Third-Party Library Integration Guide
This document outlines the integration strategy for third-party libraries across all vertical feature slices in the Atlas architecture.
Overview
Atlas integrates carefully selected third-party libraries to leverage battle-tested implementations while maintaining architectural consistency. Each feature slice uses specific libraries optimized for its domain.
Core Integration Libraries
Schema and Validation
- Marshmallow: Primary schema validation, serialization, and documentation
- Marshmallow-Dataclass: Type-safe schema creation from dataclasses
State Management
- Pyrsistent: Immutable data structures with structural sharing
- Eventsourcing: Event-sourced state with temporal tracking
- DiffSync: State synchronization and conflict resolution
Event and Communication
- Blinker: Signal-based event dispatch and subscription
- Effect: Side effect tracking and testable operations
Dependency and Lifecycle
- Dependency Injector: Component lifecycle and service discovery
- AspectLib: Cross-cutting concerns management
Execution and Parallelism
- TaskMap: Dependency-based parallel execution
Feature Slice Integration Patterns
Streaming Chat
- Blinker: Event bus for reactive communication
- Pyrsistent: Immutable state containers for thread safety
- Marshmallow: Schema validation for streaming responses
- Effect: Side effect tracking for streaming operations
Agent Delegation
- Eventsourcing: Temporal agent state tracking
- Blinker: Inter-agent message publication/subscription
- DiffSync: Agent state synchronization
- Marshmallow: Agent and message schema validation
Knowledge Retrieval
- AspectLib: Cross-cutting concerns for retrieval pipeline
- Dependency Injector: Service discovery for retrieval components
- Marshmallow: Document and chunk schema validation
- Pyrsistent: Immutable document representation
Multi-Provider Routing
- Dependency Injector: Provider container and registration
- Effect: Provider operation side effects
- DiffSync: Provider state reconciliation
- Marshmallow: Provider capability validation
Workflow Execution
- TaskMap: Parallel task execution with dependencies
- Blinker: Event-driven workflow coordination
- Pyrsistent: Immutable workflow definitions
- Effect: Workflow side effect management
Command CLI
- Dependency Injector: CLI service resolution
- AspectLib: Command cross-cutting extensions
- Marshmallow: Command parameter validation
- Effect: Command execution effect tracking
Integration Guidelines
Schema-First Approach
- Define schemas before implementation
- Use schema validation at all API boundaries
- Generate documentation from schemas
- Implement schema evolution with versioning
Performance Considerations
- Cache schema instances for frequent validations
- Use lazy initialization for resource-intensive components
- Implement batched operations where applicable
- Optimize for common usage patterns
Error Handling
- Comprehensive error recovery strategies
- Graceful degradation when libraries unavailable
- Detailed error messages with context
- Consistent error handling patterns
Testing Integration
- Mock library dependencies for unit tests
- Integration tests with real library instances
- Performance benchmarks for library operations
- Compatibility testing across library versions
Implementation Notes
- All libraries chosen for production readiness and maintenance
- Consistent usage patterns across feature slices
- Minimal coupling between library integrations
- Clear separation of concerns per library
See Proposed Structure for architectural context and Implementation Guide for schema implementation details.