Module error 

Error types (re-exported from tower-mcp-types).

See the module documentation for JSON-RPC and MCP-specific error codes.

Structs

JsonRpcError

JSON-RPC error object

MissingRequiredClientCapabilityData

SEP-2575 error data for MissingRequiredClientCapability (-32021).

ToolError

Tool execution error with context

UnsupportedProtocolVersionData

SEP-2575 error data for UnsupportedProtocolVersion (-32022).

Enums

Error

tower-mcp error type

ErrorCode

Standard JSON-RPC error codes

McpErrorCode

MCP-specific error codes (in the -32000 to -32099 range).

Traits

ResultExt

Extension trait for converting errors into tower-mcp tool errors.

Type Aliases

BoxError

Type-erased error type used for middleware composition.

Result

Result type alias for tower-mcp