# Integration Layer - Business Requirements

**Document Version**: 1.0
**Date**: January 2025
**Status**: Business Requirements Specification
**Module**: Integration Layer (`pkg/integration/`)

---

## 1. Purpose & Scope

### 1.1 Business Purpose
The Integration Layer provides comprehensive connectivity and communication capabilities between Kubernaut and external systems, enabling seamless webhook processing, intelligent alert handling, and multi-channel notification delivery to support effective remediation workflows.

### 1.2 Scope
- **Webhook Handler**: HTTP webhook processing for alert reception
- **Remediation Processor**: Intelligent alert processing and filtering
- **Notification System**: Multi-channel notification delivery and management

---

## 2. Webhook Handler

### 2.1 Business Capabilities

#### 2.1.1 HTTP Webhook Processing
- **BR-WH-001**: MUST receive HTTP webhook requests from Prometheus Alertmanager
- **BR-WH-002**: MUST support multiple webhook endpoints with different configurations
- **BR-WH-003**: MUST validate webhook payloads for completeness and format
- **BR-WH-004**: MUST implement webhook authentication and authorization
- **BR-WH-005**: MUST support webhook signature verification for security

#### 2.1.2 Request Handling
- **BR-WH-006**: MUST handle concurrent webhook requests with high throughput
- **BR-WH-007**: MUST implement request queuing for load management
- **BR-WH-008**: MUST provide request deduplication for identical alerts
- **BR-WH-009**: MUST support request timeout handling and graceful failures
- **BR-WH-010**: MUST maintain request processing order for related alerts

#### 2.1.3 Response Management
- **BR-WH-011**: MUST provide appropriate HTTP response codes for all request types
- **BR-WH-012**: MUST return detailed error messages for debugging
- **BR-WH-013**: MUST implement response compression for large payloads
- **BR-WH-014**: MUST support asynchronous response handling for long operations
- **BR-WH-015**: MUST provide webhook processing status and acknowledgments
- **BR-WH-026**: MUST integrate with Remediation Processor for immediate tracking initiation
  - Forward validated alerts to Remediation Processor within 50ms of receipt
  - Include gateway receipt timestamp and correlation metadata
  - Ensure Remediation Processor tracking record creation (BR-SP-021) before HTTP response
  - Maintain gateway processing logs for audit correlation with processor tracking

#### 2.1.4 Configuration & Flexibility
- **BR-WH-016**: MUST support configurable webhook paths and routing
- **BR-WH-017**: MUST implement custom header processing and forwarding
- **BR-WH-018**: MUST support multiple content types (JSON, XML, form data)
- **BR-WH-019**: MUST provide webhook configuration validation and testing
- **BR-WH-020**: MUST support webhook versioning and backward compatibility

### 2.2 Security & Validation
- **BR-WH-021**: MUST implement HTTPS/TLS encryption for all webhook traffic
- **BR-WH-022**: MUST validate request source IP addresses and hostnames
- **BR-WH-023**: MUST implement rate limiting to prevent abuse
- **BR-WH-024**: MUST sanitize webhook payloads to prevent injection attacks
- **BR-WH-025**: MUST maintain webhook access logs for security monitoring

---

## 3. Remediation Processor

### 3.1 Business Capabilities

#### 3.1.1 Alert Processing Pipeline
- **BR-SP-001**: MUST process incoming alerts through configurable filtering rules
- **BR-SP-002**: MUST enrich alerts with contextual information from multiple sources
- **BR-SP-003**: MUST normalize alert formats from different monitoring systems
- **BR-SP-004**: MUST implement alert correlation and grouping logic
- **BR-SP-005**: MUST support alert transformation and field mapping

#### 3.1.2 Intelligent Filtering
- **BR-SP-006**: MUST implement rule-based filtering with complex conditions
- **BR-SP-007**: MUST support AI-powered alert relevance scoring
- **BR-SP-008**: MUST provide alert suppression during maintenance windows
- **BR-SP-009**: MUST implement alert escalation based on severity and duration
- **BR-SP-010**: MUST support custom filtering logic through plugins

#### 3.1.3 Context Enrichment
- **BR-SP-011**: MUST enrich alerts with Kubernetes cluster context
- **BR-SP-012**: MUST add historical action context to alerts
- **BR-SP-013**: MUST integrate with monitoring systems for additional metrics
- **BR-SP-014**: MUST provide business context through external API integration
- **BR-SP-015**: MUST support custom context providers and data sources

#### 3.1.4 Environment Classification & Namespace Management
- **BR-SP-021**: MUST classify Kubernetes namespaces by business environment type (production, staging, development, testing)
- **BR-SP-022**: MUST define production namespace identification through configurable business-driven patterns
- **BR-SP-023**: MUST implement environment-based alert filtering with business-defined priority levels
- **BR-SP-024**: MUST validate namespace classification against organizational naming standards
- **BR-SP-025**: MUST support multi-tenant namespace isolation with business unit mapping
- **BR-SP-026**: MUST provide environment-specific alert routing based on business criticality
- **BR-SP-027**: MUST implement namespace-based resource allocation and limits aligned with business priorities
- **BR-SP-028**: MUST support environment promotion workflows with business approval gates
- **BR-SP-029**: MUST track namespace lifecycle events for business compliance and auditing
- **BR-SP-030**: MUST integrate with organizational directory services for namespace ownership mapping

#### 3.1.5 Business Priority & Criticality Management
- **BR-SP-031**: MUST define business criticality levels for different namespace types and workloads
- **BR-SP-032**: MUST implement Service Level Objective (SLO) mapping based on business environment classification
- **BR-SP-033**: MUST support business hours and timezone-aware alert processing priorities
- **BR-SP-034**: MUST provide cost center and budget allocation tracking per namespace environment
- **BR-SP-035**: MUST implement compliance and regulatory requirement mapping per environment type

#### 3.1.6 Decision Making Integration
- **BR-SP-016**: MUST integrate with AI components for intelligent alert analysis
- **BR-SP-017**: MUST coordinate with workflow engine for complex remediation
- **BR-SP-018**: MUST utilize historical data for decision optimization
- **BR-SP-019**: MUST support human-in-the-loop decision making workflows
- **BR-SP-020**: MUST provide decision audit trails and explainability

### 3.2 Alert Lifecycle Management
- **BR-SP-021**: MUST track alert states throughout processing lifecycle
  - Generate unique alert tracking ID immediately upon receipt from Alert Gateway
  - Initialize alert lifecycle state (received, processing, analyzed, remediated, closed)
  - Capture initial alert metadata (timestamp, source, severity, content, correlation ID)
  - **Enhanced for Post-Mortem**: Capture decision rationale and confidence scores at each stage
  - **Enhanced for Post-Mortem**: Record context data used in AI analysis and decision making
  - **Enhanced for Post-Mortem**: Track performance metrics during alert processing (latency, resource usage)
  - **Enhanced for Post-Mortem**: Log error conditions, failure points, and recovery actions
  - **Enhanced for Post-Mortem**: Record human interventions and manual override decisions
  - **Enhanced for Post-Mortem**: Capture business impact metrics and affected resources
  - **Enhanced for Post-Mortem**: Track resolution effectiveness and outcome validation
  - Enable end-to-end traceability correlation with action history (BR-HIST-002)
  - Support audit trail requirements for compliance and debugging
  - Create tracking record within 100ms of alert reception from gateway
  - Maintain correlation between gateway receipt acknowledgment and processor tracking
- **BR-SP-022**: MUST implement alert acknowledgment and closure mechanisms
- **BR-SP-023**: MUST support alert snoozing and temporary suppression
- **BR-SP-024**: MUST provide alert aging and automatic cleanup
- **BR-SP-025**: MUST maintain alert processing metrics and analytics

---

## 4. Notification System

### 4.1 Business Capabilities

#### 4.1.1 Multi-Channel Notification
- **BR-NOT-001**: MUST support email notifications with rich formatting
- **BR-NOT-002**: MUST integrate with Slack for team collaboration
- **BR-NOT-003**: MUST provide console/stdout notifications for development
- **BR-NOT-004**: MUST support SMS notifications for critical alerts
- **BR-NOT-005**: MUST integrate with Microsoft Teams and other chat platforms

#### 4.1.2 Notification Builder
- **BR-NOT-006**: MUST create structured notifications with consistent formatting
- **BR-NOT-007**: MUST support notification templates with variable substitution
- **BR-NOT-008**: MUST implement notification personalization based on recipients
- **BR-NOT-009**: MUST provide rich media support (attachments, images, charts)
- **BR-NOT-010**: MUST support multiple notification formats per channel

#### 4.1.3 Delivery Management
- **BR-NOT-011**: MUST implement reliable delivery with retry mechanisms
- **BR-NOT-012**: MUST support delivery confirmation and read receipts
- **BR-NOT-013**: MUST provide delivery status tracking and reporting
- **BR-NOT-014**: MUST implement delivery prioritization and scheduling
- **BR-NOT-015**: MUST support bulk notification processing

#### 4.1.4 Routing & Escalation
- **BR-NOT-016**: MUST support intelligent routing based on alert characteristics
  - **Enhanced**: Include alert tracking ID in all notification messages and metadata
  - **Enhanced**: Correlate notification delivery status with alert tracking for audit trails
  - **Enhanced**: Support notification effectiveness tracking per alert correlation
  - **Enhanced**: Maintain notification history linked to alert tracking IDs
- **BR-NOT-017**: MUST implement escalation paths for unacknowledged notifications
- **BR-NOT-018**: MUST provide on-call schedule integration
- **BR-NOT-019**: MUST support notification suppression during off-hours
- **BR-NOT-020**: MUST implement notification load balancing across channels

#### 4.1.5 Escalation Context & Content
- **BR-NOT-026**: MUST provide comprehensive alert context in escalation notifications
  - **Alert Summary**: Original alert name, severity, timestamp, and fingerprint
  - **Alert Details**: Full alert labels, annotations, and triggering metrics
  - **Alert Source**: Prometheus/AlertManager instance, alert rule, and thresholds
- **BR-NOT-027**: MUST include impacted resources in escalation notifications
  - **Resource Identification**: Kubernetes resource kind, name, namespace
  - **Resource State**: Current status, age, and recent events
  - **Resource Dependencies**: Related resources (Services, ConfigMaps, Secrets)
  - **Resource Ownership**: Labels, annotations, and business context
- **BR-NOT-028**: MUST provide AI-generated root cause analysis in escalation notifications
  - **Analysis Summary**: One-line root cause summary (max 200 chars)
  - **Detailed Analysis**: Multi-paragraph explanation with evidence
  - **Analysis Confidence**: AI confidence score (0.0-1.0) with explanation
  - **Analysis Methodology**: Which AI models/tools were used
  - **Supporting Evidence**: Logs, metrics, events that led to conclusion
- **BR-NOT-029**: MUST include analysis justification in escalation notifications
  - **Why This Root Cause**: Explanation of why AI selected this root cause
  - **Alternative Hypotheses**: Other possible root causes considered
    - **Maximum**: 3 alternatives (highest confidence only)
    - **Minimum Confidence**: 80% threshold for inclusion (high-confidence alternatives only)
    - **Sort Order**: Descending by confidence
    - **Rejection Reason**: Why AI rejected each alternative (if available)
  - **Confidence Factors**: What increased/decreased confidence in analysis
  - **Data Quality**: Availability and reliability of data used for analysis
- **BR-NOT-030**: MUST provide recommended remediations sorted by multi-factor ranking
  - **Remediation List**: Minimum 1, maximum 5 recommended actions
  - **Multi-Factor Ranking**: Sorted by priority order
    1. **Primary**: AI confidence (%) - highest first
    2. **Secondary**: Time to resolution - lowest first (tie-breaker)
    3. **Tertiary**: Risk level (low/medium/high) - lowest first (tie-breaker)
    4. **Quaternary**: Resource cost - lowest first (tie-breaker)
  - **Combined Score**: Overall recommendation score (0.0-1.0)
  - **Action Description**: Clear, actionable description of each remediation
  - **Execution Details**: How the action would be performed (manual vs. automated)
- **BR-NOT-031**: MUST include pros/cons for each recommended remediation
  - **Pros (Benefits)**:
    - Expected positive outcomes
    - Time to resolution estimate
    - Risk mitigation achieved
  - **Cons (Risks)**:
    - Potential negative impacts
    - Resources required
    - Complexity level (low/medium/high)
  - **Trade-offs**: What is gained vs. what is sacrificed
- **BR-NOT-032**: MUST provide actionable next steps in escalation notifications
  - **Manual Remediation**: Step-by-step instructions if operator chooses manual approach
  - **GitOps PR Link**: Direct link to Git PR if GitOps workflow available
  - **Approval Action**: How to approve recommended remediation (if auto-approval available)
  - **Escalation History**: Previous escalations for this alert
    - **Recent Events**: Last 5 events with full details
    - **Historical Summary**: Older events as summary statistics (e.g., "91 additional events in past 48h")
    - **Full History Link**: Link to complete history in web UI
  - **Monitoring Links**: Direct links to dashboards, logs, metrics
- **BR-NOT-033**: MUST format escalation notifications for quick decision-making
  - **Executive Summary**: 3-5 sentence summary at top (TL;DR)
  - **Visual Priority Indicators**: Color coding, icons, or formatting for severity
  - **Action Buttons**: Direct action links/buttons for common responses
  - **Collapsible Sections**: Detailed analysis in expandable sections
  - **Mobile-Friendly**: Readable on mobile devices for on-call engineers

#### 4.1.6 Data Safety & Security
- **BR-NOT-034**: MUST sanitize sensitive data before sending escalation notifications
  - **Secret Redaction**: Redact passwords, API keys, tokens, certificates
  - **PII Masking**: Mask personally identifiable information (email, phone, names)
  - **Log Sanitization**: Filter log snippets for sensitive patterns
  - **Secret Exclusion**: Exclude Secret resource contents (show name only)
  - **Connection String Redaction**: Redact database connection strings and credentials
  - **Pattern Detection**: Use regex patterns for common secrets (API keys, passwords, tokens)
  - **Audit Trail**: Log all sanitization events for security audit
  - **Pre-Channel Filter**: Apply sanitization BEFORE sending to any notification channel

#### 4.1.7 Data Freshness & Accuracy
- **BR-NOT-035**: MUST include data freshness indicators in escalation notifications
  - **Timestamp**: When data was gathered (ISO 8601 format)
  - **Age Indicator**: Human-readable freshness (e.g., "5 seconds ago", "2 minutes ago")
  - **Staleness Warning**: Warning if data is >30 seconds old
  - **Verification Action**: "Verify Current State" button for real-time check
  - **Dashboard Link**: Direct link to live monitoring dashboard

#### 4.1.8 Channel-Specific Formatting
- **BR-NOT-036**: MUST provide channel-specific formatting adapters for notifications
  - **Email Adapter**: Full HTML with embedded styles, links only (no interactive buttons)
  - **Slack Adapter**: Markdown + Block Kit with interactive buttons, support threading for updates
  - **Microsoft Teams Adapter**: Adaptive Cards with action buttons and rich formatting
  - **SMS Adapter**: Ultra-short summary + web link (140 characters max)
  - **Webhook Adapter**: Full JSON payload (no formatting, raw data)
  - **Template Structure**: Base data structure + channel-specific rendering
  - **Feature Matrix**: Document channel capabilities (buttons, collapsible sections, rich media)
  - **Payload Size Limits**: Enforce channel-specific size limits (Email: 1MB, Slack: 40KB, Teams: 28KB)

#### 4.1.9 External Service Action Links
- **BR-NOT-037**: MUST provide action links to external services for all recommended actions
  - **Link Generation**: Generate direct links to external services (GitHub, GitLab, Grafana, Kubernetes Dashboard, Prometheus)
  - **Authentication Delegation**: External services enforce their own authentication and authorization
  - **Action Transparency**: Show all recommended actions (no pre-filtering by Kubernaut)
  - **Service Responsibility**: Target service (GitHub, Grafana, K8s) enforces RBAC/permissions when user clicks link
  - **Decoupled Architecture**: Kubernaut does not query or cache external service permissions
  - **User Discovery**: Users see all available actions and can request access if needed

### 4.2 Configuration & Management
- **BR-NOT-021**: MUST support configurable notification preferences per user/team
- **BR-NOT-022**: MUST implement notification subscription management
- **BR-NOT-023**: MUST provide notification testing and validation capabilities
- **BR-NOT-024**: MUST support notification channel health monitoring
- **BR-NOT-025**: MUST implement notification analytics and effectiveness tracking

---

## 5. Performance Requirements

### 5.1 Webhook Performance
- **BR-PERF-001**: Webhook requests MUST be processed within 2 seconds
- **BR-PERF-002**: MUST handle 1000 concurrent webhook requests
- **BR-PERF-003**: MUST support 10,000 webhooks per minute throughput
- **BR-PERF-004**: Webhook acknowledgment MUST be sent within 500ms
- **BR-PERF-005**: Request queuing MUST handle 50,000 pending requests

### 5.2 Alert Processing Performance
- **BR-PERF-006**: Alert processing MUST complete within 5 seconds for standard alerts
- **BR-PERF-007**: Alert filtering MUST process 5000 alerts per minute
- **BR-PERF-008**: Context enrichment MUST complete within 3 seconds
- **BR-PERF-009**: MUST support 100 concurrent alert processing workflows
- **BR-PERF-010**: Alert correlation MUST complete within 10 seconds

### 5.3 Environment Classification Performance
- **BR-PERF-021**: Namespace classification MUST complete within 100ms per alert
- **BR-PERF-022**: Environment pattern matching MUST support 10,000 namespace evaluations per minute
- **BR-PERF-023**: Business priority lookup MUST complete within 50ms
- **BR-PERF-024**: Environment-based routing decisions MUST complete within 200ms
- **BR-PERF-025**: Namespace validation against organizational standards MUST complete within 500ms

### 5.4 Notification Performance
- **BR-PERF-026**: Notifications MUST be sent within 30 seconds of trigger
- **BR-PERF-027**: MUST support 1000 notifications per minute delivery
- **BR-PERF-028**: Email notifications MUST be delivered within 60 seconds
- **BR-PERF-029**: Slack notifications MUST be delivered within 10 seconds
- **BR-PERF-030**: MUST handle 10,000 notification recipients efficiently

### 5.5 Resource Efficiency
- **BR-PERF-031**: CPU utilization SHOULD NOT exceed 60% under normal load
- **BR-PERF-032**: Memory usage SHOULD remain under 1GB per integration service
- **BR-PERF-033**: MUST implement connection pooling for external integrations
- **BR-PERF-034**: MUST optimize network bandwidth usage for notifications
- **BR-PERF-035**: MUST implement efficient message queuing and processing

---

## 6. Reliability & Availability Requirements

### 6.1 High Availability
- **BR-REL-001**: Integration services MUST maintain 99.9% uptime
- **BR-REL-002**: MUST support active-passive failover for webhook processing
- **BR-REL-003**: MUST implement graceful degradation during external service outages
- **BR-REL-004**: MUST recover automatically from transient failures
- **BR-REL-005**: MUST maintain service continuity during planned maintenance

### 6.2 Fault Tolerance
- **BR-REL-006**: MUST handle external API failures gracefully
- **BR-REL-007**: MUST implement circuit breaker patterns for external services
- **BR-REL-008**: MUST continue core operations during notification service outages
- **BR-REL-009**: MUST support partial functionality during integration failures
- **BR-REL-010**: MUST provide fallback mechanisms for critical notifications

### 6.3 Data Integrity
- **BR-REL-011**: MUST ensure webhook payload integrity during processing
- **BR-REL-012**: MUST maintain alert processing order and consistency
- **BR-REL-013**: MUST prevent duplicate notifications for the same event
- **BR-REL-014**: MUST implement idempotent operations for retry scenarios
- **BR-REL-015**: MUST maintain notification audit trails with integrity

---

## 7. Security Requirements

### 7.1 Communication Security
- **BR-SEC-001**: MUST use HTTPS/TLS for all external communications
- **BR-SEC-002**: MUST validate SSL certificates for external integrations
- **BR-SEC-003**: MUST implement mutual TLS authentication where supported
- **BR-SEC-004**: MUST encrypt sensitive data in notification payloads
- **BR-SEC-005**: MUST support API key rotation for external services

### 7.2 Authentication & Authorization
- **BR-SEC-006**: MUST authenticate webhook sources using signatures or tokens
- **BR-SEC-007**: MUST implement authorization for notification recipients
- **BR-SEC-008**: MUST support RBAC for integration configuration
- **BR-SEC-009**: MUST validate user permissions for notification subscriptions
- **BR-SEC-010**: MUST implement session management for interactive operations

### 7.3 Data Protection
- **BR-SEC-011**: MUST sanitize alert data before external transmission
- **BR-SEC-012**: MUST implement data masking for sensitive information
- **BR-SEC-013**: MUST comply with data protection regulations in notifications
- **BR-SEC-014**: MUST provide secure storage for integration credentials
- **BR-SEC-015**: MUST maintain security audit logs for compliance

---

## 8. Integration Points & Standards

### 8.1 External System Integration
- **BR-INT-001**: MUST integrate with Prometheus Alertmanager webhook format
- **BR-INT-002**: MUST support Grafana alert webhook integration
- **BR-INT-003**: MUST integrate with PagerDuty for incident management
- **BR-INT-004**: MUST support ServiceNow for ticket creation and tracking
- **BR-INT-005**: MUST integrate with Jira for issue management

### 8.2 Protocol & Standards Support
- **BR-INT-006**: MUST support OpenAPI/Swagger specifications for integrations
- **BR-INT-007**: MUST implement CloudEvents standard for event processing
- **BR-INT-008**: MUST support webhook security standards (HMAC, JWT)
- **BR-INT-009**: MUST comply with SMTP/IMAP standards for email integration
- **BR-INT-010**: MUST support OAuth 2.0 for secure API authentication

### 8.3 Data Format Support
- **BR-INT-011**: MUST support JSON, XML, and YAML data formats
- **BR-INT-012**: MUST implement data transformation between formats
- **BR-INT-013**: MUST support custom field mapping and transformation
- **BR-INT-014**: MUST validate data against schemas and specifications
- **BR-INT-015**: MUST support versioned API integration with backward compatibility

---

## 9. Monitoring & Observability

### 9.1 Integration Monitoring
- **BR-MON-001**: MUST track webhook reception rates and success metrics
- **BR-MON-002**: MUST monitor alert processing latency and throughput
- **BR-MON-003**: MUST track notification delivery rates and failures
- **BR-MON-004**: MUST monitor external integration health and availability
- **BR-MON-005**: MUST provide real-time integration status dashboards

### 9.2 Performance Analytics
- **BR-MON-006**: MUST analyze webhook processing patterns and optimization opportunities
- **BR-MON-007**: MUST track alert filtering effectiveness and accuracy
- **BR-MON-008**: MUST monitor notification engagement and response rates
- **BR-MON-009**: MUST provide integration performance benchmarking
- **BR-MON-010**: MUST identify bottlenecks and capacity planning needs

### 9.3 Business Metrics
- **BR-MON-011**: MUST track integration success rates and business impact
- **BR-MON-012**: MUST measure time-to-notification for critical alerts
- **BR-MON-013**: MUST monitor user satisfaction with notification delivery
- **BR-MON-014**: MUST track cost optimization opportunities for integrations
- **BR-MON-015**: MUST provide ROI metrics for integration investments

---

## 10. Error Handling & Recovery

### 10.1 Error Classification
- **BR-ERR-001**: MUST classify integration errors by type and severity
- **BR-ERR-002**: MUST distinguish between transient and permanent failures
- **BR-ERR-003**: MUST categorize errors by integration point and impact
- **BR-ERR-004**: MUST provide detailed error context for troubleshooting
- **BR-ERR-005**: MUST implement error correlation across related integrations

### 10.2 Recovery Strategies
- **BR-ERR-006**: MUST implement automatic retry with exponential backoff
- **BR-ERR-007**: MUST provide manual intervention capabilities for complex errors
- **BR-ERR-008**: MUST support graceful degradation during extended outages
- **BR-ERR-009**: MUST implement dead letter queues for failed notifications
- **BR-ERR-010**: MUST provide error recovery workflows with human approval

### 10.3 Notification Reliability
- **BR-ERR-011**: MUST ensure critical notifications are delivered despite failures
- **BR-ERR-012**: MUST implement notification channel fallback mechanisms
- **BR-ERR-013**: MUST provide notification retry with different channels
- **BR-ERR-014**: MUST maintain notification audit trails during error scenarios
- **BR-ERR-015**: MUST support manual notification resend capabilities

---

## 11. Configuration & Management

### 11.1 Dynamic Configuration
- **BR-CFG-001**: MUST support runtime configuration updates without restart
- **BR-CFG-002**: MUST validate configuration changes before applying
- **BR-CFG-003**: MUST provide configuration rollback capabilities
- **BR-CFG-004**: MUST support environment-specific configuration profiles
- **BR-CFG-005**: MUST implement configuration change approval workflows

### 11.2 Integration Management
- **BR-CFG-006**: MUST provide graphical interface for integration configuration
- **BR-CFG-007**: MUST support integration testing and validation tools
- **BR-CFG-008**: MUST implement integration health checks and diagnostics
- **BR-CFG-009**: MUST provide integration documentation and examples
- **BR-CFG-010**: MUST support integration versioning and lifecycle management

### 11.3 User Management
- **BR-CFG-011**: MUST support user subscription management for notifications
- **BR-CFG-012**: MUST implement user preference configuration and storage
- **BR-CFG-013**: MUST provide user notification history and analytics
- **BR-CFG-014**: MUST support team-based notification management
- **BR-CFG-015**: MUST implement user activity monitoring and reporting

---

## 12. Scalability & Growth

### 12.1 Horizontal Scaling
- **BR-SCALE-001**: MUST support horizontal scaling for webhook processing
- **BR-SCALE-002**: MUST implement load balancing across integration instances
- **BR-SCALE-003**: MUST support auto-scaling based on demand patterns
- **BR-SCALE-004**: MUST maintain session affinity for stateful integrations
- **BR-SCALE-005**: MUST provide seamless scaling without service disruption

### 12.2 Volume Handling
- **BR-SCALE-006**: MUST handle enterprise-scale webhook volumes (100K+ per hour)
- **BR-SCALE-007**: MUST process large alert batches efficiently
- **BR-SCALE-008**: MUST support massive notification distribution (1M+ recipients)
- **BR-SCALE-009**: MUST maintain performance with 10x growth in integrations
- **BR-SCALE-010**: MUST optimize resource usage for large-scale deployments

### 12.3 Global Distribution
- **BR-SCALE-011**: MUST support multi-region deployment for global organizations
- **BR-SCALE-012**: MUST implement region-aware notification routing
- **BR-SCALE-013**: MUST support cross-region failover and disaster recovery
- **BR-SCALE-014**: MUST optimize latency for global webhook processing
- **BR-SCALE-015**: MUST maintain consistency across distributed deployments

---

## 13. Testing & Quality Assurance

### 13.1 Integration Testing
- **BR-TEST-001**: MUST provide comprehensive webhook testing capabilities
- **BR-TEST-002**: MUST support notification delivery testing and validation
- **BR-TEST-003**: MUST implement integration health checks and monitoring
- **BR-TEST-004**: MUST provide load testing tools for scalability validation
- **BR-TEST-005**: MUST support end-to-end integration testing scenarios

### 13.2 Quality Metrics
- **BR-TEST-006**: MUST maintain >99% webhook processing accuracy
- **BR-TEST-007**: MUST achieve >95% notification delivery success rate
- **BR-TEST-008**: MUST validate integration compliance with specifications
- **BR-TEST-009**: MUST ensure consistent behavior across different environments
- **BR-TEST-010**: MUST provide quality assurance metrics and reporting

---

## 13. Quality Requirements

### 13.1 Environment Classification Accuracy
- **BR-QUAL-001**: Namespace environment classification MUST achieve >99% accuracy against organizational standards
- **BR-QUAL-002**: Production namespace identification MUST have zero false negatives (no production alerts missed)
- **BR-QUAL-003**: Environment pattern matching MUST support complex regex patterns with >95% match accuracy
- **BR-QUAL-004**: Business priority assignment MUST align with organizational SLA requirements with >98% accuracy
- **BR-QUAL-005**: Namespace validation MUST detect naming standard violations with >90% precision

### 13.2 Alert Processing Quality
- **BR-QUAL-006**: Alert filtering based on environment classification MUST achieve >95% precision and >90% recall
- **BR-QUAL-007**: Environment-based routing decisions MUST be consistent across identical alert scenarios
- **BR-QUAL-008**: Business criticality assessment MUST align with organizational incident response procedures
- **BR-QUAL-009**: Multi-tenant namespace isolation MUST prevent cross-environment alert leakage with 100% accuracy
- **BR-QUAL-010**: Environment promotion workflow validation MUST prevent unauthorized environment transitions

### 13.3 Configuration Quality
- **BR-QUAL-011**: Environment classification configuration MUST be validated against organizational directory services
- **BR-QUAL-012**: Namespace pattern definitions MUST be tested against historical namespace data with >95% coverage
- **BR-QUAL-013**: Business priority mappings MUST be auditable and traceable to business requirements
- **BR-QUAL-014**: Configuration changes MUST be validated in non-production environments before deployment
- **BR-QUAL-015**: Environment classification rules MUST support organizational restructuring with minimal reconfiguration

### 13.4 Compliance & Auditing Quality
- **BR-QUAL-016**: Environment classification decisions MUST be logged with complete audit trails
- **BR-QUAL-017**: Business priority assignments MUST be traceable to specific organizational policies
- **BR-QUAL-018**: Namespace lifecycle events MUST be recorded for compliance reporting with 100% completeness
- **BR-QUAL-019**: Environment-based access controls MUST align with organizational security policies
- **BR-QUAL-020**: Cost center and budget allocation tracking MUST provide accurate financial reporting

---

## 14. Advanced Circuit Breaker Metrics (V1 Enhancement)

### 14.1 Enhanced Circuit Breaker State Monitoring

#### **BR-GATEWAY-METRICS-001: Enhanced Circuit Breaker State Monitoring**
**Business Requirement**: The system MUST provide comprehensive circuit breaker metrics to enable proactive failure detection and operational intelligence for critical service dependencies.

**Functional Requirements**:
1. **Real-Time Metrics Collection** - MUST collect failure rates, success rates, and state transitions in real-time
2. **State Transition Tracking** - MUST track circuit breaker state changes (closed → open → half-open → closed)
3. **Performance Analytics** - MUST calculate rolling averages and trend analysis for failure patterns
4. **Threshold Management** - MUST support configurable thresholds for different service criticality levels

**Success Criteria**:
- 99.9% metrics collection accuracy with <1ms overhead
- Real-time state transition detection within 100ms
- Support for 1000+ concurrent circuit breaker instances
- 30-day historical metrics retention with 1-minute granularity

**Business Value**: Proactive failure detection reduces MTTR by 40-60% and prevents cascade failures

#### **BR-GATEWAY-METRICS-002: Intelligent Recovery Logic Enhancement**
**Business Requirement**: The system MUST implement intelligent recovery algorithms that adapt to service behavior patterns to optimize service restoration and minimize false positives.

**Functional Requirements**:
1. **Adaptive Recovery Timeouts** - MUST adjust recovery timeouts based on historical service behavior
2. **Half-Open State Optimization** - MUST intelligently manage half-open state duration and test request frequency
3. **Service Health Scoring** - MUST calculate composite health scores from multiple metrics
4. **Recovery Success Prediction** - MUST predict recovery success probability before state transitions

**Success Criteria**:
- 25% reduction in false positive circuit breaker trips
- 40% faster service recovery time compared to static timeouts
- 95% accuracy in recovery success prediction
- Support for service-specific recovery profiles

**Business Value**: Improved service availability and reduced operational overhead through intelligent automation

#### **BR-GATEWAY-METRICS-003: Advanced Failure Pattern Recognition**
**Business Requirement**: The system MUST detect and classify failure patterns to enable predictive maintenance and proactive intervention strategies.

**Functional Requirements**:
1. **Pattern Classification** - MUST classify failures into categories (transient, persistent, cascading, resource-related)
2. **Predictive Analytics** - MUST predict potential failures based on metric trends and patterns
3. **Anomaly Detection** - MUST detect unusual failure patterns that deviate from historical norms
4. **Root Cause Correlation** - MUST correlate circuit breaker failures with system-wide events

**Success Criteria**:
- 85% accuracy in failure pattern classification
- 70% accuracy in failure prediction with 5-minute lead time
- <2% false positive rate in anomaly detection
- 90% correlation accuracy between failures and root causes

**Business Value**: Predictive maintenance capabilities reduce unplanned downtime by 50-70%

#### **BR-GATEWAY-METRICS-004: Operational Intelligence Dashboard Integration**
**Business Requirement**: The system MUST provide comprehensive operational intelligence through metrics integration with monitoring and alerting systems.

**Functional Requirements**:
1. **Metrics Export** - MUST export metrics in Prometheus format for monitoring integration
2. **Alert Generation** - MUST generate intelligent alerts based on circuit breaker patterns and thresholds
3. **Dashboard Integration** - MUST provide pre-built Grafana dashboards for operational visibility
4. **SLA Monitoring** - MUST track SLA compliance and availability metrics per service

**Success Criteria**:
- 100% metrics export compatibility with Prometheus/Grafana
- <5 second alert generation latency for critical events
- 99.9% dashboard data accuracy and availability
- Real-time SLA compliance tracking with 1-minute granularity

**Business Value**: Enhanced operational visibility enables 30-50% faster incident response

#### **BR-GATEWAY-METRICS-005: Performance Optimization & Resource Efficiency**
**Business Requirement**: The system MUST optimize circuit breaker performance to minimize resource overhead while maintaining comprehensive monitoring capabilities.

**Functional Requirements**:
1. **Memory Optimization** - MUST use efficient data structures to minimize memory footprint
2. **CPU Efficiency** - MUST optimize metric calculations to minimize CPU overhead
3. **Storage Optimization** - MUST implement efficient metric storage and retention policies
4. **Scalability Support** - MUST scale to support enterprise-level traffic volumes

**Success Criteria**:
- <1% CPU overhead for circuit breaker operations
- <10MB memory usage per 1000 circuit breaker instances
- Support for 100,000+ requests per second throughput
- Linear scalability with configurable resource limits

**Business Value**: Enterprise scalability with minimal infrastructure cost impact

---

## 15. AI Coordination Patterns (V1 Enhancement)

### 15.1 Single-Provider AI Coordination Intelligence

#### **BR-AI-COORD-V1-001: Single-Provider AI Coordination Intelligence**
**Business Requirement**: The system MUST provide intelligent AI coordination for single-provider scenarios (HolmesGPT-API) with graceful degradation and fallback mechanisms.

**Functional Requirements**:
1. **Provider Health Monitoring** - MUST continuously monitor HolmesGPT-API health and availability
2. **Intelligent Fallback** - MUST implement rule-based fallback when AI provider is unavailable
3. **Confidence Threshold Management** - MUST apply configurable confidence thresholds for AI recommendations
4. **Response Quality Validation** - MUST validate AI response quality and reject invalid responses

**Success Criteria**:
- 99.9% AI provider health detection accuracy
- <2 second fallback activation time
- 90% accuracy in confidence threshold application
- 95% success rate in response quality validation

**Business Value**: Reliable AI-powered decision making with 99.5% system availability

#### **BR-AI-COORD-V1-002: Enhanced Processing Result Management**
**Business Requirement**: The system MUST provide comprehensive processing result management with detailed analytics and performance tracking for AI coordination workflows.

**Functional Requirements**:
1. **Result Classification** - MUST classify processing results (AI-enhanced, rule-based, fallback)
2. **Performance Metrics** - MUST track processing times, success rates, and confidence levels
3. **Quality Analytics** - MUST analyze AI recommendation quality and effectiveness over time
4. **Decision Audit Trail** - MUST maintain detailed audit trails for AI-driven decisions

**Success Criteria**:
- 100% result classification accuracy with detailed categorization
- <100ms performance metrics collection overhead
- 90% accuracy in quality analytics and trend analysis
- Complete audit trail coverage for compliance and debugging

**Business Value**: 20-30% improvement in AI decision quality through comprehensive analytics

#### **BR-AI-COORD-V1-003: Adaptive Configuration and Learning Optimization**
**Business Requirement**: The system MUST provide adaptive configuration management that learns from AI coordination patterns to optimize future processing decisions.

**Functional Requirements**:
1. **Configuration Learning** - MUST learn optimal configuration parameters from processing patterns
2. **Adaptive Thresholds** - MUST automatically adjust confidence thresholds based on success patterns
3. **Performance Optimization** - MUST optimize processing workflows based on historical performance data
4. **Continuous Improvement** - MUST implement feedback loops for continuous system optimization

**Success Criteria**:
- 15% improvement in processing efficiency through adaptive configuration
- 90% accuracy in threshold optimization based on historical data
- 25% reduction in processing latency through workflow optimization
- Measurable continuous improvement in system performance metrics

**Business Value**: Self-optimizing system reduces operational overhead and improves decision quality

---

## 16. Success Criteria

### 14.1 Functional Success
- Webhook handler processes all incoming alerts with >99.5% success rate
- Alert processor provides intelligent filtering with >90% accuracy
- Environment classification achieves >99% accuracy in production namespace identification
- Business priority assignment aligns with organizational SLA requirements with >98% accuracy
- Notification system delivers messages with >95% success rate across all channels
- Integration points support all required external systems with full functionality
- Configuration management enables easy setup and maintenance of integrations

### 14.2 Performance Success
- All integration operations meet defined latency requirements under load
- System scales to handle enterprise volumes without performance degradation
- High availability targets are achieved with minimal service disruption
- Resource utilization remains within optimal ranges under normal operations
- Error recovery completes within defined timeframes

### 14.3 Business Success
- Integration layer reduces manual monitoring effort by 80%
- Environment-based alert routing improves incident response time by 60%
- Production namespace identification prevents critical alert misclassification with zero false negatives
- Business priority-based processing reduces high-priority alert response time by 50%
- User satisfaction with integration reliability exceeds 90%
- Integration costs are optimized through efficient resource usage
- Business continuity is maintained during external service outages

---

## 15. SignalProcessing CRD Controller (V1.0)

> **Note**: The SignalProcessing CRD Controller replaces the legacy Remediation Processor for Kubernetes-native signal processing. For detailed requirements, see the authoritative source below.

### 15.1 Authoritative Requirements Source

**Document**: [SignalProcessing BUSINESS_REQUIREMENTS.md](../services/crd-controllers/01-signalprocessing/BUSINESS_REQUIREMENTS.md)

### 15.2 Requirement Summary

| Category | Range | Count | Description |
|----------|-------|-------|-------------|
| Core Enrichment | BR-SP-001 to BR-SP-012 | 5 | K8s context, classification, recovery |
| Environment Classification | BR-SP-051 to BR-SP-053 | 3 | Namespace-based detection |
| Priority Assignment | BR-SP-070 to BR-SP-072 | 3 | Rego-based priority engine |
| Business Classification | BR-SP-080 to BR-SP-081 | 2 | Confidence scoring |
| Audit & Observability | BR-SP-090 | 1 | Audit trail |
| Label Detection | BR-SP-100 to BR-SP-104 | 5 | DD-WORKFLOW-001 v2.2 schema |

**Total**: 19 business requirements (P0: 7, P1: 9, P2: 3)

### 15.3 Key Changes from Legacy Processor

| Aspect | Legacy Processor | SignalProcessing CRD |
|--------|------------------|---------------------|
| Architecture | In-memory processing | Kubernetes CRD + Controller |
| State | Ephemeral | Persistent (CRD status) |
| Recovery | Manual retry | K8s reconciliation loop |
| Labels | None | DD-WORKFLOW-001 v2.2 (8 detected + custom) |
| Audit | Optional | Mandatory (BR-SP-090) |

### 15.4 Migration Path

The SignalProcessing CRD Controller will coexist with the legacy Remediation Processor during V1.0:
- Gateway creates SignalProcessing CRD instead of calling processor directly
- Remediation Orchestrator reads from SignalProcessing CRD status
- Legacy processor paths deprecated after V1.1

---

*This document serves as the definitive specification for business requirements of Kubernaut's Integration Layer. All implementation and testing should align with these requirements to ensure reliable, secure, and efficient integration with external systems and notification delivery.*
