Enum ExtensionNegotiationError 

pub enum ExtensionNegotiationError {
    LegacyProtocolExcluded,
    RegistryNotFrozen,
    UnregisteredLocalEnablement(String),
    DiscoveryTooManyExtensions(ExtensionPeer),
    OneSidedSupport {
        id: String,
        missing: ExtensionPeer,
    },
    SettingsCompatibilityRejected(String),
    EffectiveSettingsTooLarge(String),
}

Error returned while deriving a per-request bilateral extension set.

Variants

LegacyProtocolExcluded

Extensions are excluded from exact MCP 2024-11-05 negotiation.

RegistryNotFrozen

Descriptor registration must be frozen before negotiation.

UnregisteredLocalEnablement(String)

A local feature/runtime configuration referenced an unregistered descriptor.

DiscoveryTooManyExtensions(ExtensionPeer)

A discovery map exceeded the generic retained-entry limit.

OneSidedSupport

Only one peer advertised a locally enabled descriptor without its matching fallback.

Fields

id: String

missing: ExtensionPeer

SettingsCompatibilityRejected(String)

The selected typed resolver rejected both independently decoded settings objects.

EffectiveSettingsTooLarge(String)

The normalized settings object could not be fingerprinted within its bound.

Trait Implementations

impl Clone for ExtensionNegotiationError

fn clone(&self) -> ExtensionNegotiationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExtensionNegotiationError

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

Formats the value using the given formatter.

impl Display for ExtensionNegotiationError

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

Formats the value using the given formatter.

impl Eq for ExtensionNegotiationError

impl Error for ExtensionNegotiationError

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 PartialEq for ExtensionNegotiationError

fn eq(&self, other: &ExtensionNegotiationError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ExtensionNegotiationError