Enum BusError 

pub enum BusError {
    NotFound(String),
    Invalid(String),
    Conflict(String),
    Unauthenticated(String),
    Forbidden(String),
    Db(Error),
}

Errors produced by the store layer.

These map onto MCP tool errors so that the calling agent gets a useful message instead of an opaque “internal error”.

Variants

NotFound(String)

Invalid(String)

Conflict(String)

Unauthenticated(String)

Forbidden(String)

The caller is known but not allowed: a team-scoped administrative credential reaching for another team, or for a global-only action.

Db(Error)

Implementations

impl BusError

pub fn not_found(msg: impl Into<String>) -> Self

pub fn invalid(msg: impl Into<String>) -> Self

pub fn conflict(msg: impl Into<String>) -> Self

pub fn forbidden(msg: impl Into<String>) -> Self

Trait Implementations

impl Debug for BusError

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

Formats the value using the given formatter.

impl Display for BusError

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

Formats the value using the given formatter.

impl Error for BusError

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<BusError> for ApiError

fn from(err: BusError) -> Self

Converts to this type from the input type.

impl From<BusError> for ErrorData

The one boundary where a store error becomes what a caller reads.

The rule every message crossing it keeps: it is written for its reader — the model that made the call, or the human that model works for — and says what to do. Text written for someone else (this server’s operator, the broker, the transport) is never forwarded into a tool result, not even interpolated as ({e}): it is rewritten where it crosses, in the caller’s terms, and the original goes to tracing. Db below is the general case; broker_unreadable_note in store/inbox.rs and remote_error_text in proxy.rs are the same rule at the two other boundaries a tool result can cross.

fn from(err: BusError) -> Self

Converts to this type from the input type.

impl From<Error> for BusError

fn from(source: Error) -> Self

Converts to this type from the input type.