrΓ£o
- **ConcentraΓ§Γ£o de fornecedor**: > 70%
- **Contratos duplicados**: > 85% similaridade
- **FrequΓͺncia anΓ΄mala**: > 3 desvios no espectro

## πŸ”’ SeguranΓ§a

### AutenticaΓ§Γ£o e AutorizaΓ§Γ£o

```
β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”     β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”     β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚   Client    │────▢│  JWT Auth   │────▢│   API       β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜     β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜     β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜
                           β”‚
                           β–Ό
                    β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
                    β”‚ Rate Limit  β”‚
                    β”‚  by Tier    β”‚
                    β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜
```

### Rate Limiting Tiers

```python
RATE_LIMIT_TIERS = {
    "anonymous": "10/minute",
    "authenticated": "60/minute",
    "premium": "300/minute",
    "admin": "unlimited"
}
```

## πŸ“ˆ Monitoramento

### MΓ©tricas Prometheus

```python
# MΓ©tricas de agentes
agent_task_duration_seconds
agent_task_total
agent_errors_total
agent_reflection_iterations

# MΓ©tricas de API
http_request_duration_seconds
http_requests_total
active_websocket_connections

# MΓ©tricas de cache
cache_hits_total
cache_misses_total
cache_hit_rate
```

### Dashboards Grafana

1. **System Overview**: VisΓ£o geral do sistema
2. **Agent Performance**: Performance por agente
3. **API Metrics**: LatΓͺncia e throughput
4. **Cache Analytics**: Hit rate e eficiΓͺncia

## 🌐 IntegraΓ§Γ£o Portal da TransparΓͺncia

### Endpoints Funcionais (22%)

```
/contracts  β†’ GET com codigoOrgao obrigatΓ³rio
/servants   β†’ GET por CPF apenas
/agencies   β†’ GET informaΓ§Γ΅es de Γ³rgΓ£os
```

### LimitaΓ§Γ΅es Descobertas

- 78% dos endpoints retornam 403 Forbidden
- Sem documentaΓ§Γ£o oficial sobre nΓ­veis de acesso
- Dados de salΓ‘rio nΓ£o disponΓ­veis

## πŸ”„ Fluxo de Dados

```
1. Request β†’ API Gateway
2. Auth/Rate Limit Check
3. Intent Detection (Senna)
4. Cache Check (L1 β†’ L2 β†’ L3)
5. Agent Selection/Orchestration
6. External API Calls (if needed)
7. Result Processing
8. Cache Update
9. Response β†’ Client
```

---

# πŸ—οΈ Architecture - CidadΓ£o.AI Backend (English)

**Author**: Anderson Henrique da Silva  
**Last Updated**: 2025-09-25 18:15:00 -03:00 (SΓ£o Paulo, Brazil)

## πŸ“Š Overview

CidadΓ£o.AI is a multi-agent AI system for Brazilian government transparency analysis, built with modular and scalable architecture.

## 🧠 Multi-Agent System

### Agent Hierarchy

[Same diagram as above]

### Base Classes

1. **BaseAgent**
   - Retry logic with exponential backoff
   - Integrated monitoring (Prometheus)
   - Lifecycle management
   - Error handling

2. **ReflectiveAgent**
   - Self-reflection with quality threshold (0.8)
   - Maximum 3 improvement iterations
   - Self-improvement loop

### Agent States

[Same states as above]

## πŸ’Ύ Cache Strategy

### Multi-Layer Cache

[Same diagram as above]

### Cache Keys Strategy

[Same keys as above]

## πŸš€ Performance Optimizations

### 1. Agent Pool
- Pre-initialized instances
- Automatic warm-up
- Lifecycle management
- Health checks

### 2. Parallel Processing
[Same strategies as above]

### 3. JSON Optimization
- orjson for 3x faster serialization
- Streaming responses
- Compression (Brotli/Gzip)

## πŸ“Š Spectral Analysis (FFT)

### Periodic Pattern Detection

[Same pipeline as above]

### Anomaly Thresholds

- **Price**: 2.5 standard deviations
- **Supplier concentration**: > 70%
- **Duplicate contracts**: > 85% similarity
- **Anomalous frequency**: > 3 deviations in spectrum

## πŸ”’ Security

### Authentication and Authorization

[Same diagram as above]

### Rate Limiting Tiers

[Same tiers as above]

## πŸ“ˆ Monitoring

### Prometheus Metrics

[Same metrics as above]

### Grafana Dashboards

1. **System Overview**: System overview
2. **Agent Performance**: Performance by agent
3. **API Metrics**: Latency and throughput
4. **Cache Analytics**: Hit rate and efficiency

## 🌐 Portal da TransparΓͺncia Integration

### Functional Endpoints (22%)

[Same endpoints as above]

### Discovered Limitations

- 78% of endpoints return 403 Forbidden
- No official documentation about access levels
- Salary data not available

## πŸ”„ Data Flow

[Same flow as above]