Enum DetectError 

pub enum DetectError {
    Io {
        error: Error,
    },
    Unusable {
        status: StatusCode,
        preview: String,
    },
    Neither {
        status: StatusCode,
        source: LegacySseError,
    },
}

Why a server could not be classified.

Variants

Io

The probe request never reached the peer.

Fields

error: Error

The transport’s own account of the failure.

Unusable

The probe was answered with a status the rule does not cover.

Its own variant rather than a bare HttpClientError, because which status it was is the entire decision and a caller that gets it as a string has to re-derive the branch the rule already made. A 5xx is the case that matters: the peer answered, it speaks the new transport, and something on it is broken.

Fields

status: StatusCode

The status the peer answered with.

preview: String

The first 200 characters of the body, decoded lossily.

Neither

The peer answered 4xx and then would not open a stream either.

The two halves of the rule both ran and neither produced a transport, which means the URL is not an MCP server at all. Reporting “no transport” without saying which half failed would send a reader looking at the wrong transport.

Fields

status: StatusCode

The status that triggered the fallback.

source: LegacySseError

What the GET half said.

Trait Implementations

impl Debug for DetectError

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

Formats the value using the given formatter.

impl Display for DetectError

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

Formats the value using the given formatter.

impl Error for DetectError

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<DetectError> for ConnectError

fn from(source: DetectError) -> Self

Converts to this type from the input type.