Enum SdkErrorCodes 

pub enum SdkErrorCodes {
    CONNECTION_CLOSED = -32_000,
    REQUEST_TIMEOUT = -32_001,
    RESOURCE_NOT_FOUND = -32_002,
    BAD_REQUEST = -32_015,
    SESSION_NOT_FOUND = -32_016,
    MISSING_REQUIRED_CLIENT_CAPABILITY = -32_021,
    UNSUPPORTED_PROTOCOL_VERSION = -32_022,
    INVALID_REQUEST = -32_600,
    METHOD_NOT_FOUND = -32_601,
    INVALID_PARAMS = -32_602,
    INTERNAL_ERROR = -32_603,
    PARSE_ERROR = -32_700,
}

Enum representing SDK error codes.

Grouping (reconciled with the 2026-07-28 schema):

• SDK-internal (transport/session; not in the MCP spec): CONNECTION_CLOSED, REQUEST_TIMEOUT, RESOURCE_NOT_FOUND, BAD_REQUEST, SESSION_NOT_FOUND.
• MCP-spec (also schema-derived in RpcErrorCodes and as typed error structs MissingRequiredClientCapabilityError / UnsupportedProtocolVersionError): MISSING_REQUIRED_CLIENT_CAPABILITY, UNSUPPORTED_PROTOCOL_VERSION.
• JSON-RPC standard (also schema-derived in RpcErrorCodes and as typed error structs ParseError/InvalidRequestError/etc.): INVALID_REQUEST, METHOD_NOT_FOUND, INVALID_PARAMS, INTERNAL_ERROR, PARSE_ERROR.

Prefer RpcErrorCodes (schema-derived) for protocol errors on the wire; use SdkErrorCodes for SDK-internal transport/session failures.

Variants

CONNECTION_CLOSED = -32_000

REQUEST_TIMEOUT = -32_001

RESOURCE_NOT_FOUND = -32_002

BAD_REQUEST = -32_015

SESSION_NOT_FOUND = -32_016

MISSING_REQUIRED_CLIENT_CAPABILITY = -32_021

UNSUPPORTED_PROTOCOL_VERSION = -32_022

INVALID_REQUEST = -32_600

METHOD_NOT_FOUND = -32_601

INVALID_PARAMS = -32_602

INTERNAL_ERROR = -32_603

PARSE_ERROR = -32_700

Trait Implementations

impl Display for SdkErrorCodes

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

Formats the value using the given formatter.

impl From<SdkErrorCodes> for i64

fn from(code: SdkErrorCodes) -> Self

Converts to this type from the input type.