Enum StreamError 

pub enum StreamError {
    Transient(String),
    ProviderRateLimited(String),
    ZeroOutputTransport(String),
    Fatal(String),
    Empty,
    ContextOverflow(String),
}

Variants

Transient(String)

Transient failure: rate limit, network blip, retryable provider error. The transport implementation decides whether to retry internally or surface this.

ProviderRateLimited(String)

The selected model/provider is temporarily rate-limited. The transport exhausted its own retry budget before surfacing this.

ZeroOutputTransport(String)

Transport failed before the provider produced an actionable assistant turn. The request can be replayed as a clean provider attempt because there is no runnable assistant turn to preserve.

Fatal(String)

Permanent failure: invalid request, auth, unsupported model.

Empty

Provider returned an empty response after streaming completed. The model produced nothing.

ContextOverflow(String)

Provider rejected the request because the input context exceeds the model’s window. Distinct from Fatal so the loop can apply recovery (compact + retry) instead of terminating. Today the run still ends — the recovery path lands with the Phase 2 OverflowRecovery plugin chain.

Trait Implementations

impl Debug for StreamError

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

Formats the value using the given formatter.

impl Display for StreamError

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

Formats the value using the given formatter.

impl Error for StreamError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<StreamError> for LoopError

fn from(source: StreamError) -> Self

Converts to this type from the input type.