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runtime operation overview.md

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Eliza Runtime Operation Overview

Disclaimer

This document was AI-generated by Cascade on 2025-01-02, based on analysis of the Eliza agent core source code from v.01.6-alpha5. While efforts have been made to ensure accuracy, this documentation may (and probably does) contain inaccuracies. Use at your own RISK! Please use with discretion and refer to the original source code for definitive implementation details.

Table of Contents

  1. Action Runtime Operations

  2. Provider Runtime Operations

  3. Evaluator Handler Runtime Operations

Action Runtime Operations

Actions are the primary mechanisms through which agents effect change in their environment, enabling interaction with external systems and control of conversation flow. For more detailed information about actions and their implementation, see the Action Runtime Operation documentation.

Action Architecture

Actions follow a clear architectural pattern:

  • Defined interfaces for standardized interaction
  • Pluggable implementation for extensibility
  • State management and validation
  • Error handling and recovery

Action Lifecycle

  1. Registration: Actions are registered with the runtime
  2. Validation: Input parameters are validated
  3. Execution: Action logic is performed
  4. Result Processing: Outputs are processed and returned

Built-in Actions

  • Core system actions for basic operations
  • Communication actions for message handling
  • State management actions
  • External integration actions

Provider Runtime Operations

Providers serve as dynamic context injectors that bridge the agent with external systems and real-time information sources. For comprehensive details, refer to the Provider Runtime Operation documentation.

Provider Lifecycle

  1. Registration: Providers are registered through plugins
  2. Runtime Integration: Providers are integrated into the runtime environment
  3. Parallel Execution: Multiple providers can run concurrently
  4. Context Generation: Each provider contributes to the overall context

Provider Types

  • System State Providers
  • External Data Providers
  • Context Enrichment Providers
  • Integration Providers

Runtime Architecture

  • Modular provider system
  • Concurrent execution framework
  • State isolation and management
  • Error handling and recovery

Evaluator Handler Runtime Operations

Handlers are core components responsible for evaluating and processing messages within the Eliza framework. They operate through a multi-stage execution process that ensures proper validation and sequential processing. For detailed information, see the Handler Runtime Operation documentation.

Evaluation Process

The evaluation process is managed by the evaluate() method in the AgentRuntime class, which coordinates the validation and execution of handlers based on the current message and state.

Execution Stages

  1. Parallel Validation: All evaluators are validated concurrently
  2. Resolution and Filtering: Valid evaluators are filtered and selected
  3. Text Generation: Context-aware selection of evaluators to run
  4. Sequential Handler Execution: Selected handlers are executed in sequence

Runtime Flow

  • Handlers are executed in a deterministic sequence
  • Each handler receives runtime context, message, state, and callback
  • Circuit breaker patterns prevent cascading failures
  • Performance metrics are collected during execution

Common Patterns Across Components

  1. State Management

    • Consistent state access across components
    • Sequential state updates
    • State preservation between calls

  2. Error Handling

    • Circuit breaker patterns
    • Graceful degradation
    • Error logging and monitoring

  3. Performance Optimization

    • Parallel execution where possible
    • Resource management
    • Caching strategies

  4. Extensibility

    • Plugin-based architecture
    • Custom component registration
    • Flexible integration points