Release 0.4.0 (2026-02-20)

Added

Protocol Specification

• Streaming Support — Formalized ModuleAnnotations.streaming and Executor.stream() behavior in protocol specification
• Shallow Merge for Streaming — Algorithm for accumulating streaming chunks for output validation and post-processing

Release 0.3.0 (2026-02-20)

Added

Protocol Specification

• ErrorCodes Catalog — Standardized error code constants (replaces hardcoded strings)
• ContextFactory Protocol — Interface for creating Context from platform-specific requests
• Registry Constants — Standardized module ID patterns and event types
• Comprehensive Schema System — Formalized schema loading, validation, and multi-profile export (MCP, OpenAI, Anthropic) requirements

Release 0.2.0 (2026-02-16)

Changed

Protocol Specification

• Module ID Validation — Strengthened pattern to ^[a-z][a-z0-9_]*(\.[a-z][a-z0-9_]*)*$ (lowercase, digits, underscores, dots; no hyphens)
• Registry Event Constants — Standardized event names for module registration lifecycle

Release 0.1.0 (2026-01-01)

Initial Release

Added

Core Framework

• Schema-driven modules - Define modules with Pydantic input/output schemas and automatic validation
• @module decorator - Zero-boilerplate decorator to turn functions into schema-aware modules
• Executor - 10-step execution pipeline with comprehensive safety and security checks
• Registry - Module registration and discovery system with metadata support

Security & Safety

• Access Control (ACL) - Pattern-based, first-match-wins rule system with wildcard support
• Call depth limits - Prevent infinite recursion and stack overflow
• Circular call detection - Detect and prevent circular module calls
• Frequency throttling - Rate limit module execution
• Timeout support - Configure execution timeouts per module

Middleware System

• Composable pipeline - Before/after hooks for request/response processing
• Error recovery - Graceful error handling and recovery in middleware chain
• LoggingMiddleware - Structured logging for all module calls
• TracingMiddleware - Distributed tracing with span support for observability

Bindings & Configuration

• YAML bindings - Register modules declaratively without modifying source code
• Configuration system - Centralized configuration management
• Environment support - Environment-based configuration override

Observability

• Tracing - Span-based distributed tracing integration
• Metrics - Built-in metrics collection for execution monitoring
• Context logging - Structured logging with execution context propagation

Async Support

• Sync/Async modules - Seamless support for both synchronous and asynchronous execution
• Async executor - Non-blocking execution for async-first applications

Developer Experience

• Type safety - Full type annotations across the framework
• Comprehensive tests - 90%+ test coverage with unit and integration tests
• Documentation - Quick start guide, examples, and API documentation
• Examples - Sample modules demonstrating decorator-based and class-based patterns