Enum ToolError 

#[non_exhaustive]
pub enum ToolError {
    InvalidInput(String),
    ExecutionFailed(String),
    Timeout(u64),
    ToolNotFound(String),
    McpError {
        code: i32,
        message: String,
        data: Option<Value>,
    },
}

Tool error type.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidInput(String)

Input validation error.

ExecutionFailed(String)

Execution error.

Timeout(u64)

Timeout.

ToolNotFound(String)

Tool not found.

McpError

MCP transport-layer error (adapted via MCPToolAdapter), preserving code/message/data (P1-6).

Not silently downgraded to ExecutionFailed: the caller can distinguish connection drop / method-not-found / argument errors by code.

Fields

code: i32

MCP error code

message: String

MCP error message

data: Option<Value>

Additional error data (optional)

Trait Implementations

impl Debug for ToolError

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

Formats the value using the given formatter.

impl Display for ToolError

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

Formats the value using the given formatter.

impl Error for ToolError

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.