Struct BuiltinToolsConfig 

pub struct BuiltinToolsConfig<E: Environment + 'static> {
    pub environment: Arc<E>,
    pub capabilities: AgentCapabilities,
    pub todo_state: Option<Arc<RwLock<TodoState>>>,
    pub link_fetch: bool,
}

Configuration for register_builtin_tools.

Every field except environment and capabilities is optional because the corresponding tool family has side effects or dependencies that must be provisioned by the host.

The tool families with more complex constructors — in particular AskUserQuestionTool (requires a pair of mpsc channels) and WebSearchTool (requires a typed SearchProvider) — are not wired through this config to avoid over-coupling it to transport or provider choices. Register them with register_web_search or directly against the registry.

Fields

environment: Arc<E>

Filesystem environment used by the primitive tools.

capabilities: AgentCapabilities

Capability policy enforced by the primitive tools.

todo_state: Option<Arc<RwLock<TodoState>>>

Shared todo state. When Some, registers TodoRead / TodoWrite.

link_fetch: bool

Available on crate feature web only.

When true, registers LinkFetchTool with default settings.

Only present when the web feature is enabled.