Struct RetryToolLayer 

pub struct RetryToolLayer { /* private fields */ }

tower::Layer that retries tool dispatches per the wrapped tool’s RetryHint metadata.

Cloning is cheap — internal state is Arc-backed.

Implementations

impl RetryToolLayer

pub const NAME: &'static str = "tool_retry"

Patch-version-stable identifier surfaced through ToolRegistry::layer_names. Distinguished from the transport-level crate::transports::RetryLayer ("retry") — this layer drives per-tool retries from the wrapped tool’s RetryHint metadata, not from a global crate::transports::RetryPolicy. Renaming this constant is a breaking change for dashboards keyed off the value.

pub fn new() -> Self

Build with the default classifier (DefaultRetryClassifier) and DEFAULT_MAX_BACKOFF cap.

pub fn with_classifier(self, classifier: Arc<dyn RetryClassifier>) -> Self

Replace the RetryClassifier consulted on each failure. Operators with custom retry policy (e.g. retry only on Transient, ignore RateLimit) install their own classifier here.

pub const fn with_max_backoff(self, max: Duration) -> Self

Override the per-attempt backoff cap. The geometric growth of hint.initial_backoff * 2^attempt is clamped to this value before jitter is applied.

Trait Implementations

impl Clone for RetryToolLayer

fn clone(&self) -> RetryToolLayer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RetryToolLayer

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

Formats the value using the given formatter.

impl Default for RetryToolLayer

fn default() -> Self

Returns the “default value” for a type.

impl<S> Layer<S> for RetryToolLayer

where S: Service<ToolInvocation, Response = Value, Error = Error> + Clone + Send + 'static, S::Future: Send + 'static,

type Service = RetryToolService<S>

The wrapped service

fn layer(&self, inner: S) -> Self::Service

Wrap the given service with the middleware, returning a new service that has been decorated with the middleware.

impl NamedLayer for RetryToolLayer

fn layer_name(&self) -> &'static str

Stable, patch-version-stable identifier surfaced through crate::ChatModel::layer_names. See trait doc for the naming convention.