Struct HostToolSpec 

pub struct HostToolSpec {
    pub name: String,
    pub description: String,
    pub input_schema: Value,
    pub group: Option<String>,
    pub handler: Arc<dyn ToolHandler>,
}

Declarative spec for a Rust-implemented tool injected into the Lua tool registry before the user script runs. The resulting entry is indistinguishable from a Lua-defined tool from the script’s view: tool.call("<name>", input), agent.run({ ... }) tool dispatch, and tool.schema() enumeration all work uniformly.

Fields

name: String

Tool name. Becomes the routing key in _TOOL_REGISTRY and the name field exposed by tool.schema() (Anthropic tool spec).

description: String

Free-form description shown to the LLM. Becomes the description field of the Anthropic tool spec.

input_schema: Value

Input schema (Anthropic-compatible JSON Schema object).

group: Option<String>

Optional group label for [agent.run’s tool_groups] filter and for [BlockConfig::tool_policy] (planned).

handler: Arc<dyn ToolHandler>

Rust callback dispatched on every invocation.

Trait Implementations

impl Clone for HostToolSpec

fn clone(&self) -> HostToolSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HostToolSpec

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

Formats the value using the given formatter.