LegionIO chains tasks into dependency graphs across a RabbitMQ fleet, or fully in-process via lite mode with zero infrastructure. Optional layers install as independent gems: legion-llm adds tiered LLM routing with mid-stream failover and context curation, legion-mcp adds an MCP server, legion-rbac adds access control. All open source, no feature gates.

LegionIO chains tasks into dependency graphs across a RabbitMQ fleet, or fully in-process via lite mode with zero infrastructure. Optional layers install as independent gems: legion-llm adds tiered LLM routing with mid-stream failover and context curation, legion-mcp adds an MCP server, legion-rbac adds access control. All open source, no feature gates.

Model Context Protocol server with semantic tool matching, observation pipeline, and tiered inference for LegionIO

Bidirectional Agent Communication Protocol adapter — exposes Legion agents via ACP and consumes external ACP agents

Standardized interface for invoking external AI agents via CLI, process, or HTTP

LEX agentic affect domain: emotions, valence, mood regulation

LEX agentic attention domain: focus, salience, cognitive control

LEX agentic defense domain: threat detection, stress response, boundaries

LEX agentic executive domain: planning, working memory, cognitive control

LEX agentic homeostasis domain: self-regulation, balance, resource management

LEX agentic imagination domain: mental simulation, creativity, prospection

LEX agentic inference domain: causal reasoning, prediction, belief updating

LEX agentic integration domain: cross-domain binding and synthesis

LEX agentic language domain: linguistic processing and communication

LEX agentic learning domain: adaptation, memory consolidation, skill acquisition

LEX agentic memory domain: episodic, semantic, and working memory

LEX agentic self domain: identity, metacognition, self-model

LEX agentic social domain: empathy, social cognition, theory of mind

Durable shared knowledge with vector search, concept graph, and expertise tracking

Fleet pipeline intake: classify, deduplicate, and route work items