Enum NativeHarnessError 

pub enum NativeHarnessError {
    Failed(String),
    Encode(String),
    ChannelClosed,
    ModelRateLimit(String),
    ModelAuth(String),
    ModelContextOverflow(String),
    ModelNetwork(String),
    ModelBadRequest(String),
    ModelServerError(String),
    ModelOther(String),
    ToolRuntime(String),
}

Categorised native-path failure. Each variant maps 1:1 to an acpx::NativeFaultCategory in core::native_adapter::native_error_to_invoker, which is in turn projected to a RuntimeError by core::error:: native_fault_to_runtime_error. Keeping the buckets named here lets the harness crate produce structured errors without taking on any grpc / proto dependency.

Variants

Failed(String)

Encode(String)

ChannelClosed

ModelRateLimit(String)

LLM provider returned 429.

ModelAuth(String)

LLM provider returned 401 / 403.

ModelContextOverflow(String)

Prompt + completion exceeded the model’s context window.

ModelNetwork(String)

Transport-level failure (DNS / TCP / TLS / truncated body).

ModelBadRequest(String)

HTTP 400 that is a config error (wrong model name, invalid params). Not retryable — the caller must fix their configuration.

ModelServerError(String)

HTTP 5xx or transient server error. Retryable.

ModelOther(String)

Any other model-side failure not captured above.

ToolRuntime(String)

Sandbox / tool runtime hard error (process spawn refused, envd unreachable). NOT a ToolFailure — those are domain failures the model can observe and recover from; this is RD-side infrastructure breaking under the tool.

Trait Implementations

impl Debug for NativeHarnessError

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

Formats the value using the given formatter.

impl Display for NativeHarnessError

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

Formats the value using the given formatter.

impl Error for NativeHarnessError

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.