Struct ToolGroup 

pub struct ToolGroup {
    pub id: String,
    pub title: String,
    pub description: String,
    pub instructions: Option<String>,
    pub members: Vec<String>,
}

A related set of callables surfaced together from one source.

A group tells the model that a bundle of tools share an origin (for example a single MCP server, or the built-in filesystem tools) and are meant to be combined to complete related work. Groups are a discovery-layer concept only: they are never sent to model providers as part of the function-calling schema. They are returned by the built-in discovery helpers (tools_search / tools_select) so the model can understand a bundle’s purpose and pull in sibling tools as needed.

instructions, title, and description may originate from untrusted remote metadata. They are surfaced as plain data the model reads, never as system instructions, so they cannot escalate into runtime directives.

Fields

id: String

Stable group id, unique across providers (for example mcp:filesystem).

title: String

Human-facing group title.

description: String

Concise summary of what this bundle of tools does.

instructions: Option<String>

Optional usage instructions describing how the member tools work together. Untrusted remote metadata; treat as reference, not directives.

members: Vec<String>

Model-facing names of the tools that belong to this group.

Implementations

impl ToolGroup

pub fn from_info(info: ToolGroupInfo, members: Vec<String>) -> Self

Builds a group from a per-tool ToolGroupInfo and resolved members.

Trait Implementations

impl Clone for ToolGroup

fn clone(&self) -> ToolGroup

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolGroup

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

Formats the value using the given formatter.

impl Default for ToolGroup

fn default() -> ToolGroup

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ToolGroup

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ToolGroup

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

where __S: Serializer,

Serialize this value into the given Serde serializer.