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Safety & Validation Framework

SAFLA's safety framework implements comprehensive validation mechanisms, risk assessment, and rollback capabilities to ensure secure and reliable autonomous operation. Safety is not an afterthought but a core architectural principle woven throughout every component.

🛡️ Safety Architecture Overview

graph TB
    subgraph "Multi-Layer Safety Architecture"
        subgraph "Input Safety Layer"
            INPUT_VAL[Input Validation]
            SANITIZATION[Data Sanitization]
            RATE_LIMIT[Rate Limiting]
            AUTH[Authentication]
        end
        
        subgraph "Process Safety Layer"
            CONSTRAINTS[Safety Constraints]
            MONITORING[Real-time Monitoring]
            CIRCUIT[Circuit Breakers]
            TIMEOUT[Timeout Controls]
        end
        
        subgraph "Output Safety Layer"
            OUTPUT_VAL[Output Validation]
            CONTENT_FILTER[Content Filtering]
            APPROVAL[Approval Gates]
            AUDIT[Audit Logging]
        end
        
        subgraph "System Safety Layer"
            RESOURCE[Resource Limits]
            EMERGENCY[Emergency Stop]
            ROLLBACK[Rollback System]
            RECOVERY[Recovery Procedures]
        end
        
        INPUT_VAL --> CONSTRAINTS
        SANITIZATION --> MONITORING
        RATE_LIMIT --> CIRCUIT
        AUTH --> TIMEOUT
        
        CONSTRAINTS --> OUTPUT_VAL
        MONITORING --> CONTENT_FILTER
        CIRCUIT --> APPROVAL
        TIMEOUT --> AUDIT
        
        OUTPUT_VAL --> RESOURCE
        CONTENT_FILTER --> EMERGENCY
        APPROVAL --> ROLLBACK
        AUDIT --> RECOVERY
    end
    
    style INPUT_VAL fill:#ffebee
    style CONSTRAINTS fill:#fff3e0
    style OUTPUT_VAL fill:#e8f5e8
    style RESOURCE fill:#e1f5fe
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🔒 Safety Constraints Engine

The constraints engine enforces safety rules through a hierarchical system of hard and soft constraints.

Constraint Types

graph LR
    subgraph "Constraint Hierarchy"
        subgraph "Hard Constraints"
            MEMORY_HARD[Memory Limits]
            CPU_HARD[CPU Limits]
            SECURITY_HARD[Security Rules]
            CRITICAL_HARD[Critical Operations]
        end
        
        subgraph "Soft Constraints"
            PERFORMANCE_SOFT[Performance Targets]
            QUALITY_SOFT[Quality Thresholds]
            RESOURCE_SOFT[Resource Preferences]
            USER_SOFT[User Preferences]
        end
        
        subgraph "Dynamic Constraints"
            CONTEXT_DYN[Context-Aware Rules]
            ADAPTIVE_DYN[Adaptive Limits]
            LEARNING_DYN[Learning-Based Rules]
            TEMPORAL_DYN[Time-Based Rules]
        end
        
        MEMORY_HARD --> PERFORMANCE_SOFT
        CPU_HARD --> QUALITY_SOFT
        SECURITY_HARD --> RESOURCE_SOFT
        CRITICAL_HARD --> USER_SOFT
        
        PERFORMANCE_SOFT --> CONTEXT_DYN
        QUALITY_SOFT --> ADAPTIVE_DYN
        RESOURCE_SOFT --> LEARNING_DYN
        USER_SOFT --> TEMPORAL_DYN
    end
    
    style MEMORY_HARD fill:#ffcdd2
    style PERFORMANCE_SOFT fill:#fff9c4
    style CONTEXT_DYN fill:#e1f5fe
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Implementing Safety Constraints

from safla.core.safety_validation import (
    SafetyConstraint, 
    ConstraintType, 
    ViolationAction,
    SafetyValidationFramework
)

# Define hard constraints (cannot be violated)
memory_constraint = SafetyConstraint(
    name="memory_limit",
    constraint_type=ConstraintType.HARD,
    description="Maximum memory usage limit",
    rule="memory_usage <= 1000000000",  # 1GB
    threshold=1000000000,
    violation_action=ViolationAction.EMERGENCY_STOP,
    priority=1  # Highest priority
)

cpu_constraint = SafetyConstraint(
    name="cpu_limit",
    constraint_type=ConstraintType.HARD,
    description="Maximum CPU usage limit",
    rule="cpu_usage <= 0.9",  # 90%
    threshold=0.9,
    violation_action=ViolationAction.THROTTLE,
    priority=1
)

# Define soft constraints (warnings and adjustments)
performance_constraint = SafetyConstraint(
    name="response_time",
    constraint_type=ConstraintType.SOFT,
    description="Target response time",
    rule="response_time <= 5.0",  # 5 seconds
    threshold=5.0,
    violation_action=ViolationAction.WARNING,
    priority=3
)

# Define dynamic constraints (context-aware)
adaptive_constraint = SafetyConstraint(
    name="adaptive_load",
    constraint_type=ConstraintType.DYNAMIC,
    description="Adaptive load management",
    rule="current_load <= adaptive_threshold",
    threshold_function=lambda context: min(0.8, context.get('available_resources', 0.5)),
    violation_action=ViolationAction.ADJUST,
    priority=2
)

# Initialize safety framework
safety_framework = SafetyValidationFramework()
await safety_framework.start()

# Add constraints
safety_framework.constraint_engine.add_constraint(memory_constraint)
safety_framework.constraint_engine.add_constraint(cpu_constraint)
safety_framework.constraint_engine.add_constraint(performance_constraint)
safety_framework.constraint_engine.add_constraint(adaptive_constraint)

Constraint Evaluation

# Evaluate constraints against current system state
system_state = {
    "memory_usage": 800000000,  # 800MB
    "cpu_usage": 0.75,          # 75%
    "response_time": 3.2,       # 3.2 seconds
    "current_load": 0.6,        # 60%
    "available_resources": 0.7   # 70%
}

evaluation_result = await safety_framework.constraint_engine.evaluate_constraints(
    system_state=system_state,
    context={"operation": "memory_search", "priority": "normal"}
)

if evaluation_result.has_violations:
    print("⚠️ Constraint violations detected:")
    for violation in evaluation_result.violations:
        print(f"  - {violation.constraint_name}: {violation.message}")
        print(f"    Action: {violation.action}")
        print(f"    Severity: {violation.severity}")
else:
    print("✅ All constraints satisfied")

🔍 Validation Pipeline

The validation pipeline implements multi-stage validation with comprehensive error handling and timeout controls.

Pipeline Architecture

graph TB
    subgraph "Validation Pipeline"
        subgraph "Pre-Processing Validation"
            INPUT_CHECK[Input Format Check]
            SCHEMA_VAL[Schema Validation]
            RANGE_CHECK[Range Validation]
            TYPE_CHECK[Type Validation]
        end
        
        subgraph "Security Validation"
            AUTH_CHECK[Authentication Check]
            AUTHZ_CHECK[Authorization Check]
            INJECTION_CHECK[Injection Prevention]
            MALWARE_CHECK[Malware Scanning]
        end
        
        subgraph "Business Logic Validation"
            RULE_CHECK[Business Rule Check]
            CONSISTENCY[Consistency Validation]
            DEPENDENCY[Dependency Validation]
            WORKFLOW[Workflow Validation]
        end
        
        subgraph "Post-Processing Validation"
            OUTPUT_CHECK[Output Validation]
            QUALITY_CHECK[Quality Assurance]
            COMPLIANCE[Compliance Check]
            FINAL_APPROVAL[Final Approval]
        end
        
        INPUT_CHECK --> AUTH_CHECK
        SCHEMA_VAL --> AUTHZ_CHECK
        RANGE_CHECK --> INJECTION_CHECK
        TYPE_CHECK --> MALWARE_CHECK
        
        AUTH_CHECK --> RULE_CHECK
        AUTHZ_CHECK --> CONSISTENCY
        INJECTION_CHECK --> DEPENDENCY
        MALWARE_CHECK --> WORKFLOW
        
        RULE_CHECK --> OUTPUT_CHECK
        CONSISTENCY --> QUALITY_CHECK
        DEPENDENCY --> COMPLIANCE
        WORKFLOW --> FINAL_APPROVAL
    end
    
    style INPUT_CHECK fill:#e3f2fd
    style AUTH_CHECK fill:#ffebee
    style RULE_CHECK fill:#e8f5e8
    style OUTPUT_CHECK fill:#fff3e0
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Validation Implementation

from safla.core.safety_validation import ValidationPipeline, ValidationStage

# Create validation pipeline
pipeline = ValidationPipeline(
    timeout=30.0,  # 30 seconds total timeout
    fail_fast=False,  # Continue validation even if some stages fail
    parallel_execution=True  # Run independent stages in parallel
)

# Define validation stages
input_validation = ValidationStage(
    name="input_validation",
    validator=validate_input_format,
    timeout=5.0,
    required=True,
    retry_count=0
)

security_validation = ValidationStage(
    name="security_validation",
    validator=validate_security,
    timeout=10.0,
    required=True,
    retry_count=1
)

business_validation = ValidationStage(
    name="business_validation",
    validator=validate_business_rules,
    timeout=15.0,
    required=True,
    retry_count=2
)

output_validation = ValidationStage(
    name="output_validation",
    validator=validate_output,
    timeout=5.0,
    required=True,
    retry_count=0
)

# Add stages to pipeline
pipeline.add_stage(input_validation)
pipeline.add_stage(security_validation)
pipeline.add_stage(business_validation)
pipeline.add_stage(output_validation)

# Execute validation pipeline
validation_result = await pipeline.execute(
    data=request_data,
    context=validation_context
)

if validation_result.is_valid:
    print("✅ Validation passed")
    proceed_with_operation(validation_result.validated_data)
else:
    print("❌ Validation failed")
    for error in validation_result.errors:
        print(f"  - Stage: {error.stage_name}")
        print(f"    Error: {error.message}")
        print(f"    Code: {error.error_code}")

Custom Validators

async def validate_input_format(data, context):
    """Validate input data format and structure."""
    errors = []
    
    # Check required fields
    required_fields = ["content", "metadata", "operation_type"]
    for field in required_fields:
        if field not in data:
            errors.append(f"Missing required field: {field}")
    
    # Validate data types
    if "content" in data and not isinstance(data["content"], str):
        errors.append("Content must be a string")
    
    # Validate content length
    if "content" in data and len(data["content"]) > 10000:
        errors.append("Content exceeds maximum length (10000 characters)")
    
    return ValidationResult(
        is_valid=len(errors) == 0,
        errors=errors,
        validated_data=data if len(errors) == 0 else None
    )

async def validate_security(data, context):
    """Validate security aspects of the request."""
    errors = []
    
    # Check for potential injection attacks
    dangerous_patterns = ["<script>", "javascript:", "eval(", "exec("]
    content = data.get("content", "")
    
    for pattern in dangerous_patterns:
        if pattern.lower() in content.lower():
            errors.append(f"Potentially dangerous pattern detected: {pattern}")
    
    # Validate user permissions
    user_id = context.get("user_id")
    operation = data.get("operation_type")
    
    if not await check_user_permission(user_id, operation):
        errors.append("Insufficient permissions for requested operation")
    
    return ValidationResult(
        is_valid=len(errors) == 0,
        errors=errors,
        validated_data=data if len(errors) == 0 else None
    )

⚠️ Risk Assessment Engine

The risk assessment engine quantifies potential risks using weighted factors and provides risk mitigation recommendations.

Risk Factor Framework

graph TB
    subgraph "Risk Assessment Framework"
        subgraph "Risk Categories"
            SECURITY[Security Risks]
            PERFORMANCE[Performance Risks]
            RELIABILITY[Reliability Risks]
            COMPLIANCE[Compliance Risks]
        end
        
        subgraph "Risk Factors"
            MEMORY_RISK[Memory Usage Risk]
            CPU_RISK[CPU Usage Risk]
            NETWORK_RISK[Network Risk]
            DATA_RISK[Data Integrity Risk]
        end
        
        subgraph "Risk Calculation"
            WEIGHTING[Factor Weighting]
            AGGREGATION[Risk Aggregation]
            SCORING[Risk Scoring]
            CLASSIFICATION[Risk Classification]
        end
        
        subgraph "Risk Response"
            MITIGATION[Risk Mitigation]
            MONITORING[Risk Monitoring]
            ESCALATION[Risk Escalation]
            REPORTING[Risk Reporting]
        end
        
        SECURITY --> MEMORY_RISK
        PERFORMANCE --> CPU_RISK
        RELIABILITY --> NETWORK_RISK
        COMPLIANCE --> DATA_RISK
        
        MEMORY_RISK --> WEIGHTING
        CPU_RISK --> AGGREGATION
        NETWORK_RISK --> SCORING
        DATA_RISK --> CLASSIFICATION
        
        WEIGHTING --> MITIGATION
        AGGREGATION --> MONITORING
        SCORING --> ESCALATION
        CLASSIFICATION --> REPORTING
    end
    
    style SECURITY fill:#ffebee
    style MEMORY_RISK fill:#fff3e0
    style WEIGHTING fill:#e8f5e8
    style MITIGATION fill:#e1f5fe
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Risk Factor Implementation

from safla.core.safety_validation import RiskFactor, RiskAssessment

# Define risk factors
def calculate_memory_risk(data):
    """Calculate risk based on memory usage."""
    memory_usage = data.get('memory_usage', 0)
    memory_limit = data.get('memory_limit', 1000000000)  # 1GB
    
    usage_ratio = memory_usage / memory_limit
    
    if usage_ratio < 0.5:
        return 0.1  # Low risk
    elif usage_ratio < 0.7:
        return 0.3  # Medium risk
    elif usage_ratio < 0.9:
        return 0.7  # High risk
    else:
        return 0.95  # Critical risk

def calculate_cpu_risk(data):
    """Calculate risk based on CPU usage."""
    cpu_usage = data.get('cpu_usage', 0)
    
    if cpu_usage < 0.5:
        return 0.1
    elif cpu_usage < 0.7:
        return 0.3
    elif cpu_usage < 0.9:
        return 0.6
    else:
        return 0.9

def calculate_operation_risk(data):
    """Calculate risk based on operation type."""
    operation_type = data.get('operation_type', 'read')
    risk_levels = {
        'read': 0.1,
        'write': 0.3,
        'delete': 0.7,
        'admin': 0.9,
        'system_modify': 0.95
    }
    return risk_levels.get(operation_type, 0.5)

# Create risk factors
memory_risk = RiskFactor(
    name="memory_risk",
    description="Risk based on memory usage",
    weight=0.3,
    calculator=calculate_memory_risk
)

cpu_risk = RiskFactor(
    name="cpu_risk",
    description="Risk based on CPU usage",
    weight=0.2,
    calculator=calculate_cpu_risk
)

operation_risk = RiskFactor(
    name="operation_risk",
    description="Risk based on operation type",
    weight=0.5,
    calculator=calculate_operation_risk
)

# Initialize risk assessment
risk_assessment = RiskAssessment()
risk_assessment.add_risk_factor(memory_risk)
risk_assessment.add_risk_factor(cpu_risk)
risk_assessment.add_risk_factor(operation_risk)

# Assess risk for a specific operation
operation_data = {
    'memory_usage': 750000000,  # 750MB
    'memory_limit': 1000000000,  # 1GB
    'cpu_usage': 0.8,           # 80%
    'operation_type': 'write'
}

risk_result = await risk_assessment.assess_risk(operation_data)

print(f"Overall Risk Score: {risk_result.overall_score:.3f}")
print(f"Risk Level: {risk_result.risk_level}")
print(f"Risk Factors:")
for factor_name, factor_score in risk_result.factor_scores.items():
    print(f"  - {factor_name}: {factor_score:.3f}")

# Get risk mitigation recommendations
if risk_result.overall_score > 0.7:
    recommendations = await risk_assessment.get_mitigation_recommendations(risk_result)
    print("🚨 High risk detected. Recommendations:")
    for rec in recommendations:
        print(f"  - {rec.action}: {rec.description}")
        print(f"    Expected risk reduction: {rec.risk_reduction:.2%}")

🔄 Rollback System

The rollback system provides safe reversion capabilities through automated checkpoint creation and recovery procedures.

Checkpoint Architecture

graph TB
    subgraph "Rollback System Architecture"
        subgraph "Checkpoint Creation"
            AUTO_CHECKPOINT[Automatic Checkpoints]
            MANUAL_CHECKPOINT[Manual Checkpoints]
            SCHEDULED_CHECKPOINT[Scheduled Checkpoints]
            EVENT_CHECKPOINT[Event-Triggered Checkpoints]
        end
        
        subgraph "State Preservation"
            MEMORY_STATE[Memory State]
            CONFIG_STATE[Configuration State]
            MODEL_STATE[Model State]
            METADATA_STATE[Metadata State]
        end
        
        subgraph "Recovery Procedures"
            PARTIAL_ROLLBACK[Partial Rollback]
            FULL_ROLLBACK[Full Rollback]
            SELECTIVE_ROLLBACK[Selective Rollback]
            EMERGENCY_ROLLBACK[Emergency Rollback]
        end
        
        subgraph "Verification"
            INTEGRITY_CHECK[Integrity Verification]
            CONSISTENCY_CHECK[Consistency Verification]
            PERFORMANCE_CHECK[Performance Verification]
            SAFETY_CHECK[Safety Verification]
        end
        
        AUTO_CHECKPOINT --> MEMORY_STATE
        MANUAL_CHECKPOINT --> CONFIG_STATE
        SCHEDULED_CHECKPOINT --> MODEL_STATE
        EVENT_CHECKPOINT --> METADATA_STATE
        
        MEMORY_STATE --> PARTIAL_ROLLBACK
        CONFIG_STATE --> FULL_ROLLBACK
        MODEL_STATE --> SELECTIVE_ROLLBACK
        METADATA_STATE --> EMERGENCY_ROLLBACK
        
        PARTIAL_ROLLBACK --> INTEGRITY_CHECK
        FULL_ROLLBACK --> CONSISTENCY_CHECK
        SELECTIVE_ROLLBACK --> PERFORMANCE_CHECK
        EMERGENCY_ROLLBACK --> SAFETY_CHECK
    end
    
    style AUTO_CHECKPOINT fill:#e8f5e8
    style MEMORY_STATE fill:#fff3e0
    style PARTIAL_ROLLBACK fill:#e1f5fe
    style INTEGRITY_CHECK fill:#fce4ec
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Checkpoint Management

from safla.core.safety_validation import CheckpointManager, CheckpointType

# Initialize checkpoint manager
checkpoint_manager = CheckpointManager(
    storage_path="./checkpoints",
    max_checkpoints=50,
    compression_enabled=True,
    encryption_enabled=True
)

# Create manual checkpoint
checkpoint_id = await checkpoint_manager.create_checkpoint(
    name="before_major_update",
    description="Checkpoint before implementing new memory algorithm",
    checkpoint_type=CheckpointType.MANUAL,
    include_components=[
        "memory_system",
        "meta_cognitive_engine",
        "safety_framework"
    ]
)

print(f"✅ Checkpoint created: {checkpoint_id}")

# Configure automatic checkpoints
await checkpoint_manager.configure_auto_checkpoints(
    interval=timedelta(hours=6),  # Every 6 hours
    triggers=[
        "before_system_modification",
        "before_model_update",
        "on_error_threshold"
    ],
    retention_policy={
        "daily_checkpoints": 7,    # Keep 7 daily checkpoints
        "weekly_checkpoints": 4,   # Keep 4 weekly checkpoints
        "monthly_checkpoints": 12  # Keep 12 monthly checkpoints
    }
)

# List available checkpoints
checkpoints = await checkpoint_manager.list_checkpoints(
    limit=10,
    sort_by="creation_time",
    filter_by={"checkpoint_type": CheckpointType.AUTOMATIC}
)

for checkpoint in checkpoints:
    print(f"📁 {checkpoint.name} ({checkpoint.creation_time})")
    print(f"   Size: {checkpoint.size_mb:.1f} MB")
    print(f"   Components: {', '.join(checkpoint.components)}")

Rollback Operations

# Perform rollback to specific checkpoint
rollback_result = await checkpoint_manager.rollback_to_checkpoint(
    checkpoint_id=checkpoint_id,
    components=["memory_system"],  # Selective rollback
    verify_integrity=True,
    create_pre_rollback_checkpoint=True
)

if rollback_result.success:
    print("✅ Rollback completed successfully")
    print(f"Rollback duration: {rollback_result.duration:.2f} seconds")
    print(f"Components restored: {', '.join(rollback_result.restored_components)}")
else:
    print("❌ Rollback failed")
    print(f"Error: {rollback_result.error_message}")
    print(f"Failed components: {', '.join(rollback_result.failed_components)}")

# Emergency rollback (fastest possible recovery)
emergency_result = await checkpoint_manager.emergency_rollback(
    target_state="last_known_good",
    timeout=30.0  # Maximum 30 seconds
)

# Verify system state after rollback
verification_result = await safety_framework.verify_system_integrity()
if verification_result.is_healthy:
    print("✅ System integrity verified after rollback")
else:
    print("⚠️ System integrity issues detected:")
    for issue in verification_result.issues:
        print(f"  - {issue.component}: {issue.description}")

🚨 Emergency Stop System

The emergency stop system provides immediate system shutdown capabilities for critical safety situations.

Emergency Stop Implementation

from safla.core.safety_validation import EmergencyStopSystem, StopReason

# Initialize emergency stop system
emergency_stop = EmergencyStopSystem(
    response_time_ms=100,  # 100ms maximum response time
    graceful_shutdown_timeout=30.0,  # 30 seconds for graceful shutdown
    force_shutdown_timeout=5.0  # 5 seconds for forced shutdown
)

# Register emergency stop triggers
emergency_stop.register_trigger(
    name="memory_overflow",
    condition=lambda state: state.get('memory_usage', 0) > 0.95,
    priority=1  # Highest priority
)

emergency_stop.register_trigger(
    name="security_breach",
    condition=lambda state: state.get('security_alert', False),
    priority=1
)

emergency_stop.register_trigger(
    name="constraint_violation",
    condition=lambda state: state.get('hard_constraint_violated', False),
    priority=2
)

# Manual emergency stop
await emergency_stop.trigger_emergency_stop(
    reason=StopReason.MANUAL,
    message="Manual emergency stop triggered by administrator",
    immediate=True
)

# Check emergency stop status
status = await emergency_stop.get_status()
if status.is_stopped:
    print("🚨 System in emergency stop state")
    print(f"Reason: {status.stop_reason}")
    print(f"Stopped at: {status.stop_time}")
    print(f"Can resume: {status.can_resume}")

# Resume from emergency stop (if safe)
if status.can_resume:
    resume_result = await emergency_stop.resume_system(
        verify_safety=True,
        run_diagnostics=True
    )
    
    if resume_result.success:
        print("✅ System resumed successfully")
    else:
        print(f"❌ Resume failed: {resume_result.error_message}")

📊 Safety Monitoring

Real-time safety monitoring provides continuous oversight of system health and safety metrics.

Monitoring Dashboard

from safla.core.safety_validation import SafetyMonitor

# Initialize safety monitor
safety_monitor = SafetyMonitor(
    monitoring_interval=1.0,  # Check every second
    alert_thresholds={
        "memory_usage": 0.8,
        "cpu_usage": 0.8,
        "error_rate": 0.05,
        "response_time": 5.0
    }
)

# Start monitoring
await safety_monitor.start_monitoring()

# Get real-time safety metrics
metrics = await safety_monitor.get_current_metrics()
print(f"🔍 Safety Metrics:")
print(f"  Memory Usage: {metrics['memory_usage']:.1%}")
print(f"  CPU Usage: {metrics['cpu_usage']:.1%}")
print(f"  Error Rate: {metrics['error_rate']:.2%}")
print(f"  Response Time: {metrics['response_time']:.2f}s")
print(f"  Safety Score: {metrics['safety_score']:.3f}")

# Get safety alerts
alerts = await safety_monitor.get_active_alerts()
if alerts:
    print("⚠️ Active Safety Alerts:")
    for alert in alerts:
        print(f"  - {alert.severity}: {alert.message}")
        print(f"    Component: {alert.component}")
        print(f"    Time: {alert.timestamp}")
else:
    print("✅ No active safety alerts")

# Configure alert handlers
async def handle_memory_alert(alert):
    """Handle memory usage alerts."""
    if alert.severity == "CRITICAL":
        await emergency_stop.trigger_emergency_stop(
            reason=StopReason.MEMORY_OVERFLOW,
            message=f"Critical memory usage: {alert.value:.1%}"
        )
    elif alert.severity == "WARNING":
        await memory_system.trigger_cleanup()

safety_monitor.register_alert_handler("memory_usage", handle_memory_alert)

🧪 Safety Testing

Comprehensive safety testing ensures the reliability of safety mechanisms.

Safety Test Suite

import pytest
from safla.core.safety_validation import SafetyTestSuite

class TestSafetyFramework:
    """Comprehensive safety framework tests."""
    
    @pytest.mark.asyncio
    async def test_constraint_enforcement(self):
        """Test that safety constraints are properly enforced."""
        # Test hard constraint violation
        violation_data = {"memory_usage": 1200000000}  # Exceeds 1GB limit
        
        result = await safety_framework.validate_system_modification(violation_data)
        assert not result.is_approved, "Hard constraint violation should be rejected"
        assert "memory_limit" in result.violated_constraints
    
    @pytest.mark.asyncio
    async def test_emergency_stop_response_time(self):
        """Test emergency stop response time."""
        start_time = time.time()
        
        await emergency_stop.trigger_emergency_stop(
            reason=StopReason.MANUAL,
            immediate=True
        )
        
        stop_time = time.time()
        response_time = (stop_time - start_time) * 1000  # Convert to milliseconds
        
        assert response_time < 100, f"Emergency stop took {response_time:.1f}ms (should be < 100ms)"
    
    @pytest.mark.asyncio
    async def test_rollback_integrity(self):
        """Test rollback system integrity."""
        # Create checkpoint
        checkpoint_id = await checkpoint_manager.create_checkpoint(
            name="test_checkpoint",
            checkpoint_type=CheckpointType.MANUAL
        )
        
        # Modify system state
        await memory_system.store_vector_memory(
            content="Test modification",
            embedding=[0.1] * 512
        )
        
        # Rollback to checkpoint
        rollback_result = await checkpoint_manager.rollback_to_checkpoint(
            checkpoint_id=checkpoint_id,
            verify_integrity=True
        )
        
        assert rollback_result.success, "Rollback should succeed"
        assert rollback_result.integrity_verified, "Integrity should be verified"
    
    @pytest.mark.asyncio
    async def test_risk_assessment_accuracy(self):
        """Test risk assessment accuracy."""
        # Test low-risk scenario
        low_risk_data = {
            "memory_usage": 100000000,  # 100MB
            "cpu_usage": 0.3,
            "operation_type": "read"
        }
        
        low_risk_result = await risk_assessment.assess_risk(low_risk_data)
        assert low_risk_result.overall_score < 0.3, "Low-risk scenario should have low score"
        
        # Test high-risk scenario
        high_risk_data = {
            "memory_usage": 950000000,  # 950MB
            "cpu_usage": 0.95,
            "operation_type": "system_modify"
        }
        
        high_risk_result = await risk_assessment.assess_risk(high_risk_data)
        assert high_risk_result.overall_score > 0.7, "High-risk scenario should have high score"

# Run safety tests
if __name__ == "__main__":
    pytest.main([__file__, "-v"])

📋 Safety Configuration

Configuration Templates

# safety_config.yaml
safety_framework:
  constraints:
    hard_constraints:
      - name: "memory_limit"
        threshold: 1000000000  # 1GB
        action: "emergency_stop"
      - name: "cpu_limit"
        threshold: 0.9  # 90%
        action: "throttle"
    
    soft_constraints:
      - name: "response_time"
        threshold: 5.0  # 5 seconds
        action: "warning"
      - name: "error_rate"
        threshold: 0.05  # 5%
        action: "alert"
  
  validation:
    timeout: 30.0
    retry_count: 3
    parallel_execution: true
    fail_fast: false
  
  risk_assessment:
    factors:
      - name: "memory_risk"
        weight: 0.3
      - name: "cpu_risk"
        weight: 0.2
      - name: "operation_risk"
        weight: 0.5
    
    thresholds:
      low: 0.3
      medium: 0.6
      high: 0.8
      critical: 0.9
  
  monitoring:
    interval: 1.0  # seconds
    alert_thresholds:
      memory_usage: 0.8
      cpu_usage: 0.8
      error_rate: 0.05
      response_time: 5.0
  
  emergency_stop:
    response_time_ms: 100
    graceful_timeout: 30.0
    force_timeout: 5.0
  
  checkpoints:
    auto_interval: 21600  # 6 hours
    max_checkpoints: 50
    compression: true
    encryption: true
    retention:
      daily: 7
      weekly: 4
      monthly: 12

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