Enum ToolOrigin 

pub enum ToolOrigin {
    System,
    Mcp,
}

Tool origin classification

Distinguishes between provider-native tools and MCP protocol tools.

Important

The origin is determined by how the tool is invoked, not by what it operates on:

• System: Tool is built-in to the provider and invoked directly by the LLM
• Mcp: Tool is invoked via MCP protocol (typically prefixed with mcp__)

Examples

• Bash (Claude Code) → System (provider-native tool)
• read_mcp_resource (Codex) → System (provider-native tool that happens to read MCP resources)
• mcp__sqlite__query → Mcp (external tool invoked via MCP protocol)

Variants

System

System-provided tool (built-in to the provider)

Mcp

MCP (Model Context Protocol) tool invoked via MCP protocol

Trait Implementations

impl Clone for ToolOrigin

fn clone(&self) -> ToolOrigin

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolOrigin

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ToolOrigin

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ToolOrigin

fn eq(&self, other: &ToolOrigin) -> 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 ToolOrigin

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ToolOrigin

impl Eq for ToolOrigin

impl StructuralPartialEq for ToolOrigin