Struct ToolDefinition 

pub struct ToolDefinition {
    pub id: ToolId,
    pub name: String,
    pub description: String,
    pub input_schema: Value,
    pub output_schema: Value,
    pub compression_transforms: Vec<String>,
}

A tool definition with an id, name, and description.

Fields

id: ToolId

name: String

description: String

input_schema: Value

JSON Schema for the tool’s input parameters.

output_schema: Value

Optional JSON Schema describing the structure of a tool’s structured output (see MCP spec outputSchema).

Per the MCP 2025-06-18 specification, when present this schema’s root type MUST be "object" and servers MUST return structuredContent matching the schema. Leave as Value::Null (the default) when the tool returns plain text via the content field — strict clients such as OpenCode validate this and will disable the whole server if a scalar-typed schema is advertised (reported in issue #5).

compression_transforms: Vec<String>

Description of what sqz does to this tool’s output.

Trait Implementations

impl Clone for ToolDefinition

fn clone(&self) -> ToolDefinition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolDefinition

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

Formats the value using the given formatter.

impl Default for ToolDefinition

fn default() -> ToolDefinition

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ToolDefinition

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ToolDefinition

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

where __S: Serializer,

Serialize this value into the given Serde serializer.