Enum ThreadItem 

pub enum ThreadItem {
    UserMessage(UserMessageItem),
    AgentMessage(AgentMessageItem),
    Reasoning(ReasoningItem),
    CommandExecution(CommandExecutionItem),
    FileChange(FileChangeItem),
    McpToolCall(McpToolCallItem),
    WebSearch(WebSearchItem),
    TodoList(TodoListItem),
    Error(ErrorItem),
}

All possible thread item types emitted by the Codex CLI.

Items are the core building blocks of a turn. Each variant represents a different kind of work the agent performed. Items arrive via item/started and item/completed notifications and are collected in the final Turn.

Accepts both snake_case (agent_message) and camelCase (agentMessage) type tags for compatibility with the exec and app-server protocols.

Variants

UserMessage(UserMessageItem)

The user’s prompt for the turn (app-server protocol only).

AgentMessage(AgentMessageItem)

Text output from the agent.

Reasoning(ReasoningItem)

Chain-of-thought reasoning from the model.

CommandExecution(CommandExecutionItem)

A shell command the agent executed.

FileChange(FileChangeItem)

File modifications the agent applied.

McpToolCall(McpToolCallItem)

An MCP tool call to an external server.

WebSearch(WebSearchItem)

A web search the agent performed.

TodoList(TodoListItem)

A todo list the agent maintains.

Error(ErrorItem)

An error that occurred during processing.

Trait Implementations

impl Clone for ThreadItem

fn clone(&self) -> ThreadItem

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ThreadItem

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ThreadItem

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ThreadItem

fn eq(&self, other: &ThreadItem) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ThreadItem

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ThreadItem