Struct SyncFallbackTool 

pub struct SyncFallbackTool { /* private fields */ }

Fallback impl for providers without a dedicated streaming adapter in 34.d’s scope (http / mcp / unknown). The stream() method emits a single error-terminator chunk indicating that the provider’s streaming surface lands in a later sub-fase (Fase 34.e for HTTP, Fase 34.f for MCP).

This is a HONEST fallback — it does NOT silently coerce a streaming declaration into a synchronous call. Adopters who declare a stream effect on an HTTP/MCP tool today see a clear ToolFinishReason::Error { message: "streaming adapter not yet implemented for provider 'http' — pending Fase 34.e" } terminator chunk. After 34.e/f, the bridge’s match arms route these providers to their dedicated streaming impls.

Implementations

impl SyncFallbackTool

pub fn new(name: String, provider: String) -> Self

Trait Implementations

impl Tool for SyncFallbackTool

fn execute<'life0, 'async_trait>( &'life0 self, _args: String, _ctx: ToolContext, ) -> Pin<Box<dyn Future<Output = ToolResult> + Send + 'async_trait>>

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

Execute the tool synchronously. Returns a single materialized ToolResult. EVERY tool MUST implement this method (no default — there’s no sensible default execute).

fn stream<'life0, 'async_trait>( &'life0 self, args: String, ctx: ToolContext, ) -> Pin<Box<dyn Future<Output = ToolStream> + Send + 'async_trait>>

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

Stream the tool’s output as a sequence of ToolChunks.

fn is_streaming(&self) -> bool

Whether this tool is a stream producer. Default: false.