Release Notes v0.3.0¶

Release Date: December 21, 2025

This release introduces major features for agent interoperability, observability, and security, along with performance improvements and comprehensive documentation updates.

Highlights¶

A2A Protocol Support - Full inter-agent protocol implementation for agent interoperability
LLM Observability - MetaObserve integration for tracing and monitoring LLM operations
Security Documentation - Comprehensive security guide for production deployments
Project Roadmap - Published feature roadmap for Q1-Q3 2026

New Features¶

A2A Inter-Agent Protocol Support¶

Added support for Google's Agent-to-Agent (A2A) protocol across all agents, enabling standardized inter-agent communication and interoperability:

agents/orchestration/a2a.go - A2A server for ADK orchestration agent
agents/orchestration-eino/a2a.go - A2A server for Eino orchestration agent
agents/research/a2a.go - A2A server for research agent
agents/synthesis/a2a.go - A2A server for synthesis agent
agents/verification/a2a.go - A2A server for verification agent

Uses the a2aproject/a2a-go library with Google ADK's adka2a integration.

LLM Observability via MetaObserve¶

Added integrated observability for LLM operations with support for multiple backends:

Opik - Comet ML's LLM observability platform
Langfuse - Open-source LLM observability
Phoenix - Arize AI's open-source observability

Configuration via environment variables: - OBSERVABILITY_ENABLED=true - OBSERVABILITY_PROVIDER=opik|langfuse|phoenix - OBSERVABILITY_PROJECT=your-project-name

LLM Adapter Refactoring¶

Replaced the gollm adapter with the new MetaLLM adapter (pkg/llm/adapters/metallm_adapter.go) for improved multi-LLM provider support with built-in observability hooks.

Documentation¶

Security Guide (`README_SECURITY.md`)¶

Comprehensive security documentation covering: - Threat modeling for multi-agent systems - Credential management best practices - Cloud deployment security (AWS/Azure) - SPIFFE/SPIRE workload identity - Network and API security - Container security hardening - Incident response procedures - Compliance considerations

Project Roadmap (`ROADMAP.md`)¶

Published feature roadmap including: - Q1 2026: Perplexity API, range statistics, response streaming - Q2 2026: Multi-language support, caching layer, GraphQL API - Q3 2026: Browser extension, Notion/Confluence integrations, citation formats

Presentation Materials¶

Added presentation.md with comprehensive project overview for conferences and demos.

Enhancements¶

Performance improvement - Enhanced team stats finding via make run-all-eino
Updated README - Revised architecture diagram and feature documentation
Interactive documentation - Added docs/index.html for browsable documentation

Dependencies¶

Updated github.com/cloudwego/eino from 0.7.8 to 0.7.10
Added github.com/a2aproject/a2a-go for A2A protocol support
Added github.com/grokify/metallm for unified LLM interface
Added github.com/grokify/metaobserve for observability integration
Various go.mod dependency updates

Bug Fixes¶

Fixed various linting issues identified by golangci-lint

Breaking Changes¶

None.

Migration Guide¶

Enabling Observability (Optional)¶

To enable LLM observability, set the following environment variables:

export OBSERVABILITY_ENABLED=true
export OBSERVABILITY_PROVIDER=opik  # or langfuse, phoenix
export OBSERVABILITY_PROJECT=stats-agent
export OBSERVABILITY_API_KEY=your-api-key  # if required by provider

A2A Protocol¶

A2A servers run alongside existing HTTP servers. No configuration changes required - A2A support is automatically available when agents start.

Contributors¶

John Wang (@grokify)

Full Changelog: v0.2.0...v0.3.0