Struct McpConnectTool 

pub struct McpConnectTool { /* private fields */ }

A tool that lazily connects to MCP servers on demand. Instead of spawning all servers at startup (burning tokens on 65 tool schemas), this registers ONE tool that the model calls to activate a specific server.

MCP connect gateway — discovers tools from an MCP server and registers them dynamically. Uses the ToolContext.tool_register_tx channel instead of holding a direct Arc to the registry, breaking the circular reference that previously existed.

Implementations

impl McpConnectTool

pub fn new(configs: HashMap<String, McpServerConfig>) -> Self

Trait Implementations

impl Tool for McpConnectTool

fn origin(&self) -> ToolOrigin

Runtime-origin identity used for catalog provenance. Conservative by default: tools that declare nothing are Unknown (fail-closed source trust), and tools that declare an owning extension classify as extension-provided. Built-in implementations override this explicitly.

fn name(&self) -> &str

Tool name as it appears in the API (e.g. “bash”, “read”).

fn description(&self) -> &str

Human-readable description sent to the model.

fn parameters(&self) -> Value

JSON Schema for the tool’s parameters.

fn execute<'life0, 'async_trait>( &'life0 self, params: Value, ctx: ToolContext, ) -> Pin<Box<dyn Future<Output = Result<String>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Execute the tool with the given parameters.

fn extension_id(&self) -> Option<&str>

Owning extension id for tools registered by an extension. Built-in tools return None.

fn effect(&self) -> ToolEffect

Conservative effect class (Task 24, spec §8.2). The default keeps unknown/dynamic tools NonIdempotent — serialized execution; implementations opt IN to weaker classes explicitly.

fn concurrency_key(&self, _validated_input: &Value) -> Option<ConcurrencyKey>

Key resolution derived from validated input. Serialize explicitly fails closed into the global mutation lane; None is the conservative default for tools with no key support.