Crate syncable_ag_ui_core 

AG-UI Core Types

This crate provides the core type definitions for the AG-UI (Agent-User Interaction) protocol. It includes event types, message structures, state management primitives, and error handling for building AG-UI compatible agents.

Overview

AG-UI is an event-based protocol that standardizes how AI agents communicate with user-facing applications. This crate provides:

• Event types: All ~25 AG-UI protocol event types (text messages, tool calls, state, etc.)
• Message types: Structured message formats for agent-user communication
• State management: State snapshots and JSON Patch delta operations
• Error handling: Comprehensive error types for protocol operations

Usage

use ag_ui_core::{Event, Result};

Re-exports

pub use error::AgUiError;

pub use error::Result;

pub use state::diff_states;

pub use state::AgentState;

pub use state::FwdProps;

pub use state::StateManager;

pub use state::TypedStateManager;

pub use event::BaseEvent;

pub use event::Event;

pub use event::EventType;

pub use event::EventValidationError;

pub use event::TextMessageChunkEvent;

pub use event::TextMessageContentEvent;

pub use event::TextMessageEndEvent;

pub use event::TextMessageStartEvent;

pub use event::ThinkingTextMessageContentEvent;

pub use event::ThinkingTextMessageEndEvent;

pub use event::ThinkingTextMessageStartEvent;

pub use event::ToolCallArgsEvent;

pub use event::ToolCallChunkEvent;

pub use event::ToolCallEndEvent;

pub use event::ToolCallResultEvent;

pub use event::ToolCallStartEvent;

pub use event::ThinkingEndEvent;

pub use event::ThinkingStartEvent;

pub use event::MessagesSnapshotEvent;

pub use event::StateDeltaEvent;

pub use event::StateSnapshotEvent;

pub use event::ActivityDeltaEvent;

pub use event::ActivitySnapshotEvent;

pub use event::CustomEvent;

pub use event::RawEvent;

pub use event::InterruptInfo;

pub use event::RunErrorEvent;

pub use event::RunFinishedEvent;

pub use event::RunFinishedOutcome;

pub use event::RunStartedEvent;

pub use event::StepFinishedEvent;

pub use event::StepStartedEvent;

pub use types::*;

Modules

error

Error types for AG-UI core operations.

event

AG-UI Event Types

patch

JSON Patch utilities for AG-UI state delta generation.

state

AG-UI State Management

types

AG-UI Protocol Types

Enums

JsonValue

Re-export serde_json::Value for consistent JSON handling across the crate Represents any valid JSON value.