Core Concepts

Theater is built on three fundamental pillars that work together to create a system that is secure, reliable, and transparent. This section explains what Theater is and the key concepts that make it the ideal infrastructure for AI agent systems.

The Three Pillars of Theater

WebAssembly Components & Sandboxing

WebAssembly provides the foundation for Theater's security and capability controls:

Strong security boundaries through sandboxing
Deterministic execution for reproducible behavior
Language-agnostic agent implementation
Capability-based security model for precise access control

Actor Model & Supervision

The Actor Model enables Theater's approach to agent organization, communication, and fault tolerance:

Agents as independent, isolated entities
Message-passing for all agent-to-agent communication
Private state management for each agent
Hierarchical supervision for reliable agent systems

Traceability & Verification

Traceability ensures that all agent actions are observable, auditable, and debuggable:

Event Chain capturing every agent action
Deterministic replay for verification and debugging
State management for consistent agent snapshots
Comprehensive tools for inspection and analysis

How The Pillars Work Together

These three pillars complement each other to create Theater's unique properties for agent systems:

WebAssembly + Actor Model: Provides secure agents with clear communication patterns
WebAssembly + Traceability: Enables deterministic replay and verification of agent behavior
Actor Model + Traceability: Supports failure diagnosis and recovery in complex agent systems